+bool
+possibly_translate_keyval_to_make_legal_accelerator (uint32_t& keyval)
+{
+ int fakekey = GDK_VoidSymbol;
+
+ switch (keyval) {
+ case GDK_Tab:
+ case GDK_ISO_Left_Tab:
+ fakekey = GDK_nabla;
+ break;
+
+ case GDK_Up:
+ fakekey = GDK_uparrow;
+ break;
+
+ case GDK_Down:
+ fakekey = GDK_downarrow;
+ break;
+
+ case GDK_Right:
+ fakekey = GDK_rightarrow;
+ break;
+
+ case GDK_Left:
+ fakekey = GDK_leftarrow;
+ break;
+
+ case GDK_Return:
+ fakekey = GDK_3270_Enter;
+ break;
+
+ case GDK_KP_Enter:
+ fakekey = GDK_F35;
+ break;
+
+ default:
+ break;
+ }
+
+ if (fakekey != GDK_VoidSymbol) {
+ keyval = fakekey;
+ return true;
+ }
+
+ return false;
+}
+
+uint32_t
+possibly_translate_legal_accelerator_to_real_key (uint32_t keyval)
+{
+ switch (keyval) {
+ case GDK_nabla:
+ return GDK_Tab;
+ break;
+
+ case GDK_uparrow:
+ return GDK_Up;
+ break;
+
+ case GDK_downarrow:
+ return GDK_Down;
+ break;
+
+ case GDK_rightarrow:
+ return GDK_Right;
+ break;
+
+ case GDK_leftarrow:
+ return GDK_Left;
+ break;
+
+ case GDK_3270_Enter:
+ return GDK_Return;
+
+ case GDK_F35:
+ return GDK_KP_Enter;
+ break;
+ }
+
+ return keyval;
+}
+
+
+
+inline guint8
+convert_color_channel (guint8 src,
+ guint8 alpha)
+{
+ return alpha ? ((guint (src) << 8) - src) / alpha : 0;
+}
+
+void
+convert_bgra_to_rgba (guint8 const* src,
+ guint8* dst,
+ int width,
+ int height)
+{
+ guint8 const* src_pixel = src;
+ guint8* dst_pixel = dst;
+
+ for (int y = 0; y < height; y++)
+ for (int x = 0; x < width; x++)
+ {
+ dst_pixel[0] = convert_color_channel (src_pixel[2],
+ src_pixel[3]);
+ dst_pixel[1] = convert_color_channel (src_pixel[1],
+ src_pixel[3]);
+ dst_pixel[2] = convert_color_channel (src_pixel[0],
+ src_pixel[3]);
+ dst_pixel[3] = src_pixel[3];
+
+ dst_pixel += 4;
+ src_pixel += 4;
+ }
+}
+
+void
+resize_window_to_proportion_of_monitor (Gtk::Window* window, int max_width, int max_height)
+{
+ Glib::RefPtr<Gdk::Screen> screen = window->get_screen ();
+ Gdk::Rectangle monitor_rect;
+ screen->get_monitor_geometry (0, monitor_rect);
+
+ int const w = std::min (monitor_rect.get_width(), max_width) * 0.8;
+ int const h = std::min (monitor_rect.get_height(), max_height) * 0.8;
+
+ window->resize (w, h);
+}
+
+Glib::RefPtr<Gdk::Pixbuf>
+pixbuf_from_ustring(const ustring& name, Pango::FontDescription* font, int clip_width, int clip_height)
+{
+ static Glib::RefPtr<Gdk::Pixbuf>* empty_pixbuf = 0;
+
+ if (name.empty()) {
+ if (empty_pixbuf == 0) {
+ empty_pixbuf = new Glib::RefPtr<Gdk::Pixbuf>;
+ *empty_pixbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, clip_width, clip_height);
+ }
+ cerr << "\n\nUSE EMPTY PIXBUF\n";
+ return *empty_pixbuf;
+ }
+
+ Glib::RefPtr<Gdk::Pixbuf> buf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, clip_width, clip_height);
+
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, clip_width, clip_height);
+ cairo_t* cr = cairo_create (surface);
+ cairo_text_extents_t te;
+
+ cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
+ cairo_select_font_face (cr, font->get_family().c_str(),
+ CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size (cr, font->get_size() / Pango::SCALE);
+ cairo_text_extents (cr, name.c_str(), &te);
+
+ cairo_move_to (cr, 0.5, 0.5 - te.height / 2 - te.y_bearing + clip_height / 2);
+ cairo_show_text (cr, name.c_str());
+
+ convert_bgra_to_rgba(cairo_image_surface_get_data (surface), buf->get_pixels(), clip_width, clip_height);
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(surface);
+
+ return buf;
+}
projects / ardour.git / blobdiff