15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#ifndef UI_GFX_GEOMETRY_SIZE_BASE_H_ 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#define UI_GFX_GEOMETRY_SIZE_BASE_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "ui/gfx/gfx_export.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gfx { 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A size has width and height values. 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<typename Class, typename Type> 144e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)class GFX_EXPORT SizeBase { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Type width() const { return width_; } 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Type height() const { return height_; } 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Type GetArea() const { return width_ * height_; } 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void SetSize(Type width, Type height) { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) set_width(width); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) set_height(height); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Enlarge(Type width, Type height) { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) set_width(width_ + width); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) set_height(height_ + height); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void set_width(Type width) { 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) width_ = width < 0 ? 0 : width; 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void set_height(Type height) { 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) height_ = height < 0 ? 0 : height; 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 38868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void SetToMin(const Class& other) { 39868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) width_ = width_ <= other.width_ ? width_ : other.width_; 40868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) height_ = height_ <= other.height_ ? height_ : other.height_; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 43868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void SetToMax(const Class& other) { 44868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) width_ = width_ >= other.width_ ? width_ : other.width_; 45868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) height_ = height_ >= other.height_ ? height_ : other.height_; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool IsEmpty() const { 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return (width_ == 0) || (height_ == 0); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SizeBase(Type width, Type height) 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : width_(width < 0 ? 0 : width), 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) height_(height < 0 ? 0 : height) { 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Destructor is intentionally made non virtual and protected. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Do not make this public. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~SizeBase() {} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Type width_; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Type height_; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gfx 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif // UI_GFX_GEOMETRY_SIZE_BASE_H_ 70