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treeview: Use gdk_drag_begin
This commit is contained in:
Matthias Clasen
parent
fdfa371d90
commit
90cda9e307
@ -33,6 +33,7 @@
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#include "gtkcssstylepropertyprivate.h"
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#include "gtkdragdest.h"
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#include "gtkdragsource.h"
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#include "gtkdragicon.h"
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#include "gtkentryprivate.h"
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#include "gtksearchentryprivate.h"
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#include "gtkeventcontrollerkey.h"
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@ -301,7 +302,11 @@ struct _GtkTreeViewChild
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typedef struct _TreeViewDragInfo TreeViewDragInfo;
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struct _TreeViewDragInfo
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{
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GtkDragSource *source;
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GdkContentFormats *source_formats;
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GdkDragAction source_actions;
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GdkDrag *drag;
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GtkTreeRowReference *source_item;
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GtkDropTarget *dest;
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GdkModifierType start_button_mask;
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@ -676,12 +681,7 @@ static void gtk_tree_view_forall (GtkContainer *container,
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gpointer callback_data);
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/* Source side drag signals */
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static void gtk_tree_view_drag_begin (GtkDragSource *source,
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GdkDrag *drag,
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GtkWidget *widget);
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static void gtk_tree_view_drag_end (GtkDragSource *source,
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GdkDrag *drag,
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gboolean delete_data,
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static void gtk_tree_view_dnd_finished_cb (GdkDrag *drag,
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GtkWidget *widget);
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static GBytes *gtk_tree_view_drag_data_get (const char *mimetype,
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gpointer data);
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@ -6615,29 +6615,6 @@ _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
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/* Drag-and-drop */
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static void
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set_source_row (GtkDragSource *source,
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GtkTreeModel *model,
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GtkTreePath *source_row)
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{
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g_object_set_data_full (G_OBJECT (source),
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I_("gtk-tree-view-source-row"),
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source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
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(GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
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}
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static GtkTreePath*
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get_source_row (GtkDragSource *source)
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{
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GtkTreeRowReference *ref =
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g_object_get_data (G_OBJECT (source), "gtk-tree-view-source-row");
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if (ref)
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return gtk_tree_row_reference_get_path (ref);
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else
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return NULL;
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}
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typedef struct
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{
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GtkTreeRowReference *dest_row;
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@ -6743,7 +6720,8 @@ get_info (GtkTreeView *tree_view)
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static void
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destroy_info (TreeViewDragInfo *di)
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{
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g_clear_object (&di->source);
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g_clear_pointer (&di->source_formats, gdk_content_formats_unref);
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g_clear_pointer (&di->source_item, gtk_tree_row_reference_free);
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g_clear_object (&di->dest);
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g_slice_free (TreeViewDragInfo, di);
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@ -7063,6 +7041,11 @@ gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view)
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GtkTreeModel *model;
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gboolean retval = FALSE;
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gint bin_x, bin_y;
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GdkSurface *surface;
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GdkDevice *device;
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GdkContentProvider *content;
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GdkDrag *drag;
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GdkPaintable *icon;
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di = get_info (tree_view);
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@ -7113,12 +7096,23 @@ gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view)
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gtk_gesture_set_state (GTK_GESTURE (tree_view->drag_gesture),
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GTK_EVENT_SEQUENCE_CLAIMED);
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gtk_drag_source_drag_begin (di->source,
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widget,
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gtk_gesture_get_device (GTK_GESTURE (tree_view->drag_gesture)),
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start_x, start_y);
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surface = gtk_native_get_surface (gtk_widget_get_native (GTK_WIDGET (tree_view)));
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device = gtk_gesture_get_device (GTK_GESTURE (tree_view->drag_gesture)),
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content = gdk_content_provider_new_with_formats (di->source_formats, gtk_tree_view_drag_data_get, tree_view);
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set_source_row (di->source, model, path);
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drag = gdk_drag_begin (surface, device, content, di->source_actions, start_x, start_y);
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g_signal_connect (drag, "dnd-finished", G_CALLBACK (gtk_tree_view_dnd_finished_cb), tree_view);
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icon = gtk_tree_view_create_row_drag_icon (tree_view, path);
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gtk_drag_icon_set_from_paintable (drag, icon, tree_view->press_start_x + 1, 1);
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g_object_unref (icon);
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di->drag = drag;
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g_object_unref (drag);
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di->source_item = gtk_tree_row_reference_new (model, path);
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out:
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if (path)
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@ -7127,55 +7121,8 @@ gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view)
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return retval;
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}
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static void
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gtk_tree_view_drag_begin (GtkDragSource *source,
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GdkDrag *drag,
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GtkWidget *widget)
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{
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GtkTreeView *tree_view;
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GtkTreePath *path = NULL;
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gint cell_x, cell_y;
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GdkPaintable *row_pix;
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TreeViewDragInfo *di;
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tree_view = GTK_TREE_VIEW (widget);
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/* if the user uses a custom DND source impl, we don't set the icon here */
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di = get_info (tree_view);
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if (di == NULL || !di->source_set)
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return;
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gtk_tree_view_get_path_at_pos (tree_view,
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tree_view->press_start_x,
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tree_view->press_start_y,
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&path,
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NULL,
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&cell_x,
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&cell_y);
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/* If path is NULL, there's nothing we can drag. For now, we silently
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* bail out. Actually, dragging should not be possible from an empty
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* tree view, but there's no way we can cancel that from here.
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* Automatically unsetting the tree view as drag source for empty models
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* is something that would likely break other people's code ...
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*/
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if (!path)
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return;
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row_pix = gtk_tree_view_create_row_drag_icon (tree_view, path);
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gtk_drag_source_set_icon (source, row_pix, tree_view->press_start_x + 1, 1);
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g_object_unref (row_pix);
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gtk_tree_path_free (path);
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}
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static void
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gtk_tree_view_drag_end (GtkDragSource *source,
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GdkDrag *drag,
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gboolean delete_data,
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gtk_tree_view_dnd_finished_cb (GdkDrag *drag,
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GtkWidget *widget)
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{
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GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
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@ -7186,7 +7133,7 @@ gtk_tree_view_drag_end (GtkDragSource *source,
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tree_view->event_last_x = -10000;
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tree_view->event_last_y = -10000;
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if (!delete_data)
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if (gdk_drag_get_selected_action (drag) != GDK_ACTION_MOVE)
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return;
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tree_view = GTK_TREE_VIEW (widget);
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@ -7197,10 +7144,10 @@ gtk_tree_view_drag_end (GtkDragSource *source,
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di = get_info (tree_view);
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if (di == NULL)
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if (di == NULL || di->source_item == NULL)
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return;
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source_row = get_source_row (source);
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source_row = gtk_tree_row_reference_get_path (di->source_item);
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if (source_row == NULL)
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return;
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@ -7209,7 +7156,7 @@ gtk_tree_view_drag_end (GtkDragSource *source,
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gtk_tree_path_free (source_row);
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set_source_row (source, NULL, NULL);
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g_clear_pointer (&di->source_item, gtk_tree_row_reference_free);
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}
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/* Default signal implementations for the drag signals */
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@ -7232,10 +7179,10 @@ gtk_tree_view_drag_data_get (const char *mime_type,
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di = get_info (tree_view);
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if (di == NULL)
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if (di == NULL || di->source_item == NULL)
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return NULL;
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source_row = get_source_row (di->source);
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source_row = gtk_tree_row_reference_get_path (di->source_item);
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if (source_row == NULL)
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return NULL;
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@ -7415,14 +7362,13 @@ gtk_tree_view_get_action (GtkWidget *widget,
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GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
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TreeViewDragInfo *di;
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GdkDrag *drag = gdk_drop_get_drag (drop);
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GtkDragSource *source = drag ? gtk_drag_get_source (drag) : NULL;
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GdkDragAction actions;
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di = get_info (tree_view);
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actions = gdk_drop_get_actions (drop);
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if (di && source && di->source == source &&
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if (di && di->drag == drag &&
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actions & GDK_ACTION_MOVE)
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return GDK_ACTION_MOVE;
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@ -12912,35 +12858,27 @@ unset_reorderable (GtkTreeView *tree_view)
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*
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* Turns @tree_view into a drag source for automatic DND. Calling this
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* method sets #GtkTreeView:reorderable to %FALSE.
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*
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* Returns: (transfer none): the #GtkDragSource that has been attached to @tree_view
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**/
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GtkDragSource *
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void
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gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view,
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GdkModifierType start_button_mask,
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GdkContentFormats *formats,
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GdkDragAction actions)
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{
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TreeViewDragInfo *di;
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GdkContentProvider *content;
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g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
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g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
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di = ensure_info (tree_view);
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content = gdk_content_provider_new_with_formats (formats, gtk_tree_view_drag_data_get, tree_view);
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di->source = gtk_drag_source_new ();
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gtk_drag_source_set_content (di->source, content);
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gtk_drag_source_set_actions (di->source, actions);
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g_object_unref (content);
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g_signal_connect (di->source, "drag-begin", G_CALLBACK (gtk_tree_view_drag_begin), tree_view);
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g_signal_connect (di->source, "drag-end", G_CALLBACK (gtk_tree_view_drag_end), tree_view);
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di->source_formats = gdk_content_formats_ref (formats);
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di->source_actions = actions;
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di->drag = NULL;
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di->start_button_mask = start_button_mask;
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di->source_set = TRUE;
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unset_reorderable (tree_view);
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return di->source;
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}
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/**
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@ -13000,7 +12938,7 @@ gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
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{
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if (di->source_set)
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{
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g_clear_object (&di->source);
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g_clear_pointer (&di->source_formats, gdk_content_formats_unref);
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di->source_set = FALSE;
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}
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@ -315,7 +315,7 @@ gboolean gtk_tree_view_is_blank_at_pos (GtkTreeView
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/* Drag-and-Drop support */
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GDK_AVAILABLE_IN_ALL
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GtkDragSource * gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view,
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void gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view,
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GdkModifierType start_button_mask,
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GdkContentFormats *formats,
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GdkDragAction actions);
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