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authorrubidium <rubidium@openttd.org>2011-12-04 14:00:23 +0000
committerrubidium <rubidium@openttd.org>2011-12-04 14:00:23 +0000
commit8b5d315d2a89f36dd06ec2f5c9b1c600767039ee (patch)
treed899a34dd95617e275bc68448336ab92a8c71aa4
parent6711026011384817d6b9c9445490bf1c81f968f8 (diff)
downloadopenttd-8b5d315d2a89f36dd06ec2f5c9b1c600767039ee.tar.xz
(svn r23429) -Fix [FS#4842]: prevent windows to be resized beyond the bounds of the (main) window
-rw-r--r--src/window.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/window.cpp b/src/window.cpp
index 390777fae..285a18711 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1671,6 +1671,13 @@ static void EnsureVisibleCaption(Window *w, int nx, int ny)
void ResizeWindow(Window *w, int delta_x, int delta_y)
{
if (delta_x != 0 || delta_y != 0) {
+ /* Determine the new right/bottom position. If that is outside of the bounds of
+ * the resolution clamp it in such a manner that it stays within the bounts. */
+ int new_right = w->left + w->width + delta_x;
+ int new_bottom = w->top + w->height + delta_y;
+ if (new_right >= (int)_cur_resolution.width) delta_x -= new_right - _cur_resolution.width;
+ if (new_bottom >= (int)_cur_resolution.height) delta_y -= new_bottom - _cur_resolution.height;
+
w->SetDirty();
uint new_xinc = max(0, (w->nested_root->resize_x == 0) ? 0 : (int)(w->nested_root->current_x - w->nested_root->smallest_x) + delta_x);