mirror of
git://projects.qi-hardware.com/gmenu2x.git
synced 2024-11-26 00:20:38 +02:00
Drop the bitmap font; use a TTF font instead
This allows to display UTF-8 characters, and is as such a good step towards full internationalization.
This commit is contained in:
Paul Cercueil
parent
eb63294231
commit
46386a2054
@ -21,6 +21,8 @@ AC_ARG_WITH(sdl-gfx-prefix,
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AC_CHECK_LIB(SDL_gfx, rotozoomSurfaceXY,,check_sdl_gfx="no")
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AC_CHECK_LIB(SDL_ttf, TTF_OpenFont)
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# Check for libpng
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AC_CHECK_LIB(png, png_read_image,,check_png="no")
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239
src/asfont.cpp
239
src/asfont.cpp
@ -1,150 +1,67 @@
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#include "asfont.h"
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#include "imageio.h"
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#include "debug.h"
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#include "surface.h"
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#include "utilities.h"
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#include <algorithm>
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#include <cassert>
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#include <cstring>
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#include <SDL.h>
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#include <SDL_ttf.h>
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#include <vector>
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#define SFONTPLUS_CHARSET "!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¿ÀÁÈÉÌÍÒÓÙÚÝÄËÏÖÜŸÂÊÎÔÛÅÃÕÑÆÇČĎĚĽĹŇÔŘŔŠŤŮŽàáèéìíòóùúýäëïöüÿâêîôûåãõñæçčďěľĺňôřŕšťžůðßÐÞþАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдеёжзийклмнопрстуфхцчшщъыьэюяØøąćęłńśżźĄĆĘŁŃŚŻŹ"
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/* TODO: Let the theme choose the font and font size */
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#define TTF_FONT "/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf"
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#define TTF_FONT_SIZE 12
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ASFont::ASFont(const std::string &fontImagePath)
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: characters(SFONTPLUS_CHARSET)
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using namespace std;
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ASFont::ASFont(const string &path)
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{
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surface = loadPNG(fontImagePath);
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if (!surface) {
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if (!TTF_WasInit() && TTF_Init() < 0) {
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ERROR("Unable to init SDL_ttf library\n");
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return;
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}
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assert(surface->format->BytesPerPixel == 4);
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SDL_LockSurface(surface);
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// Determine character widths.
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Uint32 pink = SDL_MapRGB(surface->format, 255, 0, 255);
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Uint32 *topLine = static_cast<Uint32 *>(surface->pixels);
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const unsigned width = surface->w;
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unsigned x = 0;
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unsigned c = 0;
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while (c < characters.length()) {
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while (x < width && topLine[x] != pink) x++;
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unsigned startx = x;
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x++;
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while (x < width && topLine[x] == pink) x++;
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charpos.push_back(startx);
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charpos.push_back(x);
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if (c > 0 && utf8Code(characters[c - 1])) {
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// UTF8 character
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charpos.push_back(startx);
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charpos.push_back(x);
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c++;
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}
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c++;
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font = TTF_OpenFont(TTF_FONT, TTF_FONT_SIZE);
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if (!font) {
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ERROR("Unable to open font\n");
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return;
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}
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// Scan height of "0" glyph.
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std::string::size_type pos = characters.find("0") * 2;
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SDL_Rect srcrect = {
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static_cast<Sint16>(charpos[pos]),
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1,
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static_cast<Uint16>(charpos[pos + 2] - charpos[pos]),
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static_cast<Uint16>(surface->h - 1)
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};
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const unsigned alphaMask = surface->format->Amask;
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unsigned y = srcrect.h;
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bool nonTransparentFound = false;
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while (!nonTransparentFound && y-- > 0) {
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Uint32 *line = reinterpret_cast<Uint32 *>(
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reinterpret_cast<Uint8 *>(surface->pixels)
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+ (srcrect.y + y) * surface->pitch
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);
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for (unsigned x = 0; !nonTransparentFound && x < srcrect.w; x++) {
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nonTransparentFound = (line[srcrect.x + x] & alphaMask) != 0;
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}
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}
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lineHeight = y + 1;
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SDL_UnlockSurface(surface);
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fontheight = TTF_FontHeight(font);
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}
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ASFont::~ASFont() {
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if (surface) {
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SDL_FreeSurface(surface);
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ASFont::~ASFont()
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{
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TTF_CloseFont(font);
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TTF_Quit();
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}
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int ASFont::getTextWidth(const char *text)
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{
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int w, h;
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TTF_SizeUTF8(font, text, &w, &h);
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return w;
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}
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void ASFont::write(Surface *surface, const string &text,
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int x, int y, HAlign halign, VAlign valign)
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{
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if (text.find("\n", 0) == string::npos) {
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writeLine(surface, text.c_str(), x, y, halign, valign);
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return;
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}
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vector<string> v;
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split(v, text, "\n");
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for (vector<string>::const_iterator it = v.begin(); it != v.end(); it++) {
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writeLine(surface, it->c_str(), x, y, halign, valign);
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y += fontheight;
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}
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}
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bool ASFont::utf8Code(unsigned char c) {
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return (c>=194 && c<=198) || c==208 || c==209;
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//return c>=194;
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}
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void ASFont::writeLine(Surface *s, const std::string &text, int x, int y) {
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if (text.empty()) return;
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std::string::size_type pos;
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SDL_Rect srcrect, dstrect;
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// these values won't change in the loop
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srcrect.y = 1;
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dstrect.y = y;
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srcrect.h = dstrect.h = surface->h-1;
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for(unsigned i=0; i<text.length() && x<surface->w; i++) {
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//Utf8 characters
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if (utf8Code(text[i]) && i+1<text.length()) {
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pos = characters.find(text.substr(i,2));
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i++;
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} else
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pos = characters.find(text[i]);
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if (pos == std::string::npos) {
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x += charpos[2]-charpos[1];
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continue;
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}
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pos *= 2;
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srcrect.x = charpos[pos];
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srcrect.w = charpos[pos+2] - charpos[pos];
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dstrect.x = x - charpos[pos+1] + charpos[pos];
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SDL_BlitSurface(surface, &srcrect, s->raw, &dstrect);
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x += charpos[pos+2] - charpos[pos+1];
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}
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}
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int ASFont::getTextWidth(const char *text) {
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int maxWidth = 0, width = 0;
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while (char ch = *text++) {
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if (ch == '\n') {
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// New line.
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maxWidth = std::max(width, maxWidth);
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width = 0;
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} else {
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std::string::size_type pos;
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if (utf8Code(ch) && *text) {
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// 2-byte character.
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pos = characters.find(std::string(&text[-1], 2));
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text++;
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} else {
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// 1-byte character.
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pos = characters.find(ch);
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}
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if (pos == std::string::npos) {
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pos = 0;
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}
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width += charpos[pos * 2 + 2] - charpos[pos * 2 + 1];
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}
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}
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return std::max(width, maxWidth);
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}
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int ASFont::getTextWidth(const std::string& text) {
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return getTextWidth(text.c_str());
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}
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void ASFont::writeLine(Surface* surface, const std::string& text, int x, int y, HAlign halign) {
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void ASFont::writeLine(Surface *surface, const char *text,
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int x, int y, HAlign halign, VAlign valign)
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{
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switch (halign) {
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case HAlignLeft:
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break;
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@ -155,46 +72,46 @@ void ASFont::writeLine(Surface* surface, const std::string& text, int x, int y,
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x -= getTextWidth(text);
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break;
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}
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writeLine(surface, text, x, y);
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}
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void ASFont::writeLine(Surface* surface, const std::string& text, int x, int y, HAlign halign, VAlign valign) {
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switch (valign) {
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case VAlignTop:
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break;
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case VAlignMiddle:
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y -= getHeight() / 2;
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y -= fontheight / 2;
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break;
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case VAlignBottom:
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y -= getHeight();
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break;
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}
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writeLine(surface, text, x, y, halign);
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}
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void ASFont::writeLine(Surface* surface, const std::vector<std::string> &text, int x, int y, HAlign halign, VAlign valign) {
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switch (valign) {
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case VAlignTop:
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break;
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case VAlignMiddle:
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y -= (getHeight() / 2) * text.size();
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break;
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case VAlignBottom:
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y -= getHeight() * text.size();
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y -= fontheight;
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break;
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}
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for (std::vector<std::string>::const_iterator it = text.begin(); it != text.end(); ++it) {
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write(surface, *it, x, y, halign);
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y += getHeight();
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}
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}
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SDL_Color color = { 0, 0, 0, 0 };
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SDL_Surface *s = TTF_RenderUTF8_Blended(font, text, color);
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void ASFont::write(Surface* surface, const std::string& text, int x, int y, HAlign halign, VAlign valign) {
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if (text.find("\n", 0) != std::string::npos) {
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std::vector<std::string> textArr;
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split(textArr, text, "\n");
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writeLine(surface, textArr, x, y, halign, valign);
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} else
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writeLine(surface, text, x, y, halign, valign);
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SDL_Rect rect = { (Sint16) x, (Sint16) (y - 1), 0, 0 };
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SDL_BlitSurface(s, NULL, surface->raw, &rect);
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/* Note: rect.x / rect.y are reset everytime because SDL_BlitSurface
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* will modify them if negative */
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rect.x = x;
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rect.y = y + 1;
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SDL_BlitSurface(s, NULL, surface->raw, &rect);
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rect.x = x - 1;
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rect.y = y;
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SDL_BlitSurface(s, NULL, surface->raw, &rect);
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rect.x = x + 1;
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rect.y = y;
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SDL_BlitSurface(s, NULL, surface->raw, &rect);
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SDL_FreeSurface(s);
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rect.x = x;
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rect.y = y;
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color.r = 0xff;
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color.g = 0xff;
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color.b = 0xff;
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s = TTF_RenderUTF8_Blended(font, text, color);
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SDL_BlitSurface(s, NULL, surface->raw, &rect);
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SDL_FreeSurface(s);
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}
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39
src/asfont.h
39
src/asfont.h
@ -6,7 +6,7 @@
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#ifndef ASFONT_H
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#define ASFONT_H
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#include <SDL.h>
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#include <SDL_ttf.h>
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#include <string>
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#include <vector>
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@ -20,30 +20,33 @@ public:
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ASFont(const std::string &font);
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~ASFont();
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bool utf8Code(unsigned char c);
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int getTextWidth(const char *text);
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int getTextWidth(const std::string& text);
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int getHeight() {
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return surface->h - 1;
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}
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int getLineHeight() {
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return lineHeight;
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int getTextWidth(const std::string& text)
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{
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return getTextWidth(text.c_str());
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}
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void write(Surface* surface, const std::string& text, int x, int y, HAlign halign = HAlignLeft, VAlign valign = VAlignTop);
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bool utf8Code(unsigned char c)
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{
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return (c>=194 && c<=198) || c==208 || c==209;
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}
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int getHeight()
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{
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return fontheight;
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}
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void write(Surface *surface,
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const std::string &text, int x, int y,
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HAlign halign = HAlignLeft, VAlign valign = VAlignTop);
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private:
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void writeLine(Surface *surface, const std::string &text, int x, int y);
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void writeLine(Surface *surface, const std::string &text, int x, int y, HAlign halign);
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void writeLine(Surface *surface, const std::string &text, int x, int y, HAlign halign, VAlign valign);
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void writeLine(Surface *surface, const std::vector<std::string> &text, int x, int y, HAlign halign, VAlign valign);
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void writeLine(Surface *surface, const char *text,
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int x, int y, HAlign halign, VAlign valign);
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SDL_Surface *surface;
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std::vector<Uint16> charpos;
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std::string characters;
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int lineHeight;
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TTF_Font *font;
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unsigned int fontheight;
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};
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#endif /* ASFONT_H */
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@ -647,7 +647,7 @@ void GMenu2X::main() {
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uint linksPerPage = linkColumns*linkRows;
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int linkSpacingX = (resX-10 - linkColumns*skinConfInt["linkWidth"])/linkColumns;
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int linkSpacingY = (resY-35 - skinConfInt["topBarHeight"] - linkRows*skinConfInt["linkHeight"])/linkRows;
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uint sectionLinkPadding = (skinConfInt["topBarHeight"] - 32 - font->getLineHeight()) / 3;
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uint sectionLinkPadding = (skinConfInt["topBarHeight"] - 32 - font->getHeight()) / 3;
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bool quit = false;
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int x,y;
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@ -137,7 +137,7 @@ void Link::setPosition(int x, int y) {
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void Link::recalcCoordinates() {
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iconX = rect.x+(rect.w-32)/2;
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padding = (gmenu2x->skinConfInt["linkHeight"] - 32 - gmenu2x->font->getLineHeight()) / 3;
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padding = (gmenu2x->skinConfInt["linkHeight"] - 32 - gmenu2x->font->getHeight()) / 3;
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}
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void Link::run() {
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