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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "ui/gfx/canvas.h" | |
6 | |
7 #import <Cocoa/Cocoa.h> | |
8 | |
9 #include "base/strings/utf_string_conversions.h" | |
10 #include "base/strings/sys_string_conversions.h" | |
11 #include "testing/gtest/include/gtest/gtest.h" | |
12 #include "ui/gfx/font.h" | |
13 #include "ui/gfx/font_list.h" | |
14 | |
15 namespace gfx { | |
16 | |
17 namespace { | |
18 | |
19 // Mac-specific code for string size computations. This is a verbatim copy | |
20 // of the old implementation that used to be in canvas_mac.mm. | |
21 void CanvasMac_SizeStringInt(const base::string16& text, | |
22 const FontList& font_list, | |
23 int* width, | |
24 int* height, | |
25 int line_height, | |
26 int flags) { | |
27 DLOG_IF(WARNING, line_height != 0) << "Line heights not implemented."; | |
28 DLOG_IF(WARNING, flags & Canvas::MULTI_LINE) << "Multi-line not implemented."; | |
29 | |
30 NSFont* native_font = font_list.GetPrimaryFont().GetNativeFont(); | |
31 NSString* ns_string = base::SysUTF16ToNSString(text); | |
32 NSDictionary* attributes = | |
33 [NSDictionary dictionaryWithObject:native_font | |
34 forKey:NSFontAttributeName]; | |
35 NSSize string_size = [ns_string sizeWithAttributes:attributes]; | |
36 *width = string_size.width; | |
37 *height = font_list.GetHeight(); | |
38 } | |
39 | |
40 } // namespace | |
41 | |
42 class CanvasTestMac : public testing::Test { | |
43 protected: | |
44 // Compare the size returned by Canvas::SizeStringInt to the size generated | |
45 // by the platform-specific version in CanvasMac_SizeStringInt. Will generate | |
46 // expectation failure on any mismatch. Only works for single-line text | |
47 // without specified line height, since that is all the platform | |
48 // implementation supports. | |
49 void CompareSizes(const char* text) { | |
50 FontList font_list(font_); | |
51 base::string16 text16 = base::UTF8ToUTF16(text); | |
52 | |
53 int mac_width = -1; | |
54 int mac_height = -1; | |
55 CanvasMac_SizeStringInt(text16, font_list, &mac_width, &mac_height, 0, 0); | |
56 | |
57 int canvas_width = -1; | |
58 int canvas_height = -1; | |
59 Canvas::SizeStringInt( | |
60 text16, font_list, &canvas_width, &canvas_height, 0, 0); | |
61 | |
62 EXPECT_EQ(mac_width, canvas_width) << " width for " << text; | |
63 EXPECT_EQ(mac_height, canvas_height) << " height for " << text; | |
64 } | |
65 | |
66 private: | |
67 Font font_; | |
68 }; | |
69 | |
70 // Tests that Canvas' SizeStringInt yields result consistent with a native | |
71 // implementation. | |
72 TEST_F(CanvasTestMac, StringSizeIdenticalForSkia) { | |
73 CompareSizes(""); | |
74 CompareSizes("Foo"); | |
75 CompareSizes("Longword"); | |
76 CompareSizes("This is a complete sentence."); | |
77 } | |
78 | |
79 } // namespace gfx | |
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