/* * Copyright (C) 2017 Colomban Wendling <cwendling@hypra.fr> * * 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); }