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 "ui/views/layout/box_layout.h" 6 7 #include "testing/gtest/include/gtest/gtest.h" 8 #include "ui/views/test/test_views.h" 9 #include "ui/views/view.h" 10 11 namespace views { 12 13 namespace { 14 15 class BoxLayoutTest : public testing::Test { 16 public: 17 virtual void SetUp() OVERRIDE { 18 host_.reset(new View); 19 } 20 21 scoped_ptr<View> host_; 22 scoped_ptr<BoxLayout> layout_; 23 }; 24 25 } // namespace 26 27 TEST_F(BoxLayoutTest, Empty) { 28 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 20)); 29 EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get())); 30 } 31 32 TEST_F(BoxLayoutTest, AlignmentHorizontal) { 33 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0)); 34 View* v1 = new StaticSizedView(gfx::Size(10, 20)); 35 host_->AddChildView(v1); 36 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 37 host_->AddChildView(v2); 38 EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get())); 39 host_->SetBounds(0, 0, 20, 20); 40 layout_->Layout(host_.get()); 41 EXPECT_EQ(gfx::Rect(0, 0, 10, 20), v1->bounds()); 42 EXPECT_EQ(gfx::Rect(10, 0, 10, 20), v2->bounds()); 43 } 44 45 TEST_F(BoxLayoutTest, AlignmentVertical) { 46 layout_.reset(new BoxLayout(BoxLayout::kVertical, 0, 0, 0)); 47 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 48 host_->AddChildView(v1); 49 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 50 host_->AddChildView(v2); 51 EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get())); 52 host_->SetBounds(0, 0, 20, 20); 53 layout_->Layout(host_.get()); 54 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); 55 EXPECT_EQ(gfx::Rect(0, 10, 20, 10), v2->bounds()); 56 } 57 58 TEST_F(BoxLayoutTest, Spacing) { 59 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 7, 7, 8)); 60 View* v1 = new StaticSizedView(gfx::Size(10, 20)); 61 host_->AddChildView(v1); 62 View* v2 = new StaticSizedView(gfx::Size(10, 20)); 63 host_->AddChildView(v2); 64 EXPECT_EQ(gfx::Size(42, 34), layout_->GetPreferredSize(host_.get())); 65 host_->SetBounds(0, 0, 100, 100); 66 layout_->Layout(host_.get()); 67 EXPECT_EQ(gfx::Rect(7, 7, 10, 86), v1->bounds()); 68 EXPECT_EQ(gfx::Rect(25, 7, 10, 86), v2->bounds()); 69 } 70 71 TEST_F(BoxLayoutTest, Overflow) { 72 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0)); 73 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 74 host_->AddChildView(v1); 75 View* v2 = new StaticSizedView(gfx::Size(10, 20)); 76 host_->AddChildView(v2); 77 host_->SetBounds(0, 0, 10, 10); 78 layout_->Layout(host_.get()); 79 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); 80 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); 81 } 82 83 TEST_F(BoxLayoutTest, NoSpace) { 84 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10)); 85 View* childView = new StaticSizedView(gfx::Size(20, 20)); 86 host_->AddChildView(childView); 87 host_->SetBounds(0, 0, 10, 10); 88 layout_->Layout(host_.get()); 89 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), childView->bounds()); 90 } 91 92 TEST_F(BoxLayoutTest, InvisibleChild) { 93 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10)); 94 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 95 v1->SetVisible(false); 96 host_->AddChildView(v1); 97 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 98 host_->AddChildView(v2); 99 EXPECT_EQ(gfx::Size(30, 30), layout_->GetPreferredSize(host_.get())); 100 host_->SetBounds(0, 0, 30, 30); 101 layout_->Layout(host_.get()); 102 EXPECT_EQ(gfx::Rect(10, 10, 10, 10), v2->bounds()); 103 } 104 105 TEST_F(BoxLayoutTest, DistributeEmptySpace) { 106 layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10)); 107 layout_->set_spread_blank_space(true); 108 109 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 110 host_->AddChildView(v1); 111 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 112 host_->AddChildView(v2); 113 EXPECT_EQ(gfx::Size(60, 40), layout_->GetPreferredSize(host_.get())); 114 115 host_->SetBounds(0, 0, 100, 40); 116 layout_->Layout(host_.get()); 117 EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString()); 118 EXPECT_EQ(gfx::Rect(60, 10, 30, 20).ToString(), v2->bounds().ToString()); 119 } 120 121 TEST_F(BoxLayoutTest, UseHeightForWidth) { 122 layout_.reset(new BoxLayout(BoxLayout::kVertical, 0, 0, 0)); 123 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 124 host_->AddChildView(v1); 125 View* v2 = new ProportionallySizedView(2); 126 host_->AddChildView(v2); 127 EXPECT_EQ(gfx::Size(20, 50), layout_->GetPreferredSize(host_.get())); 128 129 host_->SetBounds(0, 0, 20, 50); 130 layout_->Layout(host_.get()); 131 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); 132 EXPECT_EQ(gfx::Rect(0, 10, 20, 40), v2->bounds()); 133 134 EXPECT_EQ(110, layout_->GetPreferredHeightForWidth(host_.get(), 50)); 135 } 136 137 TEST_F(BoxLayoutTest, EmptyPreferredSize) { 138 for (size_t i = 0; i < 2; i++) { 139 BoxLayout::Orientation orientation = i == 0 ? BoxLayout::kHorizontal : 140 BoxLayout::kVertical; 141 host_->RemoveAllChildViews(true); 142 host_->SetLayoutManager(new BoxLayout(orientation, 0, 0, 5)); 143 View* v1 = new StaticSizedView(gfx::Size()); 144 host_->AddChildView(v1); 145 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 146 host_->AddChildView(v2); 147 host_->SizeToPreferredSize(); 148 host_->Layout(); 149 150 EXPECT_EQ(v2->GetPreferredSize().width(), host_->bounds().width()) << i; 151 EXPECT_EQ(v2->GetPreferredSize().height(), host_->bounds().height()) << i; 152 EXPECT_EQ(v1->GetPreferredSize().width(), v1->bounds().width()) << i; 153 EXPECT_EQ(v1->GetPreferredSize().height(), v1->bounds().height()) << i; 154 EXPECT_EQ(v2->GetPreferredSize().width(), v2->bounds().width()) << i; 155 EXPECT_EQ(v2->GetPreferredSize().height(), v2->bounds().height()) << i; 156 } 157 } 158 159 } // namespace views 160
