clipdrawdraw.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRegion.h"

Go to the source code of this file.

Functions
static void	Draw (SkCanvas *canvas, const SkRect &rect)
	DEF_SIMPLE_GM_BG (clipdrawdraw, canvas, 512, 512, 0xFFCCCCCC)
	DEF_SIMPLE_GM (clip_region, canvas, 256, 256)

Function Documentation

DEF_SIMPLE_GM()

DEF_SIMPLE_GM	(	clip_region	,
		canvas	,
		256	,
		256
	)

Definition at line 57 of file clipdrawdraw.cpp.

                                             {
    SkRegion rgn({ 10, 10, 100, 100 });
 
    canvas->save();
    canvas->clipRegion(rgn);
    canvas->drawColor(SK_ColorRED);
    canvas->restore();
 
    SkRect bounds = { 30, 30, 80, 80 };
    canvas->saveLayer(&bounds, nullptr);
    canvas->clipRegion(rgn);
    canvas->drawColor(SK_ColorBLUE);
    canvas->restore();
}

DEF_SIMPLE_GM_BG()

DEF_SIMPLE_GM_BG	(	clipdrawdraw	,
		canvas	,
		512	,
		512	,
		0xFFCCCCCC
	)

Definition at line 43 of file clipdrawdraw.cpp.

                                                             {
        // Vertical remnant
        const SkRect rect1 = SkRect::MakeLTRB(136.5f, 137.5f, 338.5f, 293.5f);
 
        // Horizontal remnant
        // 179.488 rounds the right way (i.e., 179), 179.499 rounds the wrong way (i.e., 180)
        const SkRect rect2 = SkRect::MakeLTRB(207.5f, 179.499f, 530.5f, 429.5f);
 
        Draw(canvas, rect1);
        Draw(canvas, rect2);
}

Draw()

static void Draw ( SkCanvas *  canvas, const SkRect &  rect  )

static

Definition at line 24 of file clipdrawdraw.cpp.

                                                       {
        SkPaint p;
        p.setAntiAlias(false);
 
        const SkRect bigRect = SkRect::MakeWH(600, 600);
 
        canvas->save();
            // draw a black rect through the clip
            canvas->save();
                canvas->clipRect(rect);
                canvas->drawRect(bigRect, p);
            canvas->restore();
 
            // now draw the white rect on top
            p.setColor(SK_ColorWHITE);
            canvas->drawRect(rect, p);
        canvas->restore();
}