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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef GUI_H
#define GUI_H
#include <list>
#include <slimsig/connection.h>
#include "System/Input/InputHandler.h"
union SDL_Event;
namespace Shader {
struct IProgramObject;
}
namespace agui
{
class GuiElement;
class Gui
{
public:
Gui();
~Gui();
void Clean();
void Draw();
void AddElement(GuiElement*, bool asBackground = false);
/// deletes the element on the next draw
void RmElement(GuiElement*);
void UpdateScreenGeometry(int screenx, int screeny, int screenOffsetX, int screenOffsetY);
bool MouseOverElement(const GuiElement*, int x, int y) const;
void SetColor(float r, float g, float b, float a);
void SetColor(const float* v) { SetColor(v[0], v[1], v[2], v[3]); }
enum DrawMode {
COLOR = 0,
TEXTURE = 1,
FONT = 2,
};
void SetDrawMode(DrawMode newMode);
Shader::IProgramObject* GetShader() { return shader; }
private:
bool HandleEvent(const SDL_Event& ev);
struct GuiItem {
GuiItem(GuiElement* el, bool back) : element(el), asBackground(back) {}
GuiElement* element;
bool asBackground;
};
std::list<GuiItem> elements;
std::list<GuiItem> toBeRemoved;
std::list<GuiItem> toBeAdded;
DrawMode currentDrawMode = DrawMode::COLOR;
Shader::IProgramObject* shader;
InputHandler::SignalType::connection_type inputCon;
};
extern Gui* gui;
}
#endif
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