static void
gst_time_overlay_class_init (GstTimeOverlayClass * klass)
{
GstTextOverlayClass *gsttextoverlay_class;
PangoContext *context;
PangoFontDescription *font_description;
gsttextoverlay_class = (GstTextOverlayClass *) klass;
gsttextoverlay_class->get_text = gst_time_overlay_get_text;
g_mutex_lock (GST_TEXT_OVERLAY_CLASS (klass)->pango_lock);
context = GST_TEXT_OVERLAY_CLASS (klass)->pango_context;
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family_static (font_description, "Monospace");
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
g_mutex_unlock (GST_TEXT_OVERLAY_CLASS (klass)->pango_lock);
}
FontSupport::FontMatch FontSupport::matchFont(const WFont& f) const
{
for (MatchCache::iterator i = cache_.begin(); i != cache_.end(); ++i) {
if (i->font == f) {
cache_.splice(cache_.begin(), cache_, i); // implement LRU
return FontMatch(i->match, i->desc);
}
}
PANGO_LOCK;
enabledFontFormats = enabledFontFormats_;
PangoFontDescription *desc = createFontDescription(f);
PangoFont *match = pango_font_map_load_font(pangoFontMap, context_, desc);
pango_context_set_font_description(context_, desc); // for layoutText()
if (cache_.back().match) {
g_object_unref(cache_.back().match);
pango_font_description_free(cache_.back().desc);
}
cache_.pop_back();
cache_.push_front(Matched(f, match, desc));
return FontMatch(match, desc);
}
void tooltip_window_create( GtkWidget* dock_window )
{
eric_window* w = eric_window_create( 10, 10, "" );
gtk_window_move( GTK_WINDOW( w->window ), 0, 1040 );
gtk_window_set_type_hint( GTK_WINDOW( w->window ), GDK_WINDOW_TYPE_HINT_DIALOG );
gtk_window_set_decorated( GTK_WINDOW( w->window ), FALSE );
gtk_window_set_skip_pager_hint( GTK_WINDOW( w->window ), TRUE );
gtk_window_set_transient_for( GTK_WINDOW( w->window ), GTK_WINDOW( dock_window ) );
gtk_window_set_keep_above( GTK_WINDOW( w->window ), TRUE );
gtk_widget_add_events( w->window, GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK );
g_signal_connect( G_OBJECT( w->window ), "focus-out-event", G_CALLBACK(tooltip_window_lose_focus), NULL );
//Add Dock icon box
pager_items_box = gtk_button_box_new( GTK_ORIENTATION_VERTICAL );
gtk_button_box_set_layout( GTK_BUTTON_BOX( pager_items_box ), GTK_BUTTONBOX_CENTER );
//gtk_button_box_set_child_non_homogeneous( GTK_BUTTON_BOX( dock_icons_box ), TRUE );
gtk_container_add( GTK_CONTAINER( w->window ), pager_items_box );
gtk_widget_show( pager_items_box );
//Pango stuff
char fontdesc[80];
pango_context = gtk_widget_create_pango_context( w->window );
sprintf( fontdesc, "Source Sans Pro Regular %ipx", (int)(SCALE_VALUE( 16 )) );
PangoFontDescription* font = pango_font_description_from_string( fontdesc );
pango_context_set_font_description( pango_context, font );
tooltip_window = w;
}
static bool
pango_load (Lisp_Font *f)
{
PangoLanguage *language;
PangoFontDescription *fontdesc;
PangoFont *font;
PangoFontMetrics *metrics;
if (pango_context)
{
language = pango_context_get_language (pango_context);
}
else
{
char *langname, *p;
#ifdef HAVE_PANGO_XFT
pango_context = pango_xft_get_context (dpy, screen_num);
#endif
langname = g_strdup (setlocale (LC_CTYPE, NULL));
p = strchr (langname, '.');
if (p)
*p = 0;
p = strchr (langname, '@');
if (p)
*p = 0;
language = pango_language_from_string (langname);
pango_context_set_language (pango_context, language);
g_free (langname);
}
fontdesc = pango_font_description_from_string (rep_STR (f->name));
if (!pango_font_description_get_family (fontdesc))
pango_font_description_set_family (fontdesc, "Sans");
if (pango_font_description_get_size (fontdesc) <= 0)
pango_font_description_set_size (fontdesc, 12 * PANGO_SCALE);
pango_context_set_font_description (pango_context, fontdesc);
font = pango_context_load_font (pango_context, fontdesc);
if (!font) {
pango_font_description_free(fontdesc);
return FALSE;
}
metrics = pango_font_get_metrics (font, language);
f->ascent = metrics->ascent / PANGO_SCALE;
f->descent = metrics->descent / PANGO_SCALE;
pango_font_metrics_unref (metrics);
f->font = fontdesc; /* We save the font description, not the font itself!
That's because it seems we can't recover it perfectly
later, and the layout routines want a description */
return TRUE;
}
static void
gst_time_overlay_init (GstTimeOverlay * overlay, GstTimeOverlayClass * klass)
{
PangoFontDescription *font_description;
GstTextOverlay *textoverlay;
PangoContext *context;
textoverlay = GST_TEXT_OVERLAY (overlay);
context = GST_TEXT_OVERLAY_CLASS (klass)->pango_context;
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family_static (font_description, "Monospace");
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
textoverlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
textoverlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
}
static void
workrave_timebar_init_ui(WorkraveTimebar *self)
{
WorkraveTimebarPrivate *priv = WORKRAVE_TIMEBAR_GET_PRIVATE(self);
priv->style_context = gtk_style_context_new();
GtkWidgetPath *path = gtk_widget_path_new();
gtk_widget_path_append_type(path, GTK_TYPE_BUTTON);
gtk_style_context_set_path(priv->style_context, path);
gtk_style_context_add_class(priv->style_context, GTK_STYLE_CLASS_TROUGH);
GdkScreen *screen = gdk_screen_get_default();
priv->pango_context = gdk_pango_context_get_for_screen(screen);
const PangoFontDescription *font_desc = gtk_style_context_get_font(priv->style_context, GTK_STATE_FLAG_ACTIVE);
pango_context_set_language(priv->pango_context, gtk_get_default_language());
pango_context_set_font_description(priv->pango_context, font_desc);
priv->pango_layout = pango_layout_new(priv->pango_context);
pango_layout_set_text(priv->pango_layout, "-9:59:59", -1);
pango_layout_get_pixel_size(priv->pango_layout, &priv->width, &priv->height);
priv->width = MAX(priv->width + 2 * MARGINX, MIN_HORIZONTAL_BAR_WIDTH);
priv->height = MAX(priv->height + 2 * MARGINY, MIN_HORIZONTAL_BAR_HEIGHT);
gtk_widget_path_free(path);
}
/*
* frame_update_titlebar_font
*
* Returns: void
* Description: updates the titlebar font from the pango context, should
* be called whenever the gtk style or font has changed
*/
void
frame_update_titlebar_font (decor_frame_t *frame)
{
const PangoFontDescription *font_desc;
PangoFontMetrics *metrics;
PangoLanguage *lang;
frame = gwd_decor_frame_ref (frame);
font_desc = get_titlebar_font (frame);
if (!font_desc)
{
GtkStyle *default_style;
default_style = gtk_widget_get_default_style ();
font_desc = default_style->font_desc;
}
pango_context_set_font_description (frame->pango_context, font_desc);
lang = pango_context_get_language (frame->pango_context);
metrics = pango_context_get_metrics (frame->pango_context, font_desc, lang);
frame->text_height = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
gwd_decor_frame_unref (frame);
pango_font_metrics_unref (metrics);
}
static void
gst_imx_g2d_time_overlay_class_init (GstImxG2DTimeOverlayClass * klass)
{
GstElementClass *gstelement_class;
GstImxG2DBaseTextOverlayClass *gsttextoverlay_class;
GObjectClass *gobject_class;
PangoContext *context;
PangoFontDescription *font_description;
gsttextoverlay_class = (GstImxG2DBaseTextOverlayClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class = (GObjectClass *) klass;
gst_element_class_set_static_metadata (gstelement_class, "Time overlay",
"Filter/Editor/Video",
"Overlays buffer time stamps on a video stream",
"Tim-Philipp Müller <*****@*****.**>");
gsttextoverlay_class->get_text = gst_imx_g2d_time_overlay_get_text;
gobject_class->set_property = gst_imx_g2d_time_overlay_set_property;
gobject_class->get_property = gst_imx_g2d_time_overlay_get_property;
g_object_class_install_property (gobject_class, PROP_TIME_LINE,
g_param_spec_enum ("time-mode", "Time Mode", "What time to show",
GST_TYPE_IMX_G2D_TIME_OVERLAY_TIME_LINE, DEFAULT_TIME_LINE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TIMEALIGNMENT,
g_param_spec_enum ("time-alignment", "Time alignment",
"Time alignment of the text", GST_TYPE_IMX_G2D_TIME_OVERLAY_TIMEALIGN,
DEFAULT_PROP_TIMEALIGNMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_mutex_lock (gsttextoverlay_class->pango_lock);
context = gsttextoverlay_class->pango_context;
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family_static (font_description, "Monospace");
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
g_mutex_unlock (gsttextoverlay_class->pango_lock);
}
HRESULT VwGraphicsCairo::GetTextStyleContext(HDC * pContext)
{
BEGIN_COM_METHOD;
if (m_context == NULL)
GetPangoLayoutHelper();
// if a font decription has been set ensure its associated with m_context.
if (m_pangoFontDescription != NULL)
pango_context_set_font_description(m_context, m_pangoFontDescription);
*pContext = reinterpret_cast<HDC>(m_context);
END_COM_METHOD(g_fact, IID_IVwGraphics);
}
GList *FontSupport::layoutText(const WFont& font,
const std::string& utf8,
std::vector<PangoGlyphString *>& glyphs,
int& width)
{
PANGO_LOCK;
enabledFontFormats = enabledFontFormats_;
FontMatch match = matchFont(font);
PangoAttrList *attrs = pango_attr_list_new();
pango_context_set_font_description(context_, match.pangoFontDescription());
GList *items
= pango_itemize(context_, utf8.c_str(), 0, utf8.length(), attrs, nullptr);
width = 0;
for (GList *elem = items; elem; elem = elem->next) {
PangoItem *item = (PangoItem *)elem->data;
PangoAnalysis *analysis = &item->analysis;
PangoGlyphString *gl = pango_glyph_string_new();
pango_shape(utf8.c_str() + item->offset, item->length, analysis, gl);
glyphs.push_back(gl);
if (device_) {
currentFont_ = analysis->font;
WTextItem textItem
= device_->measureText(WString::fromUTF8(utf8.substr(item->offset,
item->length)),
-1, false);
width += pangoUnitsFromDouble(textItem.width());
currentFont_ = nullptr;
} else
width += pango_glyph_string_get_width(gl);
}
pango_attr_list_unref(attrs);
return items;
}
static void
gst_clock_overlay_class_init (GstClockOverlayClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseTextOverlayClass *gsttextoverlay_class;
PangoContext *context;
PangoFontDescription *font_description;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gsttextoverlay_class = (GstBaseTextOverlayClass *) klass;
gobject_class->finalize = gst_clock_overlay_finalize;
gobject_class->set_property = gst_clock_overlay_set_property;
gobject_class->get_property = gst_clock_overlay_get_property;
gst_element_class_set_static_metadata (gstelement_class, "Clock overlay",
"Filter/Editor/Video",
"Overlays the current clock time on a video stream",
"Tim-Philipp Müller <*****@*****.**>");
gsttextoverlay_class->get_text = gst_clock_overlay_get_text;
g_object_class_install_property (gobject_class, PROP_TIMEFORMAT,
g_param_spec_string ("time-format", "Date/Time Format",
"Format to use for time and date value, as in strftime.",
DEFAULT_PROP_TIMEFORMAT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_mutex_lock (gsttextoverlay_class->pango_lock);
context = gsttextoverlay_class->pango_context;
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family_static (font_description, "Monospace");
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
g_mutex_unlock (gsttextoverlay_class->pango_lock);
}
/*
* frame_update_titlebar_font
*
* Returns: void
* Description: updates the titlebar font from the pango context, should
* be called whenever the gtk style or font has changed
*/
void
frame_update_titlebar_font (decor_frame_t *frame)
{
const PangoFontDescription *font_desc;
PangoFontDescription *free_font_desc;
PangoFontMetrics *metrics;
PangoLanguage *lang;
free_font_desc = NULL;
frame = gwd_decor_frame_ref (frame);
font_desc = get_titlebar_font (frame);
if (!font_desc)
{
GtkCssProvider *provider = gtk_css_provider_get_default ();
GtkStyleContext *context = gtk_style_context_new ();
GtkWidgetPath *path = gtk_widget_path_new ();
gtk_widget_path_prepend_type (path, GTK_TYPE_WIDGET);
gtk_style_context_set_path (context, path);
gtk_widget_path_free (path);
gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_FALLBACK);
gtk_style_context_get (context, GTK_STATE_FLAG_NORMAL, "font", &free_font_desc, NULL);
font_desc = (const PangoFontDescription *) free_font_desc;
}
pango_context_set_font_description (frame->pango_context, font_desc);
lang = pango_context_get_language (frame->pango_context);
metrics = pango_context_get_metrics (frame->pango_context, font_desc, lang);
frame->text_height = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
gwd_decor_frame_unref (frame);
pango_font_metrics_unref (metrics);
if (free_font_desc)
pango_font_description_free (free_font_desc);
}
static void
set_font(DiaRenderer *self, DiaFont *font, real height)
{
DiaPsFt2Renderer *renderer = DIA_PS_FT2_RENDERER(self);
if (renderer->current_font != font) {
if (renderer->current_font != NULL) {
dia_font_unref(renderer->current_font);
}
renderer->current_font = font;
/* Dammit! We have a random factor once again!
* And not only here but also in dia_font_scaled_build_layout() below ...
*/
renderer->current_height = height/**4.3*/;
dia_font_ref(font);
}
pango_context_set_font_description(dia_font_get_context(),
dia_font_get_description(font));
}
static void
reload_font ()
{
GList *para_list;
pango_context_set_font_description (context, font_description);
para_list = paragraphs;
while (para_list)
{
Paragraph *para = para_list->data;
pango_layout_context_changed (para->layout);
para_list = para_list->next;
}
if (layout)
gtk_widget_queue_resize (layout);
}
void gtk_glwidget_create_font(){
PangoFontDescription *font_desc;
PangoLayout *layout;
PangoRectangle log_rect;
int font_ascent_pango_units;
int font_descent_pango_units;
if ( _debug_font_created ) {
Error( "Programming error: gtk_glwidget_create_font() was already called; "
"you must call gtk_glwidget_destroy_font() before creating font again" );
}
_debug_font_created = 1;
font_map = pango_ft2_font_map_new();
pango_ft2_font_map_set_resolution( PANGO_FT2_FONT_MAP( font_map ), 72, 72 );
ft2_context = pango_font_map_create_context( PANGO_FONT_MAP( font_map ));
font_desc = pango_font_description_from_string( font_string );
pango_font_description_set_size( font_desc, font_height * PANGO_SCALE );
pango_context_set_font_description( ft2_context, font_desc );
pango_font_description_free( font_desc );
layout = pango_layout_new( ft2_context );
// I don't believe that's standard preprocessor syntax?
#if !PANGO_VERSION_CHECK( 1,22,0 )
PangoLayoutIter *iter;
iter = pango_layout_get_iter( layout );
font_ascent_pango_units = pango_layout_iter_get_baseline( iter );
pango_layout_iter_free( iter );
#else
font_ascent_pango_units = pango_layout_get_baseline( layout );
#endif
pango_layout_get_extents( layout, NULL, &log_rect );
g_object_unref( G_OBJECT( layout ) );
font_descent_pango_units = log_rect.height - font_ascent_pango_units;
font_ascent = PANGO_PIXELS_CEIL( font_ascent_pango_units );
font_descent = PANGO_PIXELS_CEIL( font_descent_pango_units );
y_offset_bitmap_render_pango_units = ( font_ascent * PANGO_SCALE ) - font_ascent_pango_units;
}
FontSupport::FontMatch FontSupport::matchFont(const WFont& f) const
{
if (wtFont_ == f)
return FontMatch(matchFont_);
wtFont_ = f;
PANGO_LOCK;
PangoFontDescription *desc = createFontDescription(f);
if (matchFont_)
g_object_unref(matchFont_);
matchFont_ = pango_font_map_load_font(pangoFontMap, context_, desc);
pango_context_set_font_description(context_, desc); // for layoutText()
pango_font_description_free(desc);
return FontMatch(matchFont_);
}
static void
workrave_timebar_init_ui(WorkraveTimebar *self)
{
WorkraveTimebarPrivate *priv = WORKRAVE_TIMEBAR_GET_PRIVATE(self);
GdkScreen *screen = gdk_screen_get_default();
priv->pango_context = gdk_pango_context_get_for_screen(screen);
const PangoFontDescription *font_desc = pango_font_description_from_string("Sans 10");
pango_context_set_language(priv->pango_context, gtk_get_default_language());
pango_context_set_font_description(priv->pango_context, font_desc);
priv->pango_layout = pango_layout_new(priv->pango_context);
pango_layout_set_text(priv->pango_layout, "-9:59:59", -1);
pango_layout_get_pixel_size(priv->pango_layout, &priv->width, &priv->height);
priv->width = MAX(priv->width + 2 * MARGINX, MIN_HORIZONTAL_BAR_WIDTH);
priv->height = MAX(priv->height + 2 * MARGINY, MIN_HORIZONTAL_BAR_HEIGHT);
}
static void
gst_clock_overlay_class_init (GstClockOverlayClass * klass)
{
GObjectClass *gobject_class;
GstTextOverlayClass *gsttextoverlay_class;
PangoContext *context;
PangoFontDescription *font_description;
gobject_class = (GObjectClass *) klass;
gsttextoverlay_class = (GstTextOverlayClass *) klass;
gobject_class->finalize = gst_clock_overlay_finalize;
gobject_class->set_property = gst_clock_overlay_set_property;
gobject_class->get_property = gst_clock_overlay_get_property;
gsttextoverlay_class->get_text = gst_clock_overlay_get_text;
g_object_class_install_property (gobject_class, PROP_TIMEFORMAT,
g_param_spec_string ("time-format", "Date/Time Format",
"Format to use for time and date value, as in strftime.",
DEFAULT_PROP_TIMEFORMAT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_mutex_lock (GST_TEXT_OVERLAY_CLASS (klass)->pango_lock);
context = GST_TEXT_OVERLAY_CLASS (klass)->pango_context;
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family_static (font_description, "Monospace");
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
g_mutex_unlock (GST_TEXT_OVERLAY_CLASS (klass)->pango_lock);
}
static void
hippo_canvas_context_win_init(HippoCanvasContextWin *canvas_win)
{
PangoFontDescription *desc;
canvas_win->pointer = HIPPO_CANVAS_POINTER_UNSET;
/* canvas_win->pango = pango_win32_get_context(); */
PangoCairoFontMap *font_map = (PangoCairoFontMap*) pango_cairo_font_map_get_default();
canvas_win->pango = pango_cairo_font_map_create_context(font_map);
g_object_unref((void*) font_map);
desc = pango_font_description_new();
// Note that this matches the web font in our site.css
// We only set Arial instead of Arial, sans-serif because
// pango cairo doesn't like a font list here.
pango_font_description_set_family_static(desc, "Arial");
pango_font_description_set_absolute_size(desc, 12 * PANGO_SCALE);
// FIXME on my laptop (Visual Studio 2005) this has crashed Pango with a g_error(),
// but it seems to have mysteriously gone away.
pango_context_set_font_description(canvas_win->pango, desc);
pango_font_description_free(desc);
}
static void
hippo_canvas_context_win_init(HippoCanvasContextWin *canvas_win)
{
PangoFontDescription *desc;
canvas_win->pointer = HIPPO_CANVAS_POINTER_UNSET;
/* canvas_win->pango = pango_win32_get_context(); */
PangoCairoFontMap *font_map = (PangoCairoFontMap*) pango_cairo_font_map_get_default();
canvas_win->pango = pango_cairo_font_map_create_context(font_map);
g_object_unref((void*) font_map);
desc = pango_font_description_new();
// Sans is resolved in the pango.aliases we install; since the first element
// is already "Arial", we specify just Sans here, rather than the "Arial,sans-serif"
// we use in site.css.
pango_font_description_set_family_static(desc, "Sans");
pango_font_description_set_absolute_size(desc, 12 * PANGO_SCALE);
// FIXME on my laptop (Visual Studio 2005) this has crashed Pango with a g_error(),
// but it seems to have mysteriously gone away.
pango_context_set_font_description(canvas_win->pango, desc);
pango_font_description_free(desc);
}
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;
}
JNIEXPORT jobject JNICALL
Java_gnu_java_awt_peer_gtk_GdkFontPeer_getGlyphVector
(JNIEnv *env, jobject self,
jstring chars,
jobject font,
jobject fontRenderContext)
{
struct peerfont *pfont = NULL;
GList *items = NULL, *i = NULL;
gchar *str = NULL;
int len, j;
double *native_extents;
int *native_codes;
jintArray java_codes = NULL;
jdoubleArray java_extents = NULL;
gdk_threads_enter ();
pfont = (struct peerfont *)NSA_GET_FONT_PTR (env, self);
g_assert (pfont != NULL);
len = (*gdk_env())->GetStringUTFLength (env, chars);
str = (gchar *)(*env)->GetStringUTFChars (env, chars, NULL);
g_assert (str != NULL);
if (attrs == NULL)
attrs = pango_attr_list_new ();
if (len > 0 && str[len-1] == '\0')
len--;
items = pango_itemize (pfont->ctx, str, 0, len, attrs, NULL);
i = g_list_first (items);
if (i == NULL)
{
java_extents = (*env)->NewDoubleArray (env, 0);
java_codes = (*env)->NewIntArray (env, 0);
}
else
{
PangoGlyphString *glyphs;
PangoItem *item = (PangoItem *)i->data;
pango_context_set_font_description (pfont->ctx, pfont->desc);
pango_context_set_language (pfont->ctx, gtk_get_default_language());
pango_context_load_font (pfont->ctx, pfont->desc);
glyphs = pango_glyph_string_new ();
g_assert (glyphs != NULL);
pango_shape (str + item->offset, item->length,
&(item->analysis), glyphs);
if (glyphs->num_glyphs > 0)
{
int x = 0;
double scale = ((double) PANGO_SCALE);
java_extents = (*env)->NewDoubleArray (env, glyphs->num_glyphs * NUM_GLYPH_METRICS);
java_codes = (*env)->NewIntArray (env, glyphs->num_glyphs);
native_extents = (*env)->GetDoubleArrayElements (env, java_extents, NULL);
native_codes = (*env)->GetIntArrayElements (env, java_codes, NULL);
for (j = 0; j < glyphs->num_glyphs; ++j)
{
PangoRectangle ink;
PangoRectangle logical;
PangoGlyphGeometry *geom = &glyphs->glyphs[j].geometry;
pango_font_get_glyph_extents (pfont->font,
glyphs->glyphs[j].glyph,
&ink, &logical);
native_codes[j] = glyphs->glyphs[j].glyph;
native_extents[ GLYPH_LOG_X(j) ] = (logical.x) / scale;
native_extents[ GLYPH_LOG_Y(j) ] = (- logical.y) / scale;
native_extents[ GLYPH_LOG_WIDTH(j) ] = (logical.width) / scale;
native_extents[ GLYPH_LOG_HEIGHT(j) ] = (logical.height) / scale;
native_extents[ GLYPH_INK_X(j) ] = (ink.x) / scale;
native_extents[ GLYPH_INK_Y(j) ] = (- ink.y) / scale;
native_extents[ GLYPH_INK_WIDTH(j) ] = (ink.width) / scale;
native_extents[ GLYPH_INK_HEIGHT(j) ] = (ink.height) / scale;
native_extents[ GLYPH_POS_X(j) ] = (x + geom->x_offset) / scale;
native_extents[ GLYPH_POS_Y(j) ] = ( - geom->y_offset) / scale;
x += geom->width;
}
(*env)->ReleaseDoubleArrayElements (env, java_extents, native_extents, 0);
(*env)->ReleaseIntArrayElements (env, java_codes, native_codes, 0);
}
pango_glyph_string_free (glyphs);
}
(*env)->ReleaseStringUTFChars (env, chars, str);
for (i = g_list_first (items); i != NULL; i = g_list_next (i))
g_free (i->data);
g_list_free (items);
gdk_threads_leave ();
return (*env)->NewObject (env,
glyphVector_class,
glyphVector_ctor,
java_extents, java_codes,
font, fontRenderContext);
}
JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GdkFontPeer_setFont
(JNIEnv *env, jobject self, jstring family_name_str, jint style_int, jint size, jboolean useGraphics2D)
{
struct peerfont *pfont = NULL;
char const *family_name = NULL;
enum java_awt_font_style style;
PangoFT2FontMap *ft2_map;
gdk_threads_enter ();
style = (enum java_awt_font_style) style_int;
g_assert (self != NULL);
pfont = (struct peerfont *)NSA_GET_FONT_PTR (env, self);
g_assert (pfont != NULL);
if (pfont->ctx != NULL)
g_object_unref (pfont->ctx);
if (pfont->font != NULL)
g_object_unref (pfont->font);
if (pfont->desc != NULL)
pango_font_description_free (pfont->desc);
pfont->desc = pango_font_description_new ();
g_assert (pfont->desc != NULL);
family_name = (*env)->GetStringUTFChars(env, family_name_str, 0);
g_assert (family_name != NULL);
pango_font_description_set_family (pfont->desc, family_name);
(*env)->ReleaseStringUTFChars(env, family_name_str, family_name);
if (style & java_awt_font_BOLD)
pango_font_description_set_weight (pfont->desc, PANGO_WEIGHT_BOLD);
if (style & java_awt_font_ITALIC)
pango_font_description_set_style (pfont->desc, PANGO_STYLE_ITALIC);
if (useGraphics2D)
{
pango_font_description_set_size (pfont->desc, size * PANGO_SCALE);
if (pfont->ctx == NULL)
{
ft2_map = PANGO_FT2_FONT_MAP(pango_ft2_font_map_for_display ());
pfont->ctx = pango_ft2_font_map_create_context (ft2_map);
}
}
else
{
/* GDK uses a slightly different DPI setting. */
pango_font_description_set_size (pfont->desc,
size * dpi_conversion_factor);
if (pfont->ctx == NULL)
pfont->ctx = gdk_pango_context_get();
}
g_assert (pfont->ctx != NULL);
if (pfont->font != NULL)
{
g_object_unref (pfont->font);
pfont->font = NULL;
}
pango_context_set_font_description (pfont->ctx, pfont->desc);
pango_context_set_language (pfont->ctx, gtk_get_default_language());
pfont->font = pango_context_load_font (pfont->ctx, pfont->desc);
g_assert (pfont->font != NULL);
if (pfont->layout == NULL)
pfont->layout = pango_layout_new (pfont->ctx);
g_assert (pfont->layout != NULL);
gdk_threads_leave ();
}
PangoFont* createPangoFontForFont(const wxFont* wxfont)
{
ASSERT(wxfont && wxfont->Ok());
const char* face = wxfont->GetFaceName().mb_str(wxConvUTF8);
char const* families[] = {
face,
0
};
switch (wxfont->GetFamily()) {
case wxFONTFAMILY_ROMAN:
families[1] = "serif";
break;
case wxFONTFAMILY_SWISS:
families[1] = "sans";
break;
case wxFONTFAMILY_MODERN:
families[1] = "monospace";
break;
default:
families[1] = "sans";
}
PangoFontDescription* description = pango_font_description_new();
pango_font_description_set_absolute_size(description, wxfont->GetPointSize() * PANGO_SCALE);
PangoFont* pangoFont = 0;
PangoContext* pangoContext = 0;
switch (wxfont->GetWeight()) {
case wxFONTWEIGHT_LIGHT:
pango_font_description_set_weight(description, PANGO_WEIGHT_LIGHT);
break;
case wxFONTWEIGHT_NORMAL:
pango_font_description_set_weight(description, PANGO_WEIGHT_NORMAL);
break;
case wxFONTWEIGHT_BOLD:
pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
break;
}
switch (wxfont->GetStyle()) {
case wxFONTSTYLE_NORMAL:
pango_font_description_set_style(description, PANGO_STYLE_NORMAL);
break;
case wxFONTSTYLE_ITALIC:
pango_font_description_set_style(description, PANGO_STYLE_ITALIC);
break;
case wxFONTSTYLE_SLANT:
pango_font_description_set_style(description, PANGO_STYLE_OBLIQUE);
break;
}
PangoFontMap* fontMap = pangoFontMap();
pangoContext = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(fontMap));
for (unsigned i = 0; !pangoFont && i < G_N_ELEMENTS(families); i++) {
pango_font_description_set_family(description, families[i]);
pango_context_set_font_description(pangoContext, description);
pangoFont = pango_font_map_load_font(fontMap, pangoContext, description);
}
pango_font_description_free(description);
return pangoFont;
}
FontPlatformData::FontPlatformData(const FontDescription& fontDescription, const UChar *characters, int length)
: m_context(0)
, m_font(0)
, m_size(fontDescription.computedSize())
, m_syntheticBold(false)
, m_syntheticOblique(false)
, m_scaledFont(0)
{
FontPlatformData::init();
const UChar character = characters[0];
char const *family;
switch (fontDescription.genericFamily()) {
case FontDescription::SerifFamily:
family = "serif";
break;
case FontDescription::SansSerifFamily:
family = "sans";
break;
case FontDescription::MonospaceFamily:
family = "monospace";
break;
case FontDescription::NoFamily:
case FontDescription::StandardFamily:
default:
family = "sans";
break;
}
m_context = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(m_fontMap));
PangoFontDescription* description = pango_font_description_new();
pango_font_description_set_absolute_size(description, fontDescription.computedSize() * PANGO_SCALE);
if (fontDescription.weight() >= FontWeight600)
pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
if (fontDescription.italic())
pango_font_description_set_style(description, PANGO_STYLE_ITALIC);
pango_font_description_set_family(description, family);
pango_context_set_font_description(m_context, description);
PangoFontset *fset = pango_font_map_load_fontset (m_fontMap, m_context, description, NULL);
// Get the font from the fontset which contains the best glyph for this character
m_font = pango_fontset_get_font(fset, (guint)character);
#if PANGO_VERSION_CHECK(1,18,0)
if (m_font)
m_scaledFont = cairo_scaled_font_reference(pango_cairo_font_get_scaled_font(PANGO_CAIRO_FONT(m_font)));
#else
// This compatibility code for older versions of Pango is not well-tested.
if (m_font) {
PangoFcFont* fcfont = PANGO_FC_FONT(m_font);
cairo_font_face_t* face = cairo_ft_font_face_create_for_pattern(fcfont->font_pattern);
double size;
if (FcPatternGetDouble(fcfont->font_pattern, FC_PIXEL_SIZE, 0, &size) != FcResultMatch)
size = 12.0;
cairo_matrix_t fontMatrix;
cairo_matrix_init_scale(&fontMatrix, size, size);
cairo_font_options_t* fontOptions;
if (pango_cairo_context_get_font_options(m_context))
fontOptions = cairo_font_options_copy(pango_cairo_context_get_font_options(m_context));
else
fontOptions = cairo_font_options_create();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
m_scaledFont = cairo_scaled_font_create(face, &fontMatrix, &ctm, fontOptions);
cairo_font_options_destroy(fontOptions);
cairo_font_face_destroy(face);
}
#endif
pango_font_description_free(description);
}
static gboolean
draw (GtkWidget *widget,
cairo_t *cr,
gpointer data)
{
GtkAllocation allocation;
GdkGLContext *glcontext = gtk_widget_get_gl_context (widget);
GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget);
PangoContext *widget_context;
PangoFontDescription *font_desc;
PangoLayout *layout;
PangoRectangle logical_rect;
GLfloat text_w, text_h;
GLfloat tangent_h;
gtk_widget_get_allocation (widget, &allocation);
/* Font */
widget_context = gtk_widget_get_pango_context (widget);
font_desc = pango_context_get_font_description (widget_context);
pango_font_description_set_size (font_desc, 24 * PANGO_SCALE);
pango_context_set_font_description (ft2_context, font_desc);
/* Text layout */
layout = pango_layout_new (ft2_context);
pango_layout_set_width (layout, PANGO_SCALE * allocation.width);
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
pango_layout_set_text (layout, text, -1);
/*** OpenGL BEGIN ***/
if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext))
return FALSE;
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glCallList (1);
/* Text color */
glColor3f (1.0, 0.9, 0.0);
/* Text position */
pango_layout_get_extents (layout, NULL, &logical_rect);
text_w = PANGO_PIXELS (logical_rect.width);
text_h = PANGO_PIXELS (logical_rect.height);
/*
* tangent = Z_NEAR * tan (FOVY_2 * G_PI / 180.0)
* w = allocation.width
* h = allocation.height
*
* x = -1.0 * (text_w/w) * tangent * (w/h) = -text_w * tangent / h
* y = -1.0 * (text_h/h) * tangent = -text_h * tangent / h
* z = Z_NEAR
*/
tangent_h = Z_NEAR * tan (FOVY_2 * G_PI / 180.0);
tangent_h /= allocation.height;
glRasterPos3f (-text_w * tangent_h,
-text_h * tangent_h,
Z_NEAR);
/* Render text */
gl_pango_ft2_render_layout (layout);
if (gdk_gl_drawable_is_double_buffered (gldrawable))
gdk_gl_drawable_swap_buffers (gldrawable);
else
glFlush ();
gdk_gl_drawable_gl_end (gldrawable);
/*** OpenGL END ***/
g_object_unref (G_OBJECT (layout));
return TRUE;
}
FontPlatformData::FontPlatformData(const FontDescription& fontDescription, const AtomicString& familyName)
: m_context(0)
, m_font(0)
, m_size(fontDescription.computedSize())
, m_syntheticBold(false)
, m_syntheticOblique(false)
, m_scaledFont(0)
{
FontPlatformData::init();
CString stored_family = familyName.string().utf8();
char const* families[] = {
stored_family.data(),
NULL
};
switch (fontDescription.genericFamily()) {
case FontDescription::SerifFamily:
families[1] = "serif";
break;
case FontDescription::SansSerifFamily:
families[1] = "sans";
break;
case FontDescription::MonospaceFamily:
families[1] = "monospace";
break;
case FontDescription::NoFamily:
case FontDescription::StandardFamily:
default:
families[1] = "sans";
break;
}
PangoFontDescription* description = pango_font_description_new();
pango_font_description_set_absolute_size(description, fontDescription.computedSize() * PANGO_SCALE);
// FIXME: Map all FontWeight values to Pango font weights.
if (fontDescription.weight() >= FontWeight600)
pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
if (fontDescription.italic())
pango_font_description_set_style(description, PANGO_STYLE_ITALIC);
#if PANGO_VERSION_CHECK(1,21,5) // deprecated in 1.21
m_context = pango_font_map_create_context(m_fontMap);
#else
m_context = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(m_fontMap));
#endif
for (unsigned int i = 0; !m_font && i < G_N_ELEMENTS(families); i++) {
pango_font_description_set_family(description, families[i]);
pango_context_set_font_description(m_context, description);
m_font = pango_font_map_load_font(m_fontMap, m_context, description);
}
#if PANGO_VERSION_CHECK(1,18,0)
if (m_font)
m_scaledFont = cairo_scaled_font_reference(pango_cairo_font_get_scaled_font(PANGO_CAIRO_FONT(m_font)));
#else
// This compatibility code for older versions of Pango is not well-tested.
if (m_font) {
PangoFcFont* fcfont = PANGO_FC_FONT(m_font);
cairo_font_face_t* face = cairo_ft_font_face_create_for_pattern(fcfont->font_pattern);
double size;
if (FcPatternGetDouble(fcfont->font_pattern, FC_PIXEL_SIZE, 0, &size) != FcResultMatch)
size = 12.0;
cairo_matrix_t fontMatrix;
cairo_matrix_init_scale(&fontMatrix, size, size);
cairo_font_options_t* fontOptions;
if (pango_cairo_context_get_font_options(m_context))
fontOptions = cairo_font_options_copy(pango_cairo_context_get_font_options(m_context));
else
fontOptions = cairo_font_options_create();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
m_scaledFont = cairo_scaled_font_create(face, &fontMatrix, &ctm, fontOptions);
cairo_font_options_destroy(fontOptions);
cairo_font_face_destroy(face);
}
#endif
pango_font_description_free(description);
}
unsigned Gosu::pango::textWidth(const std::wstring& text,
const std::wstring& fontFace, unsigned fontHeight,
unsigned fontFlags)
{
g_type_init();
int dpi_x = 100, dpi_y = 100;
context = pango_ft2_get_context(dpi_x, dpi_y);
pango_context_set_language(context, pango_language_from_string ("en_US"));
PangoDirection init_dir = PANGO_DIRECTION_LTR;
pango_context_set_base_dir(context, init_dir);
// static PangoFontDescription *font_description;
font_description = pango_font_description_new();
pango_font_description_set_family(font_description,
g_strdup(narrow(fontFace).c_str()));
pango_font_description_set_style(font_description,
(fontFlags & ffItalic) ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL);
pango_font_description_set_variant(font_description, PANGO_VARIANT_NORMAL);
pango_font_description_set_weight(font_description,
(fontFlags & ffBold) ? PANGO_WEIGHT_BOLD : PANGO_WEIGHT_NORMAL);
pango_font_description_set_stretch(font_description, PANGO_STRETCH_NORMAL);
int init_scale = int(fontHeight/2.0 + 0.5);
pango_font_description_set_size(font_description, init_scale * PANGO_SCALE);
pango_context_set_font_description(context, font_description);
layout = pango_layout_new(context);
if(fontFlags & ffUnderline)
{
// PangoAttribute *attr;
attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
attr->start_index = 0;
attr->end_index = text.length();
// PangoAttrList* attrList;
attrList = pango_attr_list_new();
pango_attr_list_insert(attrList, attr);
pango_layout_set_attributes(layout, attrList);
pango_attr_list_unref(attrList);
}
// IMPR: Catch errors? (Last NULL-Pointer)
gchar* utf8Str = g_ucs4_to_utf8((gunichar*)text.c_str(), text.length(), NULL, NULL, NULL);
pango_layout_set_text(layout, utf8Str, -1);
g_free(utf8Str);
PangoDirection base_dir = pango_context_get_base_dir(context);
pango_layout_set_alignment(layout,
base_dir == PANGO_DIRECTION_LTR ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
pango_layout_set_width(layout, -1);
PangoRectangle logical_rect;
pango_layout_get_pixel_extents(layout, NULL, &logical_rect);
height = logical_rect.height;
width = logical_rect.width;
return width;
}
int
main (int argc, char **argv)
{
char *text;
GtkWidget *window;
GtkWidget *scrollwin;
GtkWidget *vbox, *hbox;
GtkWidget *frame;
GtkWidget *checkbutton;
gtk_init (&argc, &argv);
if (argc != 2)
{
fprintf (stderr, "Usage: %s FILE\n", g_get_prgname ());
exit(1);
}
/* Create the list of paragraphs from the supplied file
*/
text = read_file (argv[1]);
if (!text)
exit(1);
context = pango_win32_get_context ();
paragraphs = split_paragraphs (text);
pango_context_set_language (context, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
font_description = pango_font_description_new ();
pango_font_description_set_family(font_description, "sans");
pango_font_description_set_size(font_description, 16 * PANGO_SCALE);
#if 0 /* default init ok? */
font_description.style = PANGO_STYLE_NORMAL;
font_description.variant = PANGO_VARIANT_NORMAL;
font_description.weight = 500;
font_description.stretch = PANGO_STRETCH_NORMAL;
#endif
pango_context_set_font_description (context, font_description);
/* Create the user interface
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_add (GTK_CONTAINER (window), vbox);
hbox = make_font_selector ();
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
scrollwin = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrollwin),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (vbox), scrollwin, TRUE, TRUE, 0);
layout = gtk_layout_new (NULL, NULL);
gtk_widget_set_events (layout, GDK_BUTTON_PRESS_MASK);
gtk_widget_set_app_paintable (layout, TRUE);
gtk_signal_connect (GTK_OBJECT (layout), "size_allocate",
GTK_SIGNAL_FUNC (size_allocate), paragraphs);
gtk_signal_connect (GTK_OBJECT (layout), "expose_event",
GTK_SIGNAL_FUNC (expose), paragraphs);
gtk_signal_connect (GTK_OBJECT (layout), "draw",
GTK_SIGNAL_FUNC (draw), paragraphs);
gtk_signal_connect (GTK_OBJECT (layout), "button_press_event",
GTK_SIGNAL_FUNC (button_press), paragraphs);
#if GTK_CHECK_VERSION (1,3,2)
gtk_widget_set_double_buffered (layout, FALSE);
#endif
gtk_container_add (GTK_CONTAINER (scrollwin), layout);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
message_label = gtk_label_new ("Current char:");
gtk_misc_set_padding (GTK_MISC (message_label), 1, 1);
gtk_misc_set_alignment (GTK_MISC (message_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (frame), message_label);
checkbutton = gtk_check_button_new_with_label ("Use RTL global direction");
gtk_signal_connect (GTK_OBJECT (checkbutton), "toggled",
GTK_SIGNAL_FUNC (checkbutton_toggled), NULL);
gtk_box_pack_start (GTK_BOX (vbox), checkbutton, FALSE, FALSE, 0);
gtk_widget_show_all (window);
gtk_main ();
return 0;
}
static GLboolean
glgdGraphNodeDrawLabel(glgdGraph *graph, glgdNode *node)
{
int i;
GLint width;
GLuint texture;
GLfloat s0, s1, t0, t1;
GLfloat a;
guint32 alpha, rgb, *t;
guint8 *row, *row_end;
PangoContext *pangoContext;
PangoFontDescription *fontDesc;
PangoLayout *layout;
PangoRectangle extents;
FT_Bitmap bitmap;
glgdVec2 center, pnt[2];
glgdStroke *stroke;
glgdTexture *tex;
if (graph && graph->pangoFT2Context)
{
stroke = &graph->stroke;
tex = &graph->textTexture;
if (tex->width <= 0 || tex->height <= 0)
{
glgdTrace(1, "Invalid texture dimension (%d,%d)\n", tex->width,
tex->height);
return GL_FALSE;
}
/* Pango font description */
width = 10 * _PANGO_SCALE;
pangoContext = gtk_widget_get_pango_context(graph->gtkWindow);
fontDesc = pango_context_get_font_description(pangoContext);
pango_font_description_set_size(fontDesc, PANGO_SCALE * width);
pango_font_description_set_weight(fontDesc, PANGO_WEIGHT_NORMAL);
pango_context_set_font_description(graph->pangoFT2Context, fontDesc);
/* Text layout */
width = (int)graph->dim[0] * _PANGO_SCALE;
layout = graph->layout;
pango_layout_set_width(layout, PANGO_SCALE * width);
pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
pango_layout_set_text(layout, node->label, -1);
pango_layout_get_extents(layout, NULL, &extents);
if (extents.width == 0 || extents.height == 0)
{
glgdTrace(1, "Invalid extents (%d,%d)\n", extents.width,
extents.height);
return GL_FALSE;
}
/* Bitmap creation */
bitmap.rows = PANGO_PIXELS(extents.height);
bitmap.width = PANGO_PIXELS(extents.width);
if (bitmap.width > tex->width || bitmap.rows > tex->height)
{
return GL_FALSE;
}
bitmap.pitch = bitmap.width;
bitmap.buffer = GLGD_MALLOC(bitmap.rows * bitmap.width);
bitmap.num_grays = 256;
bitmap.pixel_mode = ft_pixel_mode_grays;
memset(bitmap.buffer, 0, bitmap.rows * bitmap.width);
pango_ft2_render_layout(&bitmap, layout, PANGO_PIXELS(-extents.x), 0);
#if !defined(GL_VERSION_1_2) && G_BYTE_ORDER == G_LITTLE_ENDIAN
rgb =((guint32)(stroke->col[0] * 255.0)) |
(((guint32)(stroke->col[1] * 255.0)) << 8) |
(((guint32)(stroke->col[2] * 255.0)) << 16);
#else
rgb =(((guint32)(stroke->col[0] * 255.0)) << 24) |
(((guint32)(stroke->col[1] * 255.0)) << 16) |
(((guint32)(stroke->col[2] * 255.0)) << 8);
#endif
/* Bitmap transfer to <glgdTexture> */
a = stroke->col[3];
alpha = (guint32)(255.0 * a);
row = bitmap.buffer + bitmap.rows * bitmap.width;
row_end = bitmap.buffer;
t = (guint32 *)tex->texels;
if (graph->flags & GLGDGRAPH_FLAG_PANGOBOLD)
{
do
{
row -= bitmap.width;
for (i=0; i<bitmap.width; i++)
{
#if !defined(GL_VERSION_1_2) && G_BYTE_ORDER == G_LITTLE_ENDIAN
if (row[i] > 0)
*t++ = rgb | (alpha << 24);
else
*t++ = rgb;
#else
if (row[i] > 0)
*t++ = rgb | alpha;
else
*t++ = rgb;
#endif
}
}
while (row != row_end);
}
else
{
do
{
row -= bitmap.width;
for (i=0; i<bitmap.width; i++)
{
#if !defined(GL_VERSION_1_2) && G_BYTE_ORDER == G_LITTLE_ENDIAN
*t++ = rgb | ((guint32)(a * row[i]) << 24);
#else
*t++ = rgb | (guint32)(a * row[i]);
#endif
}
}
while (row != row_end);
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glBindTexture(GL_TEXTURE_2D, tex->name);
#if !defined(GL_VERSION_1_2)
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width, bitmap.rows,
GL_RGBA, GL_UNSIGNED_BYTE, tex->texels);
#else
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width, bitmap.rows,
GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, tex->texels);
#endif
/* <glgdTexture> render */
s0 = 0.0;
s1 = (GLdouble)bitmap.width / (GLdouble)tex->width;
t0 = 0.0;
t1 = (GLdouble)bitmap.rows / (GLdouble)tex->height;
center[0] = node->pos[0] + GLGD_HALF(graph->dim[0]);
center[1] = node->pos[1] + GLGD_HALF(graph->dim[1]);
pnt[0][0] = center[0] - GLGD_HALF(bitmap.width / _PANGO_SCALE);
pnt[0][1] = center[1] - GLGD_HALF(bitmap.rows / _PANGO_SCALE);
pnt[1][0] = center[0] + GLGD_HALF(bitmap.width / _PANGO_SCALE);
pnt[1][1] = center[1] + GLGD_HALF(bitmap.rows / _PANGO_SCALE);
GLGD_FREE(bitmap.buffer);
glColor3d(stroke->col[0], stroke->col[1], stroke->col[2]);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D, tex->name);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glBegin(GL_QUADS);
glTexCoord2f(s0, t0);
glVertex3f(pnt[0][0], pnt[0][1], 0.0);
glTexCoord2f(s0, t1);
glVertex3f(pnt[0][0], pnt[1][1], 0.0);
glTexCoord2f(s1, t1);
glVertex3f(pnt[1][0], pnt[1][1], 0.0);
glTexCoord2f(s1, t0);
glVertex3f(pnt[1][0], pnt[0][1], 0.0);
glEnd();
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
return GL_TRUE;
}
return GL_FALSE;
}
