void HelloWorldWindow::drawContents(SkCanvas* canvas) {
// Clear background
canvas->drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setColor(SK_ColorRED);
// Draw a rectangle with red paint
SkRect rect = {
10, 10,
128, 128
};
canvas->drawRect(rect, paint);
// Set up a linear gradient and draw a circle
{
SkPoint linearPoints[] = {
{0, 0},
{300, 300}
};
SkColor linearColors[] = {SK_ColorGREEN, SK_ColorBLACK};
SkShader* shader = SkGradientShader::CreateLinear(
linearPoints, linearColors, NULL, 2,
SkShader::kMirror_TileMode);
SkAutoUnref shader_deleter(shader);
paint.setShader(shader);
paint.setFlags(SkPaint::kAntiAlias_Flag);
canvas->drawCircle(200, 200, 64, paint);
// Detach shader
paint.setShader(NULL);
}
// Draw a message with a nice black paint.
paint.setFlags(
SkPaint::kAntiAlias_Flag |
SkPaint::kSubpixelText_Flag | // ... avoid waggly text when rotating.
SkPaint::kUnderlineText_Flag);
paint.setColor(SK_ColorBLACK);
paint.setTextSize(20);
canvas->save();
static const char message[] = "Hello World";
// Translate and rotate
canvas->translate(300, 300);
fRotationAngle += 0.2f;
if (fRotationAngle > 360) {
fRotationAngle -= 360;
}
canvas->rotate(fRotationAngle);
// Draw the text:
canvas->drawText(message, strlen(message), 0, 0, paint);
canvas->restore();
}
static void drawInBitmap(SkBitmap &bitmap)
{
SkCanvas canvas(bitmap);
canvas.clear(SK_ColorWHITE);
SkPaint myPaint;
myPaint.setAntiAlias(true);
myPaint.setColor(SK_ColorBLACK);
myPaint.setStrokeWidth(SkIntToScalar(1));
canvas.translate(SkIntToScalar(36), SkIntToScalar(36));
canvas.scale(SkIntToScalar(1), SkIntToScalar(-1));
canvas.scale(SkDoubleToScalar(0.17), SkDoubleToScalar(0.17));
{
SkPoint linearPoints[] = {
{SkIntToScalar(-58), SkIntToScalar(13)},
{SkIntToScalar(-58+(116/2)), SkIntToScalar(13)}
};
SkColor linearColors[] = {SK_ColorBLACK, SK_ColorLTGRAY};
SkShader* shader = SkGradientShader::CreateLinear(
linearPoints, linearColors, NULL, 2,
SkShader::kMirror_TileMode);
SkAutoUnref shader_deleter(shader);
myPaint.setShader(shader);
myPaint.setFlags(SkPaint::kAntiAlias_Flag);
SkRect rect0;
rect0.setXYWH(SkIntToScalar(-58), SkIntToScalar(13), SkIntToScalar(116), SkIntToScalar(76));
canvas.drawRect(rect0,myPaint);
// Detach shader
myPaint.setShader(NULL);
}
myPaint.setColor(SK_ColorBLACK);
myPaint.setStyle(SkPaint::kStrokeAndFill_Style);
SkRect rect;
rect.setXYWH(SkIntToScalar(-60), SkIntToScalar(75), SkIntToScalar(120), SkIntToScalar(6));
canvas.drawRect(rect, myPaint);
SkRect rect1;
rect1.setXYWH(SkIntToScalar(-60), SkIntToScalar(61), SkIntToScalar(120), SkIntToScalar(6));
canvas.drawRect(rect1, myPaint);
SkRect rect2;
rect2.setXYWH(SkIntToScalar(-60), SkIntToScalar(49), SkIntToScalar(120), SkIntToScalar(6));
canvas.drawRect(rect2, myPaint);
SkPoint pts0[] = {
{-60,11},
{-42,23},
{38,23},
{56,11},
{-60,11}
};
myPaint.setColor(SK_ColorBLUE);
myPaint.setStyle(SkPaint::kStroke_Style);
SkPath path0;
path0.addPoly(pts0, 5, true);
canvas.drawPath(path0, myPaint);
path0.addPoly(pts0, 5, true);
myPaint.setColor(SK_ColorWHITE);
myPaint.setStyle(SkPaint::kFill_Style);
canvas.drawPath(path0, myPaint);
myPaint.setColor(SK_ColorBLACK);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawLine(SkIntToScalar(-100), SkIntToScalar(-90), SkIntToScalar(100), SkIntToScalar(-91), myPaint);
canvas.drawLine(SkIntToScalar(0), SkIntToScalar(-90), SkIntToScalar(26), SkIntToScalar(-58), myPaint);
canvas.drawLine(SkIntToScalar(26), SkIntToScalar(-58), SkIntToScalar(-2), SkIntToScalar(37), myPaint);
myPaint.setStyle(SkPaint::kStrokeAndFill_Style);
canvas.drawCircle(SkIntToScalar(0), SkIntToScalar(33), SkIntToScalar(4), myPaint);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawCircle(SkDoubleToScalar(0), SkDoubleToScalar(-(129+49)/2), SkIntToScalar(40), myPaint);
myPaint.setColor(SK_ColorLTGRAY);
myPaint.setStyle(SkPaint::kStrokeAndFill_Style);
SkPoint pts[9];
pts[0].set(-60, -50);
pts[1].set(-60, 100);
pts[2].set( 60, 100);
pts[3].set(60, -52);
pts[4].set(100, -52);
pts[5].set(100, 150);
pts[6].set(-100, 150);
pts[7].set(-100, -50);
pts[8].set(-60, -50);
SkPath path;
path.addPoly(pts, 9, false);
canvas.drawPath(path, myPaint);
myPaint.setColor(SK_ColorBLACK);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawPath(path, myPaint);
SkRect inrect;
inrect.setXYWH(SkIntToScalar(-105), SkIntToScalar(100), SkIntToScalar(15), SkIntToScalar(45));
myPaint.setColor(SK_ColorLTGRAY);
myPaint.setStyle(SkPaint::kFill_Style);
canvas.drawRect(inrect, myPaint);
myPaint.setColor(SK_ColorGRAY);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawRect(inrect, myPaint);
SkRect inrect1;
inrect1.setXYWH(SkIntToScalar(90), SkIntToScalar(100), SkIntToScalar(15), SkIntToScalar(45));
myPaint.setColor(SK_ColorLTGRAY);
myPaint.setStyle(SkPaint::kFill_Style);
canvas.drawRect(inrect1, myPaint);
myPaint.setColor(SK_ColorGRAY);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawRect(inrect1, myPaint);
SkRect inrect2;
inrect2.setXYWH(SkIntToScalar(-105), SkIntToScalar(-115), SkIntToScalar(15), SkIntToScalar(45));
myPaint.setColor(SK_ColorLTGRAY);
myPaint.setStyle(SkPaint::kFill_Style);
canvas.drawRect(inrect2, myPaint);
myPaint.setColor(SK_ColorGRAY);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawRect(inrect2, myPaint);
SkRect inrect3;
inrect3.setXYWH(SkIntToScalar(90), SkIntToScalar(-115), SkIntToScalar(15), SkIntToScalar(45));
myPaint.setColor(SK_ColorLTGRAY);
myPaint.setStyle(SkPaint::kFill_Style);
canvas.drawRect(inrect3, myPaint);
myPaint.setColor(SK_ColorGRAY);
myPaint.setStyle(SkPaint::kStroke_Style);
canvas.drawRect(inrect3, myPaint);
}
