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gtk2/gtk/gtktreeitem.c

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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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gtklabel.h"
#include "gtktree.h"
#include "gtktreeitem.h"
#include "gtkeventbox.h"
#include "gtkpixmap.h"
#include "gtkmain.h"
#include "gtksignal.h"
#include "tree_plus.xpm"
#include "tree_minus.xpm"
#define DEFAULT_DELTA 9
enum {
COLLAPSE_TREE,
EXPAND_TREE,
LAST_SIGNAL
};
typedef struct _GtkTreePixmaps GtkTreePixmaps;
struct _GtkTreePixmaps {
gint refcount;
GdkColormap *colormap;
GdkPixmap *pixmap_plus;
GdkPixmap *pixmap_minus;
GdkBitmap *mask_plus;
GdkBitmap *mask_minus;
};
static GList *pixmaps = NULL;
typedef void (*GtkTreeItemSignal) (GtkObject *object,
gpointer arg1,
gpointer data);
static void gtk_tree_item_class_init (GtkTreeItemClass *klass);
static void gtk_tree_item_init (GtkTreeItem *tree_item);
static void gtk_tree_item_realize (GtkWidget *widget);
static void gtk_tree_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_tree_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_tree_item_draw (GtkWidget *widget,
GdkRectangle *area);
static void gtk_tree_item_draw_focus (GtkWidget *widget);
static gint gtk_tree_item_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_tree_item_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_tree_item_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_item_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_real_tree_item_select (GtkItem *item);
static void gtk_real_tree_item_deselect (GtkItem *item);
static void gtk_real_tree_item_toggle (GtkItem *item);
static void gtk_real_tree_item_expand (GtkTreeItem *item);
static void gtk_real_tree_item_collapse (GtkTreeItem *item);
static void gtk_real_tree_item_expand (GtkTreeItem *item);
static void gtk_real_tree_item_collapse (GtkTreeItem *item);
static void gtk_tree_item_destroy (GtkObject *object);
static void gtk_tree_item_subtree_button_click (GtkWidget *widget);
static void gtk_tree_item_subtree_button_changed_state (GtkWidget *widget);
static void gtk_tree_item_map(GtkWidget*);
static void gtk_tree_item_unmap(GtkWidget*);
static void gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item);
static void gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item);
static GtkItemClass *parent_class = NULL;
static GtkContainerClass *container_class = NULL;
static guint tree_item_signals[LAST_SIGNAL] = { 0 };
guint
gtk_tree_item_get_type ()
{
static guint tree_item_type = 0;
if (!tree_item_type)
{
GtkTypeInfo tree_item_info =
{
"GtkTreeItem",
sizeof (GtkTreeItem),
sizeof (GtkTreeItemClass),
(GtkClassInitFunc) gtk_tree_item_class_init,
(GtkObjectInitFunc) gtk_tree_item_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
tree_item_type = gtk_type_unique (gtk_item_get_type (), &tree_item_info);
}
return tree_item_type;
}
static void
gtk_tree_item_class_init (GtkTreeItemClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkItemClass *item_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
item_class = (GtkItemClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (gtk_item_get_type ());
tree_item_signals[EXPAND_TREE] =
gtk_signal_new ("expand",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkTreeItemClass, expand),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
tree_item_signals[COLLAPSE_TREE] =
gtk_signal_new ("collapse",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkTreeItemClass, collapse),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, tree_item_signals, LAST_SIGNAL);
object_class->destroy = gtk_tree_item_destroy;
widget_class->realize = gtk_tree_item_realize;
widget_class->size_request = gtk_tree_item_size_request;
widget_class->size_allocate = gtk_tree_item_size_allocate;
widget_class->draw = gtk_tree_item_draw;
widget_class->draw_focus = gtk_tree_item_draw_focus;
widget_class->button_press_event = gtk_tree_item_button_press;
widget_class->expose_event = gtk_tree_item_expose;
widget_class->focus_in_event = gtk_tree_item_focus_in;
widget_class->focus_out_event = gtk_tree_item_focus_out;
widget_class->map = gtk_tree_item_map;
widget_class->unmap = gtk_tree_item_unmap;
item_class->select = gtk_real_tree_item_select;
item_class->deselect = gtk_real_tree_item_deselect;
item_class->toggle = gtk_real_tree_item_toggle;
class->expand = gtk_real_tree_item_expand;
class->collapse = gtk_real_tree_item_collapse;
container_class = (GtkContainerClass*) parent_class;
}
/* callback for event box mouse event */
static void
gtk_tree_item_subtree_button_click (GtkWidget *widget)
{
GtkTreeItem* item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
item = (GtkTreeItem*) gtk_object_get_user_data (GTK_OBJECT (widget));
if (!GTK_WIDGET_IS_SENSITIVE (item))
return;
if (item->expanded)
gtk_tree_item_collapse (item);
else
gtk_tree_item_expand (item);
}
/* callback for event box state changed */
static void
gtk_tree_item_subtree_button_changed_state (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
if (GTK_WIDGET_VISIBLE (widget))
{
if (widget->state == GTK_STATE_NORMAL)
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
else
gdk_window_set_background (widget->window, &widget->style->bg[widget->state]);
if (GTK_WIDGET_DRAWABLE (widget))
gdk_window_clear_area (widget->window, 0, 0,
widget->allocation.width, widget->allocation.height);
}
}
static void
gtk_tree_item_init (GtkTreeItem *tree_item)
{
GtkWidget *eventbox, *pixmapwid;
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
tree_item->expanded = FALSE;
tree_item->subtree = NULL;
GTK_WIDGET_SET_FLAGS (tree_item, GTK_CAN_FOCUS);
/* create an event box containing one pixmaps */
eventbox = gtk_event_box_new();
gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK);
gtk_signal_connect(GTK_OBJECT(eventbox), "state_changed",
(GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
(gpointer)NULL);
gtk_signal_connect(GTK_OBJECT(eventbox), "realize",
(GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
(gpointer)NULL);
gtk_signal_connect(GTK_OBJECT(eventbox), "button_press_event",
(GtkSignalFunc)gtk_tree_item_subtree_button_click,
(gpointer)NULL);
gtk_object_set_user_data(GTK_OBJECT(eventbox), tree_item);
tree_item->pixmaps_box = eventbox;
/* create pixmap for button '+' */
pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
if (!tree_item->expanded)
gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
gtk_widget_show (pixmapwid);
tree_item->plus_pix_widget = pixmapwid;
gtk_widget_ref (tree_item->plus_pix_widget);
gtk_object_sink (GTK_OBJECT (tree_item->plus_pix_widget));
/* create pixmap for button '-' */
pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
if (tree_item->expanded)
gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
gtk_widget_show (pixmapwid);
tree_item->minus_pix_widget = pixmapwid;
gtk_widget_ref (tree_item->minus_pix_widget);
gtk_object_sink (GTK_OBJECT (tree_item->minus_pix_widget));
gtk_widget_set_parent (eventbox, GTK_WIDGET (tree_item));
}
GtkWidget*
gtk_tree_item_new ()
{
GtkWidget *tree_item;
tree_item = GTK_WIDGET (gtk_type_new (gtk_tree_item_get_type ()));
return tree_item;
}
GtkWidget*
gtk_tree_item_new_with_label (gchar *label)
{
GtkWidget *tree_item;
GtkWidget *label_widget;
tree_item = gtk_tree_item_new ();
label_widget = gtk_label_new (label);
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (tree_item), label_widget);
gtk_widget_show (label_widget);
return tree_item;
}
void
gtk_tree_item_set_subtree (GtkTreeItem *tree_item,
GtkWidget *subtree)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
g_return_if_fail (subtree != NULL);
g_return_if_fail (GTK_IS_TREE (subtree));
if(tree_item->subtree) {
g_warning("there is already a subtree for this tree item\n");
return;
}
tree_item->subtree = subtree;
GTK_TREE(subtree)->tree_owner = GTK_WIDGET(tree_item);
/* show subtree button */
if (tree_item->pixmaps_box)
gtk_widget_show(tree_item->pixmaps_box);
/* set parent widget */
gtk_widget_set_parent(subtree, GTK_WIDGET(tree_item)->parent);
if(GTK_WIDGET_VISIBLE(GTK_WIDGET(tree_item)))
{
if(GTK_WIDGET_REALIZED (GTK_WIDGET(tree_item)) &&
!GTK_WIDGET_REALIZED (GTK_WIDGET(subtree)))
gtk_widget_realize (GTK_WIDGET(subtree));
if(GTK_WIDGET_MAPPED (GTK_WIDGET(tree_item)) &&
!GTK_WIDGET_MAPPED (GTK_WIDGET(subtree)))
gtk_widget_map (GTK_WIDGET(subtree));
}
if(tree_item->expanded)
gtk_widget_show(subtree);
else
gtk_widget_hide(subtree);
if (GTK_WIDGET_VISIBLE (tree_item) && GTK_WIDGET_VISIBLE (tree_item))
gtk_widget_queue_resize (GTK_WIDGET(tree_item));
}
void
gtk_tree_item_select (GtkTreeItem *tree_item)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
gtk_item_select (GTK_ITEM (tree_item));
}
void
gtk_tree_item_deselect (GtkTreeItem *tree_item)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
gtk_item_deselect (GTK_ITEM (tree_item));
}
void
gtk_tree_item_expand (GtkTreeItem *tree_item)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[EXPAND_TREE], NULL);
}
void
gtk_tree_item_collapse (GtkTreeItem *tree_item)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[COLLAPSE_TREE], NULL);
}
static void
gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item)
{
GList *tmp_list;
GdkColormap *colormap;
GtkTreePixmaps *pixmap_node = NULL;
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
if (tree_item->pixmaps)
return;
colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_item));
tmp_list = pixmaps;
while (tmp_list)
{
pixmap_node = (GtkTreePixmaps *)tmp_list->data;
if (pixmap_node->colormap == colormap)
break;
tmp_list = tmp_list->next;
}
if (tmp_list)
{
pixmap_node->refcount++;
tree_item->pixmaps = tmp_list;
}
else
{
pixmap_node = g_new (GtkTreePixmaps, 1);
pixmap_node->colormap = colormap;
gdk_colormap_ref (colormap);
pixmap_node->refcount = 1;
/* create pixmaps for plus icon */
pixmap_node->pixmap_plus =
gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
&pixmap_node->mask_plus,
NULL,
tree_plus);
/* create pixmaps for minus icon */
pixmap_node->pixmap_minus =
gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
&pixmap_node->mask_minus,
NULL,
tree_minus);
tree_item->pixmaps = pixmaps = g_list_prepend (pixmaps, pixmap_node);
}
gtk_pixmap_set (GTK_PIXMAP (tree_item->plus_pix_widget),
pixmap_node->pixmap_plus, pixmap_node->mask_plus);
gtk_pixmap_set (GTK_PIXMAP (tree_item->minus_pix_widget),
pixmap_node->pixmap_minus, pixmap_node->mask_minus);
}
static void
gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item)
{
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
if (tree_item->pixmaps)
{
GtkTreePixmaps *pixmap_node = (GtkTreePixmaps *)tree_item->pixmaps->data;
g_assert (pixmap_node->refcount > 0);
if (--pixmap_node->refcount == 0)
{
gdk_colormap_unref (pixmap_node->colormap);
gdk_pixmap_unref (pixmap_node->pixmap_plus);
gdk_bitmap_unref (pixmap_node->mask_plus);
gdk_pixmap_unref (pixmap_node->pixmap_minus);
gdk_bitmap_unref (pixmap_node->mask_minus);
pixmaps = g_list_remove_link (pixmaps, tree_item->pixmaps);
g_list_free_1 (tree_item->pixmaps);
g_free (pixmap_node);
}
tree_item->pixmaps = NULL;
}
}
static void
gtk_tree_item_realize (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
if (GTK_WIDGET_CLASS (parent_class)->realize)
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
gdk_window_set_background (widget->window,
&widget->style->base[GTK_STATE_NORMAL]);
gtk_tree_item_add_pixmaps (GTK_TREE_ITEM (widget));
}
static void
gtk_tree_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkBin *bin;
GtkTreeItem* item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
g_return_if_fail (requisition != NULL);
bin = GTK_BIN (widget);
item = GTK_TREE_ITEM(widget);
requisition->width = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->xthickness) * 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;
gtk_widget_size_request (item->pixmaps_box,
&item->pixmaps_box->requisition);
requisition->width += item->pixmaps_box->requisition.width + DEFAULT_DELTA +
GTK_TREE(widget->parent)->current_indent;
requisition->height += MAX(bin->child->requisition.height,
item->pixmaps_box->requisition.height);
}
}
static void
gtk_tree_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBin *bin;
GtkTreeItem* item;
GtkAllocation child_allocation;
guint border_width;
int temp;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
bin = GTK_BIN (widget);
item = GTK_TREE_ITEM(widget);
if (bin->child)
{
border_width = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->xthickness);
child_allocation.x = border_width + GTK_TREE(widget->parent)->current_indent;
child_allocation.y = GTK_CONTAINER (widget)->border_width;
child_allocation.width = item->pixmaps_box->requisition.width;
child_allocation.height = item->pixmaps_box->requisition.height;
temp = allocation->height - child_allocation.height;
child_allocation.y += ( temp / 2 ) + ( temp % 2 );
gtk_widget_size_allocate (item->pixmaps_box, &child_allocation);
child_allocation.y = GTK_CONTAINER (widget)->border_width;
child_allocation.height = MAX (1, allocation->height - child_allocation.y * 2);
child_allocation.x += item->pixmaps_box->requisition.width+DEFAULT_DELTA;
child_allocation.width =
MAX (1, allocation->width - (child_allocation.x + border_width));
gtk_widget_size_allocate (bin->child, &child_allocation);
}
}
static void
gtk_tree_item_draw_lines(GtkWidget *widget)
{
GtkTreeItem* item;
GtkTree* tree;
guint lx1, ly1, lx2, ly2;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
item = GTK_TREE_ITEM(widget);
tree = GTK_TREE(widget->parent);
/* draw vertical line */
lx1 = item->pixmaps_box->allocation.width;
lx1 = lx2 = ( lx1 / 2 ) + ( lx1 % 2 ) +
GTK_CONTAINER(widget)->border_width + 1 + tree->current_indent;
ly1 = 0;
ly2 = widget->allocation.height;
if(g_list_last(tree->children)->data == (gpointer)widget)
ly2 = (ly2 / 2) + (ly2 % 2);
if(tree != tree->root_tree)
gdk_draw_line(widget->window, widget->style->black_gc,
lx1, ly1, lx2, ly2);
/* draw vertical line for subtree connecting */
if(g_list_last(tree->children)->data != (gpointer)widget)
ly2 = (ly2 / 2) + (ly2 % 2);
lx2 += DEFAULT_DELTA;
if(item->subtree && item->expanded)
gdk_draw_line(widget->window, widget->style->black_gc,
lx2, ly2, lx2, widget->allocation.height);
/* draw horizontal line */
ly1 = ly2;
lx2 += 2;
gdk_draw_line(widget->window, widget->style->black_gc,
lx1, ly1, lx2, ly2);
lx2 -= DEFAULT_DELTA+2;
ly1 = 0;
ly2 = widget->allocation.height;
if(tree != tree->root_tree)
{
item = GTK_TREE_ITEM(tree->tree_owner);
tree = GTK_TREE(GTK_WIDGET(tree)->parent);
while(tree != tree->root_tree) {
lx1 = lx2 -= tree->indent_value;
if(g_list_last(tree->children)->data != (gpointer)item)
gdk_draw_line(widget->window, widget->style->black_gc,
lx1, ly1, lx2, ly2);
item = GTK_TREE_ITEM(tree->tree_owner);
tree = GTK_TREE(GTK_WIDGET(tree)->parent);
}
}
}
static void
gtk_tree_item_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkBin *bin;
GdkRectangle child_area, item_area;
GtkTreeItem* tree_item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
bin = GTK_BIN (widget);
tree_item = GTK_TREE_ITEM(widget);
/* draw left size of tree item */
item_area.x = 0; item_area.y = 0;
item_area.width = tree_item->pixmaps_box->allocation.width+DEFAULT_DELTA +
(GTK_TREE(widget->parent)->current_indent + 2);
item_area.height = widget->allocation.height;
if(gdk_rectangle_intersect(&item_area, area, &child_area)) {
if (!GTK_WIDGET_IS_SENSITIVE (widget))
gtk_style_set_background (widget->style, widget->window,
GTK_STATE_INSENSITIVE);
else if(GTK_TREE(widget->parent)->view_mode == GTK_TREE_VIEW_LINE &&
widget->state == GTK_STATE_SELECTED)
gtk_style_set_background (widget->style, widget->window, widget->state);
else
gdk_window_set_background (widget->window,
&widget->style->base[GTK_STATE_NORMAL]);
gdk_window_clear_area (widget->window,
child_area.x, child_area.y,
child_area.width, child_area.height);
/* gtk_tree_item_draw_lines(widget); */
if (tree_item->pixmaps_box &&
GTK_WIDGET_VISIBLE(tree_item->pixmaps_box) &&
gtk_widget_intersect (tree_item->pixmaps_box, area, &child_area))
gtk_widget_draw (tree_item->pixmaps_box, &child_area);
}
/* draw right side */
if(gtk_widget_intersect (bin->child, area, &child_area)) {
if (!GTK_WIDGET_IS_SENSITIVE (widget))
gtk_style_set_background (widget->style, widget->window,
GTK_STATE_INSENSITIVE);
else if (widget->state == GTK_STATE_NORMAL)
gdk_window_set_background(widget->window, &widget->style->base[GTK_STATE_NORMAL]);
else
gtk_style_set_background (widget->style, widget->window, widget->state);
gdk_window_clear_area (widget->window, child_area.x, child_area.y,
child_area.width+1, child_area.height);
if (bin->child &&
GTK_WIDGET_VISIBLE(bin->child) &&
gtk_widget_intersect (bin->child, area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
gtk_widget_draw_focus (widget);
}
}
static void
gtk_tree_item_draw_focus (GtkWidget *widget)
{
GdkGC *gc;
int dx;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
if (GTK_WIDGET_DRAWABLE (widget))
{
if (GTK_WIDGET_HAS_FOCUS (widget))
gc = widget->style->black_gc;
else if (!GTK_WIDGET_IS_SENSITIVE (widget))
gc = widget->style->bg_gc[GTK_STATE_INSENSITIVE];
else if (widget->state == GTK_STATE_NORMAL)
gc = widget->style->base_gc[GTK_STATE_NORMAL];
else
gc = widget->style->bg_gc[widget->state];
dx = 0;
if(GTK_TREE(widget->parent)->view_mode == GTK_TREE_VIEW_ITEM)
dx = GTK_TREE_ITEM(widget)->pixmaps_box->allocation.width + DEFAULT_DELTA +
GTK_TREE(widget->parent)->current_indent+1;
gdk_draw_rectangle (widget->window, gc, FALSE, dx, 0,
widget->allocation.width - 1 - dx,
widget->allocation.height - 1);
if (GTK_TREE (widget->parent)->view_line &&
(!GTK_IS_ROOT_TREE (widget->parent) ||
(GTK_IS_ROOT_TREE (widget->parent) && GTK_TREE_ITEM(widget)->subtree)))
{
gtk_tree_item_draw_lines(widget);
}
}
}
static gint
gtk_tree_item_button_press (GtkWidget *widget,
GdkEventButton *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (event->type == GDK_BUTTON_PRESS
&& GTK_WIDGET_IS_SENSITIVE(widget)
&& !GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
return FALSE;
}
static gint
gtk_tree_item_expose (GtkWidget *widget,
GdkEventExpose *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
gtk_tree_item_draw(widget, &event->area);
return FALSE;
}
static gint
gtk_tree_item_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
return FALSE;
}
static gint
gtk_tree_item_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
return FALSE;
}
static void
gtk_real_tree_item_select (GtkItem *item)
{
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (item));
if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED
|| !GTK_WIDGET_IS_SENSITIVE(item))
return;
if(GTK_TREE(GTK_WIDGET(item)->parent)->view_mode == GTK_TREE_VIEW_LINE)
gtk_widget_set_state (GTK_TREE_ITEM (item)->pixmaps_box, GTK_STATE_SELECTED);
gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
gtk_widget_queue_draw (GTK_WIDGET (item));
}
static void
gtk_real_tree_item_deselect (GtkItem *item)
{
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (item));
if (GTK_WIDGET (item)->state == GTK_STATE_NORMAL)
return;
if(GTK_WIDGET_MAPPED(GTK_WIDGET (item)))
{
gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
if(GTK_TREE(GTK_WIDGET(item)->parent)->view_mode == GTK_TREE_VIEW_LINE)
gtk_widget_set_state (GTK_TREE_ITEM (item)->pixmaps_box, GTK_STATE_NORMAL);
gtk_widget_queue_draw (GTK_WIDGET (item));
}
}
static void
gtk_real_tree_item_toggle (GtkItem *item)
{
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (item));
if(!GTK_WIDGET_IS_SENSITIVE(item))
return;
if (GTK_WIDGET (item)->parent && GTK_IS_TREE (GTK_WIDGET (item)->parent))
gtk_tree_select_child (GTK_TREE (GTK_WIDGET (item)->parent),
GTK_WIDGET (item));
else
{
/* Should we really bother with this bit? A listitem not in a list?
* -Johannes Keukelaar
* yes, always be on the save side!
* -timj
*/
if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED)
gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
else
gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
gtk_widget_queue_draw (GTK_WIDGET (item));
}
}
static void
gtk_real_tree_item_expand (GtkTreeItem *tree_item)
{
GtkTree* tree;
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
if (tree_item->subtree && !tree_item->expanded)
{
tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
/* hide subtree widget */
gtk_widget_show (tree_item->subtree);
/* hide button '+' and show button '-' */
if (tree_item->pixmaps_box)
{
gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
tree_item->plus_pix_widget);
gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
tree_item->minus_pix_widget);
}
if (tree->root_tree)
gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
tree_item->expanded = TRUE;
}
}
static void
gtk_real_tree_item_collapse (GtkTreeItem *tree_item)
{
GtkTree* tree;
g_return_if_fail (tree_item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
if (tree_item->subtree && tree_item->expanded)
{
tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
/* hide subtree widget */
gtk_widget_hide (tree_item->subtree);
/* hide button '-' and show button '+' */
if (tree_item->pixmaps_box)
{
gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
tree_item->minus_pix_widget);
gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
tree_item->plus_pix_widget);
}
if (tree->root_tree)
gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
tree_item->expanded = FALSE;
}
}
static void
gtk_tree_item_destroy (GtkObject *object)
{
GtkTreeItem* item;
GtkWidget* child;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (object));
#ifdef TREE_DEBUG
g_print("+ gtk_tree_item_destroy [object %#x]\n", (int)object);
#endif /* TREE_DEBUG */
item = GTK_TREE_ITEM(object);
/* free sub tree if it exist */
child = item->subtree;
if (child)
{
gtk_widget_ref (child);
gtk_widget_unparent (child);
gtk_widget_destroy (child);
gtk_widget_unref (child);
item->subtree = NULL;
}
/* free pixmaps box */
child = item->pixmaps_box;
if (child)
{
gtk_widget_ref (child);
gtk_widget_unparent (child);
gtk_widget_destroy (child);
gtk_widget_unref (child);
item->pixmaps_box = NULL;
}
/* destroy plus pixmap */
if (item->plus_pix_widget)
{
gtk_widget_destroy (item->plus_pix_widget);
gtk_widget_unref (item->plus_pix_widget);
item->plus_pix_widget = NULL;
}
/* destroy minus pixmap */
if (item->minus_pix_widget)
{
gtk_widget_destroy (item->minus_pix_widget);
gtk_widget_unref (item->minus_pix_widget);
item->minus_pix_widget = NULL;
}
/* By removing the pixmaps here, and not in unrealize, we depend on
* the fact that a widget can never change colormap or visual.
*/
gtk_tree_item_remove_pixmaps (item);
GTK_OBJECT_CLASS (parent_class)->destroy (object);
#ifdef TREE_DEBUG
g_print("- gtk_tree_item_destroy\n");
#endif /* TREE_DEBUG */
}
void
gtk_tree_item_remove_subtree (GtkTreeItem* item)
{
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM(item));
g_return_if_fail (item->subtree != NULL);
if (GTK_TREE (item->subtree)->children)
{
/* The following call will remove the children and call
* gtk_tree_item_remove_subtree() again. So we are done.
*/
gtk_tree_remove_items (GTK_TREE (item->subtree),
GTK_TREE (item->subtree)->children);
return;
}
if (GTK_WIDGET_MAPPED (item->subtree))
gtk_widget_unmap (item->subtree);
gtk_widget_unparent (item->subtree);
if (item->pixmaps_box)
gtk_widget_hide (item->pixmaps_box);
item->subtree = NULL;
if (item->expanded)
{
item->expanded = FALSE;
if (item->pixmaps_box)
{
gtk_container_remove (GTK_CONTAINER (item->pixmaps_box),
item->minus_pix_widget);
gtk_container_add (GTK_CONTAINER (item->pixmaps_box),
item->plus_pix_widget);
}
}
}
static void
gtk_tree_item_map (GtkWidget *widget)
{
GtkBin *bin;
GtkTreeItem* item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
bin = GTK_BIN (widget);
item = GTK_TREE_ITEM(widget);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_show (widget->window);
else
gtk_widget_queue_draw (widget);
if(item->pixmaps_box &&
GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
!GTK_WIDGET_MAPPED (item->pixmaps_box))
gtk_widget_map (item->pixmaps_box);
if (bin->child &&
GTK_WIDGET_VISIBLE (bin->child) &&
!GTK_WIDGET_MAPPED (bin->child))
gtk_widget_map (bin->child);
}
static void
gtk_tree_item_unmap (GtkWidget *widget)
{
GtkBin *bin;
GtkTreeItem* item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_ITEM (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
bin = GTK_BIN (widget);
item = GTK_TREE_ITEM(widget);
if (GTK_WIDGET_NO_WINDOW (widget))
gdk_window_clear_area (widget->window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
else
gdk_window_hide (widget->window);
if(item->pixmaps_box &&
GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
GTK_WIDGET_MAPPED (item->pixmaps_box))
gtk_widget_unmap (bin->child);
if (bin->child &&
GTK_WIDGET_VISIBLE (bin->child) &&
GTK_WIDGET_MAPPED (bin->child))
gtk_widget_unmap (bin->child);
}
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