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gtk2/gtk/gtktreeprivate.h
Jonathan Blandford 6e70564088 New function to let user control where columns are dragged. 
Wed May  9 15:27:22 2001  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreeview.c (gtk_tree_view_set_column_drag_function): New
	function to let user control where columns are dragged.

	* gtk/gtktreeview.c (gtk_tree_view_key_press): Cancel drags if
	Escape is pressed.
2001-05-09 22:23:12 +00:00

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/* gtktreeprivate.h
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* 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.
*/
#ifndef __GTK_TREE_PRIVATE_H__
#define __GTK_TREE_PRIVATE_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <gtk/gtktreeview.h>
#include <gtk/gtktreeselection.h>
#include <gtk/gtkrbtree.h>
#define TREE_VIEW_DRAG_WIDTH 6
typedef enum
{
GTK_TREE_VIEW_IS_LIST = 1 << 0,
GTK_TREE_VIEW_SHOW_EXPANDERS = 1 << 1,
GTK_TREE_VIEW_IN_COLUMN_RESIZE = 1 << 2,
GTK_TREE_VIEW_ARROW_PRELIT = 1 << 3,
GTK_TREE_VIEW_HEADERS_VISIBLE = 1 << 4,
GTK_TREE_VIEW_DRAW_KEYFOCUS = 1 << 5,
GTK_TREE_VIEW_MODEL_SETUP = 1 << 6,
GTK_TREE_VIEW_IN_COLUMN_DRAG = 1 << 7,
} GtkTreeViewFlags;
enum
{
DRAG_COLUMN_WINDOW_STATE_UNSET = 0,
DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1,
DRAG_COLUMN_WINDOW_STATE_ARROW = 2,
DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3,
DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4,
};
#define GTK_TREE_VIEW_SET_FLAG(tree_view, flag) G_STMT_START{ (tree_view->priv->flags|=flag); }G_STMT_END
#define GTK_TREE_VIEW_UNSET_FLAG(tree_view, flag) G_STMT_START{ (tree_view->priv->flags&=~(flag)); }G_STMT_END
#define GTK_TREE_VIEW_FLAG_SET(tree_view, flag) ((tree_view->priv->flags&flag)==flag)
#define TREE_VIEW_HEADER_HEIGHT(tree_view) (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE)?tree_view->priv->header_height:0)
#define TREE_VIEW_COLUMN_WIDTH(column) (CLAMP (column->width, (column->min_width!=-1)?column->min_width:column->width, (column->max_width!=-1)?column->max_width:column->width))
#define TREE_VIEW_DRAW_EXPANDERS(tree_view) (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST)&&GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
/* This lovely little value is used to determine how far away from the title bar
* you can move the mouse and still have a column drag work.
*/
#define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*TREE_VIEW_HEADER_HEIGHT(tree_view))
typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder;
struct _GtkTreeViewColumnReorder
{
gint left_align;
gint right_align;
GtkTreeViewColumn *left_column;
GtkTreeViewColumn *right_column;
};
struct _GtkTreeViewPrivate
{
GtkTreeModel *model;
guint flags;
/* tree information */
GtkRBTree *tree;
gint tab_offset;
GtkRBNode *button_pressed_node;
GtkRBTree *button_pressed_tree;
GList *children;
gint width;
gint height;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
GdkWindow *bin_window;
GdkWindow *header_window;
GdkWindow *drag_window;
GdkWindow *drag_highlight_window;
GtkTreeViewColumn *drag_column;
gint drag_column_x;
gint expander_column;
/* Focus code */
GtkTreeViewColumn *focus_column;
GtkTreeViewColumn *scroll_column;
/* Selection stuff */
GtkTreeRowReference *anchor;
GtkTreeRowReference *cursor;
/* Column Resizing */
GdkCursor *cursor_drag;
GdkGC *xor_gc;
gint drag_pos;
gint x_drag;
/* Prelight information */
GtkRBNode *prelight_node;
GtkRBTree *prelight_tree;
/* Selection information */
GtkTreeSelection *selection;
/* Header information */
gint n_columns;
GList *columns;
gint header_height;
GtkTreeViewColumnDropFunc *column_drop_func;
gpointer column_drop_func_data;
GtkDestroyNotify column_drop_func_data_destroy;
GList *column_drag_info;
GtkTreeViewColumnReorder *cur_reorder;
/* Scroll timeout (e.g. during dnd) */
guint scroll_timeout;
/* Row drag-and-drop */
GtkTreeRowReference *drag_dest_row;
GtkTreeViewDropPosition drag_dest_pos;
guint open_dest_timeout;
gint pressed_button;
gint press_start_x;
gint press_start_y;
/* Scroll-to functionality when unrealized */
GtkTreePath *scroll_to_path;
GtkTreeViewColumn *scroll_to_column;
gfloat scroll_to_row_align;
gfloat scroll_to_col_align;
guint header_has_focus : 1;
guint drag_column_window_state : 3;
/* hint to display rows in alternating colors */
guint has_rules : 1;
};
#ifdef __GNUC__
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
__PRETTY_FUNCTION__, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
__PRETTY_FUNCTION__, \
#expr); \
return; \
}; }G_STMT_END
#else
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion '%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return; \
}; }G_STMT_END
#endif
/* functions that shouldn't be exported */
void _gtk_tree_selection_internal_select_node (GtkTreeSelection *selection,
GtkRBNode *node,
GtkRBTree *tree,
GtkTreePath *path,
GdkModifierType state);
gboolean _gtk_tree_view_find_node (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree **tree,
GtkRBNode **node);
GtkTreePath *_gtk_tree_view_find_path (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
void _gtk_tree_view_update_size (GtkTreeView *tree_view);
void _gtk_tree_view_column_create_button (GtkTreeViewColumn *column);
void _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column);
void _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column);
void _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
GtkTreeView *tree_view);
void _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column);
void _gtk_tree_view_column_start_drag (GtkTreeView *tree_view,
GtkTreeViewColumn *column);
GtkTreeSelection* _gtk_tree_selection_new (void);
GtkTreeSelection* _gtk_tree_selection_new_with_tree_view (GtkTreeView *tree_view);
void _gtk_tree_selection_set_tree_view (GtkTreeSelection *selection,
GtkTreeView *tree_view);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTK_TREE_PRIVATE_H__ */
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