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-rw-r--r--chromium/third_party/skia/samplecode/SampleTextBox.cpp115
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diff --git a/chromium/third_party/skia/samplecode/SampleTextBox.cpp b/chromium/third_party/skia/samplecode/SampleTextBox.cpp
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+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkBlurMaskFilter.h"
+#include "SkCanvas.h"
+#include "SkColorShader.h"
+#include "SkGradientShader.h"
+#include "SkGraphics.h"
+#include "SkImageDecoder.h"
+#include "SkPath.h"
+#include "SkRandom.h"
+#include "SkRegion.h"
+#include "SkShader.h"
+#include "SkUtils.h"
+#include "SkXfermode.h"
+#include "SkColorPriv.h"
+#include "SkColorFilter.h"
+#include "SkTime.h"
+#include "SkTypeface.h"
+#include "SkTextBox.h"
+#include "SkOSFile.h"
+#include "SkStream.h"
+#include "SkKey.h"
+
+extern void skia_set_text_gamma(float blackGamma, float whiteGamma);
+
+#if defined(SK_BUILD_FOR_WIN) && defined(SK_FONTHOST_WIN_GDI)
+extern SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT&);
+#endif
+
+static const char gText[] =
+ "When in the Course of human events it becomes necessary for one people "
+ "to dissolve the political bands which have connected them with another "
+ "and to assume among the powers of the earth, the separate and equal "
+ "station to which the Laws of Nature and of Nature's God entitle them, "
+ "a decent respect to the opinions of mankind requires that they should "
+ "declare the causes which impel them to the separation.";
+
+class TextBoxView : public SampleView {
+public:
+ TextBoxView() {
+#if defined(SK_BUILD_FOR_WIN) && defined(SK_FONTHOST_WIN_GDI)
+ LOGFONT lf;
+ sk_bzero(&lf, sizeof(lf));
+ lf.lfHeight = 9;
+ SkTypeface* tf0 = SkCreateTypefaceFromLOGFONT(lf);
+ lf.lfHeight = 12;
+ SkTypeface* tf1 = SkCreateTypefaceFromLOGFONT(lf);
+ // we assert that different sizes should not affect which face we get
+ SkASSERT(tf0 == tf1);
+ tf0->unref();
+ tf1->unref();
+#endif
+ }
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SampleCode::TitleR(evt, "TextBox");
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ void drawTest(SkCanvas* canvas, SkScalar w, SkScalar h, SkColor fg, SkColor bg) {
+ SkAutoCanvasRestore acr(canvas, true);
+
+ canvas->clipRect(SkRect::MakeWH(w, h));
+ canvas->drawColor(bg);
+ SkScalar margin = 20;
+ SkTextBox tbox;
+ tbox.setMode(SkTextBox::kLineBreak_Mode);
+ tbox.setBox(margin, margin,
+ w - margin, h - margin);
+ tbox.setSpacing(SkIntToScalar(3)/3, 0);
+
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setLCDRenderText(true);
+ paint.setColor(fg);
+ tbox.setText(gText, strlen(gText), paint);
+
+ for (int i = 9; i < 24; i += 2) {
+ paint.setTextSize(SkIntToScalar(i));
+ tbox.draw(canvas);
+ canvas->translate(0, tbox.getTextHeight() + paint.getFontSpacing());
+ }
+ }
+
+ virtual void onDrawContent(SkCanvas* canvas) {
+ SkScalar width = this->width() / 3;
+ drawTest(canvas, width, this->height(), SK_ColorBLACK, SK_ColorWHITE);
+ canvas->translate(width, 0);
+ drawTest(canvas, width, this->height(), SK_ColorWHITE, SK_ColorBLACK);
+ canvas->translate(width, 0);
+ drawTest(canvas, width, this->height()/2, SK_ColorGRAY, SK_ColorWHITE);
+ canvas->translate(0, this->height()/2);
+ drawTest(canvas, width, this->height()/2, SK_ColorGRAY, SK_ColorBLACK);
+ }
+
+private:
+ typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new TextBoxView; }
+static SkViewRegister reg(MyFactory);