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| 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 }; | |
| 23 | |
| 24 } // namespace | |
| 25 | |
| 26 TEST_F(BoxLayoutTest, Empty) { | |
| 27 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 20); | |
| 28 host_->SetLayoutManager(layout); | |
| 29 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); | |
| 30 } | |
| 31 | |
| 32 TEST_F(BoxLayoutTest, AlignmentHorizontal) { | |
| 33 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); | |
| 34 host_->SetLayoutManager(layout); | |
| 35 View* v1 = new StaticSizedView(gfx::Size(10, 20)); | |
| 36 host_->AddChildView(v1); | |
| 37 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 38 host_->AddChildView(v2); | |
| 39 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); | |
| 40 host_->SetBounds(0, 0, 20, 20); | |
| 41 host_->Layout(); | |
| 42 EXPECT_EQ(gfx::Rect(0, 0, 10, 20), v1->bounds()); | |
| 43 EXPECT_EQ(gfx::Rect(10, 0, 10, 20), v2->bounds()); | |
| 44 } | |
| 45 | |
| 46 TEST_F(BoxLayoutTest, AlignmentVertical) { | |
| 47 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); | |
| 48 host_->SetLayoutManager(layout); | |
| 49 View* v1 = new StaticSizedView(gfx::Size(20, 10)); | |
| 50 host_->AddChildView(v1); | |
| 51 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 52 host_->AddChildView(v2); | |
| 53 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); | |
| 54 host_->SetBounds(0, 0, 20, 20); | |
| 55 host_->Layout(); | |
| 56 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); | |
| 57 EXPECT_EQ(gfx::Rect(0, 10, 20, 10), v2->bounds()); | |
| 58 } | |
| 59 | |
| 60 TEST_F(BoxLayoutTest, SetInsideBorderInsets) { | |
| 61 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 20, 0); | |
| 62 host_->SetLayoutManager(layout); | |
| 63 View* v1 = new StaticSizedView(gfx::Size(10, 20)); | |
| 64 host_->AddChildView(v1); | |
| 65 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 66 host_->AddChildView(v2); | |
| 67 EXPECT_EQ(gfx::Size(40, 60), layout->GetPreferredSize(host_.get())); | |
| 68 host_->SetBounds(0, 0, 40, 60); | |
| 69 host_->Layout(); | |
| 70 EXPECT_EQ(gfx::Rect(10, 20, 10, 20), v1->bounds()); | |
| 71 EXPECT_EQ(gfx::Rect(20, 20, 10, 20), v2->bounds()); | |
| 72 | |
| 73 layout->set_inside_border_insets( | |
| 74 gfx::Insets(5, 10, 15, 20)); | |
| 75 EXPECT_EQ(gfx::Size(50, 40), layout->GetPreferredSize(host_.get())); | |
| 76 host_->SetBounds(0, 0, 50, 40); | |
| 77 host_->Layout(); | |
| 78 EXPECT_EQ(gfx::Rect(10, 5, 10, 20), v1->bounds()); | |
| 79 EXPECT_EQ(gfx::Rect(20, 5, 10, 20), v2->bounds()); | |
| 80 } | |
| 81 | |
| 82 TEST_F(BoxLayoutTest, Spacing) { | |
| 83 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 7, 7, 8); | |
| 84 host_->SetLayoutManager(layout); | |
| 85 View* v1 = new StaticSizedView(gfx::Size(10, 20)); | |
| 86 host_->AddChildView(v1); | |
| 87 View* v2 = new StaticSizedView(gfx::Size(10, 20)); | |
| 88 host_->AddChildView(v2); | |
| 89 EXPECT_EQ(gfx::Size(42, 34), layout->GetPreferredSize(host_.get())); | |
| 90 host_->SetBounds(0, 0, 100, 100); | |
| 91 host_->Layout(); | |
| 92 EXPECT_EQ(gfx::Rect(7, 7, 10, 86), v1->bounds()); | |
| 93 EXPECT_EQ(gfx::Rect(25, 7, 10, 86), v2->bounds()); | |
| 94 } | |
| 95 | |
| 96 TEST_F(BoxLayoutTest, Overflow) { | |
| 97 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); | |
| 98 host_->SetLayoutManager(layout); | |
| 99 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 100 host_->AddChildView(v1); | |
| 101 View* v2 = new StaticSizedView(gfx::Size(10, 20)); | |
| 102 host_->AddChildView(v2); | |
| 103 host_->SetBounds(0, 0, 10, 10); | |
| 104 | |
| 105 // Overflows by positioning views at the start and truncating anything that | |
| 106 // doesn't fit. | |
| 107 host_->Layout(); | |
| 108 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); | |
| 109 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); | |
| 110 | |
| 111 // All values of main axis alignment should overflow in the same manner. | |
| 112 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 113 host_->Layout(); | |
| 114 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); | |
| 115 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); | |
| 116 | |
| 117 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 118 host_->Layout(); | |
| 119 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); | |
| 120 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); | |
| 121 | |
| 122 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 123 host_->Layout(); | |
| 124 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); | |
| 125 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); | |
| 126 } | |
| 127 | |
| 128 TEST_F(BoxLayoutTest, NoSpace) { | |
| 129 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 130 host_->SetLayoutManager(layout); | |
| 131 View* childView = new StaticSizedView(gfx::Size(20, 20)); | |
| 132 host_->AddChildView(childView); | |
| 133 host_->SetBounds(0, 0, 10, 10); | |
| 134 host_->Layout(); | |
| 135 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), childView->bounds()); | |
| 136 } | |
| 137 | |
| 138 TEST_F(BoxLayoutTest, InvisibleChild) { | |
| 139 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 140 host_->SetLayoutManager(layout); | |
| 141 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 142 v1->SetVisible(false); | |
| 143 host_->AddChildView(v1); | |
| 144 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 145 host_->AddChildView(v2); | |
| 146 EXPECT_EQ(gfx::Size(30, 30), layout->GetPreferredSize(host_.get())); | |
| 147 host_->SetBounds(0, 0, 30, 30); | |
| 148 host_->Layout(); | |
| 149 EXPECT_EQ(gfx::Rect(10, 10, 10, 10), v2->bounds()); | |
| 150 } | |
| 151 | |
| 152 TEST_F(BoxLayoutTest, UseHeightForWidth) { | |
| 153 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); | |
| 154 host_->SetLayoutManager(layout); | |
| 155 View* v1 = new StaticSizedView(gfx::Size(20, 10)); | |
| 156 host_->AddChildView(v1); | |
| 157 ProportionallySizedView* v2 = new ProportionallySizedView(2); | |
| 158 v2->set_preferred_width(10); | |
| 159 host_->AddChildView(v2); | |
| 160 EXPECT_EQ(gfx::Size(20, 50), layout->GetPreferredSize(host_.get())); | |
| 161 | |
| 162 host_->SetBounds(0, 0, 20, 50); | |
| 163 host_->Layout(); | |
| 164 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); | |
| 165 EXPECT_EQ(gfx::Rect(0, 10, 20, 40), v2->bounds()); | |
| 166 | |
| 167 EXPECT_EQ(110, layout->GetPreferredHeightForWidth(host_.get(), 50)); | |
| 168 | |
| 169 // Test without horizontal stretching of the views. | |
| 170 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); | |
| 171 EXPECT_EQ(gfx::Size(20, 30).ToString(), | |
| 172 layout->GetPreferredSize(host_.get()).ToString()); | |
| 173 | |
| 174 host_->SetBounds(0, 0, 20, 30); | |
| 175 host_->Layout(); | |
| 176 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); | |
| 177 EXPECT_EQ(gfx::Rect(10, 10, 10, 20), v2->bounds()); | |
| 178 | |
| 179 EXPECT_EQ(30, layout->GetPreferredHeightForWidth(host_.get(), 50)); | |
| 180 } | |
| 181 | |
| 182 TEST_F(BoxLayoutTest, EmptyPreferredSize) { | |
| 183 for (size_t i = 0; i < 2; i++) { | |
| 184 BoxLayout::Orientation orientation = i == 0 ? BoxLayout::kHorizontal : | |
| 185 BoxLayout::kVertical; | |
| 186 host_->RemoveAllChildViews(true); | |
| 187 host_->SetLayoutManager(new BoxLayout(orientation, 0, 0, 5)); | |
| 188 View* v1 = new StaticSizedView(gfx::Size()); | |
| 189 host_->AddChildView(v1); | |
| 190 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 191 host_->AddChildView(v2); | |
| 192 host_->SizeToPreferredSize(); | |
| 193 host_->Layout(); | |
| 194 | |
| 195 EXPECT_EQ(v2->GetPreferredSize().width(), host_->bounds().width()) << i; | |
| 196 EXPECT_EQ(v2->GetPreferredSize().height(), host_->bounds().height()) << i; | |
| 197 EXPECT_EQ(v1->GetPreferredSize().width(), v1->bounds().width()) << i; | |
| 198 EXPECT_EQ(v1->GetPreferredSize().height(), v1->bounds().height()) << i; | |
| 199 EXPECT_EQ(v2->GetPreferredSize().width(), v2->bounds().width()) << i; | |
| 200 EXPECT_EQ(v2->GetPreferredSize().height(), v2->bounds().height()) << i; | |
| 201 } | |
| 202 } | |
| 203 | |
| 204 TEST_F(BoxLayoutTest, MainAxisAlignmentHorizontal) { | |
| 205 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 206 host_->SetLayoutManager(layout); | |
| 207 | |
| 208 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 209 host_->AddChildView(v1); | |
| 210 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 211 host_->AddChildView(v2); | |
| 212 | |
| 213 host_->SetBounds(0, 0, 100, 40); | |
| 214 | |
| 215 // Align children to the horizontal start by default. | |
| 216 host_->Layout(); | |
| 217 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 218 EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString()); | |
| 219 | |
| 220 // Ensure same results for MAIN_AXIS_ALIGNMENT_START. | |
| 221 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 222 host_->Layout(); | |
| 223 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 224 EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString()); | |
| 225 | |
| 226 // Aligns children to the center horizontally. | |
| 227 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 228 host_->Layout(); | |
| 229 EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 230 EXPECT_EQ(gfx::Rect(60, 10, 10, 20).ToString(), v2->bounds().ToString()); | |
| 231 | |
| 232 // Aligns children to the end of the host horizontally, accounting for the | |
| 233 // inside border spacing. | |
| 234 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 235 host_->Layout(); | |
| 236 EXPECT_EQ(gfx::Rect(50, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 237 EXPECT_EQ(gfx::Rect(80, 10, 10, 20).ToString(), v2->bounds().ToString()); | |
| 238 } | |
| 239 | |
| 240 TEST_F(BoxLayoutTest, MainAxisAlignmentVertical) { | |
| 241 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); | |
| 242 host_->SetLayoutManager(layout); | |
| 243 | |
| 244 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 245 host_->AddChildView(v1); | |
| 246 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 247 host_->AddChildView(v2); | |
| 248 | |
| 249 host_->SetBounds(0, 0, 40, 100); | |
| 250 | |
| 251 // Align children to the vertical start by default. | |
| 252 host_->Layout(); | |
| 253 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 254 EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString()); | |
| 255 | |
| 256 // Ensure same results for MAIN_AXIS_ALIGNMENT_START. | |
| 257 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 258 host_->Layout(); | |
| 259 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 260 EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString()); | |
| 261 | |
| 262 // Aligns children to the center vertically. | |
| 263 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 264 host_->Layout(); | |
| 265 EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString()); | |
| 266 EXPECT_EQ(gfx::Rect(10, 60, 20, 10).ToString(), v2->bounds().ToString()); | |
| 267 | |
| 268 // Aligns children to the end of the host vertically, accounting for the | |
| 269 // inside border spacing. | |
| 270 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 271 host_->Layout(); | |
| 272 EXPECT_EQ(gfx::Rect(10, 50, 20, 20).ToString(), v1->bounds().ToString()); | |
| 273 EXPECT_EQ(gfx::Rect(10, 80, 20, 10).ToString(), v2->bounds().ToString()); | |
| 274 } | |
| 275 | |
| 276 TEST_F(BoxLayoutTest, CrossAxisAlignmentHorizontal) { | |
| 277 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 278 host_->SetLayoutManager(layout); | |
| 279 | |
| 280 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 281 host_->AddChildView(v1); | |
| 282 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 283 host_->AddChildView(v2); | |
| 284 | |
| 285 host_->SetBounds(0, 0, 100, 60); | |
| 286 | |
| 287 // Stretch children to fill the available height by default. | |
| 288 host_->Layout(); | |
| 289 EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString()); | |
| 290 EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString()); | |
| 291 | |
| 292 // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH. | |
| 293 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH); | |
| 294 host_->Layout(); | |
| 295 EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString()); | |
| 296 EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString()); | |
| 297 | |
| 298 // Aligns children to the start vertically. | |
| 299 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START); | |
| 300 host_->Layout(); | |
| 301 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 302 EXPECT_EQ(gfx::Rect(40, 10, 10, 10).ToString(), v2->bounds().ToString()); | |
| 303 | |
| 304 // Aligns children to the center vertically. | |
| 305 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER); | |
| 306 host_->Layout(); | |
| 307 EXPECT_EQ(gfx::Rect(10, 20, 20, 20).ToString(), v1->bounds().ToString()); | |
| 308 EXPECT_EQ(gfx::Rect(40, 25, 10, 10).ToString(), v2->bounds().ToString()); | |
| 309 | |
| 310 // Aligns children to the end of the host vertically, accounting for the | |
| 311 // inside border spacing. | |
| 312 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); | |
| 313 host_->Layout(); | |
| 314 EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString()); | |
| 315 EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString()); | |
| 316 } | |
| 317 | |
| 318 TEST_F(BoxLayoutTest, CrossAxisAlignmentVertical) { | |
| 319 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); | |
| 320 host_->SetLayoutManager(layout); | |
| 321 | |
| 322 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 323 host_->AddChildView(v1); | |
| 324 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 325 host_->AddChildView(v2); | |
| 326 | |
| 327 host_->SetBounds(0, 0, 60, 100); | |
| 328 | |
| 329 // Stretch children to fill the available width by default. | |
| 330 host_->Layout(); | |
| 331 EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString()); | |
| 332 EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString()); | |
| 333 | |
| 334 // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH. | |
| 335 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH); | |
| 336 host_->Layout(); | |
| 337 EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString()); | |
| 338 EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString()); | |
| 339 | |
| 340 // Aligns children to the start horizontally. | |
| 341 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START); | |
| 342 host_->Layout(); | |
| 343 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 344 EXPECT_EQ(gfx::Rect(10, 40, 10, 10).ToString(), v2->bounds().ToString()); | |
| 345 | |
| 346 // Aligns children to the center horizontally. | |
| 347 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER); | |
| 348 host_->Layout(); | |
| 349 EXPECT_EQ(gfx::Rect(20, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 350 EXPECT_EQ(gfx::Rect(25, 40, 10, 10).ToString(), v2->bounds().ToString()); | |
| 351 | |
| 352 // Aligns children to the end of the host horizontally, accounting for the | |
| 353 // inside border spacing. | |
| 354 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); | |
| 355 host_->Layout(); | |
| 356 EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString()); | |
| 357 EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString()); | |
| 358 } | |
| 359 | |
| 360 TEST_F(BoxLayoutTest, FlexAll) { | |
| 361 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 362 host_->SetLayoutManager(layout); | |
| 363 layout->SetDefaultFlex(1); | |
| 364 | |
| 365 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 366 host_->AddChildView(v1); | |
| 367 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 368 host_->AddChildView(v2); | |
| 369 View* v3 = new StaticSizedView(gfx::Size(30, 30)); | |
| 370 host_->AddChildView(v3); | |
| 371 EXPECT_EQ(gfx::Size(100, 50), layout->GetPreferredSize(host_.get())); | |
| 372 | |
| 373 host_->SetBounds(0, 0, 120, 50); | |
| 374 host_->Layout(); | |
| 375 EXPECT_EQ(gfx::Rect(10, 10, 27, 30).ToString(), v1->bounds().ToString()); | |
| 376 EXPECT_EQ(gfx::Rect(47, 10, 16, 30).ToString(), v2->bounds().ToString()); | |
| 377 EXPECT_EQ(gfx::Rect(73, 10, 37, 30).ToString(), v3->bounds().ToString()); | |
| 378 } | |
| 379 | |
| 380 TEST_F(BoxLayoutTest, FlexGrowVertical) { | |
| 381 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); | |
| 382 host_->SetLayoutManager(layout); | |
| 383 | |
| 384 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 385 host_->AddChildView(v1); | |
| 386 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 387 host_->AddChildView(v2); | |
| 388 View* v3 = new StaticSizedView(gfx::Size(30, 30)); | |
| 389 host_->AddChildView(v3); | |
| 390 | |
| 391 host_->SetBounds(0, 0, 50, 130); | |
| 392 | |
| 393 // Views don't fill the available space by default. | |
| 394 host_->Layout(); | |
| 395 EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString()); | |
| 396 EXPECT_EQ(gfx::Rect(10, 40, 30, 10).ToString(), v2->bounds().ToString()); | |
| 397 EXPECT_EQ(gfx::Rect(10, 60, 30, 30).ToString(), v3->bounds().ToString()); | |
| 398 | |
| 399 std::vector<BoxLayout::MainAxisAlignment> main_alignments; | |
| 400 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 401 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 402 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 403 | |
| 404 for (size_t i = 0; i < main_alignments.size(); ++i) { | |
| 405 layout->set_main_axis_alignment(main_alignments[i]); | |
| 406 | |
| 407 // Set the first view to consume all free space. | |
| 408 layout->SetFlexForView(v1, 1); | |
| 409 layout->ClearFlexForView(v2); | |
| 410 layout->ClearFlexForView(v3); | |
| 411 host_->Layout(); | |
| 412 EXPECT_EQ(gfx::Rect(10, 10, 30, 50).ToString(), v1->bounds().ToString()); | |
| 413 EXPECT_EQ(gfx::Rect(10, 70, 30, 10).ToString(), v2->bounds().ToString()); | |
| 414 EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString()); | |
| 415 | |
| 416 // Set the third view to take 2/3s of the free space and leave the first | |
| 417 // view | |
| 418 // with 1/3. | |
| 419 layout->SetFlexForView(v3, 2); | |
| 420 host_->Layout(); | |
| 421 EXPECT_EQ(gfx::Rect(10, 10, 30, 30).ToString(), v1->bounds().ToString()); | |
| 422 EXPECT_EQ(gfx::Rect(10, 50, 30, 10).ToString(), v2->bounds().ToString()); | |
| 423 EXPECT_EQ(gfx::Rect(10, 70, 30, 50).ToString(), v3->bounds().ToString()); | |
| 424 | |
| 425 // Clear the previously set flex values and set the second view to take all | |
| 426 // the free space. | |
| 427 layout->ClearFlexForView(v1); | |
| 428 layout->SetFlexForView(v2, 1); | |
| 429 layout->ClearFlexForView(v3); | |
| 430 host_->Layout(); | |
| 431 EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString()); | |
| 432 EXPECT_EQ(gfx::Rect(10, 40, 30, 40).ToString(), v2->bounds().ToString()); | |
| 433 EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString()); | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder) { | |
| 438 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); | |
| 439 host_->SetLayoutManager(layout); | |
| 440 layout->SetDefaultFlex(1); | |
| 441 std::vector<View*> views; | |
| 442 for (int i = 0; i < 5; ++i) { | |
| 443 View* view = new StaticSizedView(gfx::Size(10, 10)); | |
| 444 views.push_back(view); | |
| 445 host_->AddChildView(view); | |
| 446 } | |
| 447 | |
| 448 EXPECT_EQ(gfx::Size(50, 10), layout->GetPreferredSize(host_.get())); | |
| 449 | |
| 450 host_->SetBounds(0, 0, 52, 10); | |
| 451 host_->Layout(); | |
| 452 // The 2nd and 4th views should have an extra pixel as they correspond to 20.8 | |
| 453 // and 41.6 which round up. | |
| 454 EXPECT_EQ(gfx::Rect(0, 0, 10, 10).ToString(), views[0]->bounds().ToString()); | |
| 455 EXPECT_EQ(gfx::Rect(10, 0, 11, 10).ToString(), views[1]->bounds().ToString()); | |
| 456 EXPECT_EQ(gfx::Rect(21, 0, 10, 10).ToString(), views[2]->bounds().ToString()); | |
| 457 EXPECT_EQ(gfx::Rect(31, 0, 11, 10).ToString(), views[3]->bounds().ToString()); | |
| 458 EXPECT_EQ(gfx::Rect(42, 0, 10, 10).ToString(), views[4]->bounds().ToString()); | |
| 459 } | |
| 460 | |
| 461 TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder2) { | |
| 462 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); | |
| 463 host_->SetLayoutManager(layout); | |
| 464 layout->SetDefaultFlex(1); | |
| 465 std::vector<View*> views; | |
| 466 for (int i = 0; i < 4; ++i) { | |
| 467 View* view = new StaticSizedView(gfx::Size(1, 10)); | |
| 468 views.push_back(view); | |
| 469 host_->AddChildView(view); | |
| 470 } | |
| 471 | |
| 472 EXPECT_EQ(gfx::Size(4, 10), layout->GetPreferredSize(host_.get())); | |
| 473 | |
| 474 host_->SetBounds(0, 0, 10, 10); | |
| 475 host_->Layout(); | |
| 476 // The 1st and 3rd views should have an extra pixel as they correspond to 2.5 | |
| 477 // and 7.5 which round up. | |
| 478 EXPECT_EQ(gfx::Rect(0, 0, 3, 10).ToString(), views[0]->bounds().ToString()); | |
| 479 EXPECT_EQ(gfx::Rect(3, 0, 2, 10).ToString(), views[1]->bounds().ToString()); | |
| 480 EXPECT_EQ(gfx::Rect(5, 0, 3, 10).ToString(), views[2]->bounds().ToString()); | |
| 481 EXPECT_EQ(gfx::Rect(8, 0, 2, 10).ToString(), views[3]->bounds().ToString()); | |
| 482 } | |
| 483 | |
| 484 TEST_F(BoxLayoutTest, FlexShrinkHorizontal) { | |
| 485 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); | |
| 486 host_->SetLayoutManager(layout); | |
| 487 | |
| 488 View* v1 = new StaticSizedView(gfx::Size(20, 20)); | |
| 489 host_->AddChildView(v1); | |
| 490 View* v2 = new StaticSizedView(gfx::Size(10, 10)); | |
| 491 host_->AddChildView(v2); | |
| 492 View* v3 = new StaticSizedView(gfx::Size(30, 30)); | |
| 493 host_->AddChildView(v3); | |
| 494 | |
| 495 host_->SetBounds(0, 0, 85, 50); | |
| 496 | |
| 497 // Truncate width by default. | |
| 498 host_->Layout(); | |
| 499 EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString()); | |
| 500 EXPECT_EQ(gfx::Rect(40, 10, 10, 30).ToString(), v2->bounds().ToString()); | |
| 501 EXPECT_EQ(gfx::Rect(60, 10, 15, 30).ToString(), v3->bounds().ToString()); | |
| 502 | |
| 503 std::vector<BoxLayout::MainAxisAlignment> main_alignments; | |
| 504 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 505 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 506 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 507 | |
| 508 for (size_t i = 0; i < main_alignments.size(); ++i) { | |
| 509 layout->set_main_axis_alignment(main_alignments[i]); | |
| 510 | |
| 511 // Set the first view to shrink as much as necessary. | |
| 512 layout->SetFlexForView(v1, 1); | |
| 513 layout->ClearFlexForView(v2); | |
| 514 layout->ClearFlexForView(v3); | |
| 515 host_->Layout(); | |
| 516 EXPECT_EQ(gfx::Rect(10, 10, 5, 30).ToString(), v1->bounds().ToString()); | |
| 517 EXPECT_EQ(gfx::Rect(25, 10, 10, 30).ToString(), v2->bounds().ToString()); | |
| 518 EXPECT_EQ(gfx::Rect(45, 10, 30, 30).ToString(), v3->bounds().ToString()); | |
| 519 | |
| 520 // Set the third view to shrink 2/3s of the free space and leave the first | |
| 521 // view with 1/3. | |
| 522 layout->SetFlexForView(v3, 2); | |
| 523 host_->Layout(); | |
| 524 EXPECT_EQ(gfx::Rect(10, 10, 15, 30).ToString(), v1->bounds().ToString()); | |
| 525 EXPECT_EQ(gfx::Rect(35, 10, 10, 30).ToString(), v2->bounds().ToString()); | |
| 526 EXPECT_EQ(gfx::Rect(55, 10, 20, 30).ToString(), v3->bounds().ToString()); | |
| 527 | |
| 528 // Clear the previously set flex values and set the second view to take all | |
| 529 // the free space with MAIN_AXIS_ALIGNMENT_END set. This causes the second | |
| 530 // view to shrink to zero and the third view still doesn't fit so it | |
| 531 // overflows. | |
| 532 layout->ClearFlexForView(v1); | |
| 533 layout->SetFlexForView(v2, 2); | |
| 534 layout->ClearFlexForView(v3); | |
| 535 host_->Layout(); | |
| 536 EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString()); | |
| 537 // Conceptually this view is at 10, 40, 0, 0. | |
| 538 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), v2->bounds().ToString()); | |
| 539 EXPECT_EQ(gfx::Rect(50, 10, 25, 30).ToString(), v3->bounds().ToString()); | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 TEST_F(BoxLayoutTest, FlexShrinkVerticalWithRemainder) { | |
| 544 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); | |
| 545 host_->SetLayoutManager(layout); | |
| 546 View* v1 = new StaticSizedView(gfx::Size(20, 10)); | |
| 547 host_->AddChildView(v1); | |
| 548 View* v2 = new StaticSizedView(gfx::Size(20, 20)); | |
| 549 host_->AddChildView(v2); | |
| 550 View* v3 = new StaticSizedView(gfx::Size(20, 10)); | |
| 551 host_->AddChildView(v3); | |
| 552 host_->SetBounds(0, 0, 20, 20); | |
| 553 | |
| 554 std::vector<BoxLayout::MainAxisAlignment> main_alignments; | |
| 555 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); | |
| 556 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); | |
| 557 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); | |
| 558 | |
| 559 for (size_t i = 0; i < main_alignments.size(); ++i) { | |
| 560 layout->set_main_axis_alignment(main_alignments[i]); | |
| 561 | |
| 562 // The first view shrinks by 1/3 of the excess, the second view shrinks by | |
| 563 // 2/3 of the excess and the third view should maintain its preferred size. | |
| 564 layout->SetFlexForView(v1, 1); | |
| 565 layout->SetFlexForView(v2, 2); | |
| 566 layout->ClearFlexForView(v3); | |
| 567 host_->Layout(); | |
| 568 EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString()); | |
| 569 EXPECT_EQ(gfx::Rect(0, 3, 20, 7).ToString(), v2->bounds().ToString()); | |
| 570 EXPECT_EQ(gfx::Rect(0, 10, 20, 10).ToString(), v3->bounds().ToString()); | |
| 571 | |
| 572 // The second view shrinks to 2/3 of the excess, the third view shrinks to | |
| 573 // 1/3 of the excess and the first view should maintain its preferred size. | |
| 574 layout->ClearFlexForView(v1); | |
| 575 layout->SetFlexForView(v2, 2); | |
| 576 layout->SetFlexForView(v3, 1); | |
| 577 host_->Layout(); | |
| 578 EXPECT_EQ(gfx::Rect(0, 0, 20, 10).ToString(), v1->bounds().ToString()); | |
| 579 EXPECT_EQ(gfx::Rect(0, 10, 20, 7).ToString(), v2->bounds().ToString()); | |
| 580 EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString()); | |
| 581 | |
| 582 // Each view shrinks equally to fit within the available space. | |
| 583 layout->SetFlexForView(v1, 1); | |
| 584 layout->SetFlexForView(v2, 1); | |
| 585 layout->SetFlexForView(v3, 1); | |
| 586 host_->Layout(); | |
| 587 EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString()); | |
| 588 EXPECT_EQ(gfx::Rect(0, 3, 20, 14).ToString(), v2->bounds().ToString()); | |
| 589 EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString()); | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 TEST_F(BoxLayoutTest, MinimumCrossAxisVertical) { | |
| 594 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); | |
| 595 host_->SetLayoutManager(layout); | |
| 596 View* v1 = new StaticSizedView(gfx::Size(20, 10)); | |
| 597 host_->AddChildView(v1); | |
| 598 layout->set_minimum_cross_axis_size(30); | |
| 599 | |
| 600 EXPECT_EQ(gfx::Size(30, 10), layout->GetPreferredSize(host_.get())); | |
| 601 } | |
| 602 | |
| 603 TEST_F(BoxLayoutTest, MinimumCrossAxisHorizontal) { | |
| 604 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); | |
| 605 host_->SetLayoutManager(layout); | |
| 606 View* v1 = new StaticSizedView(gfx::Size(20, 10)); | |
| 607 host_->AddChildView(v1); | |
| 608 layout->set_minimum_cross_axis_size(30); | |
| 609 | |
| 610 EXPECT_EQ(gfx::Size(20, 30), layout->GetPreferredSize(host_.get())); | |
| 611 } | |
| 612 | |
| 613 } // namespace views | |
| OLD | NEW |
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