From 80a8703272f3b7c872279634add72218209ac64c Mon Sep 17 00:00:00 2001
From: fluxgen <fluxgen>
Date: Sat, 15 Feb 2003 01:48:16 +0000
Subject: added theme observer

---
 src/FbTk/Menu.cc | 19 +++++++++++++++----
 src/FbTk/Menu.hh | 16 ++++++++++++++--
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/src/FbTk/Menu.cc b/src/FbTk/Menu.cc
index b727588..d0267cb 100644
--- a/src/FbTk/Menu.cc
+++ b/src/FbTk/Menu.cc
@@ -22,7 +22,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-// $Id: Menu.cc,v 1.8 2003/02/03 13:41:19 fluxgen Exp $
+// $Id: Menu.cc,v 1.9 2003/02/15 01:48:16 fluxgen Exp $
 
 //use GNU extensions
 #ifndef	 _GNU_SOURCE
@@ -60,7 +60,11 @@ Menu::Menu(MenuTheme &tm, int screen_num, ImageControl &imgctrl):
     m_screen_width(DisplayWidth(m_display, screen_num)),
     m_screen_height(DisplayHeight(m_display, screen_num)),
     m_alignment(ALIGNDONTCARE),
-    m_border_width(0) {
+    m_border_width(0),
+    m_themeobserver(*this) {
+
+    // make sure we get updated when the theme is reloaded
+    tm.addListener(m_themeobserver);
 
     title_vis =
         movable =
@@ -105,7 +109,8 @@ Menu::Menu(MenuTheme &tm, int screen_num, ImageControl &imgctrl):
     unsigned long attrib_mask = CWOverrideRedirect | CWEventMask;
     XSetWindowAttributes attrib;
     attrib.override_redirect = True;
-    attrib.event_mask = ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | KeyPressMask | ExposureMask;
+    attrib.event_mask = ButtonPressMask | ButtonReleaseMask | 
+        ButtonMotionMask | KeyPressMask | ExposureMask;
 
     //create menu window
     menu.window = XCreateWindow(m_display, RootWindow(m_display, screen_num), 
@@ -917,10 +922,16 @@ void Menu::exposeEvent(XExposeEvent &ee) {
     if (ee.window == menu.title) {
         redrawTitle();
     } else if (ee.window == menu.frame) {
+        if (menuitems.size() == 0)
+            return;
+
         // this is a compilicated algorithm... lets do it step by step...
         // first... we see in which sub level the expose starts... and how many
         // items down in that sublevel
-
+        if (menu.item_w == 0)
+            menu.item_w = 1;
+        if (menu.item_h == 0)
+            menu.item_h = 1;
         unsigned int sbl = (ee.x / menu.item_w), id = (ee.y / menu.item_h),
             // next... figure out how many sublevels over the redraw spans
             sbl_d = ((ee.x + ee.width) / menu.item_w),
diff --git a/src/FbTk/Menu.hh b/src/FbTk/Menu.hh
index 1360528..1ae9b8f 100644
--- a/src/FbTk/Menu.hh
+++ b/src/FbTk/Menu.hh
@@ -22,7 +22,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-// $Id: Menu.hh,v 1.7 2003/02/03 13:40:52 fluxgen Exp $
+// $Id: Menu.hh,v 1.8 2003/02/15 01:47:43 fluxgen Exp $
 
 #ifndef	 FBTK_MENU_HH
 #define	 FBTK_MENU_HH
@@ -35,6 +35,7 @@
 #include "EventHandler.hh"
 #include "RefCount.hh"
 #include "Command.hh"
+#include "Observer.hh"
 #include "XLayerItem.hh"
 
 namespace FbTk {
@@ -151,7 +152,7 @@ protected:
     inline Menu *parent() { return m_parent; }
     inline const Menu *parent() const { return m_parent; }
 
-private:
+private: 
     typedef std::vector<MenuItem *> Menuitems;
     const MenuTheme &m_theme;
     Display *m_display;
@@ -178,6 +179,17 @@ private:
             bevel_h;
     } menu;
 
+    class ThemeObserver:public Observer {
+    public:
+        ThemeObserver(FbTk::Menu &menu):m_menu(menu) { }
+        void update(FbTk::Subject *subj) {
+            m_menu.reconfigure();
+        }
+    private:
+        Menu &m_menu;
+    };
+
+    ThemeObserver m_themeobserver;
 };
 
 }; // end namespace FbTk
-- 
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