static void drawGlyphsShadow(GraphicsContext* graphicsContext, const FloatPoint& point, PangoLayoutLine* layoutLine, PangoRegionType renderRegion)
{
ShadowBlur& shadow = graphicsContext->platformContext()->shadowBlur();
if (!(graphicsContext->textDrawingMode() & TextModeFill) || shadow.type() == ShadowBlur::NoShadow)
return;
FloatPoint totalOffset(point + graphicsContext->state().shadowOffset);
// Optimize non-blurry shadows, by just drawing text without the ShadowBlur.
if (!shadow.mustUseShadowBlur(graphicsContext)) {
cairo_t* context = graphicsContext->platformContext()->cr();
cairo_save(context);
cairo_translate(context, totalOffset.x(), totalOffset.y());
setSourceRGBAFromColor(context, graphicsContext->state().shadowColor);
#if PLATFORM(GTK)
gdk_cairo_region(context, renderRegion);
#else
appendRegionToCairoContext(context, renderRegion);
#endif
cairo_clip(context);
pango_cairo_show_layout_line(context, layoutLine);
cairo_restore(context);
return;
}
FloatRect extents(getPangoRegionExtents(renderRegion));
extents.setLocation(FloatPoint(point.x(), point.y() - extents.height()));
if (GraphicsContext* shadowContext = shadow.beginShadowLayer(graphicsContext, extents)) {
cairo_t* cairoShadowContext = shadowContext->platformContext()->cr();
cairo_translate(cairoShadowContext, point.x(), point.y());
pango_cairo_show_layout_line(cairoShadowContext, layoutLine);
// We need the clipping region to be active when we blit the blurred shadow back,
// because we don't want any bits and pieces of characters out of range to be
// drawn. Since ShadowBlur expects a consistent transform, we have to undo the
// translation before calling endShadowLayer as well.
cairo_t* context = graphicsContext->platformContext()->cr();
cairo_save(context);
cairo_translate(context, totalOffset.x(), totalOffset.y());
#if PLATFORM(GTK)
gdk_cairo_region(context, renderRegion);
#else
appendRegionToCairoContext(context, renderRegion);
#endif
cairo_clip(context);
cairo_translate(context, -totalOffset.x(), -totalOffset.y());
shadow.endShadowLayer(graphicsContext);
cairo_restore(context);
}
}
/* The plug window should completely occupy the area of the child, so we won't
* get an expose event. But in case we do (the plug unmaps itself, say), this
* expose handler draws with real or fake transparency.
*/
static gboolean
na_tray_child_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
NaTrayChild *child = NA_TRAY_CHILD (widget);
GdkWindow *window = gtk_widget_get_window (widget);
if (na_tray_child_has_alpha (child))
{
/* Clear to transparent */
cairo_t *cr = gdk_cairo_create (window);
cairo_set_source_rgba (cr, 0, 0, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
gdk_cairo_region (cr, event->region);
cairo_fill (cr);
cairo_destroy (cr);
}
else if (child->parent_relative_bg)
{
/* Clear to parent-relative pixmap */
gdk_window_clear_area (window,
event->area.x, event->area.y,
event->area.width, event->area.height);
}
return FALSE;
}
static gboolean
piano_keyboard_expose(GtkWidget *widget, GdkEventExpose *event)
{
int i;
PianoKeyboard *pk = PIANO_KEYBOARD(widget);
cairo_t* cr = gdk_cairo_create (GDK_DRAWABLE (GTK_WIDGET(pk)->window));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
for (i = 0; i < NNOTES; i++) {
GdkRectangle r;
r.x = pk->notes[i].x;
r.y = 0;
r.width = pk->notes[i].w;
r.height = pk->notes[i].h;
switch (gdk_region_rect_in (event->region, &r)) {
case GDK_OVERLAP_RECTANGLE_PART:
case GDK_OVERLAP_RECTANGLE_IN:
draw_note (pk, cr, i);
break;
default:
break;
}
}
cairo_destroy (cr);
return TRUE;
}
static gboolean
gimp_view_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
if (gtk_widget_is_drawable (widget))
{
GtkAllocation allocation;
cairo_t *cr;
gtk_widget_get_allocation (widget, &allocation);
cr = gdk_cairo_create (event->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_translate (cr, allocation.x, allocation.y);
gimp_view_renderer_draw (GIMP_VIEW (widget)->renderer,
widget, cr,
allocation.width,
allocation.height);
cairo_destroy (cr);
}
return FALSE;
}
static gboolean
preview_expose(GtkWidget *widget, GdkEventExpose *event)
{
cairo_t *cr;
gint width = preview_get_width (widget);
gint height = preview_get_height (widget);
cr = gdk_cairo_create (event->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_set_line_width (cr, 1.);
draw_grid (cr, width, height);
draw_shapes (cr);
if (_tmp_obj)
{
/* this is a bit of a hack */
gdouble dash = 4.;
_tmp_obj->selected |= 4;
cairo_set_source_rgb (cr, 1., 0., 1.);
cairo_set_dash (cr, &dash, 1, dash);
object_draw (_tmp_obj, cr);
}
cairo_destroy (cr);
return FALSE;
}
gboolean
gimp_display_shell_canvas_expose (GtkWidget *widget,
GdkEventExpose *eevent,
GimpDisplayShell *shell)
{
/* are we in destruction? */
if (! shell->display || ! gimp_display_get_shell (shell->display))
return TRUE;
/* ignore events on overlays */
if (eevent->window == gtk_widget_get_window (widget))
{
cairo_t *cr;
cr = gdk_cairo_create (gtk_widget_get_window (shell->canvas));
gdk_cairo_region (cr, eevent->region);
cairo_clip (cr);
if (gimp_display_get_image (shell->display))
{
gimp_display_shell_canvas_draw_image (shell, cr);
}
else
{
gimp_display_shell_canvas_draw_drop_zone (shell, cr);
}
cairo_destroy (cr);
}
return FALSE;
}
static void port_display_expose(GdkEventExpose *ev,
GtkWidget *widget, GdkRectangle *rect, gdouble sliderstate, GdkPixbuf *image)
{
cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
GxPortDisplay *port_display = GX_PORT_DISPLAY(widget);
GdkRegion *region;
region = gdk_region_rectangle (&widget->allocation);
gdk_region_intersect (region, ev->region);
gdk_cairo_region (cr, region);
cairo_clip (cr);
gdk_cairo_set_source_pixbuf(cr, image, rect->x - (rect->width-(gint)sliderstate), rect->y);
cairo_rectangle(cr, rect->x, rect->y, rect->width, rect->height);
cairo_fill(cr);
if (port_display->cutoff_low + port_display->cutoff_high) {
cairo_set_source_rgba (cr, 0.8, 0.1, 0.1, 0.4);
cairo_set_line_width(cr, rect->height);
gint low = rect->width * port_display->cutoff_low * 0.01;
gint high = (rect->width* port_display->cutoff_high * 0.01)-2;
gint lw = rect->height/2;
cairo_move_to(cr,rect->x, rect->y+lw);
cairo_line_to(cr,rect->x + low, rect->y+lw);
cairo_stroke (cr);
cairo_move_to(cr,rect->width - high, rect->y+lw);
cairo_line_to(cr,rect->width+2, rect->y+lw);
cairo_stroke (cr);
cairo_set_source_rgba (cr, 0.1, 0.6, 0.1, 0.4);
cairo_move_to(cr,rect->x+ low, rect->y+lw);
cairo_line_to(cr,rect->width - high, rect->y+lw);
cairo_stroke (cr);
}
cairo_destroy(cr);
gdk_region_destroy (region);
}
static gboolean
hd_incoming_event_window_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
HDIncomingEventWindowPrivate *priv = HD_INCOMING_EVENT_WINDOW (widget)->priv;
cairo_t *cr;
cr = gdk_cairo_create (GDK_DRAWABLE (widget->window));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_source_surface (cr, priv->bg_image, 0.0, 0.0);
cairo_paint (cr);
cairo_destroy (cr);
return GTK_WIDGET_CLASS (hd_incoming_event_window_parent_class)->expose_event (widget,
event);
}
static gboolean
gimp_ruler_expose (GtkWidget *widget,
GdkEventExpose *event)
{
if (gtk_widget_is_drawable (widget))
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkAllocation allocation;
cairo_t *cr;
gimp_ruler_draw_ticks (ruler);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
gtk_widget_get_allocation (widget, &allocation);
cairo_translate (cr, allocation.x, allocation.y);
cairo_set_source_surface (cr, priv->backing_store, 0, 0);
cairo_paint (cr);
gimp_ruler_draw_pos (ruler);
cairo_destroy (cr);
}
return FALSE;
}
static gboolean
canvas_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
cairo_t *cr;
GList *iter;
GtkAllocation allocation;
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
gtk_widget_get_allocation (widget, &allocation);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_rectangle (cr, 0, 0, allocation.width, allocation.height);
cairo_fill (cr);
for (iter = canvas_items; iter; iter = iter->next)
canvas_item_draw (iter->data, cr, FALSE);
if (drop_item)
canvas_item_draw (drop_item, cr, TRUE);
cairo_destroy (cr);
return TRUE;
}
void Font::drawComplexText(GraphicsContext* context, const TextRun& run, const FloatPoint& point, int from, int to) const
{
#if defined(USE_FREETYPE)
if (!primaryFont()->platformData().m_pattern) {
drawSimpleText(context, run, point, from, to);
return;
}
#endif
cairo_t* cr = context->platformContext();
PangoLayout* layout = pango_cairo_create_layout(cr);
setPangoAttributes(this, run, layout);
gchar* utf8 = convertUniCharToUTF8(run.characters(), run.length(), 0, run.length());
pango_layout_set_text(layout, utf8, -1);
// Our layouts are single line
PangoLayoutLine* layoutLine = pango_layout_get_line_readonly(layout, 0);
// Get the region where this text will be laid out. We will use it to clip
// the Cairo context, for when we are only painting part of the text run and
// to calculate the size of the shadow buffer.
PangoRegionType partialRegion = 0;
char* start = g_utf8_offset_to_pointer(utf8, from);
char* end = g_utf8_offset_to_pointer(start, to - from);
int ranges[] = {start - utf8, end - utf8};
partialRegion = gdk_pango_layout_line_get_clip_region(layoutLine, 0, 0, ranges, 1);
drawGlyphsShadow(context, cr, point, layoutLine, partialRegion);
cairo_save(cr);
cairo_translate(cr, point.x(), point.y());
float red, green, blue, alpha;
context->fillColor().getRGBA(red, green, blue, alpha);
cairo_set_source_rgba(cr, red, green, blue, alpha);
gdk_cairo_region(cr, partialRegion);
cairo_clip(cr);
pango_cairo_show_layout_line(cr, layoutLine);
if (context->textDrawingMode() & TextModeStroke) {
Color strokeColor = context->strokeColor();
strokeColor.getRGBA(red, green, blue, alpha);
cairo_set_source_rgba(cr, red, green, blue, alpha);
pango_cairo_layout_line_path(cr, layoutLine);
cairo_set_line_width(cr, context->strokeThickness());
cairo_stroke(cr);
}
// Pango sometimes leaves behind paths we don't want
cairo_new_path(cr);
destroyPangoRegion(partialRegion);
g_free(utf8);
g_object_unref(layout);
cairo_restore(cr);
}
static gboolean
hd_bookmark_shortcut_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
HDBookmarkShortcutPrivate *priv = HD_BOOKMARK_SHORTCUT (widget)->priv;
cairo_t *cr;
cairo_surface_t *bg;
cairo_surface_t *thumbnail_icon;
cr = gdk_cairo_create (GDK_DRAWABLE (widget->window));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
if (priv->button_pressed)
bg = priv->bg_active;
else
bg = priv->bg_image;
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0);
cairo_paint (cr);
if (priv->thumbnail_icon)
thumbnail_icon = priv->thumbnail_icon;
else
{
create_default_thumbnail (HD_BOOKMARK_SHORTCUT (widget),
bg);
thumbnail_icon = priv->default_thumbnail_icon;
}
if (thumbnail_icon)
{
cairo_set_source_surface (cr,
thumbnail_icon,
BORDER_WIDTH_LEFT,
BORDER_WIDTH_TOP);
if (priv->thumb_mask)
cairo_mask_surface (cr,
priv->thumb_mask,
BORDER_WIDTH_LEFT,
BORDER_WIDTH_TOP);
}
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (bg)
{
cairo_set_source_surface (cr, bg, 0.0, 0.0);
cairo_paint (cr);
}
cairo_destroy (cr);
return GTK_WIDGET_CLASS (hd_bookmark_shortcut_parent_class)->expose_event (widget,
event);
}
static void
_gtk_pixel_cache_repaint (GtkPixelCache *cache,
GdkWindow *window,
GtkPixelCacheDrawFunc draw,
cairo_rectangle_int_t *view_rect,
cairo_rectangle_int_t *canvas_rect,
gpointer user_data)
{
cairo_t *backing_cr;
cairo_region_t *region_dirty = cache->surface_dirty;
cache->surface_dirty = NULL;
if (cache->surface &&
region_dirty &&
!cairo_region_is_empty (region_dirty))
{
backing_cr = cairo_create (cache->surface);
gdk_cairo_region (backing_cr, region_dirty);
cairo_clip (backing_cr);
cairo_translate (backing_cr,
-cache->surface_x - canvas_rect->x - view_rect->x,
-cache->surface_y - canvas_rect->y - view_rect->y);
cairo_save (backing_cr);
cairo_set_source_rgba (backing_cr,
0.0, 0, 0, 0.0);
cairo_set_operator (backing_cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (backing_cr);
cairo_restore (backing_cr);
cairo_save (backing_cr);
draw (backing_cr, user_data);
cairo_restore (backing_cr);
#ifdef G_ENABLE_DEBUG
if (GTK_DISPLAY_DEBUG_CHECK (gdk_window_get_display (window), PIXEL_CACHE))
{
GdkRGBA colors[] = {
{ 1, 0, 0, 0.08},
{ 0, 1, 0, 0.08},
{ 0, 0, 1, 0.08},
{ 1, 0, 1, 0.08},
{ 1, 1, 0, 0.08},
{ 0, 1, 1, 0.08},
};
static int current_color = 0;
gdk_cairo_set_source_rgba (backing_cr, &colors[(current_color++) % G_N_ELEMENTS (colors)]);
cairo_paint (backing_cr);
}
#endif
cairo_destroy (backing_cr);
}
if (region_dirty)
cairo_region_destroy (region_dirty);
}
na_tray_child_expose_event (GtkWidget *widget,
GdkEventExpose *event)
#endif
{
NaTrayChild *child = NA_TRAY_CHILD (widget);
GdkWindow *window = gtk_widget_get_window (widget);
if (na_tray_child_has_alpha (child))
{
/* Clear to transparent */
#if !GTK_CHECK_VERSION (3, 0, 0)
cairo_t *cr = gdk_cairo_create (window);
#endif
cairo_set_source_rgba (cr, 0, 0, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
#if GTK_CHECK_VERSION (3, 0, 0)
cairo_paint (cr);
#else
gdk_cairo_region (cr, event->region);
cairo_fill (cr);
cairo_destroy (cr);
#endif
}
else if (child->parent_relative_bg)
{
/* Clear to parent-relative pixmap */
#if GTK_CHECK_VERSION (3, 0, 0)
GdkWindow *window;
cairo_surface_t *target;
GdkRectangle clip_rect;
window = gtk_widget_get_window (widget);
target = cairo_get_group_target (cr);
gdk_cairo_get_clip_rectangle (cr, &clip_rect);
/* Clear to parent-relative pixmap
* We need to use direct X access here because GDK doesn't know about
* the parent relative pixmap. */
cairo_surface_flush (target);
XClearArea (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
clip_rect.x, clip_rect.y,
clip_rect.width, clip_rect.height,
False);
cairo_surface_mark_dirty_rectangle (target,
clip_rect.x, clip_rect.y,
clip_rect.width, clip_rect.height);
#else
gdk_window_clear_area (window,
event->area.x, event->area.y,
event->area.width, event->area.height);
#endif
}
return FALSE;
}
static void drawGlyphsShadow(GraphicsContext* graphicsContext, cairo_t* context, const FloatPoint& point, PangoLayoutLine* layoutLine, PangoRegionType renderRegion)
{
ContextShadow* shadow = graphicsContext->contextShadow();
ASSERT(shadow);
if (!(graphicsContext->textDrawingMode() & TextModeFill) || shadow->m_type == ContextShadow::NoShadow)
return;
FloatPoint totalOffset(point + shadow->m_offset);
// Optimize non-blurry shadows, by just drawing text without the ContextShadow.
if (!shadow->mustUseContextShadow(context)) {
cairo_save(context);
cairo_translate(context, totalOffset.x(), totalOffset.y());
setSourceRGBAFromColor(context, shadow->m_color);
gdk_cairo_region(context, renderRegion);
cairo_clip(context);
pango_cairo_show_layout_line(context, layoutLine);
cairo_restore(context);
return;
}
FloatRect extents(getPangoRegionExtents(renderRegion));
extents.setLocation(FloatPoint(point.x(), point.y() - extents.height()));
cairo_t* shadowContext = shadow->beginShadowLayer(context, extents);
if (shadowContext) {
cairo_translate(shadowContext, point.x(), point.y());
pango_cairo_show_layout_line(shadowContext, layoutLine);
// We need the clipping region to be active when we blit the blurred shadow back,
// because we don't want any bits and pieces of characters out of range to be
// drawn. Since ContextShadow expects a consistent transform, we have to undo the
// translation before calling endShadowLayer as well.
cairo_save(context);
cairo_translate(context, totalOffset.x(), totalOffset.y());
gdk_cairo_region(context, renderRegion);
cairo_clip(context);
cairo_translate(context, -totalOffset.x(), -totalOffset.y());
shadow->endShadowLayer(context);
cairo_restore(context);
}
}
static gboolean
gimp_color_frame_expose (GtkWidget *widget,
GdkEventExpose *eevent)
{
GimpColorFrame *frame = GIMP_COLOR_FRAME (widget);
if (frame->has_number)
{
GtkStyle *style = gtk_widget_get_style (widget);
GtkAllocation allocation;
GtkAllocation menu_allocation;
GtkAllocation color_area_allocation;
cairo_t *cr;
gchar buf[8];
gint w, h;
gdouble scale;
gtk_widget_get_allocation (widget, &allocation);
gtk_widget_get_allocation (frame->menu, &menu_allocation);
gtk_widget_get_allocation (frame->color_area, &color_area_allocation);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, eevent->region);
cairo_clip (cr);
cairo_translate (cr, allocation.x, allocation.y);
gdk_cairo_set_source_color (cr, &style->light[GTK_STATE_NORMAL]);
g_snprintf (buf, sizeof (buf), "%d", frame->number);
if (! frame->number_layout)
frame->number_layout = gtk_widget_create_pango_layout (widget, NULL);
pango_layout_set_text (frame->number_layout, buf, -1);
pango_layout_get_pixel_size (frame->number_layout, &w, &h);
scale = ((gdouble) (allocation.height -
menu_allocation.height -
color_area_allocation.height) /
(gdouble) h);
cairo_scale (cr, scale, scale);
cairo_move_to (cr,
(allocation.width / 2.0) / scale - w / 2.0,
(allocation.height / 2.0 +
menu_allocation.height / 2.0 +
color_area_allocation.height / 2.0) / scale - h / 2.0);
pango_cairo_show_layout (cr, frame->number_layout);
cairo_destroy (cr);
}
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, eevent);
}
bool MyPaintBox::on_expose_event(GdkEventExpose *event) {
call_paint_func(event);
Cairo::RefPtr<Cairo::Context> cr = Glib::wrap(event->window, true)->create_cairo_context();
gdk_cairo_region(cr->cobj(), event->region);
cr->clip();
cr->set_source_rgba(0.0, 0.0, 0.0, 1-background_adj->get_value());
cr->paint();
foreach(sigc::bind(sigc::mem_fun(this, &MyPaintBox::propagate_expose), event));
return true;
}
gboolean
gimp_overlay_child_expose (GimpOverlayBox *box,
GimpOverlayChild *child,
GdkEventExpose *event)
{
GtkWidget *widget;
g_return_val_if_fail (GIMP_IS_OVERLAY_BOX (box), FALSE);
g_return_val_if_fail (child != NULL, FALSE);
g_return_val_if_fail (event != NULL, FALSE);
widget = GTK_WIDGET (box);
if (event->window == gtk_widget_get_window (widget))
{
GtkAllocation child_allocation;
GdkRectangle bounds;
gtk_widget_get_allocation (child->widget, &child_allocation);
gimp_overlay_child_transform_bounds (child, &child_allocation, &bounds);
if (gtk_widget_get_visible (child->widget) &&
gdk_rectangle_intersect (&event->area, &bounds, NULL))
{
GdkPixmap *pixmap = gdk_offscreen_window_get_pixmap (child->window);
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_transform (cr, &child->matrix);
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
cairo_paint_with_alpha (cr, child->opacity);
cairo_destroy (cr);
}
}
else if (event->window == child->window)
{
if (! gtk_widget_get_app_paintable (child->widget))
gtk_paint_flat_box (gtk_widget_get_style (child->widget),
event->window,
GTK_STATE_NORMAL, GTK_SHADOW_NONE,
&event->area, widget, NULL,
0, 0, -1, -1);
gtk_container_propagate_expose (GTK_CONTAINER (widget),
child->widget,
event);
return TRUE;
}
return FALSE;
}
static gboolean
gimp_palette_view_expose (GtkWidget *widget,
GdkEventExpose *eevent)
{
GimpPaletteView *pal_view = GIMP_PALETTE_VIEW (widget);
GimpView *view = GIMP_VIEW (widget);
if (! gtk_widget_is_drawable (widget))
return FALSE;
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, eevent);
if (view->renderer->viewable && pal_view->selected)
{
GimpViewRendererPalette *renderer;
GtkStyle *style = gtk_widget_get_style (widget);
GtkAllocation allocation;
cairo_t *cr;
gint row, col;
renderer = GIMP_VIEW_RENDERER_PALETTE (view->renderer);
gtk_widget_get_allocation (widget, &allocation);
row = pal_view->selected->position / renderer->columns;
col = pal_view->selected->position % renderer->columns;
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, eevent->region);
cairo_clip (cr);
cairo_translate (cr, allocation.x, allocation.y);
cairo_rectangle (cr,
col * renderer->cell_width + 0.5,
row * renderer->cell_height + 0.5,
renderer->cell_width,
renderer->cell_height);
cairo_set_line_width (cr, 1.0);
gdk_cairo_set_source_color (cr, &style->fg[GTK_STATE_SELECTED]);
cairo_stroke_preserve (cr);
if (gimp_cairo_set_focus_line_pattern (cr, widget))
{
gdk_cairo_set_source_color (cr, &style->fg[GTK_STATE_NORMAL]);
cairo_stroke (cr);
}
cairo_destroy (cr);
}
return FALSE;
}
static gboolean
expose_event(GtkWidget *widget, GdkEventExpose *event, GdkPixmap *pixmap)
{
cairo_t *cr;
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
gdk_cairo_region (cr, event->region);
cairo_fill (cr);
cairo_destroy (cr);
return FALSE;
}
static gboolean
avatar_image_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GiggleAvatarImagePriv *priv = GET_PRIV (widget);
GtkAllocation allocation;
GtkRequisition requisition;
GtkStyle *style;
float xalign, yalign;
double x, y;
int w, h;
cairo_t *cr;
gtk_widget_size_request (widget, &requisition);
gtk_widget_get_allocation (widget, &allocation);
style = gtk_widget_get_style (widget);
cr = gdk_cairo_create (event->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
w = requisition.width;
h = requisition.height;
gtk_misc_get_alignment (GTK_MISC (widget), &xalign, &yalign);
cairo_translate
(cr, (int) ((allocation.width - w) * xalign),
(int) ((allocation.height - h) * yalign));
rounded_rectangle (cr, 0.5, 0.5, w - 1, h - 1, MIN (w, h) * 0.2);
gdk_cairo_set_source_color (cr, &style->base[GTK_STATE_NORMAL]);
cairo_fill_preserve (cr);
if (priv->pixbuf) {
x = (w - gdk_pixbuf_get_width (priv->pixbuf)) * 0.5;
y = (h - gdk_pixbuf_get_height (priv->pixbuf)) * 0.5;
gdk_cairo_set_source_pixbuf (cr, priv->pixbuf, x, y);
cairo_fill_preserve (cr);
}
gdk_cairo_set_source_color (cr, &style->text[GTK_STATE_NORMAL]);
cairo_set_line_width (cr, 1);
cairo_stroke (cr);
cairo_destroy (cr);
return TRUE;
}
static void _gegueb_window_draw(Gegueb_Window *thiz)
{
cairo_t *cr;
//gdk_window_begin_paint_region(thiz->win, thiz->regions);
cr = gdk_cairo_create(thiz->win);
gdk_cairo_region(cr, thiz->regions);
gegueb_document_draw(thiz->doc, cr, thiz->damages);
gdk_region_empty(thiz->regions);
//gdk_window_end_paint(thiz->win);
//gdk_window_flush(thiz->win);
cairo_destroy(cr);
thiz->damages = NULL;
}
static gboolean mdk_text_scroller_expose(GtkWidget *textScroller, GdkEventExpose *event)
{
MdkTextScroller *ts = MDK_TEXT_SCROLLER(textScroller);
cairo_t *cr;
cr = gdk_cairo_create(textScroller->window);
gdk_cairo_region(cr,
event->region);
cairo_clip(cr);
cairo_select_font_face(cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, ts->size);
cairo_move_to(cr, ts->x+ts->xOffset, ts->y+ts->yOffset);
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_show_text(cr, ts->text);
if (ts->width == 0 || ts->height == 0)
{
cairo_text_extents_t ext;
cairo_text_extents(cr, ts->text, &ext);
ts->width = ext.width;
ts->height = ext.height;
}
if (ts->width+ts->xOffset+100 < 0)
{
cairo_move_to(cr, ts->x+ts->xOffset+ts->width+100, ts->y
+ts->yOffset);
cairo_show_text(cr, ts->text);
}
if (ts->x+ts->xOffset+ts->width < 0)
{
ts->xOffset=ts->xOffset+ts->width+100;
}
cairo_stroke(cr);
cairo_destroy(cr);
}
void GraphicsContext::drawFocusRing(const Color& color)
{
if (paintingDisabled())
return;
const Vector<IntRect>& rects = focusRingRects();
unsigned rectCount = rects.size();
cairo_t* cr = m_data->cr;
cairo_save(cr);
cairo_push_group(cr);
cairo_new_path(cr);
#if PLATFORM(GTK)
GdkRegion* reg = gdk_region_new();
for (unsigned i = 0; i < rectCount; i++) {
GdkRectangle rect = rects[i];
gdk_region_union_with_rect(reg, &rect);
}
gdk_cairo_region(cr, reg);
gdk_region_destroy(reg);
setColor(cr, color);
cairo_set_line_width(cr, 2.0f);
setPlatformStrokeStyle(DottedStroke);
#else
int radius = (focusRingWidth() - 1) / 2;
for (unsigned i = 0; i < rectCount; i++)
addPath(Path::createRoundedRectangle(rects[i], FloatSize(radius, radius)));
// Force the alpha to 50%. This matches what the Mac does with outline rings.
Color ringColor(color.red(), color.green(), color.blue(), 127);
setColor(cr, ringColor);
cairo_set_line_width(cr, focusRingWidth());
setPlatformStrokeStyle(SolidStroke);
#endif
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_stroke_preserve(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_WINDING);
cairo_fill(cr);
cairo_pop_group_to_source(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_paint(cr);
cairo_restore(cr);
}
static gboolean
polygon_view_expose (GtkWidget *w, GdkEventExpose *ev)
{
PolygonView *self = (PolygonView *) w;
cairo_t *cr;
cr = gdk_cairo_create (w->window);
gdk_cairo_region (cr, ev->region);
cairo_clip (cr);
polygon_view_draw (self, cr);
cairo_destroy (cr);
return FALSE;
}
static gboolean expose_event(GtkWidget * widget, GdkEventExpose * event)
{
printf("%s\n", __func__);
cairo_t *cr;
cr = gdk_cairo_create(GDK_DRAWABLE(widget->window));
gdk_cairo_region(cr, event->region);
cairo_clip(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0.5, 0.5, 0.5, 1.0);
cairo_paint(cr);
cairo_destroy(cr);
return false;
}
static gboolean
about_dialog_anim_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpAboutDialog *dialog)
{
GtkStyle *style = gtk_widget_get_style (widget);
cairo_t *cr;
GtkAllocation allocation;
gint x, y;
gint width, height;
if (! dialog->visible)
return FALSE;
cr = gdk_cairo_create (event->window);
gdk_cairo_set_source_color (cr, &style->text[GTK_STATE_NORMAL]);
gtk_widget_get_allocation (widget, &allocation);
pango_layout_get_pixel_size (dialog->layout, &width, &height);
x = (allocation.width - width) / 2;
y = (allocation.height - height) / 2;
if (dialog->textrange[1] > 0)
{
GdkRegion *covered_region;
covered_region = gdk_pango_layout_get_clip_region (dialog->layout,
x, y,
dialog->textrange, 1);
gdk_region_intersect (covered_region, event->region);
gdk_cairo_region (cr, covered_region);
cairo_clip (cr);
gdk_region_destroy (covered_region);
}
cairo_move_to (cr, x, y);
pango_cairo_show_layout (cr, dialog->layout);
cairo_destroy (cr);
return FALSE;
}
static gboolean
window_expose_event (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
{
cairo_t *cr;
cr = gdk_cairo_create (gtk_widget_get_window (widget));
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
gdk_cairo_region (cr, event->region);
cairo_set_source_rgba (cr, 1., 1., 1., .5);
cairo_fill (cr);
cairo_destroy (cr);
return FALSE;
}
static void
on_preview_expose_event (GtkWidget *drawing_area,
GdkEventExpose *event,
gpointer data)
{
ScreenshotDialog *dialog = data;
GdkPixbuf *pixbuf = NULL;
gboolean free_pixbuf = FALSE;
cairo_t *cr;
/* Stolen from GtkImage. I really should just make the drawing area an
* image some day */
if (gtk_widget_get_state (drawing_area) != GTK_STATE_NORMAL)
{
GtkIconSource *source;
source = gtk_icon_source_new ();
gtk_icon_source_set_pixbuf (source, dialog->preview_image);
gtk_icon_source_set_size (source, GTK_ICON_SIZE_SMALL_TOOLBAR);
gtk_icon_source_set_size_wildcarded (source, FALSE);
pixbuf = gtk_style_render_icon (drawing_area->style,
source,
gtk_widget_get_direction (drawing_area),
gtk_widget_get_state (drawing_area),
(GtkIconSize) -1,
drawing_area,
"gtk-image");
free_pixbuf = TRUE;
gtk_icon_source_free (source);
}
else
{
pixbuf = g_object_ref (dialog->preview_image);
}
cr = gdk_cairo_create (drawing_area->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
g_object_unref (pixbuf);
}
/* Handler for expose_event on drawing area. */
static gboolean desk_expose_event(GtkWidget * widget, GdkEventExpose * event, PagerDesk * d)
{
GtkStyle * style = gtk_widget_get_style(widget);
if (d->pixmap != NULL)
{
cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
gdk_cairo_region(cr, event->region);
cairo_clip(cr);
/* Recompute the pixmap if needed. */
if (d->dirty)
{
d->dirty = FALSE;
PagerPlugin * pg = d->pg;
/* Erase the pixmap. */
if (d->pixmap != NULL)
{
//GtkWidget * widget = GTK_WIDGET(d->da);
cairo_t *cr0 = cairo_create(d->pixmap);
gdk_cairo_set_source_color(cr0,
((d->desktop_number == d->pg->current_desktop)
? &style->dark[GTK_STATE_SELECTED]
: &style->dark[GTK_STATE_NORMAL]));
cairo_paint(cr0);
check_cairo_status(cr0);
cairo_destroy(cr0);
}
/* Draw tasks onto the pixmap. */
int j;
for (j = 0; j < pg->client_count; j++)
task_update_pixmap(pg->tasks_in_stacking_order[j], d);
}
/* Draw the requested part of the pixmap onto the drawing area. */
GtkAllocation allocation;
gtk_widget_get_allocation(GTK_WIDGET(widget), &allocation);
gdk_cairo_set_source_color(cr,
&style->fg[GTK_WIDGET_STATE(widget)]);
cairo_set_source_surface(cr, d->pixmap, 0, 0);
cairo_paint(cr);
check_cairo_status(cr);
cairo_destroy(cr);
}
return FALSE;
}
