C++ (Cpp) pango_font_find_shaper Examples

Example #1

File: GtkPaintContext.cpp Project: xufooo/fbreader-e2-test

void GtkPaintContext::updatePixmap(GtkWidget *area, int w, int h) {
	if ((myPixmap != 0) && ((myWidth != w) || (myHeight != h))) {
		gdk_pixmap_unref(myPixmap);
		myPixmap = 0;
		if (myTextGC != 0) {
			gdk_gc_unref(myTextGC);
			gdk_gc_unref(myFillGC);
			gdk_gc_unref(myBackGC);
			myTextGC = 0;
			myFillGC = 0;
			myBackGC = 0;
		}
	}

	if (myPixmap == 0) {
		myWidth = w;
		myHeight = h;
		myPixmap = gdk_pixmap_new(area->window, myWidth, myHeight, gdk_drawable_get_depth(area->window));
	}

	if (myTextGC == 0) {
		myTextGC = gdk_gc_new(myPixmap);
		myFillGC = gdk_gc_new(myPixmap);
		myBackGC = gdk_gc_new(myPixmap);
	}

	if (myContext == 0) {
		myContext = gtk_widget_get_pango_context(area);
		if (myFontDescription != 0) {
			myAnalysis.font = pango_context_load_font(myContext, myFontDescription);
			myAnalysis.shape_engine = pango_font_find_shaper(myAnalysis.font, 0, 0);
		}
	}
}

Example #2

File: rbpangofont.c Project: Vasfed/pango

static VALUE
rg_find_shaper(VALUE self, VALUE language, VALUE ch)
{
    return GOBJ2RVAL(pango_font_find_shaper(_SELF(self),
                                            RVAL2PANGOLANGUAGE(language),
                                            NUM2UINT(ch)));
}

Example #3

File: ZLGtkPaintContext.cpp Project: ALEXGUOQ/FBReader

void ZLGtkPaintContext::setFont(const std::string &family, int size, bool bold, bool italic) {
	bool fontChanged = false;

	if (myFontDescription == 0) {
		myFontDescription = pango_font_description_new();
		fontChanged = true;
	}

	const char *oldFamily = pango_font_description_get_family(myFontDescription);
	if ((oldFamily == 0) || (family != oldFamily)) {
		pango_font_description_set_family(myFontDescription, family.c_str());
		fontChanged = true;
	}

	int newSize = size * PANGO_SCALE;
	if (pango_font_description_get_size(myFontDescription) != newSize) {
		pango_font_description_set_size(myFontDescription, newSize);
		fontChanged = true;
	}

	PangoWeight newWeight = bold ? PANGO_WEIGHT_BOLD : PANGO_WEIGHT_NORMAL;
	if (pango_font_description_get_weight(myFontDescription) != newWeight) {
		pango_font_description_set_weight(myFontDescription, newWeight);
		fontChanged = true;
	}

	PangoStyle newStyle = italic ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL;
	if (pango_font_description_get_style(myFontDescription) != newStyle) {
		pango_font_description_set_style(myFontDescription, newStyle);
		fontChanged = true;
	}

	if (fontChanged) {
		if (myContext != 0) {
			myAnalysis.font = pango_context_load_font(myContext, myFontDescription);
			myAnalysis.shape_engine = pango_font_find_shaper(myAnalysis.font, 0, 0);
			PangoFontMetrics *metrics = pango_font_get_metrics(myAnalysis.font, myAnalysis.language);
			myDescent = pango_font_metrics_get_descent(metrics) / PANGO_SCALE;
		}
		myStringHeight = -1;
		mySpaceWidth = -1;
	}
}