diff options
Diffstat (limited to 'app/wlib/gtklib/gtkfont.c')
| -rw-r--r-- | app/wlib/gtklib/gtkfont.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/app/wlib/gtklib/gtkfont.c b/app/wlib/gtklib/gtkfont.c deleted file mode 100644 index 89937d7..0000000 --- a/app/wlib/gtklib/gtkfont.c +++ /dev/null @@ -1,342 +0,0 @@ -/** \file gtkfont.c - * Font selection and loading. - */ - -/* XTrkCad - Model Railroad CAD - * Copyright (C) 2005 Dave Bullis - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <stdio.h> -#include <stdlib.h> -#ifdef HAVE_MALLOC_H -#include <malloc.h> -#endif -#include <unistd.h> -#include <string.h> -#include <math.h> -#include <stdlib.h> - -#include "wlib.h" -#include "gtkint.h" -#include "i18n.h" - -#ifndef TRUE -#define TRUE (1) -#define FALSE (0) -#endif - -/* - * Macro for debug purposes. Possible debug macro values: - * - * 0 - no messages to console (use this value when building in release mode) - * 1 - send errors - * 2 - send details - * 3 - send more details - */ -#define WLIB_FONT_DEBUG 0 - -static gchar sampleText[] = "AbCdE0129!@$&()[]{}"; - -static GtkWidget *fontSelectionDialog; - - -/***************************************************************************** - * FONT HANDLERS - */ - -#define FW_MEDIUM (0) -#define FW_BOLD (1) -#define FS_REGULAR (0) -#define FS_ITALIC (1) - -/* absoluteFontSize was introduced to keep the font size information synchron - * between the Dt.size of ctext.c and it's drop list on the status bar and - * the font size coming from the gtk font dialog which is located in this file */ -int absoluteFontSize = 18; - -struct wFont_t { - PangoFontDescription *fontDescription; - }; - -static wFont_p standardFonts[F_HELV-F_TIMES+1][2][2]; -static wFont_p curFont = NULL; - - -static void fontSelectionDialogCallback(GtkFontSelectionDialog *fontSelectionDialog, gint response, gpointer data) -{ - gchar *fontName; - - switch (response) - { - case GTK_RESPONSE_APPLY: /* once the apply button is hidden, this should not be used */ - case GTK_RESPONSE_OK: - fontName = gtk_font_selection_dialog_get_font_name(fontSelectionDialog); - wPrefSetString( "font", "name", fontName ); - pango_font_description_free(curFont->fontDescription); - curFont->fontDescription = pango_font_description_from_string(fontName); - absoluteFontSize = (pango_font_description_get_size(curFont->fontDescription))/PANGO_SCALE; -#if WLIB_FONT_DEBUG >= 2 - fprintf(stderr, "new font selection:\n"); - fprintf(stderr, " font name \"%s\"\n", fontName); - fprintf(stderr, " font size is %d\n",pango_font_description_get_size(curFont->fontDescription)/PANGO_SCALE); - fprintf(stderr, " font size is absolute %d\n", pango_font_description_get_size_is_absolute(curFont->fontDescription)); -#endif - g_free(fontName); - break; - default: - gtk_widget_hide(GTK_WIDGET(fontSelectionDialog)); - } - if (response == GTK_RESPONSE_OK) - gtk_widget_hide(GTK_WIDGET(fontSelectionDialog)); -} - -static wBool_t fontInitted = FALSE; - -static wBool_t fontInit() -{ - const char *fontNames[] = { - "times 18", - "times italic 18", - "times bold 18", - "times bold italic 18", - "helvetica 18", - "helvetica oblique 18", - "helvetica bold 18", - "helvetica bold oblique 18", - }; - - int s = 0; - int i, j, k; - - for (i = F_TIMES; i <= F_HELV; ++i) { - for (j = FW_MEDIUM; j <= FW_BOLD; ++j) { - for (k = FS_REGULAR; k <= FS_ITALIC; ++k) { - PangoFontDescription *fontDescription = pango_font_description_from_string(fontNames[s++]); - wFont_p standardFont = (wFont_p) malloc(sizeof(struct wFont_t)); - standardFont->fontDescription = fontDescription; - standardFonts[i-F_TIMES][j][k] = standardFont; - } - } - } - - if (curFont == NULL) { - curFont = (wFont_p) malloc(sizeof(struct wFont_t)); - if (curFont == NULL) - return FALSE; - const char *fontName = wPrefGetString("font", "name"); - curFont->fontDescription = pango_font_description_from_string(fontName ? fontName : "helvetica 18"); - absoluteFontSize = (int) PANGO_PIXELS(pango_font_description_get_size(curFont->fontDescription)); - } - - fontInitted = TRUE; - return TRUE; -} - - -static double fontFactor = 1.0; - -#define FONTSIZE_TO_PANGOSIZE(fs) ((gint) ((fs) * (fontFactor) + .5)) - -/** - * Create a Pango layout with a specified font and font size - * - * \param widget IN - * \param cairo IN cairo context - * \param fp IN font - * \param fs IN size - * \param s IN ??? - * \param width_p OUT width of layout - * \param height_p OUT height of layout - * \param ascent_p OUT ascent of layout - * \param descent_p OUT descent of layout - * \return the created Pango layout - */ - -PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget, - void *cairo, - wFont_p fp, - wFontSize_t fs, - const char *s, - int *width_p, - int *height_p, - int *ascent_p, - int *descent_p) -{ - if (!fontInitted) - fontInit(); - - PangoLayout *layout = NULL; - - gchar *utf8 = gtkConvertInput(s); - -/* RPH -- pango_cairo_create_layout() is missing in CentOS 4.8. - CentOS 4.8 only has GTK 2.4.13 and Pango 1.6.0 and does not have - libpangocairo at all. - pango_cairo_create_layout() was introduced with Pango 1.10. */ - -#if PANGO_VERSION_MAJOR >= 1 && PANGO_VERSION_MINOR >= 10 - if (cairo != NULL) { - layout = pango_cairo_create_layout((cairo_t *) cairo); - pango_layout_set_text(layout, utf8, -1); - } - else -#endif - layout = gtk_widget_create_pango_layout(widget, utf8); - - PangoFontDescription *fontDescription = (fp ? fp : curFont)->fontDescription; - - PangoContext *context; - PangoFontMetrics *metrics; - - /* set attributes */ - pango_font_description_set_size(fontDescription, - FONTSIZE_TO_PANGOSIZE(fs) * PANGO_SCALE); - pango_layout_set_font_description(layout, fontDescription); - - /* get layout measures */ - pango_layout_get_pixel_size(layout, width_p, height_p); - context = gtk_widget_get_pango_context(widget); - metrics = pango_context_get_metrics(context, fontDescription, - pango_context_get_language(context)); - *ascent_p = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics)); - *descent_p = PANGO_PIXELS(pango_font_metrics_get_descent(metrics)); - pango_font_metrics_unref(metrics); - -#if WLIB_FONT_DEBUG >= 3 - fprintf(stderr, "font layout created:\n"); - fprintf(stderr, " widget: %p\n", widget); - //fprintf(stderr, " font description:%p\n", fp); - fprintf(stderr, " font size: %f\n", fs); - fprintf(stderr, " layout text: \"%s\" (utf8)\n", utf8); - fprintf(stderr, " layout width: %d\n", *width_p); - fprintf(stderr, " layout height: %d\n", *height_p); - fprintf(stderr, " layout ascent: %d (pixels)\n", *ascent_p); - fprintf(stderr, " layout descent: %d (pixels)\n", *descent_p); -#endif - - return layout; -} - -void gtkFontDestroyPangoLayout(PangoLayout *layout) -{ - g_object_unref(G_OBJECT(layout)); -} - -void wInitializeFonts() -{ - if (!fontInitted) - fontInit(); -} - -void wSelectFont( - const char * title ) -{ - if (!fontInitted) - fontInit(); - - if (fontSelectionDialog == NULL) { - fontSelectionDialog = gtk_font_selection_dialog_new(_("Font Select")); - gtk_window_set_position(GTK_WINDOW(fontSelectionDialog), GTK_WIN_POS_MOUSE); - gtk_window_set_modal(GTK_WINDOW(fontSelectionDialog), TRUE); - gtk_font_selection_dialog_set_preview_text(GTK_FONT_SELECTION_DIALOG(fontSelectionDialog), sampleText); - g_signal_connect(G_OBJECT(fontSelectionDialog), "response", G_CALLBACK(fontSelectionDialogCallback), NULL); - gtk_signal_connect(GTK_OBJECT(fontSelectionDialog), "destroy", GTK_SIGNAL_FUNC(gtk_widget_destroyed), &fontSelectionDialog); - } - gtk_window_set_title(GTK_WINDOW(fontSelectionDialog), title); - - if (curFont != NULL) { - /* the curFont description contains the latest font info - * which is depended on the current scale - * overwrite it with the absoluteFontSize */ - pango_font_description_set_size(curFont->fontDescription,FONTSIZE_TO_PANGOSIZE(absoluteFontSize) * PANGO_SCALE); - gchar *fontName = pango_font_description_to_string(curFont->fontDescription); - gtk_font_selection_dialog_set_font_name(GTK_FONT_SELECTION_DIALOG(fontSelectionDialog), fontName); - g_free(fontName); - } - - gtk_widget_show(fontSelectionDialog); -} - -static wFont_p gtkSelectedFont( void ) -{ - if (!fontInitted) - fontInit(); - - return curFont; -} - -wFontSize_t wSelectedFontSize( void ) -{ - if (!fontInitted) - fontInit(); - -#if WLIB_FONT_DEBUG >= 3 - fprintf(stderr, "the font size of current font description is: %d\n",pango_font_description_get_size(curFont->fontDescription)/PANGO_SCALE); - fprintf(stderr, "the font size of absoluteFontSize is: %d\n",absoluteFontSize); -#endif - - //return (wFontSize_t) PANGO_PIXELS(pango_font_description_get_size(curFont->fontDescription)); - return absoluteFontSize; -} - -void wSetSelectedFontSize(int size){ - absoluteFontSize = (wFontSize_t)size; -} - -/** - * get the Pango font description as a string from a font definition. - * If the font definition is NULL, a default font is return. This is - * the current font if one is set. If not the first font from the font - * list is returned. - * - * \param fp IN the font definition - * \return the font description - */ - -const char *gtkFontTranslate( wFont_p fp ) -{ - static gchar *fontName = NULL; - - if (fontName != NULL) - g_free(fontName); - - if (!fontInitted) - fontInit(); - - if (fp == NULL) - fp = gtkSelectedFont(); - - if (fp == NULL) - fp = standardFonts[0][FW_MEDIUM][FS_REGULAR]; - - fontName = pango_font_description_to_string(fp->fontDescription); - -#if WLIB_FONT_DEBUG >= 2 - fprintf(stderr, "font translation: "); - fprintf(stderr, " \"%s\"\n", fontName); -#endif - - return (const char *) fontName; -} - -wFont_p wStandardFont( int face, wBool_t bold, wBool_t italic ) -{ - if (!fontInitted) - fontInit(); - - return standardFonts[face-F_TIMES][bold][italic]; -} |