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// Copyright (c) 2012 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 "ui/base/layout.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/test/views_test_base.h"
namespace {
gfx::ImageSkia CreateTestImage(int width, int height) {
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height);
bitmap.allocPixels();
return gfx::ImageSkia(bitmap);
}
} // namespace
namespace views {
typedef ViewsTestBase ImageButtonTest;
TEST_F(ImageButtonTest, Basics) {
ImageButton button(NULL);
// Our image to paint starts empty.
EXPECT_TRUE(button.GetImageToPaint().isNull());
// Without a theme, buttons are 16x14 by default.
EXPECT_EQ("16x14", button.GetPreferredSize().ToString());
// We can set a preferred size when we have no image.
button.SetPreferredSize(gfx::Size(5, 15));
EXPECT_EQ("5x15", button.GetPreferredSize().ToString());
// Set a normal image.
gfx::ImageSkia normal_image = CreateTestImage(10, 20);
button.SetImage(CustomButton::BS_NORMAL, &normal_image);
// Image uses normal image for painting.
EXPECT_FALSE(button.GetImageToPaint().isNull());
EXPECT_EQ(10, button.GetImageToPaint().width());
EXPECT_EQ(20, button.GetImageToPaint().height());
// Preferred size is the normal button size.
EXPECT_EQ("10x20", button.GetPreferredSize().ToString());
// Set a pushed image.
gfx::ImageSkia pushed_image = CreateTestImage(11, 21);
button.SetImage(CustomButton::BS_PUSHED, &pushed_image);
// By convention, preferred size doesn't change, even though pushed image
// is bigger.
EXPECT_EQ("10x20", button.GetPreferredSize().ToString());
// We're still painting the normal image.
EXPECT_FALSE(button.GetImageToPaint().isNull());
EXPECT_EQ(10, button.GetImageToPaint().width());
EXPECT_EQ(20, button.GetImageToPaint().height());
// Set an overlay image.
gfx::ImageSkia overlay_image = CreateTestImage(12, 22);
button.SetOverlayImage(&overlay_image);
EXPECT_EQ(12, button.overlay_image_.width());
EXPECT_EQ(22, button.overlay_image_.height());
// By convention, preferred size doesn't change, even though pushed image
// is bigger.
EXPECT_EQ("10x20", button.GetPreferredSize().ToString());
// We're still painting the normal image.
EXPECT_FALSE(button.GetImageToPaint().isNull());
EXPECT_EQ(10, button.GetImageToPaint().width());
EXPECT_EQ(20, button.GetImageToPaint().height());
// Reset the overlay image.
button.SetOverlayImage(NULL);
EXPECT_TRUE(button.overlay_image_.isNull());
}
TEST_F(ImageButtonTest, ImagePositionWithBorder) {
ImageButton button(NULL);
gfx::ImageSkia image = CreateTestImage(20, 30);
button.SetImage(CustomButton::BS_NORMAL, &image);
// The image should be painted at the top-left corner.
EXPECT_EQ(gfx::Point().ToString(),
button.ComputeImagePaintPosition(image).ToString());
button.set_border(views::Border::CreateEmptyBorder(10, 5, 0, 0));
EXPECT_EQ(gfx::Point(5, 10).ToString(),
button.ComputeImagePaintPosition(image).ToString());
button.set_border(NULL);
button.SetBounds(0, 0, 50, 50);
EXPECT_EQ(gfx::Point().ToString(),
button.ComputeImagePaintPosition(image).ToString());
button.SetImageAlignment(ImageButton::ALIGN_CENTER,
ImageButton::ALIGN_MIDDLE);
EXPECT_EQ(gfx::Point(15, 10).ToString(),
button.ComputeImagePaintPosition(image).ToString());
button.set_border(views::Border::CreateEmptyBorder(10, 10, 0, 0));
EXPECT_EQ(gfx::Point(20, 15).ToString(),
button.ComputeImagePaintPosition(image).ToString());
}
} // namespace views
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