/****************************************************************************
 * Copyright (C) 2015 Dimok
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ****************************************************************************/
#include <SDL2/SDL_image.h>
#include <gui/GuiImage.h>
#include <gui/system/libgui_log.h>

GuiImage::GuiImage(GuiTextureData *texture) {
    setTexture(texture);
}

GuiImage::GuiImage(SDL_Color color, float width, float height) {
    this->color = color;
    this->setSize(width, height);
}

GuiImage::~GuiImage() {
    if (this->texture && freeTextureData) {
        delete this->texture;
    }
}

void GuiImage::draw(Renderer *renderer) {
    if (!this->isVisible()) {
        return;
    }

    SDL_Rect rect;
    rect.x = (int) getLeft();
    rect.y = (int) getTop();
    rect.w = (int) (getScaleX() * getWidth());
    rect.h = (int) (getScaleY() * getHeight());

    if (texture) {
        texture->draw(renderer, rect, getAngle());
    } else {
        // copy the texture to the rendering context
        SDL_BlendMode mode;
        SDL_GetRenderDrawBlendMode(renderer->getRenderer(), &mode);

        // adjust blend mode
        if(blendMode != mode){
            SDL_SetRenderDrawBlendMode(renderer->getRenderer(), blendMode);
        }

        SDL_SetRenderDrawColor(renderer->getRenderer(), color.r, color.g, color.b, color.a);
        SDL_RenderFillRect(renderer->getRenderer(), &rect);
        if(getAngle() != 0.0f){
            LG_Log("Drawing a rotated rect is not supported yet");
        }
        
        if(blendMode != mode){
            SDL_SetRenderDrawBlendMode(renderer->getRenderer(), mode);
        }
    }
}

void GuiImage::setTexture(GuiTextureData *tex) {
    if (tex) {
        if(this->texture && freeTextureData){
            delete this->texture;
        }
        this->texture = tex;
        this->setSize(tex->getWidth(), tex->getHeight());
    }
}

int GuiImage::setBlendMode(SDL_BlendMode blendMode) {
    this->blendMode = blendMode;
    return this->texture ? this->texture->setBlendMode(blendMode) : 0;
}