104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
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#include "FontRenderer.h"
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#include "Common.h"
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#include <SDL.h>
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#include <SDL_gfxPrimitives.h>
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FontRenderer::FontRenderer()
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{
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this->setColor((SDL_Color) {0,0,0,0}, (SDL_Color){255,255,255,0}, 1);
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}
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FontRenderer::~FontRenderer()
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{
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////std::cerr << "Freeing memory in FontRenderer is not yet implemented\n";
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}
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int FontRenderer::loadFont(std::string filename, std::string fontname, int pointsize)
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{
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TTF_Font *font = TTF_OpenFont(filename.c_str(), pointsize);
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if ( font == NULL ) {
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////std::cerr << "Unable to load font " << filename << "\n";
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return 1;
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}
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this->loadedFonts[fontname][pointsize] = font;
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return 0;
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}
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void FontRenderer::setColor(SDL_Color textColor, SDL_Color bgColor, int alpha)
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{
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//std::cerr << "FontRenderer::setColor (" << textColor.r << " : " << textColor.g << " : " << textColor.b << ") "
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//<< " ( " << bgColor.r << " : " << bgColor.g << " : " << bgColor.b << " ) alpha " << alpha << "\n";
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this->textColor = textColor;
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this->bgColor = bgColor;
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this->alpha = alpha;
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}
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SDL_Rect FontRenderer::renderString(std::string text,
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SDL_Surface *dest,
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std::string fontname,
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Vector position,
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int pointsize)
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{
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SDL_Rect destrect;
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SDL_Surface *surface;
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SDL_Color foregroundColor, backgroundColor;
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TTF_Font *font;
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SDL_Rect blankrect;
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int plainTextWidth = 0;
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if ( dest == NULL ) {
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return blankrect;
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}
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if ( fontname == "" ) {
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plainTextWidth = text.size() * 8;
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if ( position.x == -1 )
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position.x = (dest->w/2) - (plainTextWidth/2);
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if ( position.y == -1 )
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position.y = (dest->h/2) - 8;
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//std::cerr << "Rendering (plain text) " << text << " at " << position.x << " x " << position.y << "\n";
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stringRGBA(dest, (int)position.x, (int)position.y, text.c_str(),
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this->textColor.r, this->textColor.g, this->textColor.b, this->alpha);
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return blankrect;
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}
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////std::cerr << "Rendering (true type) " << text << " at " << position.x << " x " << position.y << "\n";
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if ( this->loadedFonts.count(fontname) == 1 ) {
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if ( this->loadedFonts[fontname].count(pointsize) == 1 ) {
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////std::cerr << "Found font..";
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font = this->loadedFonts[fontname][pointsize];
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} else {
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////std::cerr << "No font found for (point size) 20\n";
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return blankrect;
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}
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} else {
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////std::cerr << "No font found for (" << fontname << ")\n";
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return blankrect;
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}
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surface = TTF_RenderUTF8_Shaded(font, text.c_str(), this->textColor, this->bgColor);
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if (surface == NULL)
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{
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////std::cerr << "Couldn't create String " << text << ":" << SDL_GetError() << "\n";
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return blankrect;
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}
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/* Blit the entire surface to the screen */
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destrect.x = (position.x == -1 ? (dest->w - surface->w) / 2 : (Sint16) position.x);
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destrect.y = (position.y == -1 ? (dest->h - surface->h) / 2 : (Sint16) position.y);
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destrect.w = surface->w;
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destrect.h = surface->h;
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////std::cerr << "FontRenderer::renderString this->alpha " << this->alpha << "\n";
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if ( this->alpha == 1 ) {
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SDL_SetColorKey(surface, SDL_SRCCOLORKEY,
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SDL_MapRGBA(surface->format, this->bgColor.r, this->bgColor.g, this->bgColor.b, 0) );
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}
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SDL_BlitSurface(surface, NULL, dest, &destrect);
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/* Free the generated string image */
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SDL_FreeSurface(surface);
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return destrect;
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}
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