diff options
Diffstat (limited to 'gtk/gtkeventbox.c')
| -rw-r--r-- | gtk/gtkeventbox.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/gtk/gtkeventbox.c b/gtk/gtkeventbox.c new file mode 100644 index 000000000..44a0d7a9a --- /dev/null +++ b/gtk/gtkeventbox.c @@ -0,0 +1,226 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtksignal.h" +#include "gtkeventbox.h" + + +static void gtk_event_box_class_init (GtkEventBoxClass *klass); +static void gtk_event_box_init (GtkEventBox *event_box); +static void gtk_event_box_realize (GtkWidget *widget); +static void gtk_event_box_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void gtk_event_box_size_allocate (GtkWidget *widget, + GtkAllocation *allocation); +static void gtk_event_box_draw (GtkWidget *widget, + GdkRectangle *area); +static gint gtk_event_box_expose (GtkWidget *widget, + GdkEventExpose *event); + + +guint +gtk_event_box_get_type () +{ + static guint event_box_type = 0; + + if (!event_box_type) + { + GtkTypeInfo event_box_info = + { + "GtkEventBox", + sizeof (GtkEventBox), + sizeof (GtkEventBoxClass), + (GtkClassInitFunc) gtk_event_box_class_init, + (GtkObjectInitFunc) gtk_event_box_init, + (GtkArgFunc) NULL, + }; + + event_box_type = gtk_type_unique (gtk_bin_get_type (), &event_box_info); + } + + return event_box_type; +} + +static void +gtk_event_box_class_init (GtkEventBoxClass *class) +{ + GtkWidgetClass *widget_class; + + widget_class = (GtkWidgetClass*) class; + + widget_class->realize = gtk_event_box_realize; + widget_class->size_request = gtk_event_box_size_request; + widget_class->size_allocate = gtk_event_box_size_allocate; + widget_class->draw = gtk_event_box_draw; + widget_class->expose_event = gtk_event_box_expose; +} + +static void +gtk_event_box_init (GtkEventBox *event_box) +{ + GTK_WIDGET_UNSET_FLAGS (event_box, GTK_NO_WINDOW); + GTK_WIDGET_SET_FLAGS (event_box, GTK_BASIC); +} + +GtkWidget* +gtk_event_box_new () +{ + return GTK_WIDGET ( gtk_type_new (gtk_event_box_get_type ())); +} + +static void +gtk_event_box_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + gint attributes_mask; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_EVENT_BOX (widget)); + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.window_type = GDK_WINDOW_CHILD; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) + | GDK_BUTTON_MOTION_MASK + | GDK_BUTTON_PRESS_MASK + | GDK_BUTTON_RELEASE_MASK + | GDK_EXPOSURE_MASK + | GDK_ENTER_NOTIFY_MASK + | GDK_LEAVE_NOTIFY_MASK; + + attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; + + widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +gtk_event_box_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GtkBin *bin; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_EVENT_BOX (widget)); + g_return_if_fail (requisition != NULL); + + bin = GTK_BIN (widget); + + requisition->width = GTK_CONTAINER (widget)->border_width * 2; + requisition->height = GTK_CONTAINER (widget)->border_width * 2; + + if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) + { + gtk_widget_size_request (bin->child, &bin->child->requisition); + + requisition->width += bin->child->requisition.width; + requisition->height += bin->child->requisition.height; + } +} + +static void +gtk_event_box_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkBin *bin; + GtkAllocation child_allocation; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_EVENT_BOX (widget)); + g_return_if_fail (allocation != NULL); + + widget->allocation = *allocation; + bin = GTK_BIN (widget); + + child_allocation.x = 0; + child_allocation.y = 0; + child_allocation.width = allocation->width - GTK_CONTAINER (widget)->border_width * 2; + child_allocation.height = allocation->height - GTK_CONTAINER (widget)->border_width * 2; + + if (GTK_WIDGET_REALIZED (widget)) + { + gdk_window_move_resize (widget->window, + allocation->x + GTK_CONTAINER (widget)->border_width, + allocation->y + GTK_CONTAINER (widget)->border_width, + child_allocation.width, + child_allocation.height); + } + + if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) + { + gtk_widget_size_allocate (bin->child, &child_allocation); + } +} + +static void +gtk_event_box_draw (GtkWidget *widget, + GdkRectangle *area) +{ + GtkBin *bin; + GdkRectangle child_area; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_EVENT_BOX (widget)); + g_return_if_fail (area != NULL); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + bin = GTK_BIN (widget); + + if (bin->child) + { + if (gtk_widget_intersect (bin->child, area, &child_area)) + gtk_widget_draw (bin->child, &child_area); + } + } +} + +static gint +gtk_event_box_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkBin *bin; + GdkEventExpose child_event; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_EVENT_BOX (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + bin = GTK_BIN (widget); + + child_event = *event; + if (bin->child && + GTK_WIDGET_NO_WINDOW (bin->child) && + gtk_widget_intersect (bin->child, &event->area, &child_event.area)) + gtk_widget_event (bin->child, (GdkEvent*) &child_event); + } + + return FALSE; +} + |