forked from AuroraMiddleware/gtk
3fe0fb4ed9
This patch adds the GtkScrollablePolicy type property to GtkScrollable and implements it in all subclasses. GtkScrolledWindow observes this property to make a good guess about when to show/hide scrollbars for height-for-width content. Most scrollable children do not do height-for-width *yet* but most certainly will (toolpalette, treeview, iconview, textview widgets all TODO), for scrollable widgets that do have a minimum and natural size, it's important for them to observe the state of this property in order to properly drive the scroll adjustments according to the desired GtkScrollablePolicy. This patch makes GtkViewport do this. Patch also adds tests/testscrolledwindow.c to display the effects of this property.
479 lines
17 KiB
C
479 lines
17 KiB
C
/* gtktreeprivate.h
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* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
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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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#ifndef __GTK_TREE_PRIVATE_H__
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#define __GTK_TREE_PRIVATE_H__
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G_BEGIN_DECLS
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#include <gtk/gtktreeview.h>
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#include <gtk/gtktreeselection.h>
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#include <gtk/gtkrbtree.h>
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#define TREE_VIEW_DRAG_WIDTH 6
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typedef enum
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{
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GTK_TREE_VIEW_IS_LIST = 1 << 0,
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GTK_TREE_VIEW_SHOW_EXPANDERS = 1 << 1,
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GTK_TREE_VIEW_IN_COLUMN_RESIZE = 1 << 2,
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GTK_TREE_VIEW_ARROW_PRELIT = 1 << 3,
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GTK_TREE_VIEW_HEADERS_VISIBLE = 1 << 4,
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GTK_TREE_VIEW_DRAW_KEYFOCUS = 1 << 5,
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GTK_TREE_VIEW_MODEL_SETUP = 1 << 6,
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GTK_TREE_VIEW_IN_COLUMN_DRAG = 1 << 7
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} GtkTreeViewFlags;
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typedef enum
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{
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GTK_TREE_SELECT_MODE_TOGGLE = 1 << 0,
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GTK_TREE_SELECT_MODE_EXTEND = 1 << 1
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}
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GtkTreeSelectMode;
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enum
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{
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DRAG_COLUMN_WINDOW_STATE_UNSET = 0,
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DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1,
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DRAG_COLUMN_WINDOW_STATE_ARROW = 2,
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DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3,
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DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4
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};
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enum
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{
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RUBBER_BAND_OFF = 0,
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RUBBER_BAND_MAYBE_START = 1,
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RUBBER_BAND_ACTIVE = 2
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};
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#define GTK_TREE_VIEW_SET_FLAG(tree_view, flag) G_STMT_START{ (tree_view->priv->flags|=flag); }G_STMT_END
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#define GTK_TREE_VIEW_UNSET_FLAG(tree_view, flag) G_STMT_START{ (tree_view->priv->flags&=~(flag)); }G_STMT_END
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#define GTK_TREE_VIEW_FLAG_SET(tree_view, flag) ((tree_view->priv->flags&flag)==flag)
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#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)
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#define TREE_VIEW_COLUMN_REQUESTED_WIDTH(column) (CLAMP (column->requested_width, (column->min_width!=-1)?column->min_width:column->requested_width, (column->max_width!=-1)?column->max_width:column->requested_width))
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#define TREE_VIEW_DRAW_EXPANDERS(tree_view) (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST)&>K_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
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/* This lovely little value is used to determine how far away from the title bar
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* you can move the mouse and still have a column drag work.
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*/
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#define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*TREE_VIEW_HEADER_HEIGHT(tree_view))
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typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder;
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struct _GtkTreeViewColumnReorder
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{
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gint left_align;
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gint right_align;
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GtkTreeViewColumn *left_column;
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GtkTreeViewColumn *right_column;
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};
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struct _GtkTreeViewPrivate
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{
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GtkTreeModel *model;
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guint flags;
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/* tree information */
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GtkRBTree *tree;
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/* Container info */
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GList *children;
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gint width;
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gint height;
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/* Adjustments */
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GtkAdjustment *hadjustment;
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GtkAdjustment *vadjustment;
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gint min_display_width;
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gint min_display_height;
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/* Sub windows */
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GdkWindow *bin_window;
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GdkWindow *header_window;
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/* Scroll position state keeping */
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GtkTreeRowReference *top_row;
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gint top_row_dy;
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/* dy == y pos of top_row + top_row_dy */
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/* we cache it for simplicity of the code */
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gint dy;
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guint presize_handler_timer;
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guint validate_rows_timer;
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guint scroll_sync_timer;
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/* Indentation and expander layout */
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gint expander_size;
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GtkTreeViewColumn *expander_column;
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gint level_indentation;
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/* Key navigation (focus), selection */
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gint cursor_offset;
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GtkTreeRowReference *anchor;
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GtkTreeRowReference *cursor;
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GtkTreeViewColumn *focus_column;
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/* Current pressed node, previously pressed, prelight */
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GtkRBNode *button_pressed_node;
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GtkRBTree *button_pressed_tree;
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gint pressed_button;
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gint press_start_x;
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gint press_start_y;
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gint event_last_x;
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gint event_last_y;
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guint last_button_time;
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gint last_button_x;
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gint last_button_y;
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GtkRBNode *prelight_node;
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GtkRBTree *prelight_tree;
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/* Cell Editing */
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GtkTreeViewColumn *edited_column;
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/* The node that's currently being collapsed or expanded */
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GtkRBNode *expanded_collapsed_node;
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GtkRBTree *expanded_collapsed_tree;
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guint expand_collapse_timeout;
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/* Auto expand/collapse timeout in hover mode */
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guint auto_expand_timeout;
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/* Selection information */
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GtkTreeSelection *selection;
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/* Header information */
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gint n_columns;
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GList *columns;
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gint header_height;
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GtkTreeViewColumnDropFunc column_drop_func;
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gpointer column_drop_func_data;
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GDestroyNotify column_drop_func_data_destroy;
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GList *column_drag_info;
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GtkTreeViewColumnReorder *cur_reorder;
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gint prev_width_before_expander;
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/* Interactive Header reordering */
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GdkWindow *drag_window;
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GdkWindow *drag_highlight_window;
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GtkTreeViewColumn *drag_column;
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gint drag_column_x;
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/* Interactive Header Resizing */
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gint drag_pos;
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gint x_drag;
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/* Non-interactive Header Resizing, expand flag support */
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gint prev_width;
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gint last_extra_space;
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gint last_extra_space_per_column;
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gint last_number_of_expand_columns;
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/* ATK Hack */
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GtkTreeDestroyCountFunc destroy_count_func;
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gpointer destroy_count_data;
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GDestroyNotify destroy_count_destroy;
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/* Scroll timeout (e.g. during dnd, rubber banding) */
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guint scroll_timeout;
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/* Row drag-and-drop */
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GtkTreeRowReference *drag_dest_row;
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GtkTreeViewDropPosition drag_dest_pos;
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guint open_dest_timeout;
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/* Rubber banding */
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gint rubber_band_status;
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gint rubber_band_x;
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gint rubber_band_y;
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gint rubber_band_shift;
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gint rubber_band_ctrl;
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GtkRBNode *rubber_band_start_node;
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GtkRBTree *rubber_band_start_tree;
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GtkRBNode *rubber_band_end_node;
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GtkRBTree *rubber_band_end_tree;
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/* fixed height */
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gint fixed_height;
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/* Scroll-to functionality when unrealized */
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GtkTreeRowReference *scroll_to_path;
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GtkTreeViewColumn *scroll_to_column;
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gfloat scroll_to_row_align;
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gfloat scroll_to_col_align;
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/* Interactive search */
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gint selected_iter;
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gint search_column;
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GtkTreeViewSearchPositionFunc search_position_func;
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GtkTreeViewSearchEqualFunc search_equal_func;
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gpointer search_user_data;
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GDestroyNotify search_destroy;
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gpointer search_position_user_data;
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GDestroyNotify search_position_destroy;
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GtkWidget *search_window;
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GtkWidget *search_entry;
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gulong search_entry_changed_id;
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guint typeselect_flush_timeout;
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/* Grid and tree lines */
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GtkTreeViewGridLines grid_lines;
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double grid_line_dashes[2];
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int grid_line_width;
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gboolean tree_lines_enabled;
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double tree_line_dashes[2];
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int tree_line_width;
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/* Row separators */
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GtkTreeViewRowSeparatorFunc row_separator_func;
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gpointer row_separator_data;
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GDestroyNotify row_separator_destroy;
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/* Tooltip support */
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gint tooltip_column;
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/* Here comes the bitfield */
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guint scroll_to_use_align : 1;
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guint fixed_height_mode : 1;
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guint fixed_height_check : 1;
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guint reorderable : 1;
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guint header_has_focus : 1;
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guint drag_column_window_state : 3;
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/* hint to display rows in alternating colors */
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guint has_rules : 1;
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guint mark_rows_col_dirty : 1;
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/* for DnD */
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guint empty_view_drop : 1;
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guint ctrl_pressed : 1;
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guint shift_pressed : 1;
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guint init_hadjust_value : 1;
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guint in_top_row_to_dy : 1;
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/* interactive search */
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guint enable_search : 1;
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guint disable_popdown : 1;
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guint search_custom_entry_set : 1;
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guint hover_selection : 1;
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guint hover_expand : 1;
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guint imcontext_changed : 1;
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guint rubber_banding_enable : 1;
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guint in_grab : 1;
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guint post_validation_flag : 1;
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/* Whether our key press handler is to avoid sending an unhandled binding to the search entry */
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guint search_entry_avoid_unhandled_binding : 1;
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/* GtkScrollablePolicy needs to be checked when
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* driving the scrollable adjustment values */
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guint hscroll_policy : 1;
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guint vscroll_policy : 1;
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};
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#ifdef __GNUC__
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#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"%s (%s): assertion `%s' failed.\n" \
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"There is a disparity between the internal view of the GtkTreeView,\n" \
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"and the GtkTreeModel. This generally means that the model has changed\n"\
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"without letting the view know. Any display from now on is likely to\n" \
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"be incorrect.\n", \
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G_STRLOC, \
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G_STRFUNC, \
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#expr); \
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return ret; \
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}; }G_STMT_END
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#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"%s (%s): assertion `%s' failed.\n" \
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"There is a disparity between the internal view of the GtkTreeView,\n" \
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"and the GtkTreeModel. This generally means that the model has changed\n"\
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"without letting the view know. Any display from now on is likely to\n" \
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"be incorrect.\n", \
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G_STRLOC, \
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G_STRFUNC, \
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#expr); \
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return; \
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}; }G_STMT_END
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#else
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#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: assertion `%s' failed.\n" \
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"There is a disparity between the internal view of the GtkTreeView,\n" \
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"and the GtkTreeModel. This generally means that the model has changed\n"\
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"without letting the view know. Any display from now on is likely to\n" \
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"be incorrect.\n", \
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__FILE__, \
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__LINE__, \
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#expr); \
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return ret; \
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}; }G_STMT_END
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#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: assertion '%s' failed.\n" \
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"There is a disparity between the internal view of the GtkTreeView,\n" \
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"and the GtkTreeModel. This generally means that the model has changed\n"\
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"without letting the view know. Any display from now on is likely to\n" \
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"be incorrect.\n", \
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__FILE__, \
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__LINE__, \
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#expr); \
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return; \
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}; }G_STMT_END
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#endif
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/* functions that shouldn't be exported */
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void _gtk_tree_selection_internal_select_node (GtkTreeSelection *selection,
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GtkRBNode *node,
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GtkRBTree *tree,
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GtkTreePath *path,
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GtkTreeSelectMode mode,
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gboolean override_browse_mode);
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void _gtk_tree_selection_emit_changed (GtkTreeSelection *selection);
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gboolean _gtk_tree_view_find_node (GtkTreeView *tree_view,
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GtkTreePath *path,
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GtkRBTree **tree,
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GtkRBNode **node);
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GtkTreePath *_gtk_tree_view_find_path (GtkTreeView *tree_view,
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GtkRBTree *tree,
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GtkRBNode *node);
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void _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
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GtkWidget *widget,
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gint x,
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gint y,
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gint width,
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gint height);
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void _gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
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GtkRBTree *tree,
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GtkRBNode *node,
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const GdkRectangle *clip_rect);
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void _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column);
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void _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column);
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void _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
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GtkTreeView *tree_view);
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void _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
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GtkTreeModel *old_model);
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void _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column);
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void _gtk_tree_view_column_set_width (GtkTreeViewColumn *column,
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gint width);
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void _gtk_tree_view_column_start_drag (GtkTreeView *tree_view,
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GtkTreeViewColumn *column,
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GdkDevice *device);
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gboolean _gtk_tree_view_column_cell_event (GtkTreeViewColumn *tree_column,
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GtkCellEditable **editable_widget,
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GdkEvent *event,
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gchar *path_string,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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guint flags);
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void _gtk_tree_view_column_start_editing (GtkTreeViewColumn *tree_column,
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GtkCellEditable *editable_widget);
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void _gtk_tree_view_column_stop_editing (GtkTreeViewColumn *tree_column);
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void _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view);
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void _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
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GtkTreeViewColumn *column);
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gboolean _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column);
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GtkCellRenderer *_gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column);
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gint _gtk_tree_view_column_count_special_cells (GtkTreeViewColumn *column);
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GtkCellRenderer *_gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
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gint x);
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GtkTreeSelection* _gtk_tree_selection_new (void);
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GtkTreeSelection* _gtk_tree_selection_new_with_tree_view (GtkTreeView *tree_view);
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void _gtk_tree_selection_set_tree_view (GtkTreeSelection *selection,
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GtkTreeView *tree_view);
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gboolean _gtk_tree_selection_row_is_selectable (GtkTreeSelection *selection,
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GtkRBNode *node,
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GtkTreePath *path);
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void _gtk_tree_view_column_cell_render (GtkTreeViewColumn *tree_column,
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cairo_t *cr,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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guint flags);
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void _gtk_tree_view_column_get_focus_area (GtkTreeViewColumn *tree_column,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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GdkRectangle *focus_area);
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gboolean _gtk_tree_view_column_cell_focus (GtkTreeViewColumn *tree_column,
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gint direction,
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gboolean left,
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gboolean right);
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void _gtk_tree_view_column_cell_draw_focus (GtkTreeViewColumn *tree_column,
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cairo_t *cr,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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guint flags);
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void _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
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gboolean install_handler);
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void _gtk_tree_view_column_get_neighbor_sizes (GtkTreeViewColumn *column,
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GtkCellRenderer *cell,
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gint *left,
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gint *right);
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G_END_DECLS
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#endif /* __GTK_TREE_PRIVATE_H__ */
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