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Diffstat (limited to 'app/wlib/gtklib/gtkfont.c')
-rw-r--r--app/wlib/gtklib/gtkfont.c88
1 files changed, 55 insertions, 33 deletions
diff --git a/app/wlib/gtklib/gtkfont.c b/app/wlib/gtklib/gtkfont.c
index 1a707f8..89937d7 100644
--- a/app/wlib/gtklib/gtkfont.c
+++ b/app/wlib/gtklib/gtkfont.c
@@ -1,7 +1,5 @@
/** \file gtkfont.c
* Font selection and loading.
- *
- * $Header: /home/dmarkle/xtrkcad-fork-cvs/xtrkcad/app/wlib/gtklib/gtkfont.c,v 1.12 2009-12-07 19:31:31 m_fischer Exp $
*/
/* XTrkCad - Model Railroad CAD
@@ -81,7 +79,7 @@ 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 */
@@ -120,10 +118,10 @@ static wBool_t fontInit()
"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) {
@@ -134,7 +132,7 @@ static wBool_t fontInit()
}
}
}
-
+
if (curFont == NULL) {
curFont = (wFont_p) malloc(sizeof(struct wFont_t));
if (curFont == NULL)
@@ -143,7 +141,7 @@ static wBool_t fontInit()
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;
}
@@ -153,6 +151,21 @@ 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,
@@ -165,9 +178,9 @@ PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget,
{
if (!fontInitted)
fontInit();
-
+
PangoLayout *layout = NULL;
-
+
gchar *utf8 = gtkConvertInput(s);
/* RPH -- pango_cairo_create_layout() is missing in CentOS 4.8.
@@ -175,7 +188,7 @@ PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget,
libpangocairo at all.
pango_cairo_create_layout() was introduced with Pango 1.10. */
-#if PANGO_VERSION_MAJOR >= 1 && PANGO_VERSION_MINOR >= 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);
@@ -183,17 +196,17 @@ PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget,
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);
@@ -202,7 +215,7 @@ PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget,
*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);
@@ -214,7 +227,7 @@ PangoLayout *gtkFontCreatePangoLayout(GtkWidget *widget,
fprintf(stderr, " layout ascent: %d (pixels)\n", *ascent_p);
fprintf(stderr, " layout descent: %d (pixels)\n", *descent_p);
#endif
-
+
return layout;
}
@@ -234,7 +247,7 @@ void wSelectFont(
{
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);
@@ -244,17 +257,17 @@ void wSelectFont(
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
+ /* the curFont description contains the latest font info
* which is depended on the current scale
- * overwrite it with the absoluteFontSize */
+ * 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);
}
@@ -262,7 +275,7 @@ static wFont_p gtkSelectedFont( void )
{
if (!fontInitted)
fontInit();
-
+
return curFont;
}
@@ -270,12 +283,12 @@ 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);
+ 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;
}
@@ -283,26 +296,35 @@ wFontSize_t wSelectedFontSize( void )
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);
@@ -315,6 +337,6 @@ wFont_p wStandardFont( int face, wBool_t bold, wBool_t italic )
{
if (!fontInitted)
fontInit();
-
+
return standardFonts[face-F_TIMES][bold][italic];
}
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