class Image;
/**
* 9 images defining a rectangle. 4 corners, 4 sides and a middle area. The
* topology is as follows:
*
*
* !-----!-----------------!-----!
* ! 0 ! 1 ! 2 !
* !-----!-----------------!-----!
* ! 3 ! 4 ! 5 !
* !-----!-----------------!-----!
* ! 6 ! 7 ! 8 !
* !-----!-----------------!-----!
*
*
* Sections 0, 2, 6 and 8 will remain as is. 1, 3, 4, 5 and 7 will be
* repeated to fit the size of the widget.
*/
class ImageRect
{
public:
enum ImagePosition
{
UPPER_LEFT = 0,
UPPER_CENTER = 1,
UPPER_RIGHT = 2,
LEFT = 3,
CENTER = 4,
RIGHT = 5,
LOWER_LEFT = 6,
LOWER_CENTER = 7,
LOWER_RIGHT = 8
};
Image *grid[9];
void setAlpha(float alpha);
};
/**
* A central point of control for graphics.
*/
class Graphics : public gcn::Graphics
{
public:
Graphics() = default;
/**
* Sets whether vertical refresh syncing is enabled.
*/
virtual void setVSync(bool sync) = 0;
/**
* Called when the window size or scale has changed.
*/
virtual void updateSize(int width, int height, float scale);
using gcn::Graphics::drawImage;
/**
* Blits an image onto the screen.
*
* @return true if the image was blitted properly
* false otherwise.
*/
bool drawImage(Image *image, int x, int y);
/**
* Blits an image onto the screen.
*
* @return true if the image was blitted properly
* false otherwise.
*/
bool drawImageF(Image *image, float x, float y);
/**
* Draws a rescaled version of the image.
*/
virtual bool drawRescaledImage(Image *image, int srcX, int srcY,
int dstX, int dstY,
int width, int height,
int desiredWidth, int desiredHeight,
bool useColor = false) = 0;
/**
* Draws a rescaled version of the image.
*/
virtual bool drawRescaledImageF(Image *image, int srcX, int srcY,
float dstX, float dstY,
int width, int height,
float desiredWidth, float desiredHeight,
bool useColor = false);
/**
* Blits an image onto the screen.
*
* @return true if the image was blitted properly
* false otherwise.
*/
virtual bool drawImage(Image *image,
int srcX, int srcY,
int dstX, int dstY,
int width, int height,
bool useColor = false);
/**
* Blits an image onto the screen.
*
* @return true if the image was blitted properly
* false otherwise.
*/
virtual bool drawImageF(Image *image,
int srcX, int srcY,
float dstX, float dstY,
int width, int height,
bool useColor = false);
virtual void drawImagePattern(Image *image,
int x, int y,
int w, int h);
/**
* Draw a pattern based on a rescaled version of the given image...
*/
virtual void drawRescaledImagePattern(Image *image,
int x, int y,
int w, int h,
int scaledWidth,
int scaledHeight) = 0;
/**
* Draws a rectangle using images. 4 corner images, 4 side images and 1
* image for the inside.
*/
void drawImageRect(int x, int y, int w, int h,
Image *topLeft, Image *topRight,
Image *bottomLeft, Image *bottomRight,
Image *top, Image *right,
Image *bottom, Image *left,
Image *center);
/**
* Draws a rectangle using images. 4 corner images, 4 side images and 1
* image for the inside.
*/
void drawImageRect(int x, int y, int w, int h,
const ImageRect &imgRect);
/**
* Draws a rectangle using images. 4 corner images, 4 side images and 1
* image for the inside.
*/
void drawImageRect(const gcn::Rectangle &area,
const ImageRect &imgRect)
{
drawImageRect(area.x, area.y, area.width, area.height, imgRect);
}
/**
* Updates the screen. This is done by either copying the buffer to the
* screen or swapping pages.
*/
virtual void updateScreen() = 0;
/**
* Returns the logical width of the screen.
*/
int getWidth() const { return mWidth; }
/**
* Returns the logical height of the screen.
*/
int getHeight() const { return mHeight; }
/**
* Returns the graphics scale.
*/
float getScale() const { return mScale; }
/**
* Converts a window coordinate to a logical coordinate. Used for
* converting mouse coordinates.
*/
virtual void windowToLogical(int windowX, int windowY,
float &logicalX, float &logicalY) const = 0;
void _beginDraw() override;
void _endDraw() override;
/**
* Takes a screenshot and returns it as SDL surface.
*/
virtual SDL_Surface *getScreenshot() = 0;
gcn::Font *getFont() const { return mFont; }
void drawImage(const gcn::Image *image,
int srcX, int srcY,
int dstX, int dstY,
int width, int height) override {} // not used
void setColor(const gcn::Color &color) override
{
mColor = color;
}
const gcn::Color &getColor() const final
{
return mColor;
}
protected:
int mWidth = 0;
int mHeight = 0;
float mScale = 1.0f;
gcn::Color mColor;
};
extern Graphics *graphics;
#endif