1 // Copyright (c) 2012 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 "testing/gtest/include/gtest/gtest.h" 6 #include "ui/base/layout.h" 7 #include "ui/views/border.h" 8 #include "ui/views/controls/button/image_button.h" 9 #include "ui/views/test/views_test_base.h" 10 11 namespace { 12 13 gfx::ImageSkia CreateTestImage(int width, int height) { 14 SkBitmap bitmap; 15 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height); 16 bitmap.allocPixels(); 17 return gfx::ImageSkia::CreateFrom1xBitmap(bitmap); 18 } 19 20 } // namespace 21 22 namespace views { 23 24 typedef ViewsTestBase ImageButtonTest; 25 26 TEST_F(ImageButtonTest, Basics) { 27 ImageButton button(NULL); 28 29 // Our image to paint starts empty. 30 EXPECT_TRUE(button.GetImageToPaint().isNull()); 31 32 // Without a theme, buttons are 16x14 by default. 33 EXPECT_EQ("16x14", button.GetPreferredSize().ToString()); 34 35 // We can set a preferred size when we have no image. 36 button.SetPreferredSize(gfx::Size(5, 15)); 37 EXPECT_EQ("5x15", button.GetPreferredSize().ToString()); 38 39 // Set a normal image. 40 gfx::ImageSkia normal_image = CreateTestImage(10, 20); 41 button.SetImage(CustomButton::STATE_NORMAL, &normal_image); 42 43 // Image uses normal image for painting. 44 EXPECT_FALSE(button.GetImageToPaint().isNull()); 45 EXPECT_EQ(10, button.GetImageToPaint().width()); 46 EXPECT_EQ(20, button.GetImageToPaint().height()); 47 48 // Preferred size is the normal button size. 49 EXPECT_EQ("10x20", button.GetPreferredSize().ToString()); 50 51 // Set a pushed image. 52 gfx::ImageSkia pushed_image = CreateTestImage(11, 21); 53 button.SetImage(CustomButton::STATE_PRESSED, &pushed_image); 54 55 // By convention, preferred size doesn't change, even though pushed image 56 // is bigger. 57 EXPECT_EQ("10x20", button.GetPreferredSize().ToString()); 58 59 // We're still painting the normal image. 60 EXPECT_FALSE(button.GetImageToPaint().isNull()); 61 EXPECT_EQ(10, button.GetImageToPaint().width()); 62 EXPECT_EQ(20, button.GetImageToPaint().height()); 63 } 64 65 TEST_F(ImageButtonTest, SetAndGetImage) { 66 ImageButton button(NULL); 67 68 // Images start as null. 69 EXPECT_TRUE(button.GetImage(Button::STATE_NORMAL).isNull()); 70 EXPECT_TRUE(button.GetImage(Button::STATE_HOVERED).isNull()); 71 EXPECT_TRUE(button.GetImage(Button::STATE_PRESSED).isNull()); 72 EXPECT_TRUE(button.GetImage(Button::STATE_DISABLED).isNull()); 73 74 // Setting images works as expected. 75 gfx::ImageSkia image1 = CreateTestImage(10, 11); 76 gfx::ImageSkia image2 = CreateTestImage(20, 21); 77 button.SetImage(Button::STATE_NORMAL, &image1); 78 button.SetImage(Button::STATE_HOVERED, &image2); 79 EXPECT_TRUE( 80 button.GetImage(Button::STATE_NORMAL).BackedBySameObjectAs(image1)); 81 EXPECT_TRUE( 82 button.GetImage(Button::STATE_HOVERED).BackedBySameObjectAs(image2)); 83 EXPECT_TRUE(button.GetImage(Button::STATE_PRESSED).isNull()); 84 EXPECT_TRUE(button.GetImage(Button::STATE_DISABLED).isNull()); 85 86 // ImageButton supports NULL image pointers. 87 button.SetImage(Button::STATE_NORMAL, NULL); 88 EXPECT_TRUE(button.GetImage(Button::STATE_NORMAL).isNull()); 89 } 90 91 TEST_F(ImageButtonTest, ImagePositionWithBorder) { 92 ImageButton button(NULL); 93 gfx::ImageSkia image = CreateTestImage(20, 30); 94 button.SetImage(CustomButton::STATE_NORMAL, &image); 95 96 // The image should be painted at the top-left corner. 97 EXPECT_EQ(gfx::Point().ToString(), 98 button.ComputeImagePaintPosition(image).ToString()); 99 100 button.SetBorder(views::Border::CreateEmptyBorder(10, 5, 0, 0)); 101 EXPECT_EQ(gfx::Point(5, 10).ToString(), 102 button.ComputeImagePaintPosition(image).ToString()); 103 104 button.SetBorder(Border::NullBorder()); 105 button.SetBounds(0, 0, 50, 50); 106 EXPECT_EQ(gfx::Point().ToString(), 107 button.ComputeImagePaintPosition(image).ToString()); 108 109 button.SetImageAlignment(ImageButton::ALIGN_CENTER, 110 ImageButton::ALIGN_MIDDLE); 111 EXPECT_EQ(gfx::Point(15, 10).ToString(), 112 button.ComputeImagePaintPosition(image).ToString()); 113 button.SetBorder(views::Border::CreateEmptyBorder(10, 10, 0, 0)); 114 EXPECT_EQ(gfx::Point(20, 15).ToString(), 115 button.ComputeImagePaintPosition(image).ToString()); 116 } 117 118 TEST_F(ImageButtonTest, LeftAlignedMirrored) { 119 ImageButton button(NULL); 120 gfx::ImageSkia image = CreateTestImage(20, 30); 121 button.SetImage(CustomButton::STATE_NORMAL, &image); 122 button.SetBounds(0, 0, 50, 30); 123 button.SetImageAlignment(ImageButton::ALIGN_LEFT, 124 ImageButton::ALIGN_BOTTOM); 125 button.SetDrawImageMirrored(true); 126 127 // Because the coordinates are flipped, we should expect this to draw as if 128 // it were ALIGN_RIGHT. 129 EXPECT_EQ(gfx::Point(30, 0).ToString(), 130 button.ComputeImagePaintPosition(image).ToString()); 131 } 132 133 TEST_F(ImageButtonTest, RightAlignedMirrored) { 134 ImageButton button(NULL); 135 gfx::ImageSkia image = CreateTestImage(20, 30); 136 button.SetImage(CustomButton::STATE_NORMAL, &image); 137 button.SetBounds(0, 0, 50, 30); 138 button.SetImageAlignment(ImageButton::ALIGN_RIGHT, 139 ImageButton::ALIGN_BOTTOM); 140 button.SetDrawImageMirrored(true); 141 142 // Because the coordinates are flipped, we should expect this to draw as if 143 // it were ALIGN_LEFT. 144 EXPECT_EQ(gfx::Point(0, 0).ToString(), 145 button.ComputeImagePaintPosition(image).ToString()); 146 } 147 148 } // namespace views 149
