Added menu highlight/normal switch. Fixed dialog handling. Extended simple application.

1 files changed, 85 insertions, 0 deletions

diff --git a/simple.py b/simple.py
new file mode 100644
index 0000000..275ef8c
--- /dev/null
+++ b/simple.py
@@ -0,0 +1,85 @@
+import gem
+import gem.vdi
+
+# Taken from resource headers
+MENU = 0
+M_ABOUT = 7
+M_QUIT = 16
+ABOUT = 1
+B_ABOUT_OK = 1
+
+def redraw(window):
+
+    window.begin_update()
+    vh = window.graphics_handle()
+    gem.vdi.vsf_color(vh,0)
+    
+    for r in window.get_invalid_rectangles():
+        todraw = window.intersect_work_area(r)
+        if todraw is not None:
+            gem.vdi.vs_clip(vh, True, todraw)
+            gem.vdi.bar(vh,todraw)
+            gem.vdi.vs_clip(vh, False, todraw)
+
+    window.end_update()
+
+class AppMessageEvent(gem.MessageEvent):
+    def __init__(self,app):
+        gem.MessageEvent.__init__(self)
+        
+        self.app = app
+        self.window = app.windows[0]
+    
+    def handle_menu(self, item, title=None):
+        if item == M_QUIT:
+            self.app.send_message((gem.WM_CLOSED, 0, 0, self.window.id))
+            
+        elif item == M_ABOUT:
+            dlg = self.app.get_resource_address(gem.R_TREE,ABOUT)
+            self.app.draw_tree(dlg,2)
+            self.app.form_do(dlg)
+        
+        if title is not None:
+            self.app.set_menu_state(title)
+    
+    def process(self):
+        
+        # First call the super's process()
+        gem.MessageEvent.process(self)
+        
+        if self.message == gem.WM_CLOSED:
+            self.app.event_processing = False
+        
+        elif self.message == gem.WM_TOPPED:
+            self.window.top()
+            
+        elif self.message == gem.WM_MOVED or self.message == gem.WM_SIZED:
+            rect = (self.get_word(4),self.get_word(5),self.get_word(6),self.get_word(7))
+            self.window.resize(rect)
+            
+        elif self.message == gem.WM_REDRAW:
+            redraw(self.window)
+        
+        # Menu handling
+        elif self.message == gem.MN_SELECTED:
+            self.handle_menu(self.get_word(4),title=self.get_word(3))
+
+def start_app():
+
+    app = gem.Application()
+    
+    app.load_resource("simple.rsc")
+    
+    app.set_menu(MENU)
+
+    w = app.new_window((60,60,500,300),'Awesome!')
+    
+    app.message_event = AppMessageEvent(app)
+    
+    app.event_loop()
+    
+    app.destroy()
+    
+
+if __name__ == "__main__":
+    start_app()
\ No newline at end of file