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gtk2/gtk/gtkpaned.c
Owen Taylor 11d37c5067 gtkbutton.c gtkclist.c gtkdrawingarea.c gtkentry.c gtkeventbox.c 
Sun Jan 18 09:57:00 1998  Owen Taylor  <owt1@cornell.edu>
* gtkbutton.c gtkclist.c gtkdrawingarea.c gtkentry.c gtkeventbox.c
  gtkfixed.c gtkhandlebox.c gtkhscale.c gtkhscrollbar.c gtkitem.c
  gtklist.c gtkmenushell.c gtkmisc.c gtknotebook.c gtkpaned.c
  gtkpreview.c gtkprogressbar.c gtkruler.c gtktext.c gtktree.c
  gtkviewport.c gtkvscale.c gtkvscrollbar.c gtkwidget.{c,h}

  Added gtk_widget_set_parent and gtk_widget_get_parent. All
  widgets should use:

   gtk_widget_get_parent() instead of widget->parent->window.

  Any widget that wants to have children not in the parent window,
  should use gtk_widget_set_parent () in their realize() and
  add () routines.

  CList and Viewport widgets changed to do this. (Viewport
  widget using code from gtk-fortier-980117-0.patch.)
1998-01-18 15:09:10 +00:00

459 lines
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/* 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 "gtkpaned.h"
static void gtk_paned_class_init (GtkPanedClass *klass);
static void gtk_paned_init (GtkPaned *paned);
static void gtk_paned_destroy (GtkObject *object);
static void gtk_paned_realize (GtkWidget *widget);
static void gtk_paned_map (GtkWidget *widget);
static void gtk_paned_unmap (GtkWidget *widget);
static void gtk_paned_unrealize (GtkWidget *widget);
static gint gtk_paned_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_paned_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_paned_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_paned_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
static GtkContainerClass *parent_class = NULL;
guint
gtk_paned_get_type ()
{
static guint paned_type = 0;
if (!paned_type)
{
GtkTypeInfo paned_info =
{
"GtkPaned",
sizeof (GtkPaned),
sizeof (GtkPanedClass),
(GtkClassInitFunc) gtk_paned_class_init,
(GtkObjectInitFunc) gtk_paned_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
paned_type = gtk_type_unique (gtk_container_get_type (), &paned_info);
}
return paned_type;
}
static void
gtk_paned_class_init (GtkPanedClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (gtk_container_get_type ());
object_class->destroy = gtk_paned_destroy;
widget_class->realize = gtk_paned_realize;
widget_class->map = gtk_paned_map;
widget_class->unmap = gtk_paned_unmap;
widget_class->unrealize = gtk_paned_unrealize;
widget_class->expose_event = gtk_paned_expose;
container_class->add = gtk_paned_add;
container_class->remove = gtk_paned_remove;
container_class->foreach = gtk_paned_foreach;
}
static void
gtk_paned_init (GtkPaned *paned)
{
GTK_WIDGET_SET_FLAGS (paned, GTK_NO_WINDOW);
paned->child1 = NULL;
paned->child2 = NULL;
paned->handle = NULL;
paned->xor_gc = NULL;
paned->handle_size = 10;
paned->gutter_size = 6;
paned->position_set = FALSE;
paned->in_drag = FALSE;
paned->handle_xpos = -1;
paned->handle_ypos = -1;
}
static void
gtk_paned_destroy (GtkObject *object)
{
GtkPaned *paned;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_PANED (object));
paned = GTK_PANED (object);
if (paned->child1)
{
paned->child1->parent = NULL;
gtk_object_unref (GTK_OBJECT (paned->child1));
gtk_widget_destroy (paned->child1);
}
if (paned->child2)
{
paned->child2->parent = NULL;
gtk_object_unref (GTK_OBJECT (paned->child2));
gtk_widget_destroy (paned->child2);
}
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gtk_paned_realize (GtkWidget *widget)
{
GtkPaned *paned;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PANED (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
paned = GTK_PANED (widget);
attributes.x = paned->handle_xpos;
attributes.y = paned->handle_ypos;
attributes.width = paned->handle_size;
attributes.height = paned->handle_size;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.cursor = paned->cursor = gdk_cursor_new (GDK_CROSS);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP |
GDK_WA_CURSOR;
paned->handle = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (paned->handle, widget);
gdk_window_show (paned->handle);
gdk_window_raise (paned->handle);
widget->window = gtk_widget_get_parent_window (widget);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, paned->handle, GTK_STATE_NORMAL);
}
static void
gtk_paned_map (GtkWidget *widget)
{
GtkPaned *paned;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PANED (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
paned = GTK_PANED (widget);
gdk_window_show (paned->handle);
gtk_widget_queue_draw (widget);
if (paned->child1 &&
GTK_WIDGET_VISIBLE (paned->child1) &&
!GTK_WIDGET_MAPPED (paned->child1))
gtk_widget_map (paned->child1);
if (paned->child2 &&
GTK_WIDGET_VISIBLE (paned->child2) &&
!GTK_WIDGET_MAPPED (paned->child2))
gtk_widget_map (paned->child2);
}
static void
gtk_paned_unmap (GtkWidget *widget)
{
GtkPaned *paned;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PANED (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
paned = GTK_PANED (widget);
gdk_window_clear_area (widget->window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
gdk_window_hide (paned->handle);
if (paned->child1 &&
GTK_WIDGET_VISIBLE (paned->child1) &&
GTK_WIDGET_MAPPED (paned->child1))
gtk_widget_unmap (paned->child1);
if (paned->child2 &&
GTK_WIDGET_VISIBLE (paned->child2) &&
GTK_WIDGET_MAPPED (paned->child2))
gtk_widget_unmap (paned->child2);
}
static void
gtk_paned_unrealize (GtkWidget *widget)
{
GtkPaned *paned;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PANED (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED);
paned = GTK_PANED (widget);
gtk_style_detach (widget->style);
if (paned->xor_gc)
gdk_gc_destroy (paned->xor_gc);
if (paned->handle)
{
gdk_window_destroy (paned->handle);
gdk_cursor_destroy (paned->cursor);
}
paned->handle = NULL;
paned->cursor = NULL;
widget->window = NULL;
}
static gint
gtk_paned_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkPaned *paned;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_PANED (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
paned = GTK_PANED (widget);
/* An expose event for the handle */
if (event->window == paned->handle)
{
gdk_window_set_background (paned->handle,
&widget->style->bg[widget->state]);
gdk_window_clear (paned->handle);
gtk_draw_shadow (widget->style, paned->handle,
GTK_WIDGET_STATE(widget),
GTK_SHADOW_OUT, 0, 0,
paned->handle_size, paned->handle_size);
}
else
{
child_event = *event;
if (paned->child1 &&
GTK_WIDGET_NO_WINDOW (paned->child1) &&
gtk_widget_intersect (paned->child1, &event->area, &child_event.area))
gtk_widget_event (paned->child1, (GdkEvent*) &child_event);
if (paned->child2 &&
GTK_WIDGET_NO_WINDOW (paned->child2) &&
gtk_widget_intersect (paned->child2, &event->area, &child_event.area))
gtk_widget_event (paned->child2, (GdkEvent*) &child_event);
/* redraw the groove if necessary */
child_event.area = paned->groove_rectangle;
if (gtk_widget_intersect (widget, &event->area, &child_event.area))
gtk_widget_draw (widget, &child_event.area);
}
}
return FALSE;
}
void
gtk_paned_add1 (GtkPaned *paned,
GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (!paned->child1)
{
gtk_widget_set_parent (widget, GTK_WIDGET (paned));
if (GTK_WIDGET_VISIBLE (widget->parent))
{
if (GTK_WIDGET_REALIZED (widget->parent) &&
!GTK_WIDGET_REALIZED (widget))
gtk_widget_realize (widget);
if (GTK_WIDGET_MAPPED (widget->parent) &&
!GTK_WIDGET_MAPPED (widget))
gtk_widget_map (widget);
}
paned->child1 = widget;
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
gtk_widget_queue_resize (widget);
}
}
void
gtk_paned_add2 (GtkPaned *paned,
GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (!paned->child2)
{
gtk_widget_set_parent (widget, GTK_WIDGET (paned));
if (GTK_WIDGET_VISIBLE (widget->parent))
{
if (GTK_WIDGET_REALIZED (widget->parent) &&
!GTK_WIDGET_REALIZED (widget))
gtk_widget_realize (widget);
if (GTK_WIDGET_MAPPED (widget->parent) &&
!GTK_WIDGET_MAPPED (widget))
gtk_widget_map (widget);
}
paned->child2 = widget;
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
gtk_widget_queue_resize (widget);
}
}
static void
gtk_paned_add (GtkContainer *container,
GtkWidget *widget)
{
GtkPaned *paned;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PANED (container));
g_return_if_fail (widget != NULL);
paned = GTK_PANED (container);
if (!paned->child1)
gtk_paned_add1 (GTK_PANED (container),widget);
else if (!paned->child2)
gtk_paned_add2 (GTK_PANED (container),widget);
}
static void
gtk_paned_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkPaned *paned;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PANED (container));
g_return_if_fail (widget != NULL);
paned = GTK_PANED (container);
if (paned->child1 == widget)
{
gtk_widget_unparent (widget);
paned->child1 = NULL;
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
gtk_widget_queue_resize (GTK_WIDGET (container));
}
else if (paned->child2 == widget)
{
gtk_widget_unparent (widget);
paned->child2 = NULL;
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
static void
gtk_paned_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkPaned *paned;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PANED (container));
g_return_if_fail (callback != NULL);
paned = GTK_PANED (container);
if (paned->child1)
(* callback) (paned->child1, callback_data);
if (paned->child2)
(* callback) (paned->child2, callback_data);
}
void
gtk_paned_handle_size (GtkPaned *paned, guint16 size)
{
gint x,y;
if (paned->handle)
{
gdk_window_get_geometry (paned->handle, &x, &y, NULL, NULL, NULL);
gdk_window_move_resize (paned->handle,
x + paned->handle_size / 2 - size / 2,
y + paned->handle_size / 2 - size / 2,
size, size);
}
paned->handle_size = size;
}
void
gtk_paned_gutter_size (GtkPaned *paned, guint16 size)
{
paned->gutter_size = size;
if (GTK_WIDGET_VISIBLE (GTK_WIDGET (paned)))
gtk_widget_queue_resize (GTK_WIDGET (paned));
}
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