bool wxApp::OnInitGui()
{
if ( !wxAppBase::OnInitGui() )
return false;
#ifndef __WXGTK3__
// if this is a wxGLApp (derived from wxApp), and we've already
// chosen a specific visual, then derive the GdkVisual from that
if ( GetXVisualInfo() )
{
GdkVisual* vis = gtk_widget_get_default_visual();
GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
gtk_widget_set_default_colormap( colormap );
}
else
{
// On some machines, the default visual is just 256 colours, so
// we make sure we get the best. This can sometimes be wasteful.
if (m_useBestVisual)
{
if (m_forceTrueColour)
{
GdkVisual* visual = gdk_visual_get_best_with_both( 24, GDK_VISUAL_TRUE_COLOR );
if (!visual)
{
wxLogError(wxT("Unable to initialize TrueColor visual."));
return false;
}
GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
gtk_widget_set_default_colormap( colormap );
}
else
{
if (gdk_visual_get_best() != gdk_visual_get_system())
{
GdkVisual* visual = gdk_visual_get_best();
GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
gtk_widget_set_default_colormap( colormap );
}
}
}
}
#endif
#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
if ( !GetHildonProgram() )
{
wxLogError(_("Unable to initialize Hildon program"));
return false;
}
#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
return true;
}
void gtk_gui_alloc_resources() {
GdkColormap *map;
gui_colour_normal.red = gui_colour_normal.green = gui_colour_normal.blue = 0;
gui_colour_changed.red = gui_colour_changed.green = 64*256;
gui_colour_changed.blue = 154*256;
gui_colour_error.red = 65535;
gui_colour_error.green = gui_colour_error.blue = 64*256;
gui_colour_pc.red = 32*256;
gui_colour_pc.green = 170*256;
gui_colour_pc.blue = 52*256;
gui_colour_warn = gui_colour_changed;
gui_colour_trace.red = 156*256;
gui_colour_trace.green = 78*256;
gui_colour_trace.blue = 201*256;
gui_colour_debug = gui_colour_pc;
gui_colour_break.red = 65535;
gui_colour_break.green = gui_colour_break.blue = 192*256;
gui_colour_temp_break.red = gui_colour_temp_break.green = 128*256;
gui_colour_temp_break.blue = 32*256;
gui_colour_white.red = gui_colour_white.green = gui_colour_white.blue = 65535;
map = gdk_colormap_new(gdk_visual_get_best(), TRUE);
gdk_colormap_alloc_color(map, &gui_colour_normal, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_changed, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_error, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_warn, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_pc, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_debug, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_trace, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_break, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_temp_break, TRUE, TRUE);
gdk_colormap_alloc_color(map, &gui_colour_white, TRUE, TRUE);
gui_fixed_font = pango_font_description_from_string("Courier 10");
}
/* Visual */
CAMLprim value ml_gdk_visual_get_best (value depth, value type)
{
GdkVisual *vis;
if (type == Val_unit)
if (depth == Val_unit) vis = gdk_visual_get_best ();
else vis = gdk_visual_get_best_with_depth (Int_val(Field(depth,0)));
else
if (depth == Val_unit)
vis = gdk_visual_get_best_with_type
(GdkVisualType_val(Field(type,0)));
else vis = gdk_visual_get_best_with_both
(Int_val(Field(depth,0)),GdkVisualType_val(Field(type,0)));
if (!vis) ml_raise_gdk("Gdk.Visual.get_best");
return Val_GdkVisual(vis);
}
void iupgtkPushVisualAndColormap(void* visual, void* colormap)
{
#if GTK_CHECK_VERSION(3, 0, 0)
(void)visual;
(void)colormap;
#else
GdkColormap* gdk_colormap;
GdkVisual *gdk_visual = gdk_visual_get_best();
gdk_colormap = gdk_colormap_new(gdk_visual, FALSE);
gtk_widget_push_colormap(gdk_colormap);
/* gtk_widget_push_visual is now deprecated */
#endif
}
/* allocate a color from the color map */
gboolean
get_color(GdkColor *new_color)
{
GdkVisual *pv;
if (!our_cmap) {
if (!gdk_colormap_alloc_color (sys_cmap, new_color, FALSE,
TRUE)) {
pv = gdk_visual_get_best();
if (!(our_cmap = gdk_colormap_new(pv, TRUE))) {
simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
"Could not create new colormap");
}
} else
return (TRUE);
}
return (gdk_colormap_alloc_color(our_cmap, new_color, FALSE, TRUE));
}
GdkPixbuf*
gwy_graph_export_pixmap(GwyGraph *graph,
G_GNUC_UNUSED gboolean export_title,
G_GNUC_UNUSED gboolean export_axis,
G_GNUC_UNUSED gboolean export_labels)
{
GdkColor color = { 0, 65535, 65535, 65535 };
GdkPixbuf *pixbuf;
GdkColormap *cmap;
GdkGC *gc;
GdkVisual *visual;
GdkPixmap *pixmap;
PangoLayout *layout;
PangoContext *context;
gint width, height, topheight, bottomheight, rightwidth, leftwidth;
gint labelx, labely, labelw, labelh;
width = (GTK_WIDGET(graph))->allocation.width;
height = (GTK_WIDGET(graph))->allocation.height;
topheight = (GTK_WIDGET(graph->axis[GTK_POS_TOP]))->allocation.height;
bottomheight = (GTK_WIDGET(graph->axis[GTK_POS_BOTTOM]))->allocation.height;
leftwidth = (GTK_WIDGET(graph->axis[GTK_POS_LEFT]))->allocation.width;
rightwidth = (GTK_WIDGET(graph->axis[GTK_POS_RIGHT]))->allocation.width;
labelx = (GTK_WIDGET(graph->area->lab))->allocation.x + leftwidth;
labely = (GTK_WIDGET(graph->area->lab))->allocation.y + topheight;
labelw = (GWY_GRAPH_LABEL(graph->area->lab))->reqwidth;
labelh = (GWY_GRAPH_LABEL(graph->area->lab))->reqheight;
visual = gdk_visual_get_best();
cmap = gdk_colormap_new(visual, FALSE);
pixmap = gdk_pixmap_new(NULL, width, height, visual->depth);
gdk_drawable_set_colormap(pixmap, cmap);
gc = gdk_gc_new(pixmap);
gdk_gc_set_colormap(gc, cmap);
gdk_gc_set_rgb_fg_color(gc, &color);
gdk_draw_rectangle(pixmap, gc, TRUE, 0, 0, width, height);
gwy_graph_area_draw_on_drawable(graph->area, pixmap, gc,
leftwidth, topheight,
width - leftwidth - rightwidth,
height - topheight - bottomheight);
/* Draw axes */
gwy_axis_draw_on_drawable(graph->axis[GTK_POS_TOP], pixmap, gc,
leftwidth, 0,
width - leftwidth - rightwidth, topheight);
gwy_axis_draw_on_drawable(graph->axis[GTK_POS_BOTTOM], pixmap, gc,
leftwidth, height - bottomheight,
width - leftwidth - rightwidth, bottomheight);
gwy_axis_draw_on_drawable(graph->axis[GTK_POS_LEFT], pixmap, gc,
0, topheight,
leftwidth, height - topheight - bottomheight);
gwy_axis_draw_on_drawable(graph->axis[GTK_POS_RIGHT], pixmap, gc,
width - rightwidth, topheight,
rightwidth, height - topheight - bottomheight);
context = gdk_pango_context_get_for_screen(gdk_screen_get_default());
pango_context_set_font_description(context, graph->area->lab->font_desc);
layout = pango_layout_new(context);
gwy_graph_label_draw_on_drawable(graph->area->lab, pixmap, gc, layout,
labelx, labely, labelw, labelh);
pixbuf = gdk_pixbuf_get_from_drawable(NULL, pixmap, cmap,
0, 0, 0, 0,
-1, -1);
g_object_unref(pixmap);
g_object_unref(layout);
g_object_unref(context);
g_object_unref(gc);
g_object_unref(cmap);
return pixbuf;
}
static VALUE
rg_s_best(G_GNUC_UNUSED VALUE self)
{
return GOBJ2RVAL(gdk_visual_get_best());
}
