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authorChristopher James Lahey <clahey@helixcode.com>2001-01-26 06:27:09 +0800
committerChris Lahey <clahey@src.gnome.org>2001-01-26 06:27:09 +0800
commit5066180bc3abb54876b91bbfc2ac4dcb467cc586 (patch)
treeae4c14e1fac97ed1e920aab98d61441810005092 /widgets/misc
parent09e274295f6174991a1dd684160b3902b25eeb35 (diff)
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Clamp the value we set here. (compute_offset): Switched to ints here.
2001-01-25 Christopher James Lahey <clahey@helixcode.com> * gal/widgets/e-canvas-utils.c (e_canvas_item_show_area): Clamp the value we set here. (compute_offset): Switched to ints here. svn path=/trunk/; revision=7825
Diffstat (limited to 'widgets/misc')
-rw-r--r--widgets/misc/e-canvas-utils.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/widgets/misc/e-canvas-utils.c b/widgets/misc/e-canvas-utils.c
index 13267b3ac4..f7b937a8fd 100644
--- a/widgets/misc/e-canvas-utils.c
+++ b/widgets/misc/e-canvas-utils.c
@@ -36,13 +36,13 @@ e_canvas_item_move_absolute (GnomeCanvasItem *item, double dx, double dy)
}
static double
-compute_offset(double top, double bottom, double page_top, double page_bottom, double min, double max)
+compute_offset(int top, int bottom, int page_top, int page_bottom)
{
- double size = bottom - top;
- double offset = 0;
+ int size = bottom - top;
+ int offset = 0;
if (top <= page_top && bottom >= page_bottom)
- return CLAMP(0, min - top, max - top);
+ return 0;
if (bottom > page_bottom)
offset = (bottom - page_bottom);
@@ -50,16 +50,16 @@ compute_offset(double top, double bottom, double page_top, double page_bottom, d
offset = (top - page_top);
if (top <= page_top + offset && bottom >= page_bottom + offset)
- return CLAMP(offset, min - top, max - top);
+ return offset;
- if (top < page_top + offset + size * 1.5)
- offset = top - (page_top + size * 1.5);
- if (bottom > page_bottom + offset - size * 1.5)
- offset = bottom - (page_bottom - size * 1.5);
- if (top < page_top + offset + size * 1.5)
+ 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 CLAMP(offset, min - top, max - top);
+ return offset;
}
@@ -67,7 +67,7 @@ void
e_canvas_item_show_area (GnomeCanvasItem *item, double x1, double y1, double x2, double y2)
{
GtkAdjustment *h, *v;
- double dx = 0, dy = 0;
+ int dx = 0, dy = 0;
g_return_if_fail (item != NULL);
g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
@@ -76,12 +76,12 @@ e_canvas_item_show_area (GnomeCanvasItem *item, double x1, double y1, double x2,
gnome_canvas_item_i2w(item, &x2, &y2);
h = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
- dx = compute_offset(x1, x2, h->value, h->value + h->page_size, 0, h->upper - h->page_size);
+ dx = compute_offset(x1, x2, h->value, h->value + h->page_size);
if (dx)
- gtk_adjustment_set_value(h, h->value + dx);
+ gtk_adjustment_set_value(h, CLAMP(h->value + dx, h->lower, h->upper - h->page_size));
v = gtk_layout_get_vadjustment(GTK_LAYOUT(item->canvas));
- dy = compute_offset(y1, y2, v->value, v->value + v->page_size, 0, v->upper - v->page_size);
+ dy = compute_offset(y1, y2, v->value, v->value + v->page_size);
if (dy)
- gtk_adjustment_set_value(v, v->value + dy);
+ gtk_adjustment_set_value(v, CLAMP(v->value + dy, v->lower, v->upper - v->page_size));
}