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-rw-r--r--widgets/misc/e-canvas-utils.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/widgets/misc/e-canvas-utils.c b/widgets/misc/e-canvas-utils.c
deleted file mode 100644
index ec3aad3858..0000000000
--- a/widgets/misc/e-canvas-utils.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) version 3.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the program; if not, see <http://www.gnu.org/licenses/>
- *
- *
- * Authors:
- * Chris Lahey <clahey@ximian.com>
- *
- * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "e-canvas-utils.h"
-
-void
-e_canvas_item_move_absolute (GnomeCanvasItem *item,
- gdouble dx,
- gdouble dy)
-{
- cairo_matrix_t translate;
-
- g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
-
- cairo_matrix_init_translate (&translate, dx, dy);
-
- gnome_canvas_item_set_matrix (item, &translate);
-}
-
-static double
-compute_offset (gint top,
- gint bottom,
- gint page_top,
- gint page_bottom)
-{
- gint size = bottom - top;
- gint offset = 0;
-
- if (top <= page_top && bottom >= page_bottom)
- return 0;
-
- if (bottom > page_bottom)
- offset = (bottom - page_bottom);
- if (top < page_top + offset)
- offset = (top - page_top);
-
- if (top <= page_top + offset && bottom >= page_bottom + offset)
- return offset;
-
- if (top < page_top + size * 3 / 2 + offset)
- offset = top - (page_top + size * 3 / 2);
- if (bottom > page_bottom - size * 3 / 2 + offset)
- offset = bottom - (page_bottom - size * 3 / 2);
- if (top < page_top + size * 3 / 2 + offset)
- offset = top - ((page_top + page_bottom - (bottom - top)) / 2);
-
- return offset;
-}
-
-static void
-e_canvas_show_area (GnomeCanvas *canvas,
- gdouble x1,
- gdouble y1,
- gdouble x2,
- gdouble y2)
-{
- GtkAdjustment *h, *v;
- gint dx = 0, dy = 0;
- gdouble page_size;
- gdouble lower;
- gdouble upper;
- gdouble value;
-
- g_return_if_fail (canvas != NULL);
- g_return_if_fail (GNOME_IS_CANVAS (canvas));
-
- h = gtk_scrollable_get_hadjustment (GTK_SCROLLABLE (canvas));
- page_size = gtk_adjustment_get_page_size (h);
- lower = gtk_adjustment_get_lower (h);
- upper = gtk_adjustment_get_upper (h);
- value = gtk_adjustment_get_value (h);
- dx = compute_offset (x1, x2, value, value + page_size);
- if (dx)
- gtk_adjustment_set_value (h, CLAMP (value + dx, lower, upper - page_size));
-
- v = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (canvas));
- page_size = gtk_adjustment_get_page_size (v);
- lower = gtk_adjustment_get_lower (v);
- upper = gtk_adjustment_get_upper (v);
- value = gtk_adjustment_get_value (v);
- dy = compute_offset (y1, y2, value, value + page_size);
- if (dy)
- gtk_adjustment_set_value (v, CLAMP (value + dy, lower, upper - page_size));
-}
-
-void
-e_canvas_item_show_area (GnomeCanvasItem *item,
- gdouble x1,
- gdouble y1,
- gdouble x2,
- gdouble y2)
-{
- g_return_if_fail (item != NULL);
- g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
-
- gnome_canvas_item_i2w (item, &x1, &y1);
- gnome_canvas_item_i2w (item, &x2, &y2);
-
- e_canvas_show_area (item->canvas, x1, y1, x2, y2);
-}
-
-static gboolean
-e_canvas_area_shown (GnomeCanvas *canvas,
- gdouble x1,
- gdouble y1,
- gdouble x2,
- gdouble y2)
-{
- GtkAdjustment *h, *v;
- gint dx = 0, dy = 0;
- gdouble page_size;
- gdouble lower;
- gdouble upper;
- gdouble value;
-
- g_return_val_if_fail (canvas != NULL, FALSE);
- g_return_val_if_fail (GNOME_IS_CANVAS (canvas), FALSE);
-
- h = gtk_scrollable_get_hadjustment (GTK_SCROLLABLE (canvas));
- page_size = gtk_adjustment_get_page_size (h);
- lower = gtk_adjustment_get_lower (h);
- upper = gtk_adjustment_get_upper (h);
- value = gtk_adjustment_get_value (h);
- dx = compute_offset (x1, x2, value, value + page_size);
- if (CLAMP (value + dx, lower, upper - page_size) - value != 0)
- return FALSE;
-
- v = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (canvas));
- page_size = gtk_adjustment_get_page_size (v);
- lower = gtk_adjustment_get_lower (v);
- upper = gtk_adjustment_get_upper (v);
- value = gtk_adjustment_get_value (v);
- dy = compute_offset (y1, y2, value, value + page_size);
- if (CLAMP (value + dy, lower, upper - page_size) - value != 0)
- return FALSE;
- return TRUE;
-}
-
-gboolean
-e_canvas_item_area_shown (GnomeCanvasItem *item,
- gdouble x1,
- gdouble y1,
- gdouble x2,
- gdouble y2)
-{
- g_return_val_if_fail (item != NULL, FALSE);
- g_return_val_if_fail (GNOME_IS_CANVAS_ITEM (item), FALSE);
-
- gnome_canvas_item_i2w (item, &x1, &y1);
- gnome_canvas_item_i2w (item, &x2, &y2);
-
- return e_canvas_area_shown (item->canvas, x1, y1, x2, y2);
-}
-
-typedef struct {
- gdouble x1;
- gdouble y1;
- gdouble x2;
- gdouble y2;
- GnomeCanvas *canvas;
-} DoubsAndCanvas;
-
-static gboolean
-show_area_timeout (gpointer data)
-{
- DoubsAndCanvas *dac = data;
-
- e_canvas_show_area (dac->canvas, dac->x1, dac->y1, dac->x2, dac->y2);
- g_object_unref (dac->canvas);
- g_free (dac);
- return FALSE;
-}
-
-void
-e_canvas_item_show_area_delayed (GnomeCanvasItem *item,
- gdouble x1,
- gdouble y1,
- gdouble x2,
- gdouble y2,
- gint delay)
-{
- DoubsAndCanvas *dac;
-
- g_return_if_fail (item != NULL);
- g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
-
- gnome_canvas_item_i2w (item, &x1, &y1);
- gnome_canvas_item_i2w (item, &x2, &y2);
-
- dac = g_new (DoubsAndCanvas, 1);
- dac->x1 = x1;
- dac->y1 = y1;
- dac->x2 = x2;
- dac->y2 = y2;
- dac->canvas = item->canvas;
- g_object_ref (item->canvas);
- g_timeout_add (delay, show_area_timeout, dac);
-}
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