libui/zOLD_unix/fontbutton.c

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// 14 april 2016
#include "uipriv_unix.h"
#include "attrstr.h"
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struct uiFontButton {
uiUnixControl c;
GtkWidget *widget;
GtkButton *button;
GtkFontButton *fb;
GtkFontChooser *fc;
void (*onChanged)(uiFontButton *, void *);
void *onChangedData;
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};
uiUnixControlAllDefaults(uiFontButton)
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// TODO NOTE no need to inhibit the signal; font-set is documented as only being sent when the user changes the font
static void onFontSet(GtkFontButton *button, gpointer data)
{
uiFontButton *b = uiFontButton(data);
(*(b->onChanged))(b, b->onChangedData);
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}
static void defaultOnChanged(uiFontButton *b, void *data)
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{
// do nothing
}
void uiFontButtonFont(uiFontButton *b, uiFontDescriptor *desc)
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{
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PangoFontDescription *pdesc;
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pdesc = gtk_font_chooser_get_font_desc(b->fc);
uiprivFontDescriptorFromPangoFontDescription(pdesc, desc);
// pdesc is transfer-full and thus is a copy
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pango_font_description_free(pdesc);
}
void uiFontButtonOnChanged(uiFontButton *b, void (*f)(uiFontButton *, void *), void *data)
{
b->onChanged = f;
b->onChangedData = data;
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}
uiFontButton *uiNewFontButton(void)
{
uiFontButton *b;
uiUnixNewControl(uiFontButton, b);
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b->widget = gtk_font_button_new();
b->button = GTK_BUTTON(b->widget);
b->fb = GTK_FONT_BUTTON(b->widget);
b->fc = GTK_FONT_CHOOSER(b->widget);
// match behavior on other platforms
gtk_font_button_set_show_style(b->fb, TRUE);
gtk_font_button_set_show_size(b->fb, TRUE);
gtk_font_button_set_use_font(b->fb, FALSE);
gtk_font_button_set_use_size(b->fb, FALSE);
// other customizations
gtk_font_chooser_set_show_preview_entry(b->fc, TRUE);
g_signal_connect(b->widget, "font-set", G_CALLBACK(onFontSet), b);
uiFontButtonOnChanged(b, defaultOnChanged, NULL);
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return b;
}
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void uiFreeFontButtonFont(uiFontDescriptor *desc)
{
// TODO ensure this is synchronized with fontmatch.c
uiFreeText((char *) (desc->Family));
}