Learning_GTK4_tree/tests/testfontoptions.c

95 lines
3.7 KiB
C

#include <gtk/gtk.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
static GtkWidget *antialias;
static GtkWidget *subpixel;
static GtkWidget *hintstyle;
static void
set_font_options (GtkWidget *label)
{
cairo_antialias_t aa;
cairo_subpixel_order_t sp;
cairo_hint_style_t hs;
cairo_font_options_t *options;
aa = gtk_combo_box_get_active (GTK_COMBO_BOX (antialias));
sp = gtk_combo_box_get_active (GTK_COMBO_BOX (subpixel));
hs = gtk_combo_box_get_active (GTK_COMBO_BOX (hintstyle));
options = cairo_font_options_create ();
cairo_font_options_set_antialias (options, aa);
cairo_font_options_set_subpixel_order (options, sp);
cairo_font_options_set_hint_style (options, hs);
gtk_widget_set_font_options (label, options);
cairo_font_options_destroy (options);
gtk_widget_queue_draw (label);
}
int
main (int argc, char *argv[])
{
GtkWidget *window, *label, *grid, *demo;
gtk_init ();
window = gtk_window_new ();
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 10);
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
gtk_window_set_child (GTK_WINDOW (window), grid);
label = gtk_label_new ("Default font options");
gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 2, 1);
demo = gtk_label_new ("Custom font options");
gtk_grid_attach (GTK_GRID (grid), demo, 0, 1, 2, 1);
antialias = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Default");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "None");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Gray");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Subpixel");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Fast");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Good");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (antialias), "Best");
g_signal_connect_swapped (antialias, "changed", G_CALLBACK (set_font_options), demo);
label = gtk_label_new ("Antialias");
gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
gtk_grid_attach (GTK_GRID (grid), antialias, 1, 2, 1, 1);
subpixel = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (subpixel), "Default");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (subpixel), "RGB");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (subpixel), "BGR");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (subpixel), "Vertical RGB");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (subpixel), "Vertical BGR");
g_signal_connect_swapped (subpixel, "changed", G_CALLBACK (set_font_options), demo);
label = gtk_label_new ("Subpixel");
gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
gtk_grid_attach (GTK_GRID (grid), subpixel, 1, 3, 1, 1);
hintstyle = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (hintstyle), "Default");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (hintstyle), "None");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (hintstyle), "Slight");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (hintstyle), "Medium");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (hintstyle), "Full");
g_signal_connect_swapped (hintstyle, "changed", G_CALLBACK (set_font_options), demo);
label = gtk_label_new ("Hintstyle");
gtk_grid_attach (GTK_GRID (grid), label, 0, 4, 1, 1);
gtk_grid_attach (GTK_GRID (grid), hintstyle, 1, 4, 1, 1);
gtk_combo_box_set_active (GTK_COMBO_BOX (antialias), 0);
gtk_combo_box_set_active (GTK_COMBO_BOX (subpixel), 0);
gtk_combo_box_set_active (GTK_COMBO_BOX (hintstyle), 0);
gtk_window_present (GTK_WINDOW (window));
while (TRUE)
g_main_context_iteration (NULL, TRUE);
return 0;
}