void tooltip_update_geometry()
{
	Panel *panel = g_tooltip.panel;
	int screen_width = server.monitors[panel->monitor].x + server.monitors[panel->monitor].width;

	cairo_surface_t *cs = cairo_xlib_surface_create(server.display, g_tooltip.window, server.visual, width, height);
	cairo_t *c = cairo_create(cs);
	PangoLayout *layout = pango_cairo_create_layout(c);

	pango_layout_set_font_description(layout, g_tooltip.font_desc);
	PangoRectangle r1, r2;
	pango_layout_set_text(layout, "1234567890", -1);
	pango_layout_get_pixel_extents(layout, &r1, &r2);
	int max_width = MIN(r2.width * 7, screen_width * 2 / 3);
	pango_layout_set_width(layout, max_width * PANGO_SCALE);

	pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
	pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
	pango_layout_get_pixel_extents(layout, &r1, &r2);
	width = 2 * g_tooltip.bg->border.width + 2 * g_tooltip.paddingx + r2.width;
	height = 2 * g_tooltip.bg->border.width + 2 * g_tooltip.paddingy + r2.height;

	if (panel_horizontal && panel_position & BOTTOM)
		y = panel->posy - height;
	else if (panel_horizontal && panel_position & TOP)
		y = panel->posy + panel->area.height;
	else if (panel_position & LEFT)
		x = panel->posx + panel->area.width;
	else
		x = panel->posx - width;

	g_object_unref(layout);
	cairo_destroy(c);
	cairo_surface_destroy(cs);
}

      /* clean entries */
      gtk_entry_set_text(GTK_ENTRY(lib->gui.plabel), "");
      gtk_entry_set_text(GTK_ENTRY(lib->gui.pname), "");
    }
  }
}


static void _toggle_capture_mode_clicked(GtkWidget *widget, gpointer user_data)
{
  dt_lib_camera_t *lib = (dt_lib_camera_t *)user_data;
  GtkWidget *w = NULL;
  if(widget == GTK_WIDGET(lib->gui.tb1))
    w = lib->gui.sb1;
  else if(widget == GTK_WIDGET(lib->gui.tb2))
    w = lib->gui.sb2;
  else if(widget == GTK_WIDGET(lib->gui.tb3))
  {
    gtk_widget_set_sensitive(lib->gui.sb3, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)));
    gtk_widget_set_sensitive(lib->gui.sb4, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)));
  }

  if(w) gtk_widget_set_sensitive(w, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)));
}


#define BAR_HEIGHT DT_PIXEL_APPLY_DPI(18) /* also change in views/tethering.c */
static void _expose_info_bar(dt_lib_module_t *self, cairo_t *cr, int32_t width, int32_t height,
                             int32_t pointerx, int32_t pointery)
{
  dt_lib_camera_t *lib = (dt_lib_camera_t *)self->data;

  // Draw infobar background at top
  cairo_set_source_rgb(cr, .0, .0, .0);
  cairo_rectangle(cr, 0, 0, width, BAR_HEIGHT);
  cairo_fill(cr);

  cairo_set_source_rgb(cr, .8, .8, .8);

  // Draw left aligned value camera model value
  PangoLayout *layout;
  PangoRectangle ink;
  PangoFontDescription *desc = pango_font_description_copy_static(darktable.bauhaus->pango_font_desc);
  pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
  layout = pango_cairo_create_layout(cr);
  const int fontsize = DT_PIXEL_APPLY_DPI(11.5);
  pango_font_description_set_absolute_size(desc, fontsize * PANGO_SCALE);
  pango_layout_set_font_description(layout, desc);
  char model[4096] = { 0 };
  sprintf(model + strlen(model), "%s", lib->data.camera_model);
  pango_layout_set_text(layout, model, -1);
  pango_layout_get_pixel_extents(layout, &ink, NULL);
  cairo_move_to(cr, DT_PIXEL_APPLY_DPI(5), DT_PIXEL_APPLY_DPI(1) + BAR_HEIGHT - ink.height / 2 - fontsize);
  pango_cairo_show_layout(cr, layout);

  // Draw right aligned battery value
  const char *battery_value = dt_camctl_camera_get_property(darktable.camctl, NULL, "batterylevel");
  char battery[4096] = { 0 };
  snprintf(battery, sizeof(battery), "%s: %s", _("battery"), battery_value ? battery_value : _("n/a"));
  pango_layout_set_text(layout, battery, -1);
  pango_layout_get_pixel_extents(layout, &ink, NULL);
  cairo_move_to(cr, width - ink.width - DT_PIXEL_APPLY_DPI(5), DT_PIXEL_APPLY_DPI(1) + BAR_HEIGHT - ink.height / 2 - fontsize);
  pango_cairo_show_layout(cr, layout);

  // Let's cook up the middle part of infobar
  gchar center[1024] = { 0 };
  for(guint i = 0; i < g_list_length(lib->gui.properties); i++)
  {
    dt_lib_camera_property_t *prop = (dt_lib_camera_property_t *)g_list_nth_data(lib->gui.properties, i);
    if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(prop->osd)) == TRUE)
    {
      g_strlcat(center, "      ", sizeof(center));
      g_strlcat(center, prop->name, sizeof(center));
      g_strlcat(center, ": ", sizeof(center));
      g_strlcat(center, dt_bauhaus_combobox_get_text(prop->values), sizeof(center));
    }
  }
  g_strlcat(center, "      ", sizeof(center));

  // Now lets put it in center view...
  pango_layout_set_text(layout, center, -1);
  pango_layout_get_pixel_extents(layout, &ink, NULL);
  cairo_move_to(cr, (width / 2) - (ink.width / 2), DT_PIXEL_APPLY_DPI(1) + BAR_HEIGHT - ink.height / 2 - fontsize);
  pango_cairo_show_layout(cr, layout);
  pango_font_description_free(desc);
  g_object_unref(layout);
}

static void 
i7_cell_renderer_transcript_get_size(GtkCellRenderer *self, GtkWidget *widget, GdkRectangle *cell_area, int *x_offset, int *y_offset, int *width, int *height) 
{
	I7_CELL_RENDERER_TRANSCRIPT_USE_PRIVATE;

	PangoRectangle command_rect, transcript_rect, expected_rect;
	PangoLayout *layout;
	unsigned xpad, ypad, transcript_width, calc_width, calc_height;
	
	g_object_get(self, "xpad", &xpad, "ypad", &ypad, NULL);
	transcript_width = (priv->default_width / 2) - xpad;

	/* Get size of command */
	layout = gtk_widget_create_pango_layout(widget, priv->command);
	pango_layout_get_pixel_extents(layout, NULL, &command_rect);
	g_object_unref(layout);

	/* Get size of transcript text */
	layout = gtk_widget_create_pango_layout(widget, priv->transcript_text);
	pango_layout_set_width(layout, (int)(transcript_width - priv->text_padding * 2) * PANGO_SCALE);
	pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
	pango_layout_get_pixel_extents(layout, NULL, &transcript_rect);
	g_object_unref(layout);

	/* Get size of expected text */
	layout = gtk_widget_create_pango_layout(widget, priv->expected_text);
	pango_layout_set_width(layout, (int)(transcript_width - priv->text_padding * 2) * PANGO_SCALE);
	pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
	pango_layout_get_pixel_extents(layout, NULL, &expected_rect);
	g_object_unref (layout);

	/* Calculate the required width and height for the cell */
	calc_width = priv->default_width;
	calc_height = (unsigned)(command_rect.height + MAX(transcript_rect.height, expected_rect.height)) + ypad * 2 + priv->text_padding * 4;

	/* Set the passed-in parameters; if the available cell area is larger than
	 the required width and height, just use that instead */
	if(cell_area) {
		if(width)
			*width = MAX(cell_area->width, (int)calc_width);
		if(height)
			*height = MAX(cell_area->height, (int)calc_height);
	} else {
		if(width)
			*width = (int)calc_width;
		if(height)
			*height = (int)calc_height;
	}
	if(x_offset)
		*x_offset = 0;
	if(y_offset)
		*y_offset = 0;
}

//__________________________________________________________________
_HYRect _HYPullDown::_SuggestDimensions (void)
{
    _HYRect res = {25,100,25,100,HY_COMPONENT_NO_SCROLL};

    if (theMenu) {
        long            naturalWidth = 0;
        PangoLayout *   fontMeasurer = nil;
        for (long k=0; k<widgetList.lLength; k+=2) {
            GtkWidget * dropWidget = GTK_WIDGET (widgetList(k));
            if (!fontMeasurer) {
                fontMeasurer = pango_layout_new (gtk_widget_get_pango_context (dropWidget));
            }

            pango_layout_set_text(fontMeasurer,GetMenuItem(k/2)->sData ,GetMenuItem(k/2)->sLength);
            PangoRectangle extents,
                           log_ext;
            pango_layout_get_pixel_extents (fontMeasurer,&extents,nil);
            if (extents.width > naturalWidth) {
                naturalWidth = extents.width;
            }
        }
        if (fontMeasurer) {
            g_object_unref (fontMeasurer);
        }

        res.right = res.left = naturalWidth+25;
    }

    return res;
}

void get_font_size(term_data* td)
{
	PangoRectangle r;
	PangoLayout *temp;
	PangoFontDescription* temp_font;
	cairo_t *cr;
	cairo_surface_t *surface;
	
	surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 200, 200);
	cr = cairo_create(surface);
	
	temp = pango_cairo_create_layout(cr);
	
	/* Draw an @, and measure it */
	temp_font = pango_font_description_from_string(td->font.name);
	pango_layout_set_font_description(temp, temp_font);
	pango_layout_set_text(temp, "@", 1);
	pango_cairo_show_layout(cr, temp);
	pango_layout_get_pixel_extents(temp, NULL, &r);
	
	td->font.w = r.width;
	td->font.h = r.height;
	
	pango_font_description_free(temp_font);
	cairo_destroy(cr);
	g_object_unref(temp);
	
	td->win.w = td->font.w * td->cols;
	td->win.h = td->font.h * td->rows;
//	printf("font width == %d, height = %d.\n", td->font.w, td->font.h);
}

static void
shell_search_renderer_render (GtkCellRenderer      *cell,
                              cairo_t              *cr,
                              GtkWidget            *widget,
                              const GdkRectangle   *background_area,
                              const GdkRectangle   *cell_area,
                              GtkCellRendererState  flags)
{
  ShellSearchRendererPrivate *priv = SHELL_SEARCH_RENDERER (cell)->priv;
  PangoRectangle rect;
  GtkStyleContext *context;
  gint layout_height;
  gint vcenter_offset;

  context = gtk_widget_get_style_context (widget);

  shell_search_renderer_set_layout (SHELL_SEARCH_RENDERER (cell), widget);

  pango_layout_get_pixel_extents (priv->layout, NULL, &rect);

  pango_layout_get_pixel_size (priv->layout, NULL, &layout_height);
  vcenter_offset = (cell_area->height - layout_height) / 2;

  cairo_save (cr);

  gtk_render_layout (context, cr,
                     cell_area->x,
                     cell_area->y + vcenter_offset,
                     priv->layout);

  cairo_restore (cr);
}

MCGFloat __MCGContextMeasurePlatformText(MCGContextRef self, const unichar_t *p_text, uindex_t p_length, const MCGFont &p_font)
{	
	// MW-2013-12-19: [[ Bug 11559 ]] Do nothing if no text support.
	if (!s_has_text_support)
		return 0.0;
	
	bool t_success;
	t_success = true;		
	
	if (t_success)
		t_success = s_layout != NULL;
	
	char *t_text;
	t_text = nil;
	if (t_success)
		t_success = MCCStringFromUnicodeSubstring(p_text, p_length / 2, t_text);
	
	MCGFloat t_width;
	t_width = 0.0;
	if (t_success)
	{
		pango_layout_set_text(s_layout, t_text, -1);		
		pango_layout_set_font_description(s_layout, (PangoFontDescription *) p_font . fid);
		
		PangoRectangle t_bounds;
		pango_layout_get_pixel_extents(s_layout, NULL, &t_bounds);
		t_width = t_bounds . width;		
	}
	
	MCCStringFree(t_text);

	return t_width;
}

/*!
  \brief draw_valtext() draws the dynamic values for the traces on 
  the left hand side of the logviewer. This is optimized so that if the value
  becomes temporarily static, it won't keep blindly updating the screen and
  wasting CPU time.
  \param force_draw when true to write the values to screen for
  all controls no matter if hte previous value is the same or not.
  */
G_MODULE_EXPORT void draw_valtext(gboolean force_draw)
{
	gint last_index = 0;
	gfloat val = 0.0;
	gfloat last_val = 0.0;
	gint val_x = 0;
	gint val_y = 0;
	gint info_ctr = 0;
	gint h = 0;
	gint i = 0;
	GArray *array = NULL;
	Viewable_Value *v_value = NULL;
	PangoLayout *layout;
	GdkPixmap *pixmap = lv_data->pixmap;
	GtkAllocation allocation;

	gtk_widget_get_allocation(lv_data->darea,&allocation);

	h = allocation.height;

	if (!lv_data->font_desc)
	{
		lv_data->font_desc = pango_font_description_from_string("courier");
		pango_font_description_set_size(lv_data->font_desc,(10)*PANGO_SCALE);
	}
	
	val_x = 7;
	for (i=0;i<lv_data->active_traces;i++)
	{
		v_value = (Viewable_Value *)g_list_nth_data(lv_data->tlist,i);
		info_ctr = (lv_data->spread * (i+1))- (lv_data->spread/2);
		val_y = info_ctr + 1;

		last_index = v_value->last_index;
		array = DATA_GET(v_value->object,v_value->data_source);
		val = g_array_index(array,gfloat,last_index);
		if (array->len > 1)
			last_val = g_array_index(array,gfloat,last_index-1);
		/* IF this value matches the last one,  don't bother
		 * updating the text as there's no point... */
		if ((val == last_val) && (!force_draw) && (!v_value->force_update))
			continue;
		
		v_value->force_update = FALSE;
		gdk_draw_rectangle(pixmap,
				gtk_widget_get_style(lv_data->darea)->black_gc,
				TRUE,
				v_value->ink_rect->x+val_x,
				v_value->ink_rect->y+val_y,
				lv_data->info_width-1-v_value->ink_rect->x-val_x,
				v_value->ink_rect->height);

		layout = gtk_widget_create_pango_layout(lv_data->darea,g_strdup_printf("%1$.*2$f",val,v_value->precision));

		pango_layout_set_font_description(layout,lv_data->font_desc);
		pango_layout_get_pixel_extents(layout,v_value->ink_rect,v_value->log_rect);
		gdk_draw_layout(pixmap,v_value->font_gc,val_x,val_y,layout);
	}

}

static void
_paint_text (OlScrollWindow *scroll, cairo_t *cr)
{
  ol_log_func ();
  ol_assert (OL_IS_SCROLL_WINDOW (scroll));
  ol_assert (cr != NULL);
  GtkWidget *widget = GTK_WIDGET (scroll);
  OlScrollWindowPrivate *priv = OL_SCROLL_WINDOW_GET_PRIVATE (scroll);
  gint width, height;
  PangoRectangle extent;
  PangoLayout *layout;
  gint x, y;
  gdk_drawable_get_size (gtk_widget_get_window (widget),
                         &width, &height);
  
  /* set the font */
  cairo_save (cr);
  cairo_set_source_rgb (cr,
                        priv->inactive_color.r,
                        priv->inactive_color.g,
                        priv->inactive_color.b);
  layout = _get_pango (scroll, cr);
  pango_layout_set_text (layout, priv->text, -1);
  pango_layout_get_pixel_extents (layout, NULL, &extent);
  pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
  x = (width - extent.width) / 2;
  y = (height - extent.height) / 2;
  if (x < 0) x = 0;
  if (y < 0) y = 0;
  cairo_move_to (cr, x, y);
  pango_cairo_update_layout (cr, layout);
  pango_cairo_show_layout (cr, layout);
}

void tooltip_update()
{
	if (!g_tooltip.tooltip_text) {
		tooltip_hide(0);
		return;
	}

	tooltip_update_geometry();
	if (just_shown) {
		if (!panel_horizontal)
			y -= height / 2; // center vertically
		just_shown = FALSE;
	}
	tooltip_adjust_geometry();
	XMoveResizeWindow(server.display, g_tooltip.window, x, y, width, height);

	// Stuff for drawing the tooltip
	cairo_surface_t *cs = cairo_xlib_surface_create(server.display, g_tooltip.window, server.visual, width, height);
	cairo_t *c = cairo_create(cs);
	Color bc = g_tooltip.bg->fill_color;
	Border b = g_tooltip.bg->border;
	if (server.real_transparency) {
		clear_pixmap(g_tooltip.window, 0, 0, width, height);
		draw_rect(c, b.width, b.width, width - 2 * b.width, height - 2 * b.width, b.radius - b.width / 1.571);
		cairo_set_source_rgba(c, bc.rgb[0], bc.rgb[1], bc.rgb[2], bc.alpha);
	} else {
		cairo_rectangle(c, 0., 0, width, height);
		cairo_set_source_rgb(c, bc.rgb[0], bc.rgb[1], bc.rgb[2]);
	}
	cairo_fill(c);
	cairo_set_line_width(c, b.width);
	if (server.real_transparency)
		draw_rect(c, b.width / 2.0, b.width / 2.0, width - b.width, height - b.width, b.radius);
	else
		cairo_rectangle(c, b.width / 2.0, b.width / 2.0, width - b.width, height - b.width);
	cairo_set_source_rgba(c, b.color.rgb[0], b.color.rgb[1], b.color.rgb[2], b.color.alpha);
	cairo_stroke(c);

	Color fc = g_tooltip.font_color;
	cairo_set_source_rgba(c, fc.rgb[0], fc.rgb[1], fc.rgb[2], fc.alpha);
	PangoLayout *layout = pango_cairo_create_layout(c);
	pango_layout_set_font_description(layout, g_tooltip.font_desc);
	pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
	pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
	PangoRectangle r1, r2;
	pango_layout_get_pixel_extents(layout, &r1, &r2);
	pango_layout_set_width(layout, width * PANGO_SCALE);
	pango_layout_set_height(layout, height * PANGO_SCALE);
	pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
	// I do not know why this is the right way, but with the below cairo_move_to it seems to be centered (horiz. and
	// vert.)
	cairo_move_to(c,
				  -r1.x / 2 + g_tooltip.bg->border.width + g_tooltip.paddingx,
				  -r1.y / 2 + 1 + g_tooltip.bg->border.width + g_tooltip.paddingy);
	pango_cairo_show_layout(c, layout);

	g_object_unref(layout);
	cairo_destroy(c);
	cairo_surface_destroy(cs);
}

static void
gimp_ruler_size_request (GtkWidget      *widget,
                         GtkRequisition *requisition)
{
  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (widget);
  GtkStyle         *style = gtk_widget_get_style (widget);
  PangoLayout      *layout;
  PangoRectangle    ink_rect;
  gint              size;

  layout = gimp_ruler_get_layout (widget, "0123456789");
  pango_layout_get_pixel_extents (layout, &ink_rect, NULL);

  size = 2 + ink_rect.height * 1.7;

  if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      requisition->width  = style->xthickness * 2 + 1;
      requisition->height = style->ythickness * 2 + size;
    }
  else
    {
      requisition->width  = style->xthickness * 2 + size;
      requisition->height = style->ythickness * 2 + 1;
    }
}

TextAsset::Size
TextAsset::computeSizeOfText(cairo_t* cairoContext,
                             const std::string textString,
                             int bounds,
                             PangoFontDescription* font,
                             Rect* tight,
                             float* lineHeightOut)
{
    PangoLayout* layout = pango_cairo_create_layout(cairoContext);

    // Kerning
    PangoAttrList* attr_list = pango_attr_list_new();
    PangoAttribute* spacing_attr = pango_attr_letter_spacing_new(pango_units_from_double(_kern));
    pango_attr_list_insert(attr_list, spacing_attr);
    pango_layout_set_attributes(layout, attr_list);

    pango_cairo_context_set_resolution(pango_layout_get_context(layout), DISPLAY_RESOLUTION);
    pango_layout_set_text(layout, textString.c_str(), (int)textString.length());
    pango_layout_set_alignment(layout, _alignment);
    pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);

    const Size maxTextureSize(bounds, 1024);
    pango_layout_set_width(layout, pango_units_from_double(maxTextureSize.width));
    pango_layout_set_height(layout, pango_units_from_double(maxTextureSize.height));
    pango_layout_set_font_description(layout, font);
    applyLeading(cairoContext, layout, font);

    PangoRectangle estimateSize;
    PangoRectangle ink;
    pango_layout_get_pixel_extents(layout, &ink, &estimateSize);

    // If the text is right or center aligned the offsets will contain all the
    // leading space.  We ignore that for the size because drawText will draw
    // in the larger box.  The tight box below will get the offsets so we know
    // where to draw so the text lands in the same tight box.
    Size res(estimateSize.width, estimateSize.height);

    if (tight != NULL) {
        float lineHeight;
        float xHeight = charHeight(cairoContext, font, 'x', &lineHeight);
        if (lineHeightOut != NULL) {
            *lineHeightOut = lineHeight;
        }
        const float capHeight = charHeight(cairoContext, font, 'Y');
        const float ascender = pango_units_to_double(pango_layout_get_baseline(layout));
        const float topSpace = ascender - capHeight;
        const float bottomSpace = MAX(lineHeight - ascender - (capHeight - xHeight), 0);
        if (res.height > topSpace + bottomSpace) {
            *tight = Rect(estimateSize.x,
                          estimateSize.y + topSpace,
                          res.width,
                          res.height - topSpace - bottomSpace);
        } else {
            *tight = Rect(0, 0, res.width, res.height);
        }
    }
    g_object_unref(layout);

    return res;
}

/* Updates the pango layout width */
static void
update_pango_layout (MateIconTextItem *iti)
{
    MateIconTextItemPrivate *priv;
    PangoRectangle bounds;
    const char *text;

    priv = iti->_priv;

    if (iti->editing) {
        text = gtk_entry_get_text (GTK_ENTRY (priv->entry));
    } else {
        text = iti->text;
    }

    pango_layout_set_wrap (priv->layout, PANGO_WRAP_WORD_CHAR);
    pango_layout_set_text (priv->layout, text, strlen (text));
    pango_layout_set_width (priv->layout, iti->width * PANGO_SCALE);

    /* In PANGO_WRAP_WORD mode, words wider than a line of text make
     * PangoLayout overflow the layout width.  If this happens, switch to
     * character-based wrapping.
     */

    pango_layout_get_pixel_extents (iti->_priv->layout, NULL, &bounds);

    priv->layout_width = bounds.width;
    priv->layout_height = bounds.height;
}

void get_font_size(font_info *font)
{
	#ifndef USE_PANGO
	get_toy_font_size(font);
	#else
	PangoRectangle r;
	PangoLayout *temp;
	PangoFontDescription *temp_font;
	
	cairo_t *cr;
	cairo_surface_t *surface;
	
	surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 200, 200);
	cr = cairo_create(surface);
	
	temp = pango_cairo_create_layout(cr);
	temp_font = pango_font_description_from_string(font->name);
	
	/* Draw an @, and measure it */
	pango_layout_set_font_description(temp, temp_font);
	pango_layout_set_text(temp, "@", 1);
	pango_cairo_show_layout(cr, temp);
	pango_layout_get_pixel_extents(temp, NULL, &r);
	
	font->w = r.width;
	font->h = r.height;
	
	pango_font_description_free(temp_font);
	cairo_destroy(cr);
	cairo_surface_destroy(surface);
	g_object_unref(temp);
	#endif
}

void tooltip_update_geometry()
{
	cairo_surface_t *cs;
	cairo_t *c;
	PangoLayout* layout;
	cs = cairo_xlib_surface_create(server.dsp, g_tooltip.window, server.visual, width, height);
	c = cairo_create(cs);
	layout = pango_cairo_create_layout(c);
	pango_layout_set_font_description(layout, g_tooltip.font_desc);
	pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
	PangoRectangle r1, r2;
	pango_layout_get_pixel_extents(layout, &r1, &r2);
	width = 2*g_tooltip.bg->border.width + 2*g_tooltip.paddingx + r2.width;
	height = 2*g_tooltip.bg->border.width + 2*g_tooltip.paddingy + r2.height;

	Panel* panel = g_tooltip.panel;
	if (panel_horizontal && panel_position & BOTTOM)
		y = panel->posy-height;
	else if (panel_horizontal && panel_position & TOP)
		y = panel->posy + panel->area.height;
	else if (panel_position & LEFT)
		x = panel->posx + panel->area.width;
	else
		x = panel->posx - width;

	g_object_unref(layout);
	cairo_destroy(c);
	cairo_surface_destroy(cs);
}

//________________________________________________________
long    GetVisibleStringWidth (_String& s, _HYFont& f)
{
    static PangoLayout* textLayout       = pango_layout_new (screenPContext);
    static PangoFontDescription * fd     = pango_font_description_new ();
    static _HYFont                         stashedFont;

    if (s.sLength) {
        if (stashedFont.size!=f.size || stashedFont.style != f.style || stashedFont.face != f.face) {
            HYFont2PangoFontDesc(f,fd);
            pango_layout_set_width (textLayout,-1);
            pango_layout_set_font_description(textLayout,fd);
            stashedFont = f;
        }
        pango_layout_set_text (textLayout, s.sData,s.sLength);
        //PangoRectangle charPos;
        //pango_layout_index_to_pos (textLayout,s.sLength-1,&charPos);
        //return PANGO_PIXELS(charPos.x+charPos.width);
        PangoRectangle extents,
                       logical_ext;

        pango_layout_get_pixel_extents (textLayout,&extents,&logical_ext);
        return logical_ext.width;
    } else {
        return 0;
    }

}

static gint
matewnck_selector_get_width (GtkWidget *widget, const char *text)
{
  GtkStyle *style;
  PangoContext *context;
  PangoFontMetrics *metrics;
  gint char_width;
  PangoLayout *layout;
  PangoRectangle natural;
  gint max_width;
  gint screen_width;
  gint width;

  gtk_widget_ensure_style (widget);
  style = gtk_widget_get_style (widget);

  context = gtk_widget_get_pango_context (widget);
  metrics = pango_context_get_metrics (context, style->font_desc,
                                       pango_context_get_language (context));
  char_width = pango_font_metrics_get_approximate_char_width (metrics);
  pango_font_metrics_unref (metrics);
  max_width = PANGO_PIXELS (SELECTOR_MAX_WIDTH * char_width);

  layout = gtk_widget_create_pango_layout (widget, text);
  pango_layout_get_pixel_extents (layout, NULL, &natural);
  g_object_unref (G_OBJECT (layout));

  screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));

  width = MIN (natural.width, max_width);
  width = MIN (width, 3 * (screen_width / 4));

  return width;
}

void MapPainterSVG::GetTextDimension(const Projection& projection,
                                     const MapParameter& parameter,
                                     double fontSize,
                                     const std::string& text,
                                     double& xOff,
                                     double& yOff,
                                     double& width,
                                     double& height)
{
#if defined(OSMSCOUT_MAP_SVG_HAVE_LIB_PANGO)
    PangoFontDescription *font;
    PangoLayout          *layout=pango_layout_new(pangoContext);
    PangoRectangle       extends;

    font=GetFont(projection,
                 parameter,
                 fontSize);

    pango_layout_set_font_description(layout,font);
    pango_layout_set_text(layout,text.c_str(),text.length());

    pango_layout_get_pixel_extents(layout,&extends,NULL);

    xOff=extends.x;
    yOff=extends.y;
    width=extends.width;
    height=pango_font_description_get_size(font)/PANGO_SCALE;

    g_object_unref(layout);
#endif
}

/* FIXME: It seems to overestimate the height a bit, it's visible on labels
 * with many curves.  It also seems to strangely underestimate the width
 * for curve descriptions under certain length. */
static void
gwy_graph_label_calculate_size(GwyGraphLabel *label)
{
    gint i, nc;
    PangoLayout *layout;
    PangoRectangle rect;
    GwyGraphCurveModel *curvemodel;
    GwyGraphModel *model;

    label->reqheight = 0;
    label->reqwidth = 0;

    model = GWY_GRAPH_MODEL(label->graph_model);
    nc = gwy_graph_model_get_n_curves(model);
    for (i = 0; i < nc; i++) {
        curvemodel = gwy_graph_model_get_curve(model, i);

        layout = gtk_widget_create_pango_layout(GTK_WIDGET(label), NULL);

        pango_layout_set_font_description(layout, label->font_desc);
        pango_layout_set_markup(layout, curvemodel->description->str,
                                curvemodel->description->len);
        pango_layout_get_pixel_extents(layout, NULL, &rect);

        if (label->reqwidth < rect.width)
            label->reqwidth = rect.width + 30 + model->label_frame_thickness;
        label->reqheight += rect.height + 5 + model->label_frame_thickness;

        g_object_unref(layout);
    }
    if (label->reqwidth == 0)
        label->reqwidth = 30;
    if (label->reqheight == 0)
        label->reqheight = 30;
}

static void
git_source_view_calculate_line_height (GitSourceView *sview)
{
  GitSourceViewPrivate *priv = sview->priv;

  if (priv->line_height == 0 && GTK_WIDGET_REALIZED (sview)
      && priv->paint_source)
    {
      PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (sview),
                                                            NULL);
      int line_num;
      PangoRectangle logical_rect;
      guint line_height = 1, max_line_width = 1, max_hash_length = 1;

      for (line_num = 0;
           line_num < git_annotated_source_get_n_lines (priv->paint_source);
           line_num++)
        {
          const GitAnnotatedSourceLine *line
            = git_annotated_source_get_line (priv->paint_source, line_num);

          git_source_view_set_text_for_line (layout, line);
          pango_layout_get_pixel_extents (layout, NULL, &logical_rect);

          if (logical_rect.height > line_height)
            line_height = logical_rect.height;
          if (logical_rect.width > max_line_width)
            max_line_width = logical_rect.width;

          git_source_view_set_text_for_commit (layout, line->commit);
          pango_layout_get_pixel_extents (layout, NULL, &logical_rect);

          if (logical_rect.height > line_height)
            line_height = logical_rect.height;
          if (logical_rect.width > max_hash_length)
            max_hash_length = logical_rect.width;
        }

      priv->line_height = line_height;
      priv->max_line_width = max_line_width;
      priv->max_hash_length = max_hash_length + GIT_SOURCE_VIEW_GAP * 2;

      g_object_unref (layout);

      git_source_view_update_scroll_adjustments (sview);
    }
}