void ScrollbarThemeGtk::paintButton(GraphicsContext* context, ScrollbarThemeClient* scrollbar, const IntRect& rect, ScrollbarPart part)
{
GtkStyleContext* styleContext = gtkScrollbarStyleContext();
gtk_style_context_save(styleContext);
ScrollbarOrientation orientation = scrollbar->orientation();
applyScrollbarStyleContextClasses(styleContext, orientation);
guint flags = 0;
if ((BackButtonStartPart == part && scrollbar->currentPos())
|| (BackButtonEndPart == part && scrollbar->currentPos())
|| (ForwardButtonEndPart == part && scrollbar->currentPos() != scrollbar->maximum())
|| (ForwardButtonStartPart == part && scrollbar->currentPos() != scrollbar->maximum())) {
if (part == scrollbar->pressedPart())
flags |= GTK_STATE_FLAG_ACTIVE;
if (part == scrollbar->hoveredPart())
flags |= GTK_STATE_FLAG_PRELIGHT;
} else
flags |= GTK_STATE_FLAG_INSENSITIVE;
gtk_style_context_set_state(styleContext, static_cast<GtkStateFlags>(flags));
gtk_style_context_add_class(styleContext, GTK_STYLE_CLASS_BUTTON);
gtk_render_background(styleContext, context->platformContext()->cr(), rect.x(), rect.y(), rect.width(), rect.height());
gtk_render_frame(styleContext, context->platformContext()->cr(), rect.x(), rect.y(), rect.width(), rect.height());
gfloat arrowScaling;
gtk_style_context_get_style(styleContext, "arrow-scaling", &arrowScaling, nullptr);
double arrowSize = std::min(rect.width(), rect.height()) * arrowScaling;
FloatPoint arrowPoint(
rect.x() + (rect.width() - arrowSize) / 2,
rect.y() + (rect.height() - arrowSize) / 2);
if (flags & GTK_STATE_FLAG_ACTIVE) {
gint arrowDisplacementX, arrowDisplacementY;
gtk_style_context_get_style(styleContext, "arrow-displacement-x", &arrowDisplacementX, "arrow-displacement-y", &arrowDisplacementY, nullptr);
arrowPoint.move(arrowDisplacementX, arrowDisplacementY);
}
gdouble angle;
if (orientation == VerticalScrollbar)
angle = (part == ForwardButtonEndPart || part == ForwardButtonStartPart) ? G_PI : 0;
else
angle = (part == ForwardButtonEndPart || part == ForwardButtonStartPart) ? G_PI / 2 : 3 * (G_PI / 2);
gtk_render_arrow(styleContext, context->platformContext()->cr(), angle, arrowPoint.x(), arrowPoint.y(), arrowSize);
gtk_style_context_restore(styleContext);
}
/* When can_focus is true, GtkButton allocates larger size than requested *
* and causes the panel image to grow indefinitely. *
* This workaround compensates for this difference. *
* Details in https://bugzilla.gnome.org/show_bug.cgi?id=698030 *
*/
static gint
xfce_panel_image_padding_correction (GtkWidget *widget)
{
GtkWidget *parent;
GtkStyleContext *context;
gint focus_width;
gint focus_pad;
gint correction;
parent = gtk_widget_get_parent (widget);
if (parent != NULL &&
GTK_IS_BUTTON (parent) &&
!gtk_widget_get_can_focus (parent))
{
context = gtk_widget_get_style_context (parent);
gtk_style_context_get_style (context,
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
correction = (focus_width + focus_pad) * 2;
}
else
{
correction = 0;
}
return correction;
}
void ScrollbarThemeGtk::updateThemeProperties()
{
gtk_style_context_get_style(
gtkScrollbarStyleContext(),
"min-slider-length", &m_minThumbLength,
"slider-width", &m_thumbFatness,
"trough-border", &m_troughBorderWidth,
"stepper-size", &m_stepperSize,
"stepper-spacing", &m_stepperSpacing,
"trough-under-steppers", &m_troughUnderSteppers,
"has-backward-stepper", &m_hasBackButtonStartPart,
"has-forward-stepper", &m_hasForwardButtonEndPart,
"has-secondary-backward-stepper", &m_hasBackButtonEndPart,
"has-secondary-forward-stepper", &m_hasForwardButtonStartPart,
nullptr);
updateScrollbarsFrameThickness();
}
static void
gtk_level_bar_get_min_block_size (GtkLevelBar *self,
gint *block_width,
gint *block_height)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder border, tmp, tmp2;
gint min_width, min_height;
context = gtk_widget_get_style_context (widget);
gtk_style_context_save_to_node (context, self->priv->block_node[0]);
state = gtk_style_context_get_state (context);
gtk_style_context_get_border (context, state, &border);
gtk_style_context_get_padding (context, state, &tmp);
gtk_style_context_get_margin (context, state, &tmp2);
gtk_style_context_restore (context);
gtk_style_context_get_style (context,
"min-block-width", &min_width,
"min-block-height", &min_height,
NULL);
border.top += tmp.top;
border.right += tmp.right;
border.bottom += tmp.bottom;
border.left += tmp.left;
border.top += tmp2.top;
border.right += tmp2.right;
border.bottom += tmp2.bottom;
border.left += tmp2.left;
if (block_width)
*block_width = MAX (border.left + border.right, min_width);
if (block_height)
*block_height = MAX (border.top + border.bottom, min_height);
}
static void
gtk_level_bar_get_min_block_size (GtkLevelBar *self,
gint *block_width,
gint *block_height)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkStyleContext *context = gtk_widget_get_style_context (widget);
GtkStateFlags flags = gtk_widget_get_state_flags (widget);
GtkBorder border, tmp, tmp2;
gint min_width, min_height;
gtk_style_context_save (context);
gtk_style_context_add_class (context, STYLE_CLASS_FILL_BLOCK);
gtk_style_context_get_border (context, flags, &border);
gtk_style_context_get_padding (context, flags, &tmp);
gtk_style_context_get_margin (context, flags, &tmp2);
gtk_style_context_restore (context);
gtk_style_context_get_style (context,
"min-block-width", &min_width,
"min-block-height", &min_height,
NULL);
border.top += tmp.top;
border.right += tmp.right;
border.bottom += tmp.bottom;
border.left += tmp.left;
border.top += tmp2.top;
border.right += tmp2.right;
border.bottom += tmp2.bottom;
border.left += tmp2.left;
if (block_width)
*block_width = MAX (border.left + border.right, min_width);
if (block_height)
*block_height = MAX (border.top + border.bottom, min_height);
}
MetaTilePreview *
meta_tile_preview_new (int screen_number,
gboolean composited)
{
MetaTilePreview *preview;
GdkScreen *screen;
screen = gdk_display_get_screen (gdk_display_get_default (), screen_number);
preview = g_new (MetaTilePreview, 1);
preview->preview_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_screen (GTK_WINDOW (preview->preview_window), screen);
gtk_widget_set_app_paintable (preview->preview_window, TRUE);
preview->preview_color = NULL;
preview->tile_rect.x = preview->tile_rect.y = 0;
preview->tile_rect.width = preview->tile_rect.height = 0;
preview->has_alpha = composited &&
(gdk_screen_get_rgba_visual (screen) != NULL);
if (preview->has_alpha)
{
GtkStyleContext *context;
GtkWidgetPath *path;
guchar selection_alpha = 0xFF;
gtk_widget_set_visual (preview->preview_window,
gdk_screen_get_rgba_visual (screen));
path = gtk_widget_path_new ();
gtk_widget_path_append_type (path, GTK_TYPE_ICON_VIEW);
context = gtk_style_context_new ();
gtk_style_context_set_path (context, path);
gtk_style_context_add_class (context,
GTK_STYLE_CLASS_RUBBERBAND);
gtk_widget_path_free (path);
gtk_style_context_get (context, GTK_STATE_FLAG_SELECTED,
"background-color", &preview->preview_color,
NULL);
/* The background-color for the .rubberband class should probably
* contain the correct alpha value - unfortunately, at least for now
* it doesn't. Hopefully the following workaround can be removed
* when GtkIconView gets ported to GtkStyleContext.
*/
gtk_style_context_get_style (context,
"selection-box-alpha", &selection_alpha,
NULL);
preview->preview_color->alpha = (double)selection_alpha / 0xFF;
g_object_unref (context);
}
/* We make an assumption that XCreateWindow will be the first operation
* when calling gtk_widget_realize() (via gdk_window_new()), or that it
* is at least "close enough".
*/
preview->create_serial = XNextRequest (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
gtk_widget_realize (preview->preview_window);
g_signal_connect (preview->preview_window, "draw",
G_CALLBACK (meta_tile_preview_draw), preview);
return preview;
}
static void
nemo_cell_renderer_disk_render (GtkCellRenderer *cell,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags)
{
NemoCellRendererDisk *cellprogress = NEMO_CELL_RENDERER_DISK (cell);
gint x, y, w;
gint xpad, ypad;
gint full;
gboolean show = cellprogress->show_disk_full_percent;
GtkStyleContext *context;
if (show) {
context = gtk_widget_get_style_context (widget);
GdkColor *gdk_bg_color, *gdk_fg_color;
GdkRGBA bg_color, fg_color;
gint bar_width, bar_radius, bottom_padding, max_length;
gtk_style_context_get_style (context,
"disk-full-bg-color", &gdk_bg_color,
"disk-full-fg-color", &gdk_fg_color,
"disk-full-bar-width", &bar_width,
"disk-full-bar-radius", &bar_radius,
"disk-full-bottom-padding", &bottom_padding,
"disk-full-max-length", &max_length,
NULL);
if (gdk_bg_color) {
convert_color (gdk_bg_color, &bg_color);
gdk_color_free (gdk_bg_color);
} else {
use_default_color (&bg_color);
}
if (gdk_fg_color) {
convert_color (gdk_fg_color, &fg_color);
gdk_color_free (gdk_fg_color);
} else {
use_default_color (&fg_color);
}
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
x = cell_area->x + xpad;
y = cell_area->y + cell_area->height - bar_width - bottom_padding;
w = cell_area->width - xpad * 2;
w = w < max_length ? w : max_length;
full = (int) (((float) cellprogress->disk_full_percent / 100.0) * (float) w);
gtk_style_context_save (context);
cairo_save (cr);
gdk_cairo_set_source_rgba (cr, &bg_color);
cairo_rectangle_with_radius_corners (cr, x, y, w, bar_width, bar_radius);
cairo_fill (cr);
cairo_restore (cr);
cairo_save (cr);
gdk_cairo_set_source_rgba (cr, &fg_color);
cairo_rectangle_with_radius_corners (cr, x, y, full, bar_width, bar_radius);
cairo_fill (cr);
cairo_restore (cr);
gtk_style_context_restore (context);
}
GTK_CELL_RENDERER_CLASS (parent_class)->render (cell,
cr,
widget,
background_area,
cell_area,
flags);
}
static void update_icon(ShowDesktopData* sdd)
{
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding;
int width, height;
GdkPixbuf* icon;
GdkPixbuf* scaled;
int icon_size;
GError* error;
#if !GTK_CHECK_VERSION (3, 20, 0)
int focus_width = 0;
int focus_pad = 0;
#endif
int thickness = 0;
if (!sdd->icon_theme)
return;
state = gtk_widget_get_state_flags (sdd->button);
context = gtk_widget_get_style_context (sdd->button);
gtk_style_context_get_padding (context, state, &padding);
#if !GTK_CHECK_VERSION (3, 20, 0)
gtk_style_context_get_style (context,
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
#endif
switch (sdd->orient) {
case GTK_ORIENTATION_HORIZONTAL:
thickness = padding.top + padding.bottom;
break;
case GTK_ORIENTATION_VERTICAL:
thickness = padding.left + padding.right;
break;
}
#if GTK_CHECK_VERSION (3, 20, 0)
icon_size = sdd->size - thickness;
#else
icon_size = sdd->size - 2 * (focus_width + focus_pad) - thickness;
#endif
if (icon_size < 22)
icon_size = 16;
else if (icon_size < 32)
icon_size = 22;
else if (icon_size < 48)
icon_size = 32;
error = NULL;
icon = gtk_icon_theme_load_icon (sdd->icon_theme, SHOW_DESKTOP_ICON, icon_size, 0, &error);
if (icon == NULL)
{
g_printerr(_("Failed to load %s: %s\n"), SHOW_DESKTOP_ICON, error ? error->message : _("Icon not found"));
if (error)
{
g_error_free(error);
error = NULL;
}
gtk_image_set_from_icon_name (GTK_IMAGE (sdd->image), "image-missing", GTK_ICON_SIZE_SMALL_TOOLBAR);
return;
}
width = gdk_pixbuf_get_width(icon);
height = gdk_pixbuf_get_height(icon);
scaled = NULL;
/* Make it fit on the given panel */
switch (sdd->orient)
{
case GTK_ORIENTATION_HORIZONTAL:
width = (icon_size * width) / height;
height = icon_size;
break;
case GTK_ORIENTATION_VERTICAL:
height = (icon_size * height) / width;
width = icon_size;
break;
}
scaled = gdk_pixbuf_scale_simple(icon, width, height, GDK_INTERP_BILINEAR);
if (scaled != NULL)
{
gtk_image_set_from_pixbuf(GTK_IMAGE(sdd->image), scaled);
g_object_unref(scaled);
}
else
{
gtk_image_set_from_pixbuf (GTK_IMAGE (sdd->image), icon);
}
g_object_unref (icon);
}
