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#include "SampleCode.h"
#include "SkView.h"
#include "SkBlurMaskFilter.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkPath.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUtils.h"
#include "SkXfermode.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"
#include "SkTextBox.h"
#include "SkOSFile.h"
#include "SkStream.h"
#include "SkKey.h"
static const char gText[] =
"When in the Course of human events it becomes necessary for one people "
"to dissolve the political bands which have connected them with another "
"and to assume among the powers of the earth, the separate and equal "
"station to which the Laws of Nature and of Nature's God entitle them, "
"a decent respect to the opinions of mankind requires that they should "
"declare the causes which impel them to the separation.";
class TextBoxView : public SkView {
public:
TextBoxView() {
fTextSize = SkIntToScalar(32);
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SkString str("TextBox");
SampleCode::TitleR(evt, str.c_str());
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(SK_ColorWHITE);
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
SkScalar margin = 20;
SkTextBox tbox;
tbox.setMode(SkTextBox::kLineBreak_Mode);
tbox.setBox(margin, margin,
this->width() - margin, this->height() - margin);
tbox.setSpacing(SkIntToScalar(3)/3, 0);
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(fTextSize);
tbox.draw(canvas, gText, strlen(gText), paint);
}
virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
return new Click(this);
}
virtual bool onClick(Click* click) {
const SkScalar delta = SkIntToScalar(3);
if (click->fState == Click::kUp_State) {
if (click->fCurr.fY < this->height()/2) {
fTextSize += delta;
this->inval(NULL);
return true;
} else {
if (fTextSize > delta) {
fTextSize -= delta;
this->inval(NULL);
return true;
}
}
}
return this->INHERITED::onClick(click);
}
private:
SkScalar fTextSize;
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new TextBoxView; }
static SkViewRegister reg(MyFactory);
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