Initial import of Sylpheed (GTK2 version).

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@1 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 573 insertions, 0 deletions

diff --git a/src/gtksctree.c b/src/gtksctree.c
new file mode 100644
index 00000000..eddb52fc
--- /dev/null
+++ b/src/gtksctree.c
@@ -0,0 +1,573 @@
+/*
+ * This program is based on gtkflist.c
+ */
+
+#include "gtksctree.h"
+#include "sylpheed-marshal.h"
+
+enum {
+	ROW_POPUP_MENU,
+	EMPTY_POPUP_MENU,
+	OPEN_ROW,
+	START_DRAG,
+	LAST_SIGNAL
+};
+
+
+static void gtk_sctree_class_init (GtkSCTreeClass *class);
+static void gtk_sctree_init (GtkSCTree *sctree);
+
+static gint gtk_sctree_button_press (GtkWidget *widget, GdkEventButton *event);
+static gint gtk_sctree_button_release (GtkWidget *widget, GdkEventButton *event);
+static gint gtk_sctree_motion (GtkWidget *widget, GdkEventMotion *event);
+static void gtk_sctree_drag_begin (GtkWidget *widget, GdkDragContext *context);
+static void gtk_sctree_drag_end (GtkWidget *widget, GdkDragContext *context);
+static void gtk_sctree_drag_data_get (GtkWidget *widget, GdkDragContext *context,
+				     GtkSelectionData *data, guint info, guint time);
+static void gtk_sctree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time);
+static gboolean gtk_sctree_drag_motion (GtkWidget *widget, GdkDragContext *context,
+				       gint x, gint y, guint time);
+static gboolean gtk_sctree_drag_drop (GtkWidget *widget, GdkDragContext *context,
+				     gint x, gint y, guint time);
+static void gtk_sctree_drag_data_received (GtkWidget *widget, GdkDragContext *context,
+					  gint x, gint y, GtkSelectionData *data,
+					  guint info, guint time);
+
+static void gtk_sctree_clear (GtkCList *clist);
+static void gtk_sctree_collapse (GtkCTree *ctree, GtkCTreeNode *node);
+       
+static GtkCTreeClass *parent_class;
+
+static guint sctree_signals[LAST_SIGNAL];
+
+
+/**
+ * gtk_sctree_get_type:
+ * @void: 
+ * 
+ * Creates the GtkSCTree class and its type information
+ * 
+ * Return value: The type ID for GtkSCTreeClass
+ **/
+GType
+gtk_sctree_get_type (void)
+{
+	static GType sctree_type = 0;
+
+	if (!sctree_type) {
+		GTypeInfo sctree_info = {
+			sizeof (GtkSCTreeClass),
+
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+
+			(GClassInitFunc) gtk_sctree_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,	/* class_data */
+
+			sizeof (GtkSCTree),
+			0,	/* n_preallocs */
+			(GInstanceInitFunc) gtk_sctree_init,
+		};
+
+		sctree_type = g_type_register_static (GTK_TYPE_CTREE, "GtkSCTree", &sctree_info, (GTypeFlags)0);
+	}
+
+	return sctree_type;
+}
+
+/* Standard class initialization function */
+static void
+gtk_sctree_class_init (GtkSCTreeClass *klass)
+{
+	GtkObjectClass *object_class;
+	GtkWidgetClass *widget_class;
+	GtkCListClass *clist_class;
+	GtkCTreeClass *ctree_class;
+
+	object_class = (GtkObjectClass *) klass;
+	widget_class = (GtkWidgetClass *) klass;
+	clist_class = (GtkCListClass *) klass;
+	ctree_class = (GtkCTreeClass *) klass;
+
+	parent_class = gtk_type_class (gtk_ctree_get_type ());
+
+	sctree_signals[ROW_POPUP_MENU] =
+		g_signal_new ("row_popup_menu",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (GtkSCTreeClass, row_popup_menu),
+			      NULL, NULL,
+			      sylpheed_marshal_VOID__POINTER,
+			      G_TYPE_NONE, 1,
+			      GDK_TYPE_EVENT);
+	sctree_signals[EMPTY_POPUP_MENU] =
+		g_signal_new ("empty_popup_menu",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (GtkSCTreeClass, empty_popup_menu),
+			      NULL, NULL,
+			      sylpheed_marshal_VOID__POINTER,
+			      G_TYPE_NONE, 1,
+			      GDK_TYPE_EVENT);
+	sctree_signals[OPEN_ROW] =
+		g_signal_new ("open_row",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (GtkSCTreeClass, open_row),
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__VOID,
+			      G_TYPE_NONE, 0);
+	sctree_signals[START_DRAG] =
+		g_signal_new ("start_drag",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (GtkSCTreeClass, start_drag),
+			      NULL, NULL,
+			      sylpheed_marshal_VOID__INT_POINTER,
+			      G_TYPE_NONE, 2,
+			      G_TYPE_INT,
+			      GDK_TYPE_EVENT);
+
+	/* gtk_object_class_add_signals (object_class, sctree_signals, LAST_SIGNAL); */
+
+	clist_class->clear = gtk_sctree_clear;
+        ctree_class->tree_collapse = gtk_sctree_collapse;
+	
+	widget_class->button_press_event = gtk_sctree_button_press;
+	widget_class->button_release_event = gtk_sctree_button_release;
+	widget_class->motion_notify_event = gtk_sctree_motion;
+	widget_class->drag_begin = gtk_sctree_drag_begin;
+	widget_class->drag_end = gtk_sctree_drag_end;
+	widget_class->drag_data_get = gtk_sctree_drag_data_get;
+	widget_class->drag_leave = gtk_sctree_drag_leave;
+	widget_class->drag_motion = gtk_sctree_drag_motion;
+	widget_class->drag_drop = gtk_sctree_drag_drop;
+	widget_class->drag_data_received = gtk_sctree_drag_data_received;
+}
+
+/* Standard object initialization function */
+static void
+gtk_sctree_init (GtkSCTree *sctree)
+{
+	sctree->anchor_row = NULL;
+
+	/* GtkCTree does not specify pointer motion by default */
+	gtk_widget_add_events (GTK_WIDGET (sctree), GDK_POINTER_MOTION_MASK);
+	gtk_widget_add_events (GTK_WIDGET (sctree), GDK_POINTER_MOTION_MASK);
+}
+
+/* Get information the specified row is selected. */
+
+static gboolean
+row_is_selected(GtkSCTree *sctree, gint row)
+{
+	GtkCListRow *clist_row;
+	clist_row =  g_list_nth (GTK_CLIST(sctree)->row_list, row)->data;
+	return clist_row ? clist_row->state == GTK_STATE_SELECTED : FALSE;
+}
+
+/* Selects the rows between the anchor to the specified row, inclusive.  */
+static void
+select_range (GtkSCTree *sctree, gint row)
+{
+	gint prev_row;
+	gint min, max;
+	gint i;
+
+	if (sctree->anchor_row == NULL) {
+		prev_row = row;
+		sctree->anchor_row = gtk_ctree_node_nth(GTK_CTREE(sctree), row);
+	} else
+		prev_row = g_list_position(GTK_CLIST(sctree)->row_list,
+					   (GList *)sctree->anchor_row);
+
+	if (row < prev_row) {
+		min = row;
+		max = prev_row;
+	} else {
+		min = prev_row;
+		max = row;
+	}
+	for (i = min; i <= max; i++)
+		gtk_clist_select_row (GTK_CLIST (sctree), i, -1);
+}
+
+/* Handles row selection according to the specified modifier state */
+static void
+select_row (GtkSCTree *sctree, gint row, gint col, guint state)
+{
+	gboolean range, additive;
+	g_return_if_fail (sctree != NULL);
+	g_return_if_fail (GTK_IS_SCTREE (sctree));
+    
+	range = ((state & GDK_SHIFT_MASK) != 0) &&
+		(GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_SINGLE) &&
+		(GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_BROWSE);
+	additive = ((state & GDK_CONTROL_MASK) != 0) &&
+		   (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_SINGLE) &&
+		   (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_BROWSE);
+
+	gtk_clist_freeze (GTK_CLIST (sctree));
+	GTK_CLIST(sctree)->focus_row = row;
+	GTK_CLIST_GET_CLASS(sctree)->refresh(GTK_CLIST(sctree));
+	if (!additive)
+		gtk_clist_unselect_all (GTK_CLIST (sctree));
+
+	if (!range) {
+		GtkCTreeNode *node;
+
+		node = gtk_ctree_node_nth (GTK_CTREE(sctree), row);
+
+		/*No need to manage overlapped list*/
+		if (additive) {
+			if (row_is_selected(sctree, row))
+				gtk_clist_unselect_row (GTK_CLIST (sctree), row, col);
+			else
+				g_signal_emit_by_name
+					(G_OBJECT (sctree),
+					 "tree_select_row", node, col);
+		} else {
+			g_signal_emit_by_name
+				(G_OBJECT (sctree),
+				 "tree_select_row", node, col);
+		}
+		sctree->anchor_row = node;
+	} else
+		select_range (sctree, row);
+	gtk_clist_thaw (GTK_CLIST (sctree));
+}
+
+/* Our handler for button_press events.  We override all of GtkCList's broken
+ * behavior.
+ */
+static gint
+gtk_sctree_button_press (GtkWidget *widget, GdkEventButton *event)
+{
+	GtkSCTree *sctree;
+	GtkCList *clist;
+	gboolean on_row;
+	gint row;
+	gint col;
+	gint retval;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	sctree = GTK_SCTREE (widget);
+	clist = GTK_CLIST (widget);
+	retval = FALSE;
+
+	if (event->window != clist->clist_window)
+		return (* GTK_WIDGET_CLASS (parent_class)->button_press_event) (widget, event);
+
+	on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
+
+	if (on_row && !GTK_WIDGET_HAS_FOCUS(widget))
+		gtk_widget_grab_focus (widget);
+
+	if (gtk_ctree_is_hot_spot (GTK_CTREE(sctree), event->x, event->y)) {
+		gtk_ctree_toggle_expansion
+			(GTK_CTREE(sctree), 
+			 gtk_ctree_node_nth(GTK_CTREE(sctree), row));
+		return TRUE;
+	}
+
+	switch (event->type) {
+	case GDK_BUTTON_PRESS:
+		if (event->button == 1 || event->button == 2) {
+			if (event->button == 2)
+				event->state &= ~(GDK_SHIFT_MASK | GDK_CONTROL_MASK);
+			if (on_row) {
+				/* Save the mouse info for DnD */
+				sctree->dnd_press_button = event->button;
+				sctree->dnd_press_x = event->x;
+				sctree->dnd_press_y = event->y;
+
+				/* Handle selection */
+				if ((row_is_selected (sctree, row)
+				     && !(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)))
+				    || ((event->state & GDK_CONTROL_MASK)
+					&& !(event->state & GDK_SHIFT_MASK))) {
+					sctree->dnd_select_pending = TRUE;
+					sctree->dnd_select_pending_state = event->state;
+					sctree->dnd_select_pending_row = row;
+				} else
+					select_row (sctree, row, col, event->state);
+			} else
+				gtk_clist_unselect_all (clist);
+
+			retval = TRUE;
+		} else if (event->button == 3) {
+			/* Emit *_popup_menu signal*/
+			if (on_row) {
+				if (!row_is_selected(sctree,row))
+					select_row (sctree, row, col, 0);
+				g_signal_emit (G_OBJECT (sctree),
+					       sctree_signals[ROW_POPUP_MENU],
+					       0, event);
+			} else {
+				gtk_clist_unselect_all(clist);
+				g_signal_emit (G_OBJECT (sctree),
+					       sctree_signals[EMPTY_POPUP_MENU],
+					       0, event);
+			}
+			retval = TRUE;
+		}
+
+		break;
+
+	case GDK_2BUTTON_PRESS:
+		if (event->button != 1)
+			break;
+
+		sctree->dnd_select_pending = FALSE;
+		sctree->dnd_select_pending_state = 0;
+
+		if (on_row)
+			g_signal_emit (G_OBJECT (sctree),
+				       sctree_signals[OPEN_ROW], 0);
+
+		retval = TRUE;
+		break;
+
+	default:
+		break;
+	}
+
+	return retval;
+}
+
+/* Our handler for button_release events.  We override all of GtkCList's broken
+ * behavior.
+ */
+static gint
+gtk_sctree_button_release (GtkWidget *widget, GdkEventButton *event)
+{
+	GtkSCTree *sctree;
+	GtkCList *clist;
+	gint on_row;
+	gint row, col;
+	gint retval;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	sctree = GTK_SCTREE (widget);
+	clist = GTK_CLIST (widget);
+	retval = FALSE;
+
+	if (event->window != clist->clist_window)
+		return (* GTK_WIDGET_CLASS (parent_class)->button_release_event) (widget, event);
+
+	on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
+
+	if (!(event->button == 1 || event->button == 2))
+		return FALSE;
+
+	sctree->dnd_press_button = 0;
+	sctree->dnd_press_x = 0;
+	sctree->dnd_press_y = 0;
+
+	if (on_row) {
+		if (sctree->dnd_select_pending) {
+			select_row (sctree, row, col, sctree->dnd_select_pending_state);
+			sctree->dnd_select_pending = FALSE;
+			sctree->dnd_select_pending_state = 0;
+		}
+
+		retval = TRUE;
+	}
+
+	return retval;
+}
+
+/* Our handler for motion_notify events.  We override all of GtkCList's broken
+ * behavior.
+ */
+static gint
+gtk_sctree_motion (GtkWidget *widget, GdkEventMotion *event)
+{
+	GtkSCTree *sctree;
+	GtkCList *clist;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	sctree = GTK_SCTREE (widget);
+	clist = GTK_CLIST (widget);
+
+	if (event->window != clist->clist_window)
+		return (* GTK_WIDGET_CLASS (parent_class)->motion_notify_event) (widget, event);
+
+	if (!((sctree->dnd_press_button == 1 && (event->state & GDK_BUTTON1_MASK))
+	      || (sctree->dnd_press_button == 2 && (event->state & GDK_BUTTON2_MASK))))
+		return FALSE;
+
+	/* This is the same threshold value that is used in gtkdnd.c */
+
+	if (MAX (ABS (sctree->dnd_press_x - event->x),
+		 ABS (sctree->dnd_press_y - event->y)) <= 3)
+		return FALSE;
+
+	/* Handle any pending selections */
+
+	if (sctree->dnd_select_pending) {
+		if (!row_is_selected(sctree,sctree->dnd_select_pending_row))
+			select_row (sctree,
+				    sctree->dnd_select_pending_row,
+				    -1,
+				    sctree->dnd_select_pending_state);
+
+		sctree->dnd_select_pending = FALSE;
+		sctree->dnd_select_pending_state = 0;
+	}
+
+	g_signal_emit (G_OBJECT (sctree),
+		       sctree_signals[START_DRAG],
+		       0,
+		       sctree->dnd_press_button,
+		       event);
+	return TRUE;
+}
+
+/* We override the drag_begin signal to do nothing */
+static void
+gtk_sctree_drag_begin (GtkWidget *widget, GdkDragContext *context)
+{
+	/* nothing */
+}
+
+/* We override the drag_end signal to do nothing */
+static void
+gtk_sctree_drag_end (GtkWidget *widget, GdkDragContext *context)
+{
+	/* nothing */
+}
+
+/* We override the drag_data_get signal to do nothing */
+static void
+gtk_sctree_drag_data_get (GtkWidget *widget, GdkDragContext *context,
+				     GtkSelectionData *data, guint info, guint time)
+{
+	/* nothing */
+}
+
+/* We override the drag_leave signal to do nothing */
+static void
+gtk_sctree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time)
+{
+	/* nothing */
+}
+
+/* We override the drag_motion signal to do nothing */
+static gboolean
+gtk_sctree_drag_motion (GtkWidget *widget, GdkDragContext *context,
+				   gint x, gint y, guint time)
+{
+	return FALSE;
+}
+
+/* We override the drag_drop signal to do nothing */
+static gboolean
+gtk_sctree_drag_drop (GtkWidget *widget, GdkDragContext *context,
+				 gint x, gint y, guint time)
+{
+	return FALSE;
+}
+
+/* We override the drag_data_received signal to do nothing */
+static void
+gtk_sctree_drag_data_received (GtkWidget *widget, GdkDragContext *context,
+					  gint x, gint y, GtkSelectionData *data,
+					  guint info, guint time)
+{
+	/* nothing */
+}
+
+/* Our handler for the clear signal of the clist.  We have to reset the anchor
+ * to null.
+ */
+static void
+gtk_sctree_clear (GtkCList *clist)
+{
+	GtkSCTree *sctree;
+
+	g_return_if_fail (clist != NULL);
+	g_return_if_fail (GTK_IS_SCTREE (clist));
+
+	sctree = GTK_SCTREE (clist);
+	sctree->anchor_row = NULL;
+
+	if (((GtkCListClass *)parent_class)->clear)
+		(* ((GtkCListClass *)parent_class)->clear) (clist);
+}
+
+/* Our handler for the change_focus_row_expansion signal of the ctree.  
+ We have to set the anchor to parent visible node.
+ */
+static void 
+gtk_sctree_collapse (GtkCTree *ctree, GtkCTreeNode *node)
+{
+	g_return_if_fail (ctree != NULL);
+	g_return_if_fail (GTK_IS_SCTREE (ctree));
+
+        (* parent_class->tree_collapse) (ctree, node);
+	GTK_SCTREE(ctree)->anchor_row =
+		gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->focus_row);
+}
+
+GtkWidget *gtk_sctree_new_with_titles (gint columns, gint tree_column, 
+				       gchar *titles[])
+{
+#if 0
+	GtkSCTree* sctree;
+
+	sctree = gtk_type_new (gtk_sctree_get_type ());
+	gtk_ctree_construct (GTK_CTREE (sctree), columns, tree_column, titles);
+	gtk_clist_set_selection_mode(GTK_CLIST(sctree), GTK_SELECTION_EXTENDED);
+
+	return GTK_WIDGET (sctree);
+#else
+	GtkWidget *widget;
+
+	g_return_val_if_fail (columns > 0, NULL);
+	g_return_val_if_fail (tree_column >= 0 && tree_column < columns, NULL);
+
+	widget = gtk_widget_new (TYPE_GTK_SCTREE,
+				 "n_columns", columns,
+				 "tree_column", tree_column,
+				 NULL);
+	if (titles) {
+		GtkCList *clist = GTK_CLIST (widget);
+		guint i;
+
+		for (i = 0; i < columns; i++)
+			gtk_clist_set_column_title (clist, i, titles[i]);
+		gtk_clist_column_titles_show (clist);
+	}
+
+	return widget;
+#endif
+}
+
+void gtk_sctree_select (GtkSCTree *sctree, GtkCTreeNode *node)
+{
+	select_row(sctree, 
+		   g_list_position(GTK_CLIST(sctree)->row_list, (GList *)node),
+		   -1, 0);
+}
+
+void gtk_sctree_unselect_all (GtkSCTree *sctree)
+{
+	gtk_clist_unselect_all(GTK_CLIST(sctree));
+	sctree->anchor_row = NULL;
+}
+
+void gtk_sctree_set_anchor_row (GtkSCTree *sctree, GtkCTreeNode *node)
+{
+	sctree->anchor_row = node;
+}