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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKCANVASWIDGET_H_
#define SKCANVASWIDGET_H_
#include <QWidget>
#include <QHBoxLayout>
#include "SkStream.h"
#include "SkRasterWidget.h"
#include "SkGLWidget.h"
class SkCanvasWidget : public QWidget {
Q_OBJECT
public:
SkCanvasWidget(QWidget* parent);
~SkCanvasWidget() {}
enum WidgetType {
kRaster_8888_WidgetType = 1 << 0,
kGPU_WidgetType = 1 << 1,
};
/**
Returns the visibility of the command at the specified index.
@param index The index of the draw command
*/
bool commandIsVisibleAtIndex(int index) {
return fDebugCanvas->getDrawCommandVisibilityAt(index);
}
/**
Toggles the visibility / execution of the draw command at index i with
the value of toggle.
*/
void setCommandVisibliltyAtIndex(int index, bool toggle) {
fDebugCanvas->toggleCommand(index, toggle);
}
/**
Returns a vector of strings with all the current canvas draw
commands.
*/
std::vector<std::string>* getDrawCommands() {
return fDebugCanvas->getDrawCommandsAsStrings();
}
SkDebugCanvas* getCurrentDebugCanvas() {
return fDebugCanvas;
}
void drawTo(int index);
void setWidgetVisibility(WidgetType type, bool isHidden);
/**
Toggles drawing filter on all drawing commands previous to current.
*/
void toggleCurrentCommandFilter(bool toggle) {
fDebugCanvas->toggleFilter(toggle);
}
/**
TODO(chudy): Refactor into a struct of char**
Returns parameter information about the ith draw command.
@param: i The index of the draw command we are accessing
*/
std::vector<std::string>* getCurrentCommandInfo(int i) {
return fDebugCanvas->getCommandInfoAt(i);
}
const SkMatrix& getCurrentMatrix() {
return fRasterWidget.getCurrentMatrix();
}
const SkIRect& getCurrentClip() {
return fRasterWidget.getCurrentClip();
}
void loadPicture(QString filename);
// TODO(chudy): Not full proof since fRasterWidget isn't always drawn to.
int getBitmapHeight() {
return fRasterWidget.getBitmapHeight();
}
int getBitmapWidth() {
return fRasterWidget.getBitmapWidth();
}
SkRasterWidget* getRasterWidget() {
return &fRasterWidget;
}
void zoom(float zoomIncrement);
signals:
void scaleFactorChanged(float newScaleFactor);
void commandChanged(int newCommand);
void hitChanged(int hit);
private slots:
void keyZoom(int zoomIncrement) {
zoom(zoomIncrement);
}
private:
QHBoxLayout fHorizontalLayout;
SkRasterWidget fRasterWidget;
SkGLWidget fGLWidget;
SkDebugCanvas* fDebugCanvas;
SkIPoint fPreviousPoint;
SkIPoint fTransform;
float fScaleFactor;
int fIndex;
enum TransformType {
kTranslate = 1 << 0,
kScale = 1 << 1,
};
void resetWidgetTransform();
void updateWidgetTransform(TransformType type);
void mouseMoveEvent(QMouseEvent* event);
void mousePressEvent(QMouseEvent* event);
void mouseDoubleClickEvent(QMouseEvent* event);
void wheelEvent(QWheelEvent* event) {
zoom(event->delta()/120);
}
};
#endif /* SKCANVASWIDGET_H_ */
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