xref: /aosp_15_r20/external/skia/docs/examples/Canvas_drawText.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Canvas_drawText, 256, 200, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     SkFont defaultFont = SkFont(fontMgr->matchFamilyStyle(nullptr, {}));
8     float textSizes[] = { 12, 18, 24, 36 };
9     for (auto size: textSizes ) {
10         defaultFont.setSize(size);
11         canvas->drawString("Aa", 10, 20, defaultFont, paint);
12         canvas->translate(0, size * 2);
13     }
14     defaultFont = SkFont(fontMgr->matchFamilyStyle(nullptr, {}));
15     float yPos = 20;
16     for (auto size: textSizes ) {
17         float scale = size / 12.f;
18         canvas->resetMatrix();
19         canvas->translate(100, 0);
20         canvas->scale(scale, scale);
21         canvas->drawString("Aa", 10 / scale, yPos / scale, defaultFont, paint);
22         yPos += size * 2;
23     }
24 }
25 }  // END FIDDLE
26