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/****************************************************************************
* Functions to load fonts.
* Copyright (C) 2004 Joe Wingbermuehle
****************************************************************************/
#include "jwm.h"
#include "font.h"
#include "main.h"
#include "error.h"
#include "color.h"
#include "misc.h"
static const char *DEFAULT_FONT = "-*-courier-*-r-*-*-14-*-*-*-*-*-*-*";
static char *fontNames[FONT_COUNT];
#ifdef USE_XFT
static XftFont *fonts[FONT_COUNT];
#else
static XFontStruct *fonts[FONT_COUNT];
static GC fontGC;
#endif
/****************************************************************************
****************************************************************************/
void InitializeFonts() {
int x;
for(x = 0; x < FONT_COUNT; x++) {
fonts[x] = NULL;
fontNames[x] = NULL;
}
}
/****************************************************************************
****************************************************************************/
void StartupFonts() {
#ifndef USE_XFT
XGCValues gcValues;
unsigned long gcMask;
#endif
int x;
/* Inherit unset fonts from the tray for tray items. */
if(!fontNames[FONT_TASK]) {
fontNames[FONT_TASK] = CopyString(fontNames[FONT_TRAY]);
}
if(!fontNames[FONT_TRAYBUTTON]) {
fontNames[FONT_TRAYBUTTON] = CopyString(fontNames[FONT_TRAY]);
}
if(!fontNames[FONT_CLOCK]) {
fontNames[FONT_CLOCK] = CopyString(fontNames[FONT_TRAY]);
}
#ifdef USE_XFT
for(x = 0; x < FONT_COUNT; x++) {
if(fontNames[x]) {
fonts[x] = JXftFontOpenName(display, rootScreen, fontNames[x]);
if(!fonts[x]) {
fonts[x] = JXftFontOpenXlfd(display, rootScreen, fontNames[x]);
}
if(!fonts[x]) {
Warning("could not load font: %s", fontNames[x]);
}
}
if(!fonts[x]) {
fonts[x] = JXftFontOpenXlfd(display, rootScreen, DEFAULT_FONT);
}
if(!fonts[x]) {
FatalError("could not load the default font: %s", DEFAULT_FONT);
}
}
#else
for(x = 0; x < FONT_COUNT; x++) {
if(fontNames[x]) {
fonts[x] = JXLoadQueryFont(display, fontNames[x]);
if(!fonts[x] && fontNames[x]) {
Warning("could not load font: %s", fontNames[x]);
}
}
if(!fonts[x]) {
fonts[x] = JXLoadQueryFont(display, DEFAULT_FONT);
}
if(!fonts[x]) {
FatalError("could not load the default font: %s", DEFAULT_FONT);
}
}
gcMask = GCGraphicsExposures;
gcValues.graphics_exposures = False;
fontGC = JXCreateGC(display, rootWindow, gcMask, &gcValues);
#endif
}
/****************************************************************************
****************************************************************************/
void ShutdownFonts() {
int x;
for(x = 0; x < FONT_COUNT; x++) {
if(fonts[x]) {
#ifdef USE_XFT
JXftFontClose(display, fonts[x]);
#else
JXFreeFont(display, fonts[x]);
#endif
fonts[x] = NULL;
}
}
#ifndef USE_XFT
JXFreeGC(display, fontGC);
#endif
}
/****************************************************************************
****************************************************************************/
void DestroyFonts() {
int x;
for(x = 0; x < FONT_COUNT; x++) {
if(fontNames[x]) {
Release(fontNames[x]);
fontNames[x] = NULL;
}
}
}
/****************************************************************************
****************************************************************************/
int GetStringWidth(FontType type, const char *str) {
#ifdef USE_XFT
XGlyphInfo extents;
unsigned int length;
Assert(str);
Assert(fonts[type]);
length = strlen(str);
JXftTextExtentsUtf8(display, fonts[type], (const unsigned char*)str,
length, &extents);
return extents.width;
#else
Assert(str);
Assert(fonts[type]);
return XTextWidth(fonts[type], str, strlen(str));
#endif
}
/****************************************************************************
****************************************************************************/
int GetStringHeight(FontType type) {
Assert(fonts[type]);
return fonts[type]->ascent + fonts[type]->descent;
}
/****************************************************************************
****************************************************************************/
void SetFont(FontType type, const char *value) {
if(!value) {
Warning("empty Font tag");
return;
}
if(fontNames[type]) {
Release(fontNames[type]);
}
fontNames[type] = CopyString(value);
}
/****************************************************************************
****************************************************************************/
void RenderString(Drawable d, FontType font, ColorType color,
int x, int y, int width, Region region, const char *str) {
#ifdef USE_XFT
XftDraw *xd;
#endif
XRectangle rect;
Region renderRegion;
int len;
char *output;
#ifdef USE_FRIBIDI
FriBidiChar *temp;
FriBidiCharType type = FRIBIDI_TYPE_ON;
int unicodeLength;
#endif
if(!str) {
return;
}
len = strlen(str);
if(len == 0) {
return;
}
/* Get the bounds for the string based on the specified width. */
rect.x = x;
rect.y = y;
rect.width = Min(GetStringWidth(font, str), width) + 2;
rect.height = GetStringHeight(font);
/* Create a region to use. */
renderRegion = XCreateRegion();
/* Combine the width bounds with the region to use. */
XUnionRectWithRegion(&rect, renderRegion, renderRegion);
/* Combine the provided region with the region to use. */
if(region) {
XIntersectRegion(region, renderRegion, renderRegion);
}
/* Apply the bidi algorithm if requested. */
#ifdef USE_FRIBIDI
temp = AllocateStack((len + 1) * sizeof(FriBidiChar));
unicodeLength = fribidi_utf8_to_unicode((char*)str, len, temp);
fribidi_log2vis(temp, unicodeLength, &type, temp, NULL, NULL, NULL);
fribidi_unicode_to_utf8(temp, len, (char*)temp);
output = (char*)temp;
#else
output = (char*)str;
#endif
/* Display the string. */
#ifdef USE_XFT
xd = XftDrawCreate(display, d, rootVisual, rootColormap);
XftDrawSetClip(xd, renderRegion);
JXftDrawStringUtf8(xd, GetXftColor(color), fonts[font],
x, y + fonts[font]->ascent, (const unsigned char*)output, len);
XftDrawDestroy(xd);
#else
JXSetForeground(display, fontGC, colors[color]);
XSetRegion(display, fontGC, renderRegion);
JXSetFont(display, fontGC, fonts[font]->fid);
JXDrawString(display, d, fontGC, x, y + fonts[font]->ascent, output, len);
#endif
/* Free any memory used for UTF conversion. */
#ifdef USE_FRIBIDI
ReleaseStack(output);
#endif
XDestroyRegion(renderRegion);
}
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