vladislavbelov
4d77de66d4
Initially the GetDefaultGuiMatrix function was added in4113aa0a36and renamed in04c63a4093. This was SVN commit r27111.
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
/* Copyright (C) 2022 Wildfire Games.
|
|
* This file is part of 0 A.D.
|
|
*
|
|
* 0 A.D. is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 0 A.D. is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef INCLUDED_CANVAS2D
|
|
#define INCLUDED_CANVAS2D
|
|
|
|
#include "graphics/Texture.h"
|
|
#include "maths/Vector2D.h"
|
|
#include "renderer/backend/IDeviceCommandContext.h"
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
class CRect;
|
|
class CTextRenderer;
|
|
|
|
struct CColor;
|
|
|
|
// Encapsulates 2D drawing functionality to hide and optimize
|
|
// low level API calls.
|
|
class CCanvas2D
|
|
{
|
|
public:
|
|
CCanvas2D(
|
|
const uint32_t widthInPixels, const uint32_t heightInPixels, const float scale,
|
|
Renderer::Backend::IDeviceCommandContext* deviceCommandContext);
|
|
~CCanvas2D();
|
|
|
|
CCanvas2D(const CCanvas2D&) = delete;
|
|
CCanvas2D& operator=(const CCanvas2D&) = delete;
|
|
CCanvas2D(CCanvas2D&&) = delete;
|
|
CCanvas2D& operator=(CCanvas2D&&) = delete;
|
|
|
|
/**
|
|
* Draws a line by the given points with the width and color.
|
|
*/
|
|
void DrawLine(
|
|
const std::vector<CVector2D>& points,
|
|
const float width, const CColor& color);
|
|
|
|
/**
|
|
* Draws the rect filled with the color.
|
|
*/
|
|
void DrawRect(const CRect& rect, const CColor& color);
|
|
|
|
/**
|
|
* Draws a piece of the texture from the source rect into the
|
|
* destination rect. The result color is set by the following formula:
|
|
* TEXTURE_COLOR * COLOR_MULTIPLY + COLOR_ADD
|
|
* The texture color is blended with its own grayscale version according to
|
|
* the grayscale factor.
|
|
*/
|
|
void DrawTexture(
|
|
const CTexturePtr& texture, const CRect& destination, const CRect& source,
|
|
const CColor& multiply, const CColor& add, const float grayscaleFactor);
|
|
|
|
/**
|
|
* A simpler version of the previous one, draws the texture into the
|
|
* destination rect without color modifications.
|
|
*/
|
|
void DrawTexture(const CTexturePtr& texture, const CRect& destination);
|
|
|
|
/**
|
|
* A similar to the original one, draws the texture into the
|
|
* destination rect but rotates it first around the origin point by angle
|
|
* radians (a positive angle denotes a clockwise rotation).
|
|
*/
|
|
void DrawRotatedTexture(
|
|
const CTexturePtr& texture, const CRect& destination, const CRect& source,
|
|
const CColor& multiply, const CColor& add, const float grayscaleFactor,
|
|
const CVector2D& origin, const float angle);
|
|
|
|
/**
|
|
* Draws a text using canvas materials.
|
|
*/
|
|
void DrawText(CTextRenderer& textRenderer);
|
|
|
|
/**
|
|
* Unbinds all binded resources and clears caches. Frequent calls might
|
|
* affect performance. Useful to call a custom rendering code.
|
|
*/
|
|
void Flush();
|
|
|
|
private:
|
|
class Impl;
|
|
std::unique_ptr<Impl> m;
|
|
};
|
|
|
|
#endif // INCLUDED_CANVAS2D
|