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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef MOUSECURSOR_H
#define MOUSECURSOR_H
#include <string>
#include <vector>
class CBitmap;
class IHwCursor;
class CMouseCursor {
public:
enum HotSpot {TopLeft, Center};
public:
static CMouseCursor New(const std::string& name, HotSpot hs) { return (CMouseCursor(name, hs)); }
CMouseCursor(); // null-cursor
CMouseCursor(const CMouseCursor& mc) = delete;
CMouseCursor(CMouseCursor&& mc) { *this = std::move(mc); }
~CMouseCursor();
CMouseCursor& operator = (const CMouseCursor& mc) = delete;
CMouseCursor& operator = (CMouseCursor&& mc) {
images = std::move(mc.images);
frames = std::move(mc.frames);
hwCursor = mc.hwCursor;
mc.hwCursor = nullptr;
hotSpot = mc.hotSpot;
animTime = mc.animTime;
animPeriod = mc.animPeriod;
currentFrame = mc.currentFrame;
xmaxsize = mc.xmaxsize;
ymaxsize = mc.ymaxsize;
xofs = mc.xofs;
yofs = mc.yofs;
hwValid = mc.hwValid;
return *this;
}
void Update();
void Draw(int x, int y, float scale) const; // software cursor draw
void DrawQuad(int x, int y) const; // draw command queue icon
void BindTexture() const; // software mouse cursor
void BindHwCursor() const; // hardware mouse cursor
int GetMaxSizeX() const { return xmaxsize; }
int GetMaxSizeY() const { return ymaxsize; }
bool IsHWValid() const { return hwValid; }
bool IsValid() const { return (!frames.empty()); }
protected:
struct ImageData {
unsigned int texture;
int xOrigSize;
int yOrigSize;
int xAlignedSize;
int yAlignedSize;
};
struct FrameData {
FrameData(const ImageData& _image, float time)
: image(_image), length(time), startTime(0.0f), endTime(0.0f) {}
ImageData image;
float length;
float startTime;
float endTime;
};
protected:
CMouseCursor(const std::string& name, HotSpot hs);
bool LoadCursorImage(const std::string& name, struct ImageData& image);
bool BuildFromSpecFile(const std::string& name);
bool BuildFromFileNames(const std::string& name, int lastFrame);
protected:
std::vector<ImageData> images;
std::vector<FrameData> frames;
IHwCursor* hwCursor; // hardware cursor
HotSpot hotSpot;
float animTime;
float animPeriod;
int currentFrame;
int xmaxsize;
int ymaxsize;
int xofs; // describes where the center of the cursor is,
int yofs; // based on xmaxsize, ymaxsize, and the hotspot
bool hwValid; // if hardware cursor is valid
};
static const float minFrameLength = 0.010f; // seconds
static const float defFrameLength = 0.100f; // seconds
#endif /* MOUSECURSOR_H */
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