gigawidgets/png_8hpp_source.html

#pragma once


// Comment this out to disable PNG support.

#define IMAGE_SUPPORT_PNG


#include "../image_file.hpp"


#ifdef IMAGE_SUPPORT_PNG


namespace ui {


struct Png : public ImageFile {

    uint8_t transparencyThreshold = 128;


    using ImageFile::ImageFile;


    void renderAt(const Coords &coords, const shader_t &shader = 0) const override;

    Size getSize() const override;


    bool isInterlaced() const;

};


} // namespace ui


#endif

ui::shader_t
shader_animated_t shader_t
A pixel shader that may or may not update based on the current time.
Definition renderable.hpp:48

ui::Coords
A struct for storing the pixel coordinates of various UI elements.
Definition coords.hpp:17

ui::ImageFile
The common interface for images read from raw data.
Definition image_file.hpp:23

ui::ImageFile::ImageFile
ImageFile(uint8_t *const bytes, size_t length)
Constructor.

ui::Png
A renderable for PNG encoded image data.
Definition png.hpp:18

ui::Png::transparencyThreshold
uint8_t transparencyThreshold
The minimum alpha value to consider fully opaque.
Definition png.hpp:26

ui::Png::getSize
Size getSize() const override
Get the size of the renderable.

ui::Png::isInterlaced
bool isInterlaced() const
Check if this PNG image is interlaced.

ui::Png::renderAt
void renderAt(const Coords &coords, const shader_t &shader=0) const override
Display the renderable directly onto the screen.

ui::Size
A struct that holds the number of pixels that a widget would take up on the screen.
Definition size.hpp:17