gtk2/gtk/gtktreednd.c

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adapt to handle PangoColor 2001-01-26 Havoc Pennington <hp@redhat.com> * gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor * gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT (gtk_tree_view_tree_to_widget_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT * configure.in (included_loaders): for me, --with-included-loaders generates the error "the specified loader yes does not exist", i.e. the arg defaults to "yes", so change test for value "" to test for value "yes", and include all loaders in that case. * gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function * gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly handle TREE_VIEW_VERTICAL_SEPARATOR (gtk_tree_view_bin_expose): fix to consider the row offset as pointing halfway into vertical separator. (gtk_tree_view_draw_node_focus_rect): ditto * gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add --gtk-debug=updates, which causes gdk_window_set_debug_updates (TRUE) to be called. * gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a debug mode where the invalid region is colored in on invalidate, so you can see the flicker and know whether your redraw code is doing a good job. * gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in tree window coordinates (clip rect is in tree window coords) * gtk/Makefile.am: add gtktreednd.[hc] * gtk/gtkliststore.c: implement gtktreednd interfaces. * gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support drag-and-drop data operations on a model (so we can set up tree drag-and-drop automatically) * gtk/testgtk.c: Add a window to change sensitivity in the GtkLabel test; add a way to change the entry frame in GtkEntry test * gtk/gtkentry.c (gtk_entry_set_has_frame): (gtk_entry_get_has_frame): new functions to remove the frame around an entry (gtk_entry_size_request): shrink requisition if no frame (gtk_entry_draw_focus): don't draw frame if no frame * gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for checks inside a cell renderer (gtk_default_draw_option): ditto for options * gtk/gtktreeviewcolumn.c (update_button_contents): add/remove children from the alignment, not the button (gtk_tree_view_column_init): ref/sink the column, to emulate GObject refcounting. * gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink * gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render): Use theme functions to draw the toggles * gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors * gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and GdkPangoAttrEmbossed to use in rendering insensitive text * gdk/gdkpango.c (gdk_draw_layout_line): render new properties * gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity using new GDK features
2001-01-26 21:12:05 +00:00
/* gtktreednd.c
* Copyright (C) 2001 Red Hat, Inc.
*
* 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 <string.h>
#include "gtktreednd.h"
GType
gtk_tree_drag_source_get_type (void)
{
static GType our_type = 0;
if (!our_type)
{
static const GTypeInfo our_info =
{
sizeof (GtkTreeDragSourceIface), /* class_size */
NULL, /* base_init */
NULL, /* base_finalize */
NULL,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
our_type = g_type_register_static (G_TYPE_INTERFACE, "GtkTreeDragSource", &our_info, 0);
}
return our_type;
}
GType
gtk_tree_drag_dest_get_type (void)
{
static GType our_type = 0;
if (!our_type)
{
static const GTypeInfo our_info =
{
sizeof (GtkTreeDragDestIface), /* class_size */
NULL, /* base_init */
NULL, /* base_finalize */
NULL,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
our_type = g_type_register_static (G_TYPE_INTERFACE, "GtkTreeDragDest", &our_info, 0);
}
return our_type;
}
/**
* gtk_tree_drag_source_drag_data_delete:
* @drag_source: a #GtkTreeDragSource
* @path: row that was being dragged
*
* Asks the #GtkTreeDragSource to delete the row at @path, because
* it was moved somewhere else via drag-and-drop. Returns %FALSE
* if the deletion fails because @path no longer exists, or for
* some model-specific reason. Should robustly handle a @path no
* longer found in the model!
*
* Return value: %TRUE if the row was successfully deleted
**/
gboolean
gtk_tree_drag_source_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GtkTreeDragSourceIface *iface = GTK_TREE_DRAG_SOURCE_GET_IFACE (drag_source);
g_return_val_if_fail (iface->drag_data_delete != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
return (* iface->drag_data_delete) (drag_source, path);
}
/**
* gtk_tree_drag_source_drag_data_get:
* @drag_source: a #GtkTreeDragSource
* @path: row that was dragged
* @selection_data: a #GtkSelectionData to fill with data from the dragged row
*
* Asks the #GtkTreeDragSource to fill in @selection_data with a
* representation of the row at @path. @selection_data->target gives
* the required type of the data. Should robustly handle a @path no
* longer found in the model!
*
* Return value: %TRUE if data of the required type was provided
**/
gboolean
gtk_tree_drag_source_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection_data)
{
GtkTreeDragSourceIface *iface = GTK_TREE_DRAG_SOURCE_GET_IFACE (drag_source);
g_return_val_if_fail (iface->drag_data_get != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (selection_data != NULL, FALSE);
return (* iface->drag_data_get) (drag_source, path, selection_data);
}
/**
* gtk_tree_drag_dest_drag_data_received:
* @drag_dest: a #GtkTreeDragDest
* @dest: row to drop in front of
* @selection_data: data to drop
*
* Asks the #GtkTreeDragDest to insert a row before the path @dest,
* deriving the contents of the row from @selection_data. If @dest is
* outside the tree so that inserting before it is impossible, %FALSE
* will be returned. Also, %FALSE may be returned if the new row is
* not created for some model-specific reason. Should robustly handle
* a @dest no longer found in the model!
*
* Return value: whether a new row was created before position @dest
**/
gboolean
gtk_tree_drag_dest_drag_data_received (GtkTreeDragDest *drag_dest,
GtkTreePath *dest,
GtkSelectionData *selection_data)
{
GtkTreeDragDestIface *iface = GTK_TREE_DRAG_DEST_GET_IFACE (drag_dest);
g_return_val_if_fail (iface->drag_data_received != NULL, FALSE);
g_return_val_if_fail (dest != NULL, FALSE);
g_return_val_if_fail (selection_data != NULL, FALSE);
return (* iface->drag_data_received) (drag_dest, dest, selection_data);
}
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
/**
* gtk_tree_drag_dest_drop_possible:
* @drag_dest: a #GtkTreeDragDest
* @src_model: #GtkTreeModel being dragged from
* @src_path: row being dragged
* @dest_path: destination row
*
* Determines whether a drop is possible before the given @dest_path,
* at the same depth as @dest_path. i.e., can we drop @src_model such
* that it now resides at @dest_path. @dest_path does not have to
* exist; the return value will almost certainly be %FALSE if the
* parent of @dest_path doesn't exist, though.
*
* Return value: %TRUE if a drop is possible before @dest_path
**/
gboolean
gtk_tree_drag_dest_row_drop_possible (GtkTreeDragDest *drag_dest,
GtkTreeModel *src_model,
GtkTreePath *src_path,
GtkTreePath *dest_path)
{
GtkTreeDragDestIface *iface = GTK_TREE_DRAG_DEST_GET_IFACE (drag_dest);
g_return_val_if_fail (iface->row_drop_possible != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_MODEL (src_model), FALSE);
g_return_val_if_fail (src_path != NULL, FALSE);
g_return_val_if_fail (dest_path != NULL, FALSE);
return (* iface->row_drop_possible) (drag_dest, src_model, src_path, dest_path);
}
adapt to handle PangoColor 2001-01-26 Havoc Pennington <hp@redhat.com> * gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor * gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT (gtk_tree_view_tree_to_widget_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT * configure.in (included_loaders): for me, --with-included-loaders generates the error "the specified loader yes does not exist", i.e. the arg defaults to "yes", so change test for value "" to test for value "yes", and include all loaders in that case. * gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function * gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly handle TREE_VIEW_VERTICAL_SEPARATOR (gtk_tree_view_bin_expose): fix to consider the row offset as pointing halfway into vertical separator. (gtk_tree_view_draw_node_focus_rect): ditto * gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add --gtk-debug=updates, which causes gdk_window_set_debug_updates (TRUE) to be called. * gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a debug mode where the invalid region is colored in on invalidate, so you can see the flicker and know whether your redraw code is doing a good job. * gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in tree window coordinates (clip rect is in tree window coords) * gtk/Makefile.am: add gtktreednd.[hc] * gtk/gtkliststore.c: implement gtktreednd interfaces. * gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support drag-and-drop data operations on a model (so we can set up tree drag-and-drop automatically) * gtk/testgtk.c: Add a window to change sensitivity in the GtkLabel test; add a way to change the entry frame in GtkEntry test * gtk/gtkentry.c (gtk_entry_set_has_frame): (gtk_entry_get_has_frame): new functions to remove the frame around an entry (gtk_entry_size_request): shrink requisition if no frame (gtk_entry_draw_focus): don't draw frame if no frame * gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for checks inside a cell renderer (gtk_default_draw_option): ditto for options * gtk/gtktreeviewcolumn.c (update_button_contents): add/remove children from the alignment, not the button (gtk_tree_view_column_init): ref/sink the column, to emulate GObject refcounting. * gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink * gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render): Use theme functions to draw the toggles * gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors * gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and GdkPangoAttrEmbossed to use in rendering insensitive text * gdk/gdkpango.c (gdk_draw_layout_line): render new properties * gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity using new GDK features
2001-01-26 21:12:05 +00:00
typedef struct _TreeRowData TreeRowData;
struct _TreeRowData
{
GtkTreeModel *model;
gchar path[4];
};
/**
* gtk_selection_data_set_tree_row:
* @selection_data: some #GtkSelectionData
* @tree_model: a #GtkTreeModel
* @path: a row in @tree_model
*
* Sets selection data of target type %GTK_TREE_MODEL_ROW. Normally used
* in a drag_data_get handler.
*
* Return value: %TRUE if the #GtkSelectionData had the proper target type to allow us to set a tree row
**/
gboolean
gtk_selection_data_set_tree_row (GtkSelectionData *selection_data,
GtkTreeModel *tree_model,
GtkTreePath *path)
{
TreeRowData *trd;
gchar *path_str;
gint len;
gint struct_size;
g_return_val_if_fail (selection_data != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (selection_data->target != gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE))
return FALSE;
path_str = gtk_tree_path_to_string (path);
len = strlen (path_str);
/* the old allocate-end-of-struct-to-hold-string trick */
struct_size = sizeof (TreeRowData) + len + 1 -
(sizeof (TreeRowData) - G_STRUCT_OFFSET (TreeRowData, path));
trd = g_malloc (struct_size);
strcpy (trd->path, path_str);
trd->model = tree_model;
gtk_selection_data_set (selection_data,
gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE),
8, /* bytes */
(void*)trd,
struct_size);
g_free (trd);
return TRUE;
}
/**
* gtk_selection_data_get_tree_row:
* @selection_data: a #GtkSelectionData
* @tree_model: a #GtkTreeModel
* @path: row in @tree_model
*
* Obtains a @tree_model and @path from selection data of target type
* %GTK_TREE_MODEL_ROW. Normally called from a drag_data_received handler.
* This function can only be used if @selection_data originates from the same
* process that's calling this function, because a pointer to the tree model
* is being passed around. If you aren't in the same process, then you'll
* get memory corruption. In the #GtkTreeDragDest drag_data_received handler,
* you can assume that selection data of type %GTK_TREE_MODEL_ROW is
* in from the current process. The returned path must be freed with
* gtk_tree_path_free().
*
* Return value: %TRUE if @selection_data had target type %GTK_TREE_MODEL_ROW and
* is otherwise valid
**/
gboolean
gtk_selection_data_get_tree_row (GtkSelectionData *selection_data,
GtkTreeModel **tree_model,
GtkTreePath **path)
{
TreeRowData *trd;
g_return_val_if_fail (selection_data != NULL, FALSE);
if (tree_model)
*tree_model = NULL;
if (path)
*path = NULL;
if (selection_data->target != gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE))
return FALSE;
trd = (void*) selection_data->data;
if (tree_model)
*tree_model = trd->model;
if (path)
*path = gtk_tree_path_new_from_string (trd->path);
return TRUE;
}