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add DEBUG_LAYER_BOUNDS option to show layer bounds

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git-svn-id: http://skia.googlecode.com/svn/trunk@509 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@android.com 2010-02-24 02:01:23 +00:00
parent 233481ebd0
commit 2bd703b316
2 changed files with 35 additions and 6 deletions
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21
samplecode/SampleSkLayer.cpp
View File

@ -32,8 +32,8 @@ private:
public:
SkLayerView() {
static const int W = 640;
static const int H = 480;
static const int W = 600;
static const int H = 440;
static const struct {
int fWidth;
int fHeight;
@ -47,7 +47,7 @@ public:
{ 120, 80, SK_ColorMAGENTA, W - 120, H - 80 },
};
fRootLayer = new SkLayer;
fRootLayer = new TestLayer(0xFFDDDDDD);
fRootLayer->setSize(W, H);
for (size_t i = 0; i < SK_ARRAY_COUNT(gData); i++) {
SkLayer* child = new TestLayer(gData[i].fColor);
@ -55,6 +55,18 @@ public:
child->setPosition(gData[i].fPosX, gData[i].fPosY);
fRootLayer->addChild(child)->unref();
}
SkLayer* child = new TestLayer(0xFFDD8844);
child->setSize(120, 80);
child->setPosition(fRootLayer->getWidth()/2 - child->getWidth()/2,
fRootLayer->getHeight()/2 - child->getHeight()/2);
child->setAnchorPoint(SK_ScalarHalf, SK_ScalarHalf);
{
SkMatrix m;
m.setRotate(SkIntToScalar(30));
child->setMatrix(m);
}
fRootLayer->addChild(child)->unref();
}
virtual ~SkLayerView() {
@ -72,8 +84,9 @@ protected:
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(0xFFDDDDDD);
canvas->drawColor(SK_ColorWHITE);
canvas->translate(20, 20);
fRootLayer->draw(canvas);
}

20
src/utils/SkLayer.cpp
View File

@ -1,11 +1,13 @@
#include "SkLayer.h"
#include "SkCanvas.h"
//#define DEBUG_LAYER_BOUNDS
SkLayer::SkLayer() {
m_opacity = 1;
m_opacity = SK_Scalar1;
m_size.set(0, 0);
m_position.set(0, 0);
m_anchorPoint.set(0.5, 0.5);
m_anchorPoint.set(SK_ScalarHalf, SK_ScalarHalf);
fMatrix.reset();
fChildrenMatrix.reset();
@ -102,6 +104,20 @@ void SkLayer::draw(SkCanvas* canvas, SkScalar opacity) {
this->onDraw(canvas, opacity);
#ifdef DEBUG_LAYER_BOUNDS
{
SkRect r = SkRect::MakeSize(this->getSize());
SkPaint p;
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(2));
p.setColor(0xFFFF44DD);
canvas->drawRect(r, p);
canvas->drawLine(r.fLeft, r.fTop, r.fRight, r.fBottom, p);
canvas->drawLine(r.fLeft, r.fBottom, r.fRight, r.fTop, p);
}
#endif
int count = this->countChildren();
if (count > 0) {
canvas->concat(this->getChildrenMatrix());