stop gvim from repeatedly resizing tabbed windows

ChangeLog

@@ -1,8 +1,11 @@
  (Format: Year/Month/Day)
 Changes for 1.0.0:
 *07/07/03:
+   * Avoid some problems with tabbed windows and resize increments (Mark)
+     Window.cc WinClient.cc/hh
    * Added utility fluxbox-remote, which takes one argument and has fluxbox
      execute it just like in the keys file (Mark)
+     - e.g. fluxbox-remote "CustomMenu ~/.fluxbox/custommenu"
      Screen.cc util/fluxbox-remote.cc util/Makefile.am
    * Update systemtray and KDE dockapps in slit when background changes (Mark)
      Screen.cc/hh Systemtray.cc Slit.cc FbTk/FbPixmap.cc/hh

src/FbTk/FbPixmap.cc

@@ -114,13 +114,14 @@ FbPixmap &FbPixmap::operator = (Pixmap pm) {
     Window root;
     int x, y;
     unsigned int border_width, bpp;
-    XGetGeometry(display(),
-                 pm,
-                 &root,
-                 &x, &y,
-                 &m_width, &m_height,
-                 &border_width,
-                 &bpp);
+    if (!XGetGeometry(display(),
+                      pm,
+                      &root,
+                      &x, &y,
+                      &m_width, &m_height,
+                      &border_width,
+                      &bpp))
+        return *this;
 
     m_depth = bpp;
 

src/FbTk/FbWindow.cc

@@ -582,10 +582,10 @@ void FbWindow::updateGeometry() {
 
     Window root;
     unsigned int border_width, depth;
-    XGetGeometry(display(), m_window, &root, &m_x, &m_y,
-                 (unsigned int *)&m_width, (unsigned int *)&m_height,
-                 &border_width, &depth);
-    m_depth = depth;
+    if (XGetGeometry(display(), m_window, &root, &m_x, &m_y,
+                     (unsigned int *)&m_width, (unsigned int *)&m_height,
+                     &border_width, &depth))
+        m_depth = depth;
 }
 
 void FbWindow::create(Window parent, int x, int y,

src/WinClient.cc

@@ -884,6 +884,31 @@ void WinClient::applySizeHints(int &width, int &height,
         *display_height = j;
 }
 
+// check if the given width and height satisfy the size hints
+bool WinClient::checkSizeHints(unsigned int width, unsigned int height) {
+    if (width < min_width || height < min_height)
+        return false;
+
+    if (width > max_width || height > max_height)
+        return false;
+
+    if ((width - base_width) % width_inc != 0)
+        return false;
+
+    if ((height - base_height) % height_inc != 0)
+        return false;
+
+    double ratio = (double)width / (double)height;
+
+    if (min_aspect_y > 0 && (double)min_aspect_x / (double)min_aspect_y > ratio)
+        return false;
+
+    if (max_aspect_y > 0 && (double)max_aspect_x / (double)max_aspect_y < ratio)
+        return false;
+
+    return true;
+}
+
 void WinClient::removeTransientFromWaitingList() {
 
     // holds the windows that dont have empty

src/WinClient.hh

@@ -89,7 +89,7 @@ public:
      */
     void applySizeHints(int &width, int &height, int *display_width = 0,
             int *display_height = 0, bool maximizing = false);
-
+    bool checkSizeHints(unsigned int width, unsigned int height);
 
     void setGroupLeftWindow(Window win);
 

src/Window.cc

@@ -2564,6 +2564,15 @@ void FluxboxWindow::configureRequestEvent(XConfigureRequestEvent &cr) {
     int cx = frame().x(), cy = frame().y(), ignore = 0;
     unsigned int cw = frame().width(), ch = frame().height();
 
+    // if this is not m_client and m_client has resize_inc, make sure the new
+    // size would be ok with m_client
+    if (client != m_client && cr.value_mask & CWWidth &&
+        cr.value_mask & CWHeight &&
+        !m_client->checkSizeHints(cr.width, cr.height)) {
+        sendConfigureNotify();
+        return;
+    }
+
     if (cr.value_mask & CWBorderWidth)
         client->old_bw = cr.border_width;