diff options
Diffstat (limited to 'applets/notification_area/status-notifier/sn-flat-button.c')
| -rw-r--r-- | applets/notification_area/status-notifier/sn-flat-button.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/applets/notification_area/status-notifier/sn-flat-button.c b/applets/notification_area/status-notifier/sn-flat-button.c new file mode 100644 index 00000000..d920dadf --- /dev/null +++ b/applets/notification_area/status-notifier/sn-flat-button.c @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2017 Colomban Wendling <[email protected]> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* + * A GtkButton that doesn't draw anything specific but the focus, and pass + * all drawing and sizing requests to its child. + */ + +#define SN_FLAT_BUTTON_C + +#include <gtk/gtk.h> + +#include "sn-flat-button.h" + +G_DEFINE_TYPE (SnFlatButton, + sn_flat_button, + GTK_TYPE_BUTTON) + +static gboolean +sn_flat_button_draw (GtkWidget *widget, + cairo_t *cr) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_container_propagate_draw (GTK_CONTAINER (widget), child, cr); + + if (gtk_widget_is_drawable (widget) && gtk_widget_has_focus (widget)) + { + GtkStyleContext *context = gtk_widget_get_style_context (widget); + gdouble x1, y1, x2, y2; + + cairo_clip_extents (cr, &x1, &y1, &x2, &y2); + gtk_render_focus (context, cr, x1, y1, x2 - x1, y2 - y1); + } + + return child != NULL; +} + +static void +sn_flat_button_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkWidget *child; + + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->size_allocate (widget, + allocation); + + child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child && gtk_widget_get_visible (child)) + gtk_widget_size_allocate (child, allocation); +} + +static GtkSizeRequestMode +sn_flat_button_get_request_mode (GtkWidget *widget) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + return gtk_widget_get_request_mode (child); + else + return GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_request_mode (widget); +} + +static void +sn_flat_button_get_preferred_height (GtkWidget *widget, + gint *min, + gint *nat) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_widget_get_preferred_height (child, min, nat); + else + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height (widget, min, nat); +} + +static void +sn_flat_button_get_preferred_width (GtkWidget *widget, + gint *min, + gint *nat) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_widget_get_preferred_width (child, min, nat); + else + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_width (widget, min, nat); +} + +static void +sn_flat_button_get_preferred_height_for_width (GtkWidget *widget, + gint width, + gint *min, + gint *nat) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_widget_get_preferred_height_for_width (child, width, min, nat); + else + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height_for_width (widget, width, min, nat); +} + +static void +sn_flat_button_get_preferred_width_for_height (GtkWidget *widget, + gint height, + gint *min, + gint *nat) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_widget_get_preferred_width_for_height (child, height, min, nat); + else + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_width_for_height (widget, height, min, nat); +} + +static void +sn_flat_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget, + gint width, + gint *min, + gint *nat, + gint *min_baseline, + gint *nat_baseline) +{ + GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget)); + + if (child) + gtk_widget_get_preferred_height_and_baseline_for_width (child, width, min, nat, + min_baseline, nat_baseline); + else + GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height_and_baseline_for_width (widget, width, + min, nat, + min_baseline, nat_baseline); +} + +static void +sn_flat_button_class_init (SnFlatButtonClass *klass) +{ + GtkWidgetClass *widget_class; + + widget_class = GTK_WIDGET_CLASS (klass); + + widget_class->draw = sn_flat_button_draw; + widget_class->size_allocate = sn_flat_button_size_allocate; + widget_class->get_request_mode = sn_flat_button_get_request_mode; + widget_class->get_preferred_height = sn_flat_button_get_preferred_height; + widget_class->get_preferred_height_for_width = sn_flat_button_get_preferred_height_for_width; + widget_class->get_preferred_height_and_baseline_for_width = sn_flat_button_get_preferred_height_and_baseline_for_width; + widget_class->get_preferred_width = sn_flat_button_get_preferred_width; + widget_class->get_preferred_width_for_height = sn_flat_button_get_preferred_width_for_height; +} + +static void +sn_flat_button_init (SnFlatButton *self) +{ + gtk_button_set_relief (GTK_BUTTON (self), GTK_RELIEF_NONE); +} |