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 // Set an overlay image. 65 gfx::ImageSkia overlay_image = CreateTestImage(12, 22); 66 button.SetOverlayImage(&overlay_image); 67 EXPECT_EQ(12, button.overlay_image_.width()); 68 EXPECT_EQ(22, button.overlay_image_.height()); 69 70 // By convention, preferred size doesn't change, even though pushed image 71 // is bigger. 72 EXPECT_EQ("10x20", button.GetPreferredSize().ToString()); 73 74 // We're still painting the normal image. 75 EXPECT_FALSE(button.GetImageToPaint().isNull()); 76 EXPECT_EQ(10, button.GetImageToPaint().width()); 77 EXPECT_EQ(20, button.GetImageToPaint().height()); 78 79 // Reset the overlay image. 80 button.SetOverlayImage(NULL); 81 EXPECT_TRUE(button.overlay_image_.isNull()); 82 } 83 84 TEST_F(ImageButtonTest, SetAndGetImage) { 85 ImageButton button(NULL); 86 87 // Images start as null. 88 EXPECT_TRUE(button.GetImage(Button::STATE_NORMAL).isNull()); 89 EXPECT_TRUE(button.GetImage(Button::STATE_HOVERED).isNull()); 90 EXPECT_TRUE(button.GetImage(Button::STATE_PRESSED).isNull()); 91 EXPECT_TRUE(button.GetImage(Button::STATE_DISABLED).isNull()); 92 93 // Setting images works as expected. 94 gfx::ImageSkia image1 = CreateTestImage(10, 11); 95 gfx::ImageSkia image2 = CreateTestImage(20, 21); 96 button.SetImage(Button::STATE_NORMAL, &image1); 97 button.SetImage(Button::STATE_HOVERED, &image2); 98 EXPECT_TRUE( 99 button.GetImage(Button::STATE_NORMAL).BackedBySameObjectAs(image1)); 100 EXPECT_TRUE( 101 button.GetImage(Button::STATE_HOVERED).BackedBySameObjectAs(image2)); 102 EXPECT_TRUE(button.GetImage(Button::STATE_PRESSED).isNull()); 103 EXPECT_TRUE(button.GetImage(Button::STATE_DISABLED).isNull()); 104 105 // ImageButton supports NULL image pointers. 106 button.SetImage(Button::STATE_NORMAL, NULL); 107 EXPECT_TRUE(button.GetImage(Button::STATE_NORMAL).isNull()); 108 } 109 110 TEST_F(ImageButtonTest, ImagePositionWithBorder) { 111 ImageButton button(NULL); 112 gfx::ImageSkia image = CreateTestImage(20, 30); 113 button.SetImage(CustomButton::STATE_NORMAL, &image); 114 115 // The image should be painted at the top-left corner. 116 EXPECT_EQ(gfx::Point().ToString(), 117 button.ComputeImagePaintPosition(image).ToString()); 118 119 button.set_border(views::Border::CreateEmptyBorder(10, 5, 0, 0)); 120 EXPECT_EQ(gfx::Point(5, 10).ToString(), 121 button.ComputeImagePaintPosition(image).ToString()); 122 123 button.set_border(NULL); 124 button.SetBounds(0, 0, 50, 50); 125 EXPECT_EQ(gfx::Point().ToString(), 126 button.ComputeImagePaintPosition(image).ToString()); 127 128 button.SetImageAlignment(ImageButton::ALIGN_CENTER, 129 ImageButton::ALIGN_MIDDLE); 130 EXPECT_EQ(gfx::Point(15, 10).ToString(), 131 button.ComputeImagePaintPosition(image).ToString()); 132 button.set_border(views::Border::CreateEmptyBorder(10, 10, 0, 0)); 133 EXPECT_EQ(gfx::Point(20, 15).ToString(), 134 button.ComputeImagePaintPosition(image).ToString()); 135 } 136 137 TEST_F(ImageButtonTest, LeftAlignedMirrored) { 138 ImageButton button(NULL); 139 gfx::ImageSkia image = CreateTestImage(20, 30); 140 button.SetImage(CustomButton::STATE_NORMAL, &image); 141 button.SetBounds(0, 0, 50, 30); 142 button.SetImageAlignment(ImageButton::ALIGN_LEFT, 143 ImageButton::ALIGN_BOTTOM); 144 button.SetDrawImageMirrored(true); 145 146 // Because the coordinates are flipped, we should expect this to draw as if 147 // it were ALIGN_RIGHT. 148 EXPECT_EQ(gfx::Point(30, 0).ToString(), 149 button.ComputeImagePaintPosition(image).ToString()); 150 } 151 152 TEST_F(ImageButtonTest, RightAlignedMirrored) { 153 ImageButton button(NULL); 154 gfx::ImageSkia image = CreateTestImage(20, 30); 155 button.SetImage(CustomButton::STATE_NORMAL, &image); 156 button.SetBounds(0, 0, 50, 30); 157 button.SetImageAlignment(ImageButton::ALIGN_RIGHT, 158 ImageButton::ALIGN_BOTTOM); 159 button.SetDrawImageMirrored(true); 160 161 // Because the coordinates are flipped, we should expect this to draw as if 162 // it were ALIGN_LEFT. 163 EXPECT_EQ(gfx::Point(0, 0).ToString(), 164 button.ComputeImagePaintPosition(image).ToString()); 165 } 166 167 } // namespace views 168
