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authorGravatar Jim Van Verth <jvanverth@google.com>2018-03-02 10:41:43 -0500
committerGravatar Skia Commit-Bot <skia-commit-bot@chromium.org>2018-03-02 16:03:20 +0000
commit080a928a249115ec425771dd055682edf74d5258 (patch)
treef90fb3234de2e92d0251960abba0957e2b9e9251 /gm
parente28f9c65f614b605afdfb17d345d386b35f3f3b1 (diff)
Various fixes for scaled emojis
Bug: skia:7562 Change-Id: I66cf290ca4541ceae7ee1009a1524046a2c5893e Reviewed-on: https://skia-review.googlesource.com/111481 Commit-Queue: Jim Van Verth <jvanverth@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
Diffstat (limited to 'gm')
-rw-r--r--gm/scaledemoji.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/gm/scaledemoji.cpp b/gm/scaledemoji.cpp
index c4a4c34499..ac8b3c6d51 100644
--- a/gm/scaledemoji.cpp
+++ b/gm/scaledemoji.cpp
@@ -61,11 +61,75 @@ protected:
}
+private:
+ typedef GM INHERITED;
+};
+
+class ScaledEmojiPosGM : public GM {
+public:
+ ScaledEmojiPosGM() {}
+
+protected:
+ struct EmojiFont {
+ sk_sp<SkTypeface> fTypeface;
+ const char* fText;
+ } fEmojiFont;
+
+ void onOnceBeforeDraw() override {
+ fEmojiFont.fTypeface = sk_tool_utils::emoji_typeface();
+ fEmojiFont.fText = sk_tool_utils::emoji_sample_text();
+ }
+
+ SkString onShortName() override {
+ SkString name("scaledemojipos");
+ name.append(sk_tool_utils::platform_font_manager());
+ return name;
+ }
+
+ SkISize onISize() override { return SkISize::Make(1200, 1200); }
+
+ void onDraw(SkCanvas* canvas) override {
+
+ canvas->drawColor(sk_tool_utils::color_to_565(SK_ColorGRAY));
+
+ SkPaint paint;
+ paint.setTypeface(fEmojiFont.fTypeface);
+ const char* text = fEmojiFont.fText;
+
+ // draw text at different point sizes
+ // Testing GPU bitmap path, SDF path with no scaling,
+ // SDF path with scaling, path rendering with scaling
+ SkPaint::FontMetrics metrics;
+ SkScalar y = 0;
+ for (SkScalar textSize : { 70, 180, 270, 340 }) {
+ paint.setTextSize(textSize);
+ paint.getFontMetrics(&metrics);
+ y += -metrics.fAscent;
+
+ int len = SkToInt(strlen(text));
+ SkAutoTArray<SkPoint> pos(len);
+ SkAutoTArray<SkScalar> widths(len);
+ paint.getTextWidths(text, len, &widths[0]);
+
+ SkScalar x = SkIntToScalar(10);
+ for (int i = 0; i < len; ++i) {
+ pos[i].set(x, y);
+ x += widths[i];
+ }
+
+ canvas->drawPosText(text, len, &pos[0], paint);
+ y += metrics.fDescent + metrics.fLeading;
+ }
+
+ }
+
+private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ScaledEmojiGM;)
+DEF_GM(return new ScaledEmojiPosGM;)
}