GuiImage.cpp

/****************************************************************************
 * libgui
 * Daryl Borth 2009-2026
 * GuiImage.cpp
 ***************************************************************************/
 
#include "Gui.h"
#include <malloc.h>
 
GuiImage::GuiImage()
{
    texture = nullptr;
    ownsTexture = false;
    width = 0;
    height = 0;
    imageangle = 0;
    tile = -1;
    stripe = 0;
    imgType = IMAGE::TEXTURE;
}
 
GuiImage::GuiImage(GuiImageData * img)
{
    texture = nullptr;
    width = 0;
    height = 0;
 
    if(img)
    {
        texture = img->getTexture();
        width = img->getWidth();
        height = img->getHeight();
    }
 
    ownsTexture = false;
    imageangle = 0;
    tile = -1;
    stripe = 0;
    imgType = IMAGE::TEXTURE;
}
 
GuiImage::GuiImage(uint8_t * tex, int w, int h)
{
    texture = tex;
    ownsTexture = false;
    width = w;
    height = h;
    imageangle = 0;
    tile = -1;
    stripe = 0;
    imgType = IMAGE::TEXTURE;
}
 
GuiImage::GuiImage(int w, int h, PixelColor c)
{
    texture = nullptr;
    ownsTexture = true;
    width = w;
    height = h;
    imageangle = 0;
    tile = -1;
    stripe = 0;
    imgType = IMAGE::COLOR;
    baseColor = c;
}
 
GuiImage::~GuiImage()
{
    if(ownsTexture && texture)
    {
        platform->getVideo()->getImageRenderer()->destroyTexture(texture);
        texture = nullptr;
    }
}
 
void GuiImage::setImage(GuiImageData * img)
{
    if(ownsTexture && texture)
    {
        platform->getVideo()->getImageRenderer()->destroyTexture(texture);
        texture = nullptr;
    }
 
    texture = nullptr;
    ownsTexture = false;
    width = 0;
    height = 0;
    if(img)
    {
        texture = img->getTexture();
        width = img->getWidth();
        height = img->getHeight();
    }
    imgType = IMAGE::TEXTURE;
}
 
void GuiImage::setImage(uint8_t * img, int w, int h)
{
    if(ownsTexture && texture)
    {
        platform->getVideo()->getImageRenderer()->destroyTexture(texture);
        texture = nullptr;
    }
 
    if(img) {
        texture = platform->getVideo()->getImageRenderer()->createTexture(w, h);
        platform->getVideo()->getImageRenderer()->loadTextureData(texture, img, w, h);
        ownsTexture = true;
        width = w;
        height = h;
    }
    else {
        texture = nullptr;
        ownsTexture = false;
        width = 0;
        height = 0;
    }
 
    imgType = IMAGE::TEXTURE;
}
 
void GuiImage::setTexture(uint8_t * tex, int w, int h)
{
    if(ownsTexture && texture)
    {
        platform->getVideo()->getImageRenderer()->destroyTexture(texture);
        texture = nullptr;
    }
 
    texture = tex;
    ownsTexture = false;
    width = w;
    height = h;
    imgType = IMAGE::TEXTURE;
}
 
void GuiImage::setAngle(float a)
{
    imageangle = a;
}
 
void GuiImage::setTile(int t)
{
    tile = t;
}
 
void GuiImage::setStripe(int s)
{
    stripe = s;
}
 
void GuiImage::draw()
{
    if(!this->isVisible() || tile == 0)
        return;
 
    float currScaleX = this->getScaleX();
    float currScaleY = this->getScaleY();
    int currLeft = this->getLeft();
    int thisTop = this->getTop();
    int alpha = this->getAlpha();
 
    if(imgType == IMAGE::COLOR)
    {
        PixelColor c = baseColor;
        c.a = alpha;
        platform->getVideo()->getImageRenderer()->drawRectangle(currLeft, thisTop, width, height, c);
    }
    else if(texture)
    {
        if(tile > 0)
        {
            for(int i=0; i<tile; ++i)
                platform->getVideo()->getImageRenderer()->drawTexture(texture, currLeft+width*i, thisTop, width, height, imageangle, currScaleX, currScaleY, alpha);
        }
        else
        {
            platform->getVideo()->getImageRenderer()->drawTexture(texture, currLeft, thisTop, width, height, imageangle, currScaleX, currScaleY, alpha);
        }
    }
 
    if(stripe > 0)
    {
        int thisHeight = this->getHeight();
        int thisWidth = this->getWidth();
        for(int y=0; y < thisHeight; y+=6)
            platform->getVideo()->getImageRenderer()->drawRectangle(currLeft, thisTop+y, thisWidth, 3, (PixelColor){0, 0, 0, (uint8_t)stripe});
    }
 
    this->updateEffects();
}