grab from latest android

git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81

23 files changed, 2614 insertions, 0 deletions

diff --git a/include/views/SkApplication.h b/include/views/SkApplication.h
new file mode 100644
index 0000000000..4c4a4fb0d1
--- /dev/null
+++ b/include/views/SkApplication.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkApplication_DEFINED
+#define SkApplication_DEFINED
+
+class SkOSWindow;
+
+extern SkOSWindow* create_sk_window(void* hwnd);
+extern void application_init();
+extern void application_term();
+
+#endif // SkApplication_DEFINED
diff --git a/include/views/SkBGViewArtist.h b/include/views/SkBGViewArtist.h
new file mode 100644
index 0000000000..1bca42fa52
--- /dev/null
+++ b/include/views/SkBGViewArtist.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkBGViewArtist_DEFINED
+#define SkBGViewArtist_DEFINED
+
+#include "SkView.h"
+#include "SkPaint.h"
+
+class SkBGViewArtist : public SkView::Artist {
+public:
+            SkBGViewArtist(SkColor c = SK_ColorWHITE);
+    virtual ~SkBGViewArtist();
+
+    const SkPaint&  paint() const { return fPaint; }
+    SkPaint&        paint() { return fPaint; }
+
+protected:
+    // overrides
+    virtual void onDraw(SkView*, SkCanvas*);
+    virtual void onInflate(const SkDOM&, const SkDOM::Node*);
+
+private:
+    SkPaint fPaint;
+};
+
+#endif
+
diff --git a/include/views/SkBorderView.h b/include/views/SkBorderView.h
new file mode 100644
index 0000000000..94ccc1f0a5
--- /dev/null
+++ b/include/views/SkBorderView.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkBorderView_DEFINED
+#define SkBorderView_DEFINED
+
+#include "SkView.h"
+#include "SkWidgetViews.h"
+#include "SkAnimator.h"
+
+class SkBorderView : public SkWidgetView {
+public:
+    SkBorderView();
+    ~SkBorderView();
+    void setSkin(const char skin[]);
+    SkScalar getLeft() const { return fLeft; }
+    SkScalar getRight() const { return fRight; }
+    SkScalar getTop() const { return fTop; }
+    SkScalar getBottom() const { return fBottom; }
+protected:
+    //overrides
+    virtual void onInflate(const SkDOM& dom,  const SkDOM::Node* node);
+    virtual void onSizeChange();
+    virtual void onDraw(SkCanvas* canvas);
+    virtual bool onEvent(const SkEvent& evt);
+private:
+    SkAnimator fAnim;
+    SkScalar fLeft, fRight, fTop, fBottom;  //margin on each side
+    SkRect fMargin;
+
+    typedef SkWidgetView INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkEvent.h b/include/views/SkEvent.h
new file mode 100644
index 0000000000..2b43f34f5b
--- /dev/null
+++ b/include/views/SkEvent.h
@@ -0,0 +1,244 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkEvent_DEFINED
+#define SkEvent_DEFINED
+
+#include "SkDOM.h"
+#include "SkMetaData.h"
+#include "SkString.h"
+
+//class SkOSWindow;
+
+/** Unique 32bit id used to identify an instance of SkEventSink. When events are
+    posted, they are posted to a specific sinkID. When it is time to dispatch the
+    event, the sinkID is used to find the specific SkEventSink object. If it is found,
+    its doEvent() method is called with the event.
+*/
+typedef uint32_t SkEventSinkID;
+
+/** \class SkEvent
+
+    SkEvents are used to communicate type-safe information to SkEventSinks.
+    SkEventSinks (including SkViews) each have a unique ID, which is stored
+    in an event. This ID is used to target the event once it has been "posted".
+*/
+class SkEvent {
+public:
+    /** Default construct, creating an empty event.
+    */
+    SkEvent();
+    /** Construct a new event with the specified type.
+    */
+    explicit SkEvent(const SkString& type);
+    /** Construct a new event with the specified type.
+    */
+    explicit SkEvent(const char type[]);
+    /** Construct a new event by copying the fields from the src event.
+    */
+    SkEvent(const SkEvent& src);
+    ~SkEvent();
+
+//  /** Return the event's type (will never be null) */
+//  const char* getType() const;
+    /** Copy the event's type into the specified SkString parameter */
+    void    getType(SkString* str) const;
+    /** Returns true if the event's type matches exactly the specified type (case sensitive) */
+    bool    isType(const SkString& str) const;
+    /** Returns true if the event's type matches exactly the specified type (case sensitive) */
+    bool    isType(const char type[], size_t len = 0) const;
+    /** Set the event's type to the specified string.
+        In XML, use the "type" attribute.
+    */
+    void    setType(const SkString&);
+    /** Set the event's type to the specified string.
+        In XML, use the "type" attribute.
+    */
+    void    setType(const char type[], size_t len = 0);
+
+    /** Return the event's unnamed 32bit field. Default value is 0 */
+    uint32_t getFast32() const { return f32; }
+    /** Set the event's unnamed 32bit field. In XML, use
+        the subelement <data fast32=... />
+    */
+    void    setFast32(uint32_t x) { f32 = x; }
+
+    /** Return true if the event contains the named 32bit field, and return the field
+        in value (if value is non-null). If there is no matching named field, return false
+        and ignore the value parameter.
+    */
+    bool    findS32(const char name[], int32_t* value = NULL) const { return fMeta.findS32(name, value); }
+    /** Return true if the event contains the named SkScalar field, and return the field
+        in value (if value is non-null). If there is no matching named field, return false
+        and ignore the value parameter.
+    */
+    bool    findScalar(const char name[], SkScalar* value = NULL) const { return fMeta.findScalar(name, value); }
+    /** Return true if the event contains the named SkScalar field, and return the fields
+        in value[] (if value is non-null), and return the number of SkScalars in count (if count is non-null).
+        If there is no matching named field, return false and ignore the value and count parameters.
+    */
+    const SkScalar* findScalars(const char name[], int* count, SkScalar values[] = NULL) const { return fMeta.findScalars(name, count, values); }
+    /** Return the value of the named string field, or if no matching named field exists, return null.
+    */
+    const char* findString(const char name[]) const { return fMeta.findString(name); }
+    /** Return true if the event contains the named pointer field, and return the field
+        in value (if value is non-null). If there is no matching named field, return false
+        and ignore the value parameter.
+    */
+    bool    findPtr(const char name[], void** value) const { return fMeta.findPtr(name, value); }
+    bool    findBool(const char name[], bool* value) const { return fMeta.findBool(name, value); }
+
+    /** Returns true if ethe event contains the named 32bit field, and if it equals the specified value */
+    bool    hasS32(const char name[], int32_t value) const { return fMeta.hasS32(name, value); }
+    /** Returns true if ethe event contains the named SkScalar field, and if it equals the specified value */
+    bool    hasScalar(const char name[], SkScalar value) const { return fMeta.hasScalar(name, value); }
+    /** Returns true if ethe event contains the named string field, and if it equals (using strcmp) the specified value */
+    bool    hasString(const char name[], const char value[]) const { return fMeta.hasString(name, value); }
+    /** Returns true if ethe event contains the named pointer field, and if it equals the specified value */
+    bool    hasPtr(const char name[], void* value) const { return fMeta.hasPtr(name, value); }
+    bool    hasBool(const char name[], bool value) const { return fMeta.hasBool(name, value); }
+
+    /** Add/replace the named 32bit field to the event. In XML use the subelement <data name=... s32=... /> */
+    void    setS32(const char name[], int32_t value) { fMeta.setS32(name, value); }
+    /** Add/replace the named SkScalar field to the event. In XML use the subelement <data name=... scalar=... /> */
+    void    setScalar(const char name[], SkScalar value) { fMeta.setScalar(name, value); }
+    /** Add/replace the named SkScalar[] field to the event. */
+    SkScalar* setScalars(const char name[], int count, const SkScalar values[] = NULL) { return fMeta.setScalars(name, count, values); }
+    /** Add/replace the named string field to the event. In XML use the subelement <data name=... string=... */
+    void    setString(const char name[], const SkString& value) { fMeta.setString(name, value.c_str()); }
+    /** Add/replace the named string field to the event. In XML use the subelement <data name=... string=... */
+    void    setString(const char name[], const char value[]) { fMeta.setString(name, value); }
+    /** Add/replace the named pointer field to the event. There is no XML equivalent for this call */
+    void    setPtr(const char name[], void* value) { fMeta.setPtr(name, value); }
+    void    setBool(const char name[], bool value) { fMeta.setBool(name, value); }
+
+    /** Return the underlying metadata object */
+    SkMetaData&         getMetaData() { return fMeta; }
+    /** Return the underlying metadata object */
+    const SkMetaData&   getMetaData() const { return fMeta; }
+
+    void tron() { SkDEBUGCODE(fDebugTrace = true;) }
+    void troff() { SkDEBUGCODE(fDebugTrace = false;) }
+    bool isDebugTrace() const
+    {
+#ifdef SK_DEBUG
+        return fDebugTrace;
+#else
+        return false;
+#endif
+    }
+
+    /** Call this to initialize the event from the specified XML node */
+    void    inflate(const SkDOM&, const SkDOM::Node*);
+
+    SkDEBUGCODE(void dump(const char title[] = NULL);)
+
+    /** Post the specified event to the event queue, targeting the specified eventsink, with an optional
+        delay. The event must be dynamically allocated for this. It cannot be a global or on the stack.
+        After this call, ownership is transfered to the system, so the caller must not retain
+        the event's ptr. Returns false if the event could not be posted (which means it will have been deleted).
+    */
+    static bool Post(SkEvent* evt, SkEventSinkID targetID, SkMSec delay = 0);
+    /** Post the specified event to the event queue, targeting the specified eventsink, to be delivered on/after the
+        specified millisecond time. The event must be dynamically allocated for this. It cannot be a global or on the stack.
+        After this call, ownership is transfered to the system, so the caller must not retain
+        the event's ptr. Returns false if the event could not be posted (which means it will have been deleted).
+    */
+    static bool PostTime(SkEvent* evt, SkEventSinkID targetID, SkMSec time);
+
+    /** Helper method for calling SkEvent::PostTime(this, ...), where the caller specifies a delay.
+        The real "time" will be computed automatically by sampling the clock and adding its value
+        to delay.
+    */
+    bool post(SkEventSinkID sinkID, SkMSec delay = 0)
+    {
+        return SkEvent::Post(this, sinkID, delay);
+    }
+
+    void postTime(SkEventSinkID sinkID, SkMSec time)
+    {
+        SkEvent::PostTime(this, sinkID, time);
+    }
+
+    ///////////////////////////////////////////////
+    /** Porting layer must call these functions **/
+    ///////////////////////////////////////////////
+
+    /** Global initialization function for the SkEvent system. Should be called exactly
+        once before any other event method is called, and should be called after the
+        call to SkGraphics::Init().
+    */
+    static void     Init();
+    /** Global cleanup function for the SkEvent system. Should be called exactly once after
+        all event methods have been called, and should be called before calling SkGraphics::Term().
+    */
+    static void     Term();
+
+    /** Call this to process one event from the queue. If it returns true, there are more events
+        to process.
+    */
+    static bool     ProcessEvent();
+    /** Call this whenever the requested timer has expired (requested by a call to SetQueueTimer).
+        It will post any delayed events whose time as "expired" onto the event queue.
+        It may also call SignalQueueTimer() and SignalNonEmptyQueue().
+    */
+    static void     ServiceQueueTimer();
+
+    ////////////////////////////////////////////////////
+    /** Porting layer must implement these functions **/
+    ////////////////////////////////////////////////////
+
+    /** Called whenever an SkEvent is posted to an empty queue, so that the OS
+        can be told to later call Dequeue().
+    */
+    static void SignalNonEmptyQueue();
+    /** Called whenever the delay until the next delayed event changes. If zero is
+        passed, then there are no more queued delay events.
+    */
+    static void SignalQueueTimer(SkMSec delay);
+
+#ifndef SK_USE_WXWIDGETS
+#ifdef SK_BUILD_FOR_WIN
+    static bool WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
+#elif defined(SK_BUILD_FOR_UNIXx)
+  static uint32_t HandleTimer(uint32_t, void*);
+  static bool WndProc(Display*, Window, XEvent&);
+#endif
+#else
+    // Don't know yet what this will be
+    //static bool CustomEvent();
+#endif
+
+private:
+    SkMetaData      fMeta;
+    mutable char*   fType;  // may be characters with low bit set to know that it is not a pointer
+    uint32_t        f32;
+    SkDEBUGCODE(bool fDebugTrace;)
+
+    // these are for our implementation of the event queue
+    SkEventSinkID   fTargetID;
+    SkMSec          fTime;
+    SkEvent*        fNextEvent; // either in the delay or normal event queue
+    void initialize(const char* type, size_t typeLen);
+
+    static bool Enqueue(SkEvent* evt);
+    static SkMSec EnqueueTime(SkEvent* evt, SkMSec time);
+    static SkEvent* Dequeue(SkEventSinkID* targetID);
+    static bool     QHasEvents();
+};
+
+#endif
+
diff --git a/include/views/SkEventSink.h b/include/views/SkEventSink.h
new file mode 100644
index 0000000000..27a67437c3
--- /dev/null
+++ b/include/views/SkEventSink.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkEventSink_DEFINED
+#define SkEventSink_DEFINED
+
+#include "SkRefCnt.h"
+#include "SkEvent.h"
+
+struct SkTagList;
+
+/** \class SkEventSink
+
+    SkEventSink is the base class for all objects that receive SkEvents.
+*/
+class SkEventSink : public SkRefCnt {
+public:
+            SkEventSink();
+    virtual ~SkEventSink();
+
+    /** Returns this eventsink's unique ID. Use this to post SkEvents to
+        this eventsink.
+    */
+    SkEventSinkID getSinkID() const { return fID; }
+
+    /** Call this to pass an event to this object for processing. Returns true if the
+        event was handled.
+    */
+    bool doEvent(const SkEvent&);
+    /** Returns true if the sink (or one of its subclasses) understands the event as a query.
+        If so, the sink may modify the event to communicate its "answer".
+    */
+    bool doQuery(SkEvent* query);
+
+    /** Add sinkID to the list of listeners, to receive events from calls to sendToListeners()
+        and postToListeners(). If sinkID already exists in the listener list, no change is made.
+    */
+    void    addListenerID(SkEventSinkID sinkID);
+    /** Copy listeners from one event sink to another, typically from parent to child.
+        @param from the event sink to copy the listeners from
+    */
+    void copyListeners(const SkEventSink& from);
+    /** Remove sinkID from the list of listeners. If sinkID does not appear in the list,
+        no change is made.
+    */
+    void    removeListenerID(SkEventSinkID);
+    /** Returns true if there are 1 or more listeners attached to this eventsink
+    */
+    bool    hasListeners() const;
+    /** Posts a copy of evt to each of the eventsinks in the lisener list.
+    */
+    void    postToListeners(const SkEvent& evt, SkMSec delay = 0);
+
+    enum EventResult {
+        kHandled_EventResult,       //!< the eventsink returned true from its doEvent method
+        kNotHandled_EventResult,    //!< the eventsink returned false from its doEvent method
+        kSinkNotFound_EventResult   //!< no matching eventsink was found for the event's getSink().
+    };
+    /** DoEvent handles searching for an eventsink object that matches the targetID.
+        If one is found, it calls the sink's doEvent method, returning
+        either kHandled_EventResult or kNotHandled_EventResult. If no matching
+        eventsink is found, kSinkNotFound_EventResult is returned.
+    */
+    static EventResult DoEvent(const SkEvent&, SkEventSinkID targetID);
+
+    /** Returns the matching eventsink, or null if not found
+    */
+    static SkEventSink* FindSink(SkEventSinkID);
+
+protected:
+    /** Override this to handle events in your subclass. Be sure to call the inherited version
+        for events that you don't handle.
+    */
+    virtual bool onEvent(const SkEvent&);
+    virtual bool onQuery(SkEvent*);
+
+    SkTagList*  findTagList(U8CPU tag) const;
+    void        addTagList(SkTagList*);
+    void        removeTagList(U8CPU tag);
+
+private:
+    SkEventSinkID   fID;
+    SkTagList*      fTagHead;
+
+    // for our private link-list
+    SkEventSink*    fNextSink;
+};
+
+#endif
+
diff --git a/include/views/SkImageView.h b/include/views/SkImageView.h
new file mode 100644
index 0000000000..157abb180e
--- /dev/null
+++ b/include/views/SkImageView.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkImageView_DEFINED
+#define SkImageView_DEFINED
+
+#include "SkView.h"
+#include "SkString.h"
+
+class SkAnimator;
+class SkBitmap;
+struct SkMatrix;
+
+class SkImageView : public SkView {
+public:
+            SkImageView();
+    virtual ~SkImageView();
+
+    void    getUri(SkString*) const;
+    void    setUri(const char []);
+    void    setUri(const SkString&);
+    
+
+    enum ScaleType {
+        kMatrix_ScaleType,
+        kFitXY_ScaleType,
+        kFitStart_ScaleType,
+        kFitCenter_ScaleType,
+        kFitEnd_ScaleType
+    };
+    ScaleType   getScaleType() const { return (ScaleType)fScaleType; }
+    void        setScaleType(ScaleType);
+    
+    bool    getImageMatrix(SkMatrix*) const;
+    void    setImageMatrix(const SkMatrix*);
+
+protected:
+    // overrides
+    virtual bool    onEvent(const SkEvent&);
+    virtual void    onDraw(SkCanvas*);
+    virtual void    onInflate(const SkDOM&, const SkDOMNode*);
+    
+private:
+    SkString    fUri;
+    SkMatrix*   fMatrix;    // null or copy of caller's matrix ,,,,,
+    union {
+        SkAnimator* fAnim;
+        SkBitmap* fBitmap;
+    } fData;
+    uint8_t     fScaleType;
+    SkBool8     fDataIsAnim;    // as opposed to bitmap
+    SkBool8     fUriIsValid;
+    
+    void    onUriChange();
+    bool    getDataBounds(SkRect* bounds);
+    bool    freeData();
+    bool    ensureUriIsLoaded();
+
+    typedef SkView INHERITED;
+};
+
+#endif
diff --git a/include/views/SkKey.h b/include/views/SkKey.h
new file mode 100644
index 0000000000..3fd5114346
--- /dev/null
+++ b/include/views/SkKey.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkKey_DEFINED
+#define SkKey_DEFINED
+
+#include "SkTypes.h"
+
+enum SkKey {
+    //reordering these to match android.app.KeyEvent 
+    kNONE_SkKey,    //corresponds to android's UNKNOWN
+    
+    kLeftSoftKey_SkKey,
+    kRightSoftKey_SkKey,
+
+    kHome_SkKey,    //!< the home key - added to match android
+    kBack_SkKey,    //!< (CLR)
+    kSend_SkKey,    //!< the green (talk) key
+    kEnd_SkKey,     //!< the red key
+    
+    k0_SkKey,
+    k1_SkKey,
+    k2_SkKey,
+    k3_SkKey,
+    k4_SkKey,
+    k5_SkKey,
+    k6_SkKey,
+    k7_SkKey,
+    k8_SkKey,
+    k9_SkKey,
+    kStar_SkKey,    //!< the * key
+    kHash_SkKey,    //!< the # key
+
+    kUp_SkKey,
+    kDown_SkKey,
+    kLeft_SkKey,
+    kRight_SkKey,
+
+    kOK_SkKey,      //!< the center key
+
+    kVolUp_SkKey,   //!< volume up - match android
+    kVolDown_SkKey, //!< volume down - same
+    kPower_SkKey,   //!< power button - same
+    kCamera_SkKey,  //!< camera         - same
+
+    kSkKeyCount
+};
+
+#endif
+
diff --git a/include/views/SkMetaData.h b/include/views/SkMetaData.h
new file mode 100644
index 0000000000..21739fef4c
--- /dev/null
+++ b/include/views/SkMetaData.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkMetaData_DEFINED
+#define SkMetaData_DEFINED
+
+#include "SkScalar.h"
+
+class SkMetaData {
+public:
+    SkMetaData();
+    SkMetaData(const SkMetaData& src);
+    ~SkMetaData();
+
+    SkMetaData& operator=(const SkMetaData& src);
+
+    void    reset();
+
+    bool    findS32(const char name[], int32_t* value = NULL) const;
+    bool    findScalar(const char name[], SkScalar* value = NULL) const;
+    const SkScalar* findScalars(const char name[], int* count, SkScalar values[] = NULL) const;
+    const char* findString(const char name[]) const;
+    bool    findPtr(const char name[], void** value = NULL) const;
+    bool    findBool(const char name[], bool* value = NULL) const;
+
+    bool    hasS32(const char name[], int32_t value) const
+    {
+        int32_t v;
+        return this->findS32(name, &v) && v == value;
+    }
+    bool    hasScalar(const char name[], SkScalar value) const
+    {
+        SkScalar    v;
+        return this->findScalar(name, &v) && v == value;
+    }
+    bool    hasString(const char name[], const char value[]) const
+    {
+        const char* v = this->findString(name);
+        return  v == NULL && value == NULL ||
+                v != NULL && value != NULL && !strcmp(v, value);
+    }
+    bool    hasPtr(const char name[], void* value) const
+    {
+        void*   v;
+        return this->findPtr(name, &v) && v == value;
+    }
+    bool    hasBool(const char name[], bool value) const
+    {
+        bool    v;
+        return this->findBool(name, &v) && v == value;
+    }
+
+    void    setS32(const char name[], int32_t value);
+    void    setScalar(const char name[], SkScalar value);
+    SkScalar* setScalars(const char name[], int count, const SkScalar values[] = NULL);
+    void    setString(const char name[], const char value[]);
+    void    setPtr(const char name[], void* value);
+    void    setBool(const char name[], bool value);
+
+    bool    removeS32(const char name[]);
+    bool    removeScalar(const char name[]);
+    bool    removeString(const char name[]);
+    bool    removePtr(const char name[]);
+    bool    removeBool(const char name[]);
+
+    SkDEBUGCODE(static void UnitTest();)
+
+    enum Type {
+        kS32_Type,
+        kScalar_Type,
+        kString_Type,
+        kPtr_Type,
+        kBool_Type,
+
+        kTypeCount
+    };
+
+    struct Rec;
+    class Iter;
+    friend class Iter;
+
+    class Iter {
+    public:
+        Iter() : fRec(NULL) {}
+        Iter(const SkMetaData&);
+
+        /** Reset the iterator, so that calling next() will return the first
+            data element. This is done implicitly in the constructor.
+        */
+        void    reset(const SkMetaData&);
+
+        /** Each time next is called, it returns the name of the next data element,
+            or null when there are no more elements. If non-null is returned, then the
+            element's type is returned (if not null), and the number of data values
+            is returned in count (if not null).
+        */
+        const char* next(Type*, int* count);
+
+    private:
+        Rec* fRec;
+    };
+
+public:
+    struct Rec {
+        Rec*        fNext;
+        uint16_t    fDataCount; // number of elements
+        uint8_t     fDataLen;   // sizeof a single element
+#ifdef SK_DEBUG
+        Type        fType;
+#else
+        uint8_t     fType;
+#endif
+
+#ifdef SK_DEBUG
+        const char* fName;
+        union {
+            int32_t     fS32;
+            SkScalar    fScalar;
+            const char* fString;
+            void*       fPtr;
+            bool        fBool;
+        } fData;
+#endif
+
+        const void* data() const { return (this + 1); }
+        void*       data() { return (this + 1); }
+        const char* name() const { return (const char*)this->data() + fDataLen * fDataCount; }
+        char*       name() { return (char*)this->data() + fDataLen * fDataCount; }
+
+        static Rec* Alloc(size_t);
+        static void Free(Rec*);
+    };
+    Rec*    fRec;
+
+    const Rec* find(const char name[], Type) const;
+    void* set(const char name[], const void* data, size_t len, Type, int count);
+    bool remove(const char name[], Type);
+};
+
+#endif
+
diff --git a/include/views/SkOSMenu.h b/include/views/SkOSMenu.h
new file mode 100644
index 0000000000..433a60155c
--- /dev/null
+++ b/include/views/SkOSMenu.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkOSMenu_DEFINED
+#define SkOSMenu_DEFINED
+
+#include "SkEvent.h"
+#include "SkTDArray.h"
+
+class SkOSMenu {
+public:
+    explicit SkOSMenu(const char title[]);
+    ~SkOSMenu();
+
+    const char* getTitle() const { return fTitle; }
+
+    void    appendItem(const char title[], const char eventType[], int32_t eventData);
+
+    // called by SkOSWindow when it receives an OS menu event
+    int         countItems() const;
+    const char* getItem(int index, uint32_t* cmdID) const;
+
+    SkEvent* createEvent(uint32_t os_cmd);
+
+private:
+    const char* fTitle;
+
+    struct Item {
+        const char* fTitle;
+        const char* fEventType;
+        uint32_t    fEventData;
+        uint32_t    fOSCmd; // internal
+    };
+    SkTDArray<Item> fItems;
+
+    // illegal
+    SkOSMenu(const SkOSMenu&);
+    SkOSMenu& operator=(const SkOSMenu&);
+};
+
+#endif
+
diff --git a/include/views/SkOSSound.h b/include/views/SkOSSound.h
new file mode 100644
index 0000000000..5d77955eda
--- /dev/null
+++ b/include/views/SkOSSound.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkOSSound_DEFINED
+#define SkOSSound_DEFINED
+
+#include "SkTypes.h"
+
+class SkOSSound {
+public:
+    static void Play(const char path[]);
+    static void Pause();
+    static void Resume();
+    static bool TogglePause();  // returns true if we are now playing, or false if we're now paused
+    static void Stop();
+
+    //  volume runs from 0 (silent) to 0xFF (max-volume)
+    static uint8_t GetVolume();
+    static void SetVolume(U8CPU volume);
+};
+
+#endif
+
diff --git a/include/views/SkOSWindow_Mac.h b/include/views/SkOSWindow_Mac.h
new file mode 100644
index 0000000000..1f6a1fa9b2
--- /dev/null
+++ b/include/views/SkOSWindow_Mac.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkOSWindow_Mac_DEFINED
+#define SkOSWindow_Mac_DEFINED
+
+#include "SkWindow.h"
+
+class SkOSWindow : public SkWindow {
+public:
+    SkOSWindow(void* hwnd);
+
+    void*   getHWND() const { return fHWND; }
+    void    updateSize();
+
+    static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
+
+    static pascal OSStatus SkOSWindow::EventHandler( EventHandlerCallRef inHandler, EventRef inEvent, void* userData );
+
+protected:
+    // overrides from SkWindow
+    virtual void onHandleInval(const SkIRect&);
+    // overrides from SkView
+    virtual void onAddMenu(const SkOSMenu*);
+    virtual void onSetTitle(const char[]);
+
+private:
+    void*   fHWND;
+
+    void    doPaint(void* ctx);
+
+    typedef SkWindow INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkOSWindow_Unix.h b/include/views/SkOSWindow_Unix.h
new file mode 100644
index 0000000000..26f51be162
--- /dev/null
+++ b/include/views/SkOSWindow_Unix.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkOSWindow_Unix_DEFINED
+#define SkOSWindow_Unix_DEFINED
+
+#include "SkWindow.h"
+#include <X11/Xlib.h>
+
+struct SkUnixWindow {
+  Display* fDisplay;
+  Window fWin;
+  size_t fOSWin;
+};
+
+class SkOSWindow : public SkWindow {
+public:
+    SkOSWindow(Display* display, Window win);
+
+    void*   getHWND() const { return (void*)fUnixWindow.fWin; }
+  void* getDisplay() const { return (void*)fUnixWindow.fDisplay; }
+  void* getUnixWindow() const { return (void*)&fUnixWindow; }
+  void  setSize(int width, int height);
+    void    updateSize();
+
+    static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
+
+    static bool WndProc(SkUnixWindow* w,  XEvent &e);
+
+protected:
+    // overrides from SkWindow
+    virtual void onHandleInval(const SkIRect&);
+    // overrides from SkView
+    virtual void onAddMenu(const SkOSMenu*);
+
+private:
+    SkUnixWindow  fUnixWindow;
+
+    void    doPaint();
+
+    void*   fMBar;
+
+    typedef SkWindow INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkOSWindow_Win.h b/include/views/SkOSWindow_Win.h
new file mode 100644
index 0000000000..6d821dbb46
--- /dev/null
+++ b/include/views/SkOSWindow_Win.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkOSWindow_Win_DEFINED
+#define SkOSWindow_Win_DEFINED
+
+#include "SkWindow.h"
+
+class SkOSWindow : public SkWindow {
+public:
+    SkOSWindow(void* hwnd);
+
+    void*   getHWND() const { return fHWND; }
+    void    setSize(int width, int height);
+    void    updateSize();
+
+    static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
+
+    static bool WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
+    static bool SkOSWindow::QuitOnDeactivate(HWND hWnd);
+
+    enum {
+        SK_WM_SkEvent = WM_APP + 1000,
+        SK_WM_SkTimerID = 0xFFFF    // just need a non-zero value
+    };
+
+protected:
+    virtual bool quitOnDeactivate() { return true; }
+
+    // overrides from SkWindow
+    virtual void onHandleInval(const SkIRect&);
+    // overrides from SkView
+    virtual void onAddMenu(const SkOSMenu*);
+
+private:
+    void*   fHWND;
+
+    void    doPaint(void* ctx);
+
+    HMENU   fMBar;
+
+    typedef SkWindow INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkOSWindow_wxwidgets.h b/include/views/SkOSWindow_wxwidgets.h
new file mode 100644
index 0000000000..c5dfc7c45a
--- /dev/null
+++ b/include/views/SkOSWindow_wxwidgets.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ *  SkOSWindow_wxwidgets.h
+ *  wxwidgets
+ *
+ *  Copyright 2005 __MyCompanyName__. All rights reserved.
+ *
+ */
+
+#ifndef SkOSWindow_wxwidgets_DEFINED
+#define SkOSWindow_wxwidgets_DEFINED
+
+#include "SkWindow.h"
+#include "wx/frame.h"
+
+class SkOSWindow: public SkWindow
+{
+public:
+    SkOSWindow();
+    SkOSWindow(const wxString& title, int x, int y, int width, int height);
+    ~SkOSWindow();
+    
+    wxFrame* getWXFrame() const { return fFrame; }
+    
+    void updateSize();
+    
+protected:
+    virtual void onHandleInval(const SkIRect&);
+    virtual void onAddMenu(const SkOSMenu*);
+    
+private:
+    wxFrame* fFrame;
+    typedef SkWindow INHERITED;
+    
+};
+
+#endifpedef SkWindow INHERITED;
diff --git a/include/views/SkProgressBarView.h b/include/views/SkProgressBarView.h
new file mode 100644
index 0000000000..6341fcb051
--- /dev/null
+++ b/include/views/SkProgressBarView.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkProgressBarView_DEFINED
+#define SkProgressBarView_DEFINED
+
+#include "SkView.h"
+#include "SkWidgetViews.h"
+#include "SkAnimator.h"
+
+class SkProgressBarView : public SkWidgetView {
+    public:
+        SkProgressBarView();
+        //SkProgressBarView(int max);
+                
+        //inflate: "sk-progress"
+    
+        void reset();   //reset progress to zero
+        void setProgress(int progress);
+        void changeProgress(int diff);
+        void setMax(int max);
+        
+        int getProgress() const { return fProgress; }
+        int getMax() const { return fMax; }
+    
+    protected:
+        //overrides
+        virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+        virtual void onSizeChange();
+        virtual void onDraw(SkCanvas* canvas);
+        virtual bool onEvent(const SkEvent& evt);
+    
+    private:
+        SkAnimator  fAnim;
+        int         fProgress;
+        int         fMax;
+        
+        typedef SkWidgetView INHERITED;
+};
+
+
+
+
+#endif
diff --git a/include/views/SkScrollBarView.h b/include/views/SkScrollBarView.h
new file mode 100644
index 0000000000..b8a5209ddb
--- /dev/null
+++ b/include/views/SkScrollBarView.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkScrollBarView_DEFINED
+#define SkScrollBarView_DEFINED
+
+#include "SkView.h"
+#include "SkWidgetViews.h"
+#include "SkAnimator.h"
+
+class SkScrollBarView : public SkWidgetView {
+public:
+    SkScrollBarView();
+
+    unsigned getStart() const { return fStartPoint; }
+    unsigned getShown() const { return fShownLength; }
+    unsigned getTotal() const { return fTotalLength; }
+
+    void setStart(unsigned start);  
+    void setShown(unsigned shown);
+    void setTotal(unsigned total);
+    
+protected:
+    //overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+    virtual void onSizeChange();
+    virtual void onDraw(SkCanvas* canvas);
+    virtual bool onEvent(const SkEvent& evt);
+
+private:
+    SkAnimator  fAnim;
+    unsigned    fTotalLength, fStartPoint, fShownLength;
+    
+    void adjust();
+    
+    typedef SkWidgetView INHERITED;
+};
+#endif
+
diff --git a/include/views/SkStackViewLayout.h b/include/views/SkStackViewLayout.h
new file mode 100644
index 0000000000..8000319fcb
--- /dev/null
+++ b/include/views/SkStackViewLayout.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkStackViewLayout_DEFINED
+#define SkStackViewLayout_DEFINED
+
+#include "SkView.h"
+
+class SkStackViewLayout : public SkView::Layout {
+public:
+    SkStackViewLayout();
+
+    enum Orient {
+        kHorizontal_Orient,
+        kVertical_Orient,
+
+        kOrientCount
+    };
+    Orient  getOrient() const { return (Orient)fOrient; }
+    void    setOrient(Orient);
+
+    void        getMargin(SkRect*) const;
+    void        setMargin(const SkRect&);
+
+    SkScalar    getSpacer() const { return fSpacer; }
+    void        setSpacer(SkScalar);
+
+    /** Controls the posititioning in the same direction as the orientation
+    */
+    enum Pack {
+        kStart_Pack,
+        kCenter_Pack,
+        kEnd_Pack,
+        
+        kPackCount
+    };
+    Pack    getPack() const { return (Pack)fPack; }
+    void    setPack(Pack);
+
+    /** Controls the posititioning at right angles to the orientation
+    */
+    enum Align {
+        kStart_Align,
+        kCenter_Align,
+        kEnd_Align,
+        kStretch_Align,
+
+        kAlignCount
+    };
+    Align   getAlign() const { return (Align)fAlign; }
+    void    setAlign(Align);
+
+    bool    getRound() const { return SkToBool(fRound); }
+    void    setRound(bool);
+
+protected:
+    virtual void onLayoutChildren(SkView* parent);
+    virtual void onInflate(const SkDOM&, const SkDOM::Node*);
+
+private:
+    SkRect      fMargin;
+    SkScalar    fSpacer;
+    uint8_t     fOrient, fPack, fAlign, fRound;
+};
+
+class SkFillViewLayout : public SkView::Layout {
+public:
+            SkFillViewLayout();
+    void    getMargin(SkRect*) const;
+    void    setMargin(const SkRect&);
+
+protected:
+    // overrides;
+    virtual void onLayoutChildren(SkView* parent);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    SkRect  fMargin;
+    typedef SkView::Layout INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkSystemEventTypes.h b/include/views/SkSystemEventTypes.h
new file mode 100644
index 0000000000..8dfe8bec07
--- /dev/null
+++ b/include/views/SkSystemEventTypes.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkSystemEventTypes_DEFINED
+#define SkSystemEventTypes_DEFINED
+
+/*
+    The goal of these strings is two-fold:
+    1) make funny strings (containing at least one char < 32) to avoid colliding with "user" strings
+    2) keep them <= 4 bytes, so we can avoid an allocation in SkEvent::setType()
+*/
+#define SK_EventType_Delay      "\xd" "lay"
+#define SK_EventType_Inval      "nv" "\xa" "l"
+#define SK_EventType_Key        "key" "\x1" 
+#define SK_EventType_OnEnd "on" "\xe" "n"
+#define SK_EventType_Unichar    "\xc" "har"
+#define SK_EventType_KeyUp      "key" "\xf"
+
+#endif
diff --git a/include/views/SkView.h b/include/views/SkView.h
new file mode 100644
index 0000000000..d5d89dfeed
--- /dev/null
+++ b/include/views/SkView.h
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkView_DEFINED
+#define SkView_DEFINED
+
+#include "SkEventSink.h"
+#include "SkRect.h"
+#include "SkDOM.h"
+#include "SkTDict.h"
+
+class SkCanvas;
+class SkLayerView;
+
+/** \class SkView
+
+    SkView is the base class for screen management. All widgets and controls inherit
+    from SkView.
+*/
+class SkView : public SkEventSink {
+public:
+    enum Flag_Shift {
+        kVisible_Shift,
+        kEnabled_Shift,
+        kFocusable_Shift,
+        kFlexH_Shift,
+        kFlexV_Shift,
+
+        kFlagShiftCount
+    };
+    enum Flag_Mask {
+        kVisible_Mask   = 1 << kVisible_Shift,      //!< set if the view is visible
+        kEnabled_Mask   = 1 << kEnabled_Shift,      //!< set if the view is enabled
+        kFocusable_Mask = 1 << kFocusable_Shift,    //!< set if the view can receive focus
+        kFlexH_Mask     = 1 << kFlexH_Shift,        //!< set if the view's width is stretchable
+        kFlexV_Mask     = 1 << kFlexV_Shift,        //!< set if the view's height is stretchable
+
+        kAllFlagMasks   = (uint32_t)(0 - 1) >> (32 - kFlagShiftCount)
+    };
+
+                SkView(uint32_t flags = 0);
+    virtual     ~SkView();
+
+    /** Return the flags associated with the view
+    */
+    uint32_t    getFlags() const { return fFlags; }
+    /** Set the flags associated with the view
+    */
+    void        setFlags(uint32_t flags);
+
+    /** Helper that returns non-zero if the kVisible_Mask bit is set in the view's flags
+    */
+    int         isVisible() const { return fFlags & kVisible_Mask; }
+    int         isEnabled() const { return fFlags & kEnabled_Mask; }
+    int         isFocusable() const { return fFlags & kFocusable_Mask; }
+    /** Helper to set/clear the view's kVisible_Mask flag */
+    void        setVisibleP(bool);
+    void        setEnabledP(bool);
+    void        setFocusableP(bool);
+
+    /** Return the view's width */
+    SkScalar    width() const { return fWidth; }
+    /** Return the view's height */
+    SkScalar    height() const { return fHeight; }
+    /** Set the view's width and height. These must both be >= 0. This does not affect the view's loc */
+    void        setSize(SkScalar width, SkScalar height);
+    void        setSize(const SkPoint& size) { this->setSize(size.fX, size.fY); }
+    void        setWidth(SkScalar width) { this->setSize(width, fHeight); }
+    void        setHeight(SkScalar height) { this->setSize(fWidth, height); }
+    /** Return a rectangle set to [0, 0, width, height] */
+    void        getLocalBounds(SkRect* bounds) const;
+
+    /** Return the view's left edge */
+    SkScalar    locX() const { return fLoc.fX; }
+    /** Return the view's top edge */
+    SkScalar    locY() const { return fLoc.fY; }
+    /** Set the view's left and top edge. This does not affect the view's size */
+    void        setLoc(SkScalar x, SkScalar y);
+    void        setLoc(const SkPoint& loc) { this->setLoc(loc.fX, loc.fY); }
+    void        setLocX(SkScalar x) { this->setLoc(x, fLoc.fY); }
+    void        setLocY(SkScalar y) { this->setLoc(fLoc.fX, y); }
+    /** Offset (move) the view by the specified dx and dy. This does not affect the view's size */
+    void        offset(SkScalar dx, SkScalar dy);
+
+    /** Call this to have the view draw into the specified canvas. */
+    void        draw(SkCanvas* canvas);
+    /** Call this to invalidate part of all of a view, requesting that the view's
+        draw method be called. The rectangle parameter specifies the part of the view
+        that should be redrawn. If it is null, it specifies the entire view bounds.
+    */
+    void        inval(SkRect* rectOrNull);
+
+    //  Focus management
+
+    SkView* getFocusView() const;
+    bool    hasFocus() const;
+
+    enum FocusDirection {
+        kNext_FocusDirection,
+        kPrev_FocusDirection,
+
+        kFocusDirectionCount
+    };
+    bool    acceptFocus();
+    SkView* moveFocus(FocusDirection);
+
+    //  Click handling
+
+    class Click {
+    public:
+        Click(SkView* target);
+        virtual ~Click();
+
+        const char* getType() const { return fType; }
+        bool        isType(const char type[]) const;
+        void        setType(const char type[]);     // does NOT make a copy of the string
+        void        copyType(const char type[]);    // makes a copy of the string
+
+        enum State {
+            kDown_State,
+            kMoved_State,
+            kUp_State
+        };
+        SkPoint     fOrig, fPrev, fCurr;
+        SkIPoint    fIOrig, fIPrev, fICurr;
+        State       fState;
+    private:
+        SkEventSinkID   fTargetID;
+        char*           fType;
+        bool            fWeOwnTheType;
+
+        void resetType();
+
+        friend class SkView;
+    };
+    Click*  findClickHandler(SkScalar x, SkScalar y);
+
+    static void DoClickDown(Click*, int x, int y);
+    static void DoClickMoved(Click*, int x, int y);
+    static void DoClickUp(Click*, int x, int y);
+
+    /** Send the event to the view's parent, and its parent etc. until one of them
+        returns true from its onEvent call. This view is returned. If no parent handles
+        the event, null is returned.
+    */
+    SkView*     sendEventToParents(const SkEvent&);
+    /** Depricated helper function. Just call event->post(sinkID, delay);
+    */
+    bool    postEvent(SkEvent* evt, SkEventSinkID sinkID, SkMSec delay) { return evt->post(sinkID, delay); }
+
+    //  View hierarchy management
+
+    /** Return the view's parent, or null if it has none. This does not affect the parent's reference count. */
+    SkView*     getParent() const { return fParent; }
+    SkView*     attachChildToFront(SkView* child);
+    /** Attach the child view to this view, and increment the child's reference count. The child view is added
+        such that it will be drawn before all other child views.
+        The child view parameter is returned.
+    */
+    SkView*     attachChildToBack(SkView* child);
+    /** If the view has a parent, detach the view from its parent and decrement the view's reference count.
+        If the parent was the only owner of the view, this will cause the view to be deleted.
+    */
+    void        detachFromParent();
+    /** Attach the child view to this view, and increment the child's reference count. The child view is added
+        such that it will be drawn after all other child views.
+        The child view parameter is returned.
+    */
+    /** Detach all child views from this view. */
+    void        detachAllChildren();
+
+    /** Convert the specified point from global coordinates into view-local coordinates
+    */
+    void        globalToLocal(SkPoint* pt) const { if (pt) this->globalToLocal(pt->fX, pt->fY, pt); }
+    /** Convert the specified x,y from global coordinates into view-local coordinates, returning
+        the answer in the local parameter.
+    */
+    void        globalToLocal(SkScalar globalX, SkScalar globalY, SkPoint* local) const;
+
+    /** \class F2BIter
+    
+        Iterator that will return each of this view's children, in
+        front-to-back order (the order used for clicking). The first
+        call to next() returns the front-most child view. When
+        next() returns null, there are no more child views.
+    */
+    class F2BIter {
+    public:
+        F2BIter(const SkView* parent);
+        SkView* next();
+    private:
+        SkView* fFirstChild, *fChild;
+    };
+
+    /** \class B2FIter
+    
+        Iterator that will return each of this view's children, in
+        back-to-front order (the order they are drawn). The first
+        call to next() returns the back-most child view. When
+        next() returns null, there are no more child views.
+    */
+    class B2FIter {
+    public:
+        B2FIter(const SkView* parent);
+        SkView* next();
+    private:
+        SkView* fFirstChild, *fChild;
+    };
+
+    /** \class Artist
+    
+        Install a subclass of this in a view (calling setArtist()), and then the
+        default implementation of that view's onDraw() will invoke this object
+        automatically.
+    */
+    class Artist : public SkRefCnt {
+    public:
+        void draw(SkView*, SkCanvas*);
+        void inflate(const SkDOM&, const SkDOM::Node*);
+    protected:
+        virtual void onDraw(SkView*, SkCanvas*) = 0;
+        virtual void onInflate(const SkDOM&, const SkDOM::Node*);
+    };
+    /** Return the artist attached to this view (or null). The artist's reference
+        count is not affected.
+    */
+    Artist* getArtist() const;
+    /** Attach the specified artist (or null) to the view, replacing any existing
+        artist. If the new artist is not null, its reference count is incremented.
+        The artist parameter is returned.
+    */
+    Artist* setArtist(Artist* artist);
+
+    /** \class Layout
+    
+        Install a subclass of this in a view (calling setLayout()), and then the
+        default implementation of that view's onLayoutChildren() will invoke
+        this object automatically.
+    */
+    class Layout : public SkRefCnt {
+    public:
+        void layoutChildren(SkView* parent);
+        void inflate(const SkDOM&, const SkDOM::Node*);
+    protected:
+        virtual void onLayoutChildren(SkView* parent) = 0;
+        virtual void onInflate(const SkDOM&, const SkDOM::Node*);
+    };
+
+    /** Return the layout attached to this view (or null). The layout's reference
+        count is not affected.
+    */
+    Layout* getLayout() const;
+    /** Attach the specified layout (or null) to the view, replacing any existing
+        layout. If the new layout is not null, its reference count is incremented.
+        The layout parameter is returned.
+    */
+    Layout* setLayout(Layout*, bool invokeLayoutNow = true);
+    /** If a layout is attached to this view, call its layoutChildren() method
+    */
+    void    invokeLayout();
+
+    /** Call this to initialize this view based on the specified XML node
+    */
+    void    inflate(const SkDOM& dom, const SkDOM::Node* node);
+    /** After a view hierarchy is inflated, this may be called with a dictionary
+        containing pairs of <name, view*>, where the name string was the view's
+        "id" attribute when it was inflated.
+
+        This will call the virtual onPostInflate for this view, and the recursively
+        call postInflate on all of the view's children.
+    */
+    void    postInflate(const SkTDict<SkView*>& ids);
+
+    SkDEBUGCODE(void dump(bool recurse) const;)
+
+protected:
+    /** Override this to draw inside the view. Be sure to call the inherited version too */
+    virtual void    onDraw(SkCanvas*);
+    /** Override this to be notified when the view's size changes. Be sure to call the inherited version too */
+    virtual void    onSizeChange();
+    /** Override this if you want to handle an inval request from this view or one of its children.
+        Tyically this is only overridden by the by the "window". If your subclass does handle the
+        request, return true so the request will not continue to propogate to the parent.
+    */
+    virtual bool    handleInval(const SkRect&);
+    virtual SkCanvas* beforeChildren(SkCanvas* c) { return c; }
+    virtual void afterChildren(SkCanvas* orig) {}
+    /** Override this if you might handle the click
+    */
+    virtual Click*  onFindClickHandler(SkScalar x, SkScalar y);
+    /** Override this to track clicks, returning true as long as you want to track
+        the pen/mouse.
+    */
+    virtual bool    onClick(Click*);
+    /** Override this to initialize your subclass from the XML node. Be sure to call the inherited version too */
+    virtual void    onInflate(const SkDOM& dom, const SkDOM::Node* node);
+    /** Override this if you want to perform post initialization work based on the ID dictionary built
+        during XML parsing. Be sure to call the inherited version too.
+    */
+    virtual void    onPostInflate(const SkTDict<SkView*>&);
+
+public:
+    // default action is to inval the view
+    virtual void    onFocusChange(bool gainFocusP);
+protected:
+
+    // override these if you're acting as a layer/host
+    virtual bool    onGetFocusView(SkView**) const { return false; }
+    virtual bool    onSetFocusView(SkView*) { return false; }
+
+private:
+    SkScalar    fWidth, fHeight;
+    SkPoint     fLoc;
+    SkView*     fParent;
+    SkView*     fFirstChild;
+    SkView*     fNextSibling;
+    SkView*     fPrevSibling;
+    uint8_t     fFlags;
+    uint8_t     fContainsFocus;
+
+    friend class B2FIter;
+    friend class F2BIter;
+    
+    friend class SkLayerView;
+
+    bool    setFocusView(SkView* fvOrNull);
+    SkView* acceptFocus(FocusDirection);
+    void    detachFromParent_NoLayout();
+};
+
+#endif
+
diff --git a/include/views/SkViewInflate.h b/include/views/SkViewInflate.h
new file mode 100644
index 0000000000..3ec65a6f77
--- /dev/null
+++ b/include/views/SkViewInflate.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkViewInflate_DEFINED
+#define SkViewInflate_DEFINED
+
+#include "SkDOM.h"
+#include "SkTDict.h"
+#include "SkEvent.h"
+
+class SkView;
+
+class SkViewInflate {
+public: 
+            SkViewInflate();
+    virtual ~SkViewInflate();
+
+    /** Return the tree of inflated views. If root is null, create the root element
+        as a view, otherwise assume root is that view, and just "inflate" it.
+
+        Returns null if the tree cannot be built.
+    */
+    SkView* inflate(const SkDOM& dom, const SkDOM::Node* node, SkView* root = NULL);
+    SkView* inflate(const char xml[], size_t len, SkView* root = NULL);
+
+    /** Given an id attribute value, return the corresponding view, or null
+        if no match is found.
+    */
+    SkView* findViewByID(const char id[]) const;
+    
+    SkDEBUGCODE(void dump() const;)
+
+protected:
+    /*  Override this in your subclass to handle instantiating views
+        Call the inherited version for nodes you don't recognize.
+
+        Do not call "inflate" on the view, just return it. This will
+        get called automatically after createView returns.
+    */
+    virtual SkView* createView(const SkDOM& dom, const SkDOM::Node* node);
+    /** Base implementation calls view->inflate(dom, node). Subclasses may override this
+        to perform additional initializations to view, either before or after calling
+        the inherited version.
+    */
+    virtual void inflateView(SkView* view, const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    enum {
+        kMinIDStrAlloc = 64
+    };
+    SkTDict<SkView*> fIDs;
+
+    struct IDStr {
+        SkView* fView;
+        char*   fStr;
+    };
+    SkTDArray<IDStr>    fListenTo, fBroadcastTo;
+    SkChunkAlloc        fStrings;
+
+    void addIDStr(SkTDArray<IDStr>* list, SkView*, const char* str);
+
+    void    rInflate(const SkDOM& dom, const SkDOM::Node* node, SkView* parent);
+};
+
+#endif
+
diff --git a/include/views/SkWidget.h b/include/views/SkWidget.h
new file mode 100644
index 0000000000..db85f01ff4
--- /dev/null
+++ b/include/views/SkWidget.h
@@ -0,0 +1,476 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkWidget_DEFINED
+#define SkWidget_DEFINED
+
+#include "SkView.h"
+#include "SkBitmap.h"
+#include "SkDOM.h"
+#include "SkPaint.h"
+#include "SkString.h"
+#include "SkTDArray.h"
+
+//////////////////////////////////////////////////////////////////////////////
+
+class SkWidget : public SkView {
+public:
+    SkWidget(uint32_t flags = 0) : SkView(flags | kFocusable_Mask | kEnabled_Mask) {}
+
+    /** Call this to post the widget's event to its listeners */
+    void    postWidgetEvent();
+
+    static void Init();
+    static void Term();
+protected:
+    // override to add slots to an event before posting
+    virtual void prepareWidgetEvent(SkEvent*);
+    virtual void onEnabledChange();
+
+    // <event ...> to initialize the event from XML
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    SkEvent fEvent;
+    typedef SkView INHERITED;
+};
+
+class SkHasLabelWidget : public SkWidget {
+public:
+    SkHasLabelWidget(uint32_t flags = 0) : SkWidget(flags) {}
+
+    size_t  getLabel(SkString* label = NULL) const;
+    size_t  getLabel(char lable[] = NULL) const;
+    void    setLabel(const SkString&);
+    void    setLabel(const char label[]);
+    void    setLabel(const char label[], size_t len);
+
+protected:
+    // called when the label changes
+    virtual void onLabelChange();
+
+    // overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    SkString    fLabel;
+    typedef SkWidget INHERITED;
+};
+
+class SkButtonWidget : public SkHasLabelWidget {
+public:
+    SkButtonWidget(uint32_t flags = 0) : SkHasLabelWidget(flags), fState(kOff_State) {}
+
+    enum State {
+        kOff_State,     //!< XML: buttonState="off"
+        kOn_State,      //!< XML: buttonState="on"
+        kUnknown_State  //!< XML: buttonState="unknown"
+    };
+    State   getButtonState() const { return fState; }
+    void    setButtonState(State);
+
+protected:
+    /** called when the label changes. default behavior is to inval the widget */
+    virtual void onButtonStateChange();
+
+    // overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    State   fState;
+    typedef SkHasLabelWidget INHERITED;
+};
+
+class SkPushButtonWidget : public SkButtonWidget {
+public:
+    SkPushButtonWidget(uint32_t flags = 0) : SkButtonWidget(flags) {}
+
+protected:
+    virtual bool onEvent(const SkEvent&);
+    virtual void onDraw(SkCanvas*);
+    virtual Click* onFindClickHandler(SkScalar x, SkScalar y);
+    virtual bool onClick(Click* click);
+
+private:
+    typedef SkButtonWidget INHERITED;
+};
+
+class SkCheckBoxWidget : public SkButtonWidget {
+public:
+    SkCheckBoxWidget(uint32_t flags = 0);
+
+protected:
+    virtual bool onEvent(const SkEvent&);
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    typedef SkButtonWidget INHERITED;
+};
+
+#include "SkTextBox.h"
+
+class SkStaticTextView : public SkView {
+public:
+            SkStaticTextView(uint32_t flags = 0);
+    virtual ~SkStaticTextView();
+
+    enum Mode {
+        kFixedSize_Mode,
+        kAutoWidth_Mode,
+        kAutoHeight_Mode,
+
+        kModeCount
+    };
+    Mode    getMode() const { return (Mode)fMode; }
+    void    setMode(Mode);
+
+    SkTextBox::SpacingAlign getSpacingAlign() const { return (SkTextBox::SpacingAlign)fSpacingAlign; }
+    void    setSpacingAlign(SkTextBox::SpacingAlign);
+
+    void    getMargin(SkPoint* margin) const;
+    void    setMargin(SkScalar dx, SkScalar dy);
+
+    size_t  getText(SkString* text = NULL) const;
+    size_t  getText(char text[] = NULL) const;
+    void    setText(const SkString&);
+    void    setText(const char text[]);
+    void    setText(const char text[], size_t len);
+
+    void    getPaint(SkPaint*) const;
+    void    setPaint(const SkPaint&);
+
+protected:
+    // overrides
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    SkPoint     fMargin;
+    SkString    fText;
+    SkPaint     fPaint;
+    uint8_t     fMode;
+    uint8_t     fSpacingAlign;
+
+    void computeSize();
+
+    typedef SkView INHERITED;
+};
+
+class SkBitmapView : public SkView {
+public:
+            SkBitmapView(uint32_t flags = 0);
+    virtual ~SkBitmapView();
+
+    bool    getBitmap(SkBitmap*) const;
+    void    setBitmap(const SkBitmap*, bool viewOwnsPixels);
+    bool    loadBitmapFromFile(const char path[]);
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM&, const SkDOM::Node*);
+
+private:
+    SkBitmap    fBitmap;
+    typedef SkView INHERITED;
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+class SkShader;
+class SkInterpolator;
+
+class SkWidgetView : public SkView {
+public:
+            SkWidgetView(uint32_t flags = 0);
+    virtual ~SkWidgetView();
+
+    static const char*  GetEventType();
+};
+
+class SkSliderView : public SkWidgetView {
+public:
+    SkSliderView(uint32_t flags = 0);
+
+    uint16_t    getValue() const { return fValue; }
+    uint16_t    getMax() const { return fMax; }
+
+    void    setMax(U16CPU max);
+    void    setValue(U16CPU value);
+
+protected:
+    virtual void    onDraw(SkCanvas*);
+    virtual Click*  onFindClickHandler(SkScalar x, SkScalar y);
+    virtual bool    onClick(Click*);
+
+private:
+    uint16_t fValue, fMax;
+
+    typedef SkWidgetView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+class SkHasLabelView : public SkView {
+public:
+    void    getLabel(SkString*) const;
+    void    setLabel(const SkString&);
+    void    setLabel(const char label[]);
+
+protected:
+    SkString    fLabel;
+
+    // called when the label changes
+    virtual void onLabelChange();
+
+    // overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+};
+
+class SkPushButtonView : public SkHasLabelView {
+public:
+    SkPushButtonView(uint32_t flags = 0);
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+};
+
+class SkCheckBoxView : public SkHasLabelView {
+public:
+    SkCheckBoxView(uint32_t flags = 0);
+
+    enum State {
+        kOff_State,
+        kOn_State,
+        kMaybe_State
+    };
+    State   getState() const { return fState; }
+    void    setState(State);
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    State   fState;
+};
+
+class SkProgressView : public SkView {
+public:
+    SkProgressView(uint32_t flags = 0);
+    virtual ~SkProgressView();
+
+    uint16_t    getValue() const { return fValue; }
+    uint16_t    getMax() const { return fMax; }
+
+    void    setMax(U16CPU max);
+    void    setValue(U16CPU value);
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    uint16_t    fValue, fMax;
+    SkShader*   fOnShader, *fOffShader;
+    SkInterpolator* fInterp;
+    bool fDoInterp;
+
+    typedef SkView INHERITED;
+};
+
+class SkTextView : public SkView {
+public:
+            SkTextView(uint32_t flags = 0);
+    virtual ~SkTextView();
+
+    enum AnimaDir {
+        kNeutral_AnimDir,
+        kForward_AnimDir,
+        kBackward_AnimDir,
+        kAnimDirCount
+    };
+
+    void    getText(SkString*) const;
+    void    setText(const SkString&, AnimaDir dir = kNeutral_AnimDir);
+    void    setText(const char text[], AnimaDir dir = kNeutral_AnimDir);
+    void    setText(const char text[], size_t len, AnimaDir dir = kNeutral_AnimDir);
+
+    void    getMargin(SkPoint* margin) const;
+    void    setMargin(const SkPoint&);
+
+    SkPaint&    paint() { return fPaint; }
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    SkString fText;
+    SkPaint  fPaint;
+    SkPoint  fMargin;
+
+    class Interp;
+    Interp* fInterp;
+    bool    fDoInterp;
+    // called by the other setText methods. This guy does not check for !=
+    // before doing the assign, so the caller must check for us
+    void privSetText(const SkString&, AnimaDir dir);
+
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////
+
+class SkEvent;
+
+class SkListSource : public SkEventSink {
+public:
+    virtual int countRows() = 0;
+    virtual void getRow(int index, SkString* left, SkString* right) = 0;
+    virtual SkEvent* getEvent(int index);
+
+    static SkListSource* CreateFromDir(const char path[], const char suffix[],
+                                        const char targetPrefix[]);
+    static SkListSource* CreateFromDOM(const SkDOM& dom, const SkDOM::Node* node);
+};
+
+class SkListView : public SkWidgetView {
+public:
+            SkListView(uint32_t flags = 0);
+    virtual ~SkListView();
+
+    SkScalar    getRowHeight() const { return fRowHeight; }
+    void        setRowHeight(SkScalar);
+
+    /** Return the index of the selected row, or -1 if none
+    */
+    int     getSelection() const { return fCurrIndex; }
+    /** Set the index of the selected row, or -1 for none
+    */
+    void    setSelection(int);
+
+    void    moveSelectionUp();
+    void    moveSelectionDown();
+
+    enum Attr {
+        kBG_Attr,
+        kNormalText_Attr,
+        kHiliteText_Attr,
+        kHiliteCell_Attr,
+        kAttrCount
+    };
+    SkPaint&    paint(Attr);
+
+    SkListSource*   getListSource() const { return fSource; }
+    SkListSource*   setListSource(SkListSource*);
+
+#if 0
+    enum Action {
+        kSelectionChange_Action,
+        kSelectionPicked_Action,
+        kActionCount
+    };
+    /** If event is not null, it is retained by the view, and a copy
+        of the event will be posted to its listeners when the specified
+        action occurs. If event is null, then no event will be posted for
+        the specified action.
+    */
+    void    setActionEvent(Action, SkEvent* event);
+#endif
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onSizeChange();
+    virtual bool onEvent(const SkEvent&);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    SkPaint         fPaint[kAttrCount];
+    SkListSource*   fSource;
+    SkScalar        fRowHeight;
+    int             fCurrIndex;     // logical index
+    int             fScrollIndex;   // logical index of top-most visible row
+    int             fVisibleRowCount;
+    SkString*       fStrCache;
+
+    void    dirtyStrCache();
+    void    ensureStrCache(int visibleCount);
+
+    int     logicalToVisualIndex(int index) const { return index - fScrollIndex; }
+    void    invalSelection();
+    bool    getRowRect(int index, SkRect*) const;
+    void    ensureSelectionIsVisible();
+
+    typedef SkWidgetView INHERITED;
+};
+
+//////////////////////////////////////////////////////////
+
+class SkGridView : public SkWidgetView {
+public:
+            SkGridView(uint32_t flags = 0);
+    virtual ~SkGridView();
+
+    void    getCellSize(SkPoint*) const;
+    void    setCellSize(SkScalar x, SkScalar y);
+
+    /** Return the index of the selected item, or -1 if none
+    */
+    int     getSelection() const { return fCurrIndex; }
+    /** Set the index of the selected row, or -1 for none
+    */
+    void    setSelection(int);
+
+    void    moveSelectionUp();
+    void    moveSelectionDown();
+
+    enum Attr {
+        kBG_Attr,
+        kHiliteCell_Attr,
+        kAttrCount
+    };
+    SkPaint&    paint(Attr);
+
+    SkListSource*   getListSource() const { return fSource; }
+    SkListSource*   setListSource(SkListSource*);
+
+protected:
+    virtual void onDraw(SkCanvas*);
+    virtual void onSizeChange();
+    virtual bool onEvent(const SkEvent&);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+
+private:
+    SkView*         fScrollBar;
+    SkPaint         fPaint[kAttrCount];
+    SkListSource*   fSource;
+    int             fCurrIndex;     // logical index
+
+    SkPoint         fCellSize;
+    SkIPoint        fVisibleCount;
+
+    int     logicalToVisualIndex(int index) const { return index; }
+    void    invalSelection();
+    bool    getCellRect(int index, SkRect*) const;
+    void    ensureSelectionIsVisible();
+
+    typedef SkWidgetView INHERITED;
+};
+
+#endif
+
diff --git a/include/views/SkWidgetViews.h b/include/views/SkWidgetViews.h
new file mode 100644
index 0000000000..4dd88669f8
--- /dev/null
+++ b/include/views/SkWidgetViews.h
@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkWidgetViews_DEFINED
+#define SkWidgetViews_DEFINED
+
+#include "SkView.h"
+
+
+enum SkWidgetEnum {
+    kBorder_WidgetEnum,         //!< <sk-border>
+    kButton_WidgetEnum,         //!< <sk-button>
+    kImage_WidgetEnum,          //!< <sk-image>
+    kList_WidgetEnum,           //!< <sk-list>
+    kProgress_WidgetEnum,       //!< <sk-progress>
+    kScroll_WidgetEnum,         //!< <sk-scroll>
+    kText_WidgetEnum,           //!< <sk-text>
+    
+    kWidgetEnumCount
+};
+
+//determines which skin to use
+enum SkinEnum {
+    kBorder_SkinEnum,
+    kButton_SkinEnum,
+    kProgress_SkinEnum,
+    kScroll_SkinEnum,
+    kStaticText_SkinEnum,
+    
+    kSkinEnumCount
+};
+
+#include "SkAnimator.h"
+//used for inflates
+const char* get_skin_enum_path(SkinEnum se);
+void init_skin_anim(const char path[], SkAnimator* anim);
+void init_skin_anim(SkinEnum se, SkAnimator* anim);
+void init_skin_paint(SkinEnum se, SkPaint* paint);
+void inflate_paint(const SkDOM& dom, const SkDOM::Node* node, SkPaint* paint);
+
+/** Given an enum value, return an instance of the specified widget.
+    If the enum is out of range, returns null
+*/
+SkView* SkWidgetFactory(SkWidgetEnum);
+/** Given the inflate/element name of a widget, return an instance of
+    the specified widget, or null if name does not match any known
+    widget type.
+*/
+SkView* SkWidgetFactory(const char name[]);
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SkWidgetView : public SkView {
+public:
+    SkWidgetView();
+
+    const char* getLabel() const;
+    void        getLabel(SkString* label) const;
+
+    void        setLabel(const char[]);
+    void        setLabel(const char[], size_t len);
+    void        setLabel(const SkString&);
+
+    SkEvent&        event() { return fEvent; }
+    const SkEvent&  event() const { return fEvent; }
+
+    /** Returns true if the widget can post its event to its listeners.
+    */
+    bool    postWidgetEvent();
+    
+    /** Returns the sinkID of the widgetview that posted the event, or 0
+    */
+    static SkEventSinkID GetWidgetEventSinkID(const SkEvent&);
+
+protected:
+    /** called when the label changes. override in subclasses. default action invals the view's bounds.
+        called with the old and new labels, before the label has actually changed.
+    */
+    virtual void onLabelChange(const char oldLabel[], const char newLabel[]);
+    /** called before posting the event to our listeners. Override to add slots to the event
+        before posting. Return true to proceed with posting, or false to not post the event to any
+        listener. Note: the event passed in may not be the same as calling this->event().
+        Be sure to call your INHERITED method as well, so that all classes in the hierarchy get a shot
+        at modifying the event (and possibly returning false to abort).
+    */
+    virtual bool onPrepareWidgetEvent(SkEvent* evt);
+
+    // overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+    
+private:
+    SkString    fLabel;
+    SkEvent     fEvent;
+    
+    typedef SkView INHERITED;
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SkButtonView : public SkWidgetView {
+public:
+    // inflate: "sk-button"
+    
+protected:
+    // overrides
+    virtual bool onEvent(const SkEvent&);
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SkCheckButtonView : public SkWidgetView {
+public:
+    SkCheckButtonView();
+
+    // inflate: "sk-checkbutton"
+    
+    enum CheckState {
+        kOff_CheckState,        //!< inflate: check-state="off"
+        kOn_CheckState,         //!< inflate: check-state="on"
+        kUnknown_CheckState     //!< inflate: check-state="unknown"
+    };
+    CheckState  getCheckState() const { return (CheckState)fCheckState; }
+    void        setCheckState(CheckState);
+
+    /** use this to extract the CheckState from an event (i.e. one that as posted
+        by a SkCheckButtonView). Returns true if the proper slot was present in the event,
+        and sets state to that value. If no proper slot is found, returns false and does not
+        modify state.
+    */
+    static bool GetWidgetEventCheckState(const SkEvent&, CheckState* state);
+
+protected:
+    // called when the check-state is about to change, but before it actually has
+    virtual void onCheckStateChange(CheckState oldState, CheckState newState);
+
+    // overrides
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+    virtual bool onPrepareWidgetEvent(SkEvent* evt);
+    
+private:
+    uint8_t  fCheckState;
+    
+    typedef SkWidgetView INHERITED;
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+#include "SkTextBox.h"
+
+class SkStaticTextView : public SkView {
+public:
+            SkStaticTextView();
+    virtual ~SkStaticTextView();
+
+    enum Mode {
+        kFixedSize_Mode,
+        kAutoWidth_Mode,
+        kAutoHeight_Mode,
+
+        kModeCount
+    };
+    Mode    getMode() const { return (Mode)fMode; }
+    void    setMode(Mode);
+
+    SkTextBox::SpacingAlign getSpacingAlign() const { return (SkTextBox::SpacingAlign)fSpacingAlign; }
+    void    setSpacingAlign(SkTextBox::SpacingAlign);
+
+    void    getMargin(SkPoint* margin) const;
+    void    setMargin(SkScalar dx, SkScalar dy);
+
+    size_t  getText(SkString* text = NULL) const;
+    size_t  getText(char text[] = NULL) const;
+    void    setText(const SkString&);
+    void    setText(const char text[]);
+    void    setText(const char text[], size_t len);
+
+    void    getPaint(SkPaint*) const;
+    void    setPaint(const SkPaint&);
+
+protected:
+    // overrides
+    virtual void onDraw(SkCanvas*);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node*);
+
+private:
+    SkPoint     fMargin;
+    SkString    fText;
+    SkPaint     fPaint;
+    uint8_t     fMode;
+    uint8_t     fSpacingAlign;
+
+    void computeSize();
+
+    typedef SkView INHERITED;
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SkAnimator;
+class SkListSource;
+class SkScrollBarView;
+
+class SkListView : public SkWidgetView {
+public:
+            SkListView();
+    virtual ~SkListView();
+
+    bool    hasScrollBar() const { return fScrollBar != NULL; }
+    void    setHasScrollBar(bool);
+    
+    /** Return the number of visible rows
+    */
+    int     getVisibleRowCount() const { return fVisibleRowCount; }
+    /** Return the index of the selected row, or -1 if none
+    */
+    int     getSelection() const { return fCurrIndex; }
+    /** Set the index of the selected row, or -1 for none
+    */
+    void    setSelection(int);
+    /** If possible, move the selection up and return true,
+        else do nothing and return false
+        If nothing is selected, select the last item (unless there are no items).
+    */
+    bool    moveSelectionUp();
+    /** If possible, move the selection down and return true,
+        else do nothing and return false.
+        If nothing is selected, select the first item (unless there are no items).
+    */
+    bool    moveSelectionDown();
+
+    SkListSource*   getListSource() const { return fSource; }
+    SkListSource*   setListSource(SkListSource*);
+
+    /** Call this in your event handler. If the specified event is from a SkListView,
+        then it returns the index of the selected item in this list, otherwise it
+        returns -1
+    */
+    static int GetWidgetEventListIndex(const SkEvent&);
+
+protected:
+    // overrides
+    virtual void onDraw(SkCanvas*);
+    virtual void onSizeChange();
+    virtual bool onEvent(const SkEvent&);
+    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
+    virtual bool onPrepareWidgetEvent(SkEvent*);
+
+private:
+    enum DirtyFlags {
+        kAnimCount_DirtyFlag    = 0x01,
+        kAnimContent_DirtyFlag  = 0x02
+    };
+    void    dirtyCache(unsigned dirtyFlags);
+    bool    ensureCache();
+
+    int     logicalToVisualIndex(int index) const { return index - fScrollIndex; }
+    void    invalSelection();
+    SkScalar getContentWidth() const;
+    bool    getRowRect(int index, SkRect*) const;
+    void    ensureSelectionIsVisible();
+    void    ensureVisibleRowCount();
+
+    struct BindingRec;
+
+    enum Heights {
+        kNormal_Height,
+        kSelected_Height
+    };
+    SkListSource*   fSource;
+    SkScrollBarView*    fScrollBar;
+    SkAnimator*     fAnims;
+    BindingRec*     fBindings;
+    SkString        fSkinName;
+    SkScalar        fHeights[2];
+    int16_t         fScrollIndex, fCurrIndex;
+    uint16_t        fVisibleRowCount, fBindingCount;
+    SkBool8         fAnimContentDirty;
+    SkBool8         fAnimFocusDirty;
+
+    typedef SkWidgetView INHERITED;
+};
+
+class SkListSource : public SkRefCnt {
+public:
+    virtual int countFields();
+    virtual void getFieldName(int index, SkString* field);
+    /** Return the index of the named field, or -1 if not found */
+    virtual int findFieldIndex(const char field[]);
+
+    virtual int countRecords();
+    virtual void getRecord(int rowIndex, int fieldIndex, SkString* data);
+
+    virtual bool prepareWidgetEvent(SkEvent*, int rowIndex);
+    
+    static SkListSource* Factory(const char name[]);
+};
+
+#endif
diff --git a/include/views/SkWindow.h b/include/views/SkWindow.h
new file mode 100644
index 0000000000..96262eecf1
--- /dev/null
+++ b/include/views/SkWindow.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkWindow_DEFINED
+#define SkWindow_DEFINED
+
+#include "SkView.h"
+#include "SkBitmap.h"
+#include "SkRegion.h"
+#include "SkEvent.h"
+#include "SkKey.h"
+#include "SkTDArray.h"
+
+#ifdef SK_BUILD_FOR_WINCEx
+    #define SHOW_FPS
+#endif
+//#define USE_GX_SCREEN
+
+class SkOSMenu;
+
+class SkWindow : public SkView {
+public:
+            SkWindow();
+    virtual ~SkWindow();
+
+    const SkBitmap& getBitmap() const { return fBitmap; }
+
+    void    setConfig(SkBitmap::Config);
+    void    resize(int width, int height, SkBitmap::Config config = SkBitmap::kNo_Config);
+    void    eraseARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b);
+    void    eraseRGB(U8CPU r, U8CPU g, U8CPU b);
+
+    bool    isDirty() const { return !fDirtyRgn.isEmpty(); }
+    bool    update(SkIRect* updateArea);
+    bool    handleClick(int x, int y, Click::State);
+    bool    handleChar(SkUnichar);
+    bool    handleKey(SkKey);
+    bool    handleKeyUp(SkKey);
+    bool    handleMenu(uint32_t os_cmd);
+
+    void    addMenu(SkOSMenu*);
+    void    setTitle(const char title[]);
+
+protected:
+    virtual bool onEvent(const SkEvent&);
+
+    // called if part of our bitmap is invalidated
+    virtual void onHandleInval(const SkIRect&);
+    virtual bool onHandleChar(SkUnichar);
+    virtual bool onHandleKey(SkKey);
+    virtual bool onHandleKeyUp(SkKey);
+    virtual void onAddMenu(const SkOSMenu*) {}
+    virtual void onSetTitle(const char title[]) {}
+
+    // overrides from SkView
+    virtual bool handleInval(const SkRect&);
+    virtual bool onGetFocusView(SkView** focus) const;
+    virtual bool onSetFocusView(SkView* focus);
+
+private:
+    SkBitmap::Config    fConfig;
+    SkBitmap    fBitmap;
+    SkRegion    fDirtyRgn;
+    Click*      fClick; // to track clicks
+
+    SkTDArray<SkOSMenu*>    fMenus;
+
+    SkView* fFocusView;
+    bool    fWaitingOnInval;
+
+    typedef SkView INHERITED;
+};
+
+///////////////////////////////////////////////////////////
+
+#ifndef SK_USE_WXWIDGETS
+#ifdef SK_BUILD_FOR_MAC
+    #include "SkOSWindow_Mac.h"
+#elif defined(SK_BUILD_FOR_WIN)
+    #include "SkOSWindow_Win.h"
+#elif defined(SK_BUILD_FOR_UNIXx)
+  #include "SkOSWindow_Unix.h"
+#endif
+#else
+  #include "SkOSWindow_wxwidgets.h"
+#endif
+
+#endif
+