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grid_layout_unittest.cc
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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "testing/gtest/include/gtest/gtest.h"
#include "views/grid_layout.h"
#include "views/view.h"
using views::ColumnSet;
using views::GridLayout;
using views::View;
static void ExpectViewBoundsEquals(int x, int y, int w, int h,
const View* view) {
EXPECT_EQ(x, view->x());
EXPECT_EQ(y, view->y());
EXPECT_EQ(w, view->width());
EXPECT_EQ(h, view->height());
}
class SettableSizeView : public View {
public:
explicit SettableSizeView(const gfx::Size& pref) {
pref_ = pref;
}
virtual gfx::Size GetPreferredSize() {
return pref_;
}
private:
gfx::Size pref_;
};
class GridLayoutTest : public testing::Test {
public:
virtual void SetUp() {
layout = new GridLayout(&host);
}
virtual void TearDown() {
delete layout;
}
virtual void RemoveAll() {
for (int i = host.GetChildViewCount() - 1; i >= 0; i--) {
host.RemoveChildView(host.GetChildViewAt(i));
}
}
void GetPreferredSize() {
pref = layout->GetPreferredSize(&host);
}
gfx::Size pref;
gfx::Rect bounds;
View host;
GridLayout* layout;
};
class GridLayoutAlignmentTest : public testing::Test {
public:
GridLayoutAlignmentTest() :
host(),
v1(gfx::Size(10, 20)),
layout(new GridLayout(&host)) {}
virtual void SetUp() {
}
virtual void TearDown() {
delete layout;
}
virtual void RemoveAll() {
for (int i = host.GetChildViewCount() - 1; i >= 0; i--) {
host.RemoveChildView(host.GetChildViewAt(i));
}
}
void TestAlignment(GridLayout::Alignment alignment, gfx::Rect* bounds) {
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(alignment, alignment, 1, GridLayout::USE_PREF, 0, 0);
layout->StartRow(1, 0);
layout->AddView(&v1);
gfx::Size pref = layout->GetPreferredSize(&host);
EXPECT_EQ(gfx::Size(10, 20), pref);
host.SetBounds(0, 0, 100, 100);
layout->Layout(&host);
*bounds = v1.bounds();
RemoveAll();
}
View host;
SettableSizeView v1;
GridLayout* layout;
};
TEST_F(GridLayoutAlignmentTest, Fill) {
gfx::Rect bounds;
TestAlignment(GridLayout::FILL, &bounds);
EXPECT_EQ(gfx::Rect(0, 0, 100, 100), bounds);
}
TEST_F(GridLayoutAlignmentTest, Leading) {
gfx::Rect bounds;
TestAlignment(GridLayout::LEADING, &bounds);
EXPECT_EQ(gfx::Rect(0, 0, 10, 20), bounds);
}
TEST_F(GridLayoutAlignmentTest, Center) {
gfx::Rect bounds;
TestAlignment(GridLayout::CENTER, &bounds);
EXPECT_EQ(gfx::Rect(45, 40, 10, 20), bounds);
}
TEST_F(GridLayoutAlignmentTest, Trailing) {
gfx::Rect bounds;
TestAlignment(GridLayout::TRAILING, &bounds);
EXPECT_EQ(gfx::Rect(90, 80, 10, 20), bounds);
}
TEST_F(GridLayoutTest, TwoColumns) {
SettableSizeView v1(gfx::Size(10, 20));
SettableSizeView v2(gfx::Size(20, 20));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1);
layout->AddView(&v2);
GetPreferredSize();
EXPECT_EQ(gfx::Size(30, 20), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 10, 20, &v1);
ExpectViewBoundsEquals(10, 0, 20, 20, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, ColSpan1) {
SettableSizeView v1(gfx::Size(100, 20));
SettableSizeView v2(gfx::Size(10, 40));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
1, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1, 2, 1);
layout->StartRow(0, 0);
layout->AddView(&v2);
GetPreferredSize();
EXPECT_EQ(gfx::Size(100, 60), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 100, 20, &v1);
ExpectViewBoundsEquals(0, 20, 10, 40, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, ColSpan2) {
SettableSizeView v1(gfx::Size(100, 20));
SettableSizeView v2(gfx::Size(10, 20));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
1, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1, 2, 1);
layout->StartRow(0, 0);
layout->SkipColumns(1);
layout->AddView(&v2);
GetPreferredSize();
EXPECT_EQ(gfx::Size(100, 40), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 100, 20, &v1);
ExpectViewBoundsEquals(90, 20, 10, 20, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, ColSpan3) {
SettableSizeView v1(gfx::Size(100, 20));
SettableSizeView v2(gfx::Size(10, 20));
SettableSizeView v3(gfx::Size(10, 20));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1, 2, 1);
layout->StartRow(0, 0);
layout->AddView(&v2);
layout->AddView(&v3);
GetPreferredSize();
EXPECT_EQ(gfx::Size(100, 40), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 100, 20, &v1);
ExpectViewBoundsEquals(0, 20, 10, 20, &v2);
ExpectViewBoundsEquals(50, 20, 10, 20, &v3);
RemoveAll();
}
TEST_F(GridLayoutTest, ColSpan4) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING, 0,
GridLayout::USE_PREF, 0, 0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING, 0,
GridLayout::USE_PREF, 0, 0);
SettableSizeView v1(gfx::Size(10, 10));
SettableSizeView v2(gfx::Size(10, 10));
SettableSizeView v3(gfx::Size(25, 20));
layout->StartRow(0, 0);
layout->AddView(&v1);
layout->AddView(&v2);
layout->StartRow(0, 0);
layout->AddView(&v3, 2, 1);
GetPreferredSize();
EXPECT_EQ(gfx::Size(25, 30), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 10, 10, &v1);
ExpectViewBoundsEquals(12, 0, 10, 10, &v2);
ExpectViewBoundsEquals(0, 10, 25, 20, &v3);
RemoveAll();
}
TEST_F(GridLayoutTest, SameSizeColumns) {
SettableSizeView v1(gfx::Size(50, 20));
SettableSizeView v2(gfx::Size(10, 10));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
c1->LinkColumnSizes(0, 1, -1);
layout->StartRow(0, 0);
layout->AddView(&v1);
layout->AddView(&v2);
gfx::Size pref = layout->GetPreferredSize(&host);
EXPECT_EQ(gfx::Size(100, 20), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 50, 20, &v1);
ExpectViewBoundsEquals(50, 0, 10, 10, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, HorizontalResizeTest1) {
SettableSizeView v1(gfx::Size(50, 20));
SettableSizeView v2(gfx::Size(10, 10));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::FILL, GridLayout::LEADING,
1, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1);
layout->AddView(&v2);
host.SetBounds(0, 0, 110, 20);
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 100, 20, &v1);
ExpectViewBoundsEquals(100, 0, 10, 10, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, HorizontalResizeTest2) {
SettableSizeView v1(gfx::Size(50, 20));
SettableSizeView v2(gfx::Size(10, 10));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::FILL, GridLayout::LEADING,
1, GridLayout::USE_PREF, 0, 0);
c1->AddColumn(GridLayout::TRAILING, GridLayout::LEADING,
1, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1);
layout->AddView(&v2);
host.SetBounds(0, 0, 120, 20);
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 80, 20, &v1);
ExpectViewBoundsEquals(110, 0, 10, 10, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, TestVerticalResize1) {
SettableSizeView v1(gfx::Size(50, 20));
SettableSizeView v2(gfx::Size(10, 10));
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::FILL, GridLayout::FILL,
1, GridLayout::USE_PREF, 0, 0);
layout->StartRow(1, 0);
layout->AddView(&v1);
layout->StartRow(0, 0);
layout->AddView(&v2);
GetPreferredSize();
EXPECT_EQ(gfx::Size(50, 30), pref);
host.SetBounds(0, 0, 50, 100);
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 50, 90, &v1);
ExpectViewBoundsEquals(0, 90, 50, 10, &v2);
RemoveAll();
}
TEST_F(GridLayoutTest, Insets) {
SettableSizeView v1(gfx::Size(10, 20));
ColumnSet* c1 = layout->AddColumnSet(0);
layout->SetInsets(1, 2, 3, 4);
c1->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(&v1);
GetPreferredSize();
EXPECT_EQ(gfx::Size(16, 24), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(2, 1, 10, 20, &v1);
RemoveAll();
}
TEST_F(GridLayoutTest, FixedSize) {
layout->SetInsets(2, 2, 2, 2);
views::ColumnSet* set = layout->AddColumnSet(0);
int column_count = 4;
int title_width = 100;
int row_count = 2;
int pref_width = 10;
int pref_height = 20;
for (int i = 0; i < column_count; ++i) {
set->AddColumn(views::GridLayout::CENTER,
views::GridLayout::CENTER,
0,
views::GridLayout::FIXED,
title_width,
title_width);
}
for (int row = 0; row < row_count; ++row) {
layout->StartRow(0, 0);
for (int col = 0; col < column_count; ++col) {
layout->AddView(new SettableSizeView(gfx::Size(pref_width, pref_height)));
}
}
layout->Layout(&host);
for (int i = 0; i < column_count; ++i) {
for (int row = 0; row < row_count; ++row) {
View* view = host.GetChildViewAt(row * column_count + i);
ExpectViewBoundsEquals(
2 + title_width * i + (title_width - pref_width) / 2,
2 + pref_height * row,
pref_width,
pref_height, view);
}
}
GetPreferredSize();
EXPECT_EQ(gfx::Size(column_count * title_width + 4,
row_count * pref_height + 4), pref);
}
TEST_F(GridLayoutTest, RowSpanWithPaddingRow) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(views::GridLayout::CENTER,
views::GridLayout::CENTER,
0,
views::GridLayout::FIXED,
10,
10);
layout->StartRow(0, 0);
layout->AddView(new SettableSizeView(gfx::Size(10, 10)), 1, 2);
layout->AddPaddingRow(0, 10);
}
TEST_F(GridLayoutTest, RowSpan) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(views::GridLayout::LEADING,
views::GridLayout::LEADING,
0,
views::GridLayout::USE_PREF,
0,
0);
set->AddColumn(views::GridLayout::LEADING,
views::GridLayout::LEADING,
0,
views::GridLayout::USE_PREF,
0,
0);
layout->StartRow(0, 0);
layout->AddView(new SettableSizeView(gfx::Size(20, 10)));
layout->AddView(new SettableSizeView(gfx::Size(20, 40)), 1, 2);
layout->StartRow(1, 0);
views::View* s3 = new SettableSizeView(gfx::Size(20, 10));
layout->AddView(s3);
GetPreferredSize();
EXPECT_EQ(gfx::Size(40, 40), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 10, 20, 10, s3);
}
TEST_F(GridLayoutTest, RowSpan2) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0,GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
layout->AddView(new SettableSizeView(gfx::Size(20, 20)));
views::View* s3 = new SettableSizeView(gfx::Size(64, 64));
layout->AddView(s3, 1, 3);
layout->AddPaddingRow(0, 10);
layout->StartRow(0, 0);
layout->AddView(new SettableSizeView(gfx::Size(10, 20)));
GetPreferredSize();
EXPECT_EQ(gfx::Size(84, 64), pref);
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(20, 0, 64, 64, s3);
}
TEST_F(GridLayoutTest, FixedViewWidth) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0,GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
View* view = new SettableSizeView(gfx::Size(30, 40));
layout->AddView(view, 1, 1, GridLayout::LEADING, GridLayout::LEADING, 10, 0);
GetPreferredSize();
EXPECT_EQ(10, pref.width());
EXPECT_EQ(40, pref.height());
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 10, 40, view);
}
TEST_F(GridLayoutTest, FixedViewHeight) {
views::ColumnSet* set = layout->AddColumnSet(0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0, GridLayout::USE_PREF, 0, 0);
set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
0,GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
View* view = new SettableSizeView(gfx::Size(30, 40));
layout->AddView(view, 1, 1, GridLayout::LEADING, GridLayout::LEADING, 0, 10);
GetPreferredSize();
EXPECT_EQ(30, pref.width());
EXPECT_EQ(10, pref.height());
host.SetBounds(0, 0, pref.width(), pref.height());
layout->Layout(&host);
ExpectViewBoundsEquals(0, 0, 30, 10, view);
}