forked from AuroraMiddleware/gtk
cceabe57ba
Tue Dec 15 11:37:05 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmain.c: Fixed up some warnings.
Tue Dec 15 10:32:01 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtk{h,v,}paned.{c,h}: Add new functions
gtk_paned_set_position(),
gtk_paned_pack1/2(). The latter take a
shrink and resize parameters, that allows setting
minimum sizes and getting 'relative' resizing.
536 lines
14 KiB
C
536 lines
14 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gtkpaned.h"
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static void gtk_paned_class_init (GtkPanedClass *klass);
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static void gtk_paned_init (GtkPaned *paned);
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static void gtk_paned_realize (GtkWidget *widget);
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static void gtk_paned_map (GtkWidget *widget);
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static void gtk_paned_unmap (GtkWidget *widget);
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static void gtk_paned_unrealize (GtkWidget *widget);
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static gint gtk_paned_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_paned_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_paned_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_paned_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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static GtkType gtk_paned_child_type (GtkContainer *container);
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static GtkContainerClass *parent_class = NULL;
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GtkType
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gtk_paned_get_type (void)
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{
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static GtkType paned_type = 0;
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if (!paned_type)
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{
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static const GtkTypeInfo paned_info =
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{
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"GtkPaned",
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sizeof (GtkPaned),
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sizeof (GtkPanedClass),
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(GtkClassInitFunc) gtk_paned_class_init,
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(GtkObjectInitFunc) gtk_paned_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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paned_type = gtk_type_unique (GTK_TYPE_CONTAINER, &paned_info);
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}
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return paned_type;
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}
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static void
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gtk_paned_class_init (GtkPanedClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
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widget_class->realize = gtk_paned_realize;
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widget_class->map = gtk_paned_map;
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widget_class->unmap = gtk_paned_unmap;
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widget_class->unrealize = gtk_paned_unrealize;
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widget_class->expose_event = gtk_paned_expose;
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container_class->add = gtk_paned_add;
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container_class->remove = gtk_paned_remove;
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container_class->forall = gtk_paned_forall;
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container_class->child_type = gtk_paned_child_type;
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}
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static GtkType
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gtk_paned_child_type (GtkContainer *container)
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{
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if (!GTK_PANED (container)->child1 || !GTK_PANED (container)->child2)
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return GTK_TYPE_WIDGET;
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else
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return GTK_TYPE_NONE;
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}
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static void
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gtk_paned_init (GtkPaned *paned)
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{
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GTK_WIDGET_UNSET_FLAGS (paned, GTK_NO_WINDOW);
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paned->child1 = NULL;
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paned->child2 = NULL;
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paned->handle = NULL;
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paned->xor_gc = NULL;
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paned->handle_size = 10;
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paned->gutter_size = 6;
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paned->position_set = FALSE;
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paned->last_allocation = -1;
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paned->in_drag = FALSE;
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paned->handle_xpos = -1;
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paned->handle_ypos = -1;
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}
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static void
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gtk_paned_realize (GtkWidget *widget)
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{
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GtkPaned *paned;
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GdkWindowAttr attributes;
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gint attributes_mask;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_PANED (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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paned = GTK_PANED (widget);
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attributes.x = widget->allocation.x;
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attributes.y = widget->allocation.y;
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attributes.width = widget->allocation.width;
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attributes.height = widget->allocation.height;
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
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&attributes, attributes_mask);
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gdk_window_set_user_data (widget->window, paned);
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attributes.x = paned->handle_xpos;
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attributes.y = paned->handle_ypos;
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attributes.width = paned->handle_size;
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attributes.height = paned->handle_size;
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attributes.cursor = gdk_cursor_new (GDK_CROSS);
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attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_POINTER_MOTION_MASK |
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GDK_POINTER_MOTION_HINT_MASK);
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attributes_mask |= GDK_WA_CURSOR;
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paned->handle = gdk_window_new (widget->window,
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&attributes, attributes_mask);
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gdk_window_set_user_data (paned->handle, paned);
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gdk_cursor_destroy (attributes.cursor);
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widget->style = gtk_style_attach (widget->style, widget->window);
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gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
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gtk_style_set_background (widget->style, paned->handle, GTK_STATE_NORMAL);
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gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
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gdk_window_show (paned->handle);
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}
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static void
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gtk_paned_map (GtkWidget *widget)
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{
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GtkPaned *paned;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_PANED (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
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paned = GTK_PANED (widget);
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gdk_window_show (widget->window);
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if (paned->child1 &&
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GTK_WIDGET_VISIBLE (paned->child1) &&
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!GTK_WIDGET_MAPPED (paned->child1))
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gtk_widget_map (paned->child1);
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if (paned->child2 &&
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GTK_WIDGET_VISIBLE (paned->child2) &&
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!GTK_WIDGET_MAPPED (paned->child2))
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gtk_widget_map (paned->child2);
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}
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static void
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gtk_paned_unmap (GtkWidget *widget)
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{
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_PANED (widget));
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GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
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gdk_window_hide (widget->window);
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}
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static void
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gtk_paned_unrealize (GtkWidget *widget)
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{
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GtkPaned *paned;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_PANED (widget));
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paned = GTK_PANED (widget);
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if (paned->xor_gc)
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{
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gdk_gc_destroy (paned->xor_gc);
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paned->xor_gc = NULL;
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}
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if (paned->handle)
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{
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gdk_window_set_user_data (paned->handle, NULL);
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gdk_window_destroy (paned->handle);
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paned->handle = NULL;
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}
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if (GTK_WIDGET_CLASS (parent_class)->unrealize)
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(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
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}
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static gint
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gtk_paned_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkPaned *paned;
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GdkEventExpose child_event;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_PANED (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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paned = GTK_PANED (widget);
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/* An expose event for the handle */
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if (event->window == paned->handle)
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{
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gtk_paint_box (widget->style, paned->handle,
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GTK_WIDGET_STATE(widget),
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GTK_SHADOW_OUT,
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&event->area, widget, "paned",
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0, 0,
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paned->handle_size, paned->handle_size);
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}
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else
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{
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child_event = *event;
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if (paned->child1 &&
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GTK_WIDGET_NO_WINDOW (paned->child1) &&
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gtk_widget_intersect (paned->child1, &event->area, &child_event.area))
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gtk_widget_event (paned->child1, (GdkEvent*) &child_event);
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if (paned->child2 &&
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GTK_WIDGET_NO_WINDOW (paned->child2) &&
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gtk_widget_intersect (paned->child2, &event->area, &child_event.area))
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gtk_widget_event (paned->child2, (GdkEvent*) &child_event);
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/* redraw the groove if necessary */
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if (gdk_rectangle_intersect (&paned->groove_rectangle,
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&event->area,
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&child_event.area))
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gtk_widget_draw (widget, &child_event.area);
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}
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}
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return FALSE;
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}
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void
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gtk_paned_add1 (GtkPaned *paned,
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GtkWidget *widget)
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{
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gtk_paned_pack1 (paned, widget, FALSE, TRUE);
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}
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void
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gtk_paned_add2 (GtkPaned *paned,
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GtkWidget *widget)
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{
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gtk_paned_pack2 (paned, widget, TRUE, TRUE);
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}
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void
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gtk_paned_pack1 (GtkPaned *paned,
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GtkWidget *widget,
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gboolean resize,
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gboolean shrink)
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{
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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g_return_if_fail (widget != NULL);
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if (!paned->child1)
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{
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gtk_widget_set_parent (widget, GTK_WIDGET (paned));
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if (GTK_WIDGET_VISIBLE (widget->parent))
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{
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if (GTK_WIDGET_REALIZED (widget->parent) &&
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!GTK_WIDGET_REALIZED (widget))
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gtk_widget_realize (widget);
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if (GTK_WIDGET_MAPPED (widget->parent) &&
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!GTK_WIDGET_MAPPED (widget))
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gtk_widget_map (widget);
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}
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paned->child1 = widget;
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paned->child1_resize = resize;
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paned->child1_shrink = shrink;
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
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gtk_widget_queue_resize (widget);
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}
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}
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void
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gtk_paned_pack2 (GtkPaned *paned,
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GtkWidget *widget,
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gboolean resize,
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gboolean shrink)
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{
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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g_return_if_fail (widget != NULL);
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if (!paned->child2)
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{
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gtk_widget_set_parent (widget, GTK_WIDGET (paned));
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if (GTK_WIDGET_VISIBLE (widget->parent))
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{
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if (GTK_WIDGET_REALIZED (widget->parent) &&
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!GTK_WIDGET_REALIZED (widget))
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gtk_widget_realize (widget);
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if (GTK_WIDGET_MAPPED (widget->parent) &&
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!GTK_WIDGET_MAPPED (widget))
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gtk_widget_map (widget);
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}
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paned->child2 = widget;
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paned->child2_resize = resize;
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paned->child2_shrink = shrink;
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
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gtk_widget_queue_resize (widget);
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}
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}
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static void
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gtk_paned_add (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkPaned *paned;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_PANED (container));
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g_return_if_fail (widget != NULL);
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paned = GTK_PANED (container);
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if (!paned->child1)
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gtk_paned_add1 (GTK_PANED (container),widget);
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else if (!paned->child2)
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gtk_paned_add2 (GTK_PANED (container),widget);
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}
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static void
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gtk_paned_remove (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkPaned *paned;
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gboolean was_visible;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_PANED (container));
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g_return_if_fail (widget != NULL);
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paned = GTK_PANED (container);
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was_visible = GTK_WIDGET_VISIBLE (widget);
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if (paned->child1 == widget)
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{
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gtk_widget_unparent (widget);
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paned->child1 = NULL;
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if (was_visible && GTK_WIDGET_VISIBLE (container))
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gtk_widget_queue_resize (GTK_WIDGET (container));
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}
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else if (paned->child2 == widget)
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{
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gtk_widget_unparent (widget);
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paned->child2 = NULL;
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if (was_visible && GTK_WIDGET_VISIBLE (container))
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gtk_widget_queue_resize (GTK_WIDGET (container));
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}
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}
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static void
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gtk_paned_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data)
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{
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GtkPaned *paned;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_PANED (container));
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g_return_if_fail (callback != NULL);
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paned = GTK_PANED (container);
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if (paned->child1)
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(* callback) (paned->child1, callback_data);
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if (paned->child2)
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(* callback) (paned->child2, callback_data);
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}
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void
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gtk_paned_set_position (GtkPaned *paned,
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gint position)
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{
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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if (position >= 0)
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{
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paned->child1_size = CLAMP (position,
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paned->min_position,
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paned->max_position);
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paned->position_set = TRUE;
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}
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else
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paned->position_set = FALSE;
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gtk_widget_queue_resize (GTK_WIDGET (paned));
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}
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void
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gtk_paned_set_handle_size (GtkPaned *paned,
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guint16 size)
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{
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gint x,y;
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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if (paned->handle)
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{
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gdk_window_get_geometry (paned->handle, &x, &y, NULL, NULL, NULL);
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gdk_window_move_resize (paned->handle,
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x + paned->handle_size / 2 - size / 2,
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y + paned->handle_size / 2 - size / 2,
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size, size);
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}
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paned->handle_size = size;
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}
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void
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gtk_paned_set_gutter_size (GtkPaned *paned,
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guint16 size)
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{
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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paned->gutter_size = size;
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if (GTK_WIDGET_VISIBLE (GTK_WIDGET (paned)))
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gtk_widget_queue_resize (GTK_WIDGET (paned));
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}
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void
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gtk_paned_compute_position (GtkPaned *paned,
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gint allocation,
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gint child1_req,
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gint child2_req)
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{
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g_return_if_fail (paned != NULL);
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g_return_if_fail (GTK_IS_PANED (paned));
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paned->min_position = paned->child1_shrink ? 0 : child1_req;
|
|
|
|
paned->max_position = allocation;
|
|
if (!paned->child2_shrink)
|
|
paned->max_position -= child2_req;
|
|
|
|
if (!paned->position_set)
|
|
{
|
|
if (paned->child1_resize && !paned->child2_resize)
|
|
paned->child1_size = allocation - child2_req;
|
|
else if (!paned->child1_resize && paned->child2_resize)
|
|
paned->child1_size = child1_req;
|
|
else
|
|
paned->child1_size = allocation * ((gdouble)child1_req / (child1_req + child2_req));
|
|
}
|
|
else
|
|
{
|
|
if (paned->last_allocation < 0)
|
|
paned->last_allocation = allocation;
|
|
|
|
if (paned->child1_resize && !paned->child2_resize)
|
|
paned->child1_size += (allocation - paned->last_allocation);
|
|
else if (!(!paned->child1_resize && paned->child2_resize))
|
|
paned->child1_size = allocation * ((gdouble)paned->child1_size / (paned->last_allocation));
|
|
}
|
|
|
|
paned->child1_size = CLAMP (paned->child1_size,
|
|
paned->min_position,
|
|
paned->max_position);
|
|
|
|
paned->last_allocation = allocation;
|
|
|
|
}
|