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Implement SkiaSurface::drawString/Char/ColoredRgbaSurface with a skColorFilter

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This commit is contained in:
David Capello 2015-05-22 11:05:13 -03:00
parent bb7d629471
commit 02f8fd7920
1 changed files with 52 additions and 3 deletions
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55
src/she/skia/skia_surface.h
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@ -8,12 +8,15 @@
#define SHE_SKIA_SKIA_SURFACE_INCLUDED
#pragma once
#include "she/common/locked_surface.h"
#include "base/unique_ptr.h"
#include "gfx/clip.h"
#include "she/common/font.h"
#include "she/locked_surface.h"
#include "she/scoped_surface_lock.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkImageInfo.h"
#include "SkRegion.h"
@ -29,7 +32,7 @@ inline SkRect to_skia(const gfx::Rect& rc) {
}
class SkiaSurface : public NonDisposableSurface
, public CommonLockedSurface {
, public LockedSurface {
public:
SkiaSurface() {
}
@ -291,6 +294,52 @@ public:
((SkiaSurface*)src)->m_bitmap, &srcRect, dstRect, &paint);
}
void drawColoredRgbaSurface(const LockedSurface* src, gfx::Color fg, gfx::Color bg, const gfx::Clip& clipbase) override {
gfx::Clip clip(clipbase);
if (!clip.clip(lockedWidth(), lockedHeight(), src->lockedWidth(), src->lockedHeight()))
return;
SkRect srcRect = SkRect::Make(SkIRect::MakeXYWH(clip.src.x, clip.src.y, clip.size.w, clip.size.h));
SkRect dstRect = SkRect::Make(SkIRect::MakeXYWH(clip.dst.x, clip.dst.y, clip.size.w, clip.size.h));
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
if (gfx::geta(bg) > 0) {
SkPaint paint;
paint.setColor(to_skia(bg));
paint.setStyle(SkPaint::kFill_Style);
m_canvas->drawRect(dstRect, paint);
}
SkAutoTUnref<SkColorFilter> colorFilter(
SkColorFilter::CreateModeFilter(to_skia(fg), SkXfermode::kSrcIn_Mode));
paint.setColorFilter(colorFilter);
m_canvas->drawBitmapRectToRect(
((SkiaSurface*)src)->m_bitmap,
&srcRect, dstRect, &paint);
}
void drawChar(Font* font, gfx::Color fg, gfx::Color bg, int x, int y, int chr) override {
CommonFont* commonFont = static_cast<CommonFont*>(font);
gfx::Rect charBounds = commonFont->getCharBounds(chr);
if (!charBounds.isEmpty()) {
ScopedSurfaceLock lock(commonFont->getSurfaceSheet());
drawColoredRgbaSurface(lock, fg, bg, gfx::Clip(x, y, charBounds));
}
}
void drawString(Font* font, gfx::Color fg, gfx::Color bg, int x, int y, const std::string& str) override {
base::utf8_const_iterator it(str.begin()), end(str.end());
while (it != end) {
drawChar(font, fg, bg, x, y, *it);
x += font->charWidth(*it);
++it;
}
}
SkBitmap& bitmap() {
return m_bitmap;
}