initial test

viewr/xdsample.py

@@ -26,7 +26,7 @@ import gi
 gi.require_version("Gtk", "3.0")
 
 import xdot.ui
-from gi.repository import Gio, Gtk
+from gi.repository import Gdk, Gio, GObject, Gtk
 
 
 def __icon_button__(icon_name: str) -> Gtk.Button:
@@ -37,6 +37,13 @@ def __icon_button__(icon_name: str) -> Gtk.Button:
     return button
 
 
+def get_handler_id(obj, signal_name):
+    signal_id, detail = GObject.signal_parse_name(signal_name, obj, True)
+    return GObject.signal_handler_find(
+        obj, GObject.SignalMatchType.ID, signal_id, detail, None, None, None
+    )
+
+
 class MyDotWindow(Gtk.Window):
     def __init__(self):
         super().__init__(title="Test")
@@ -71,10 +78,11 @@ class MyDotWindow(Gtk.Window):
         self.search_entry = Gtk.Entry()
         self.search_entry.connect("activate", self.search)
         self.search_entry.connect("changed", self.search)
+        self.search_entry.connect("key-press-event", self.search_key_pressed)
         self.search_entry.set_placeholder_text("Search...")
 
         box.add(self.search_entry)
-        button = __icon_button__("find")
+        button = __icon_button__("edit-find")
         button.connect("clicked", self.search)
         box.add(button)
 
@@ -83,6 +91,9 @@ class MyDotWindow(Gtk.Window):
         self.add(self.dot)
 
         self.set_focus(self.dot)
+        self.dot.connect("clicked", self.on_click)
+        self.dot.disconnect(get_handler_id(self.dot, "key-press-event"))
+        self.dot.connect("key-press-event", self.on_key_pressed)
 
     def set_dotcode(self, code):
         self.dot.set_dotcode(code)
@@ -110,11 +121,59 @@ class MyDotWindow(Gtk.Window):
         else:
             self.dot.set_highlight(None, search=True)
 
+    def search_key_pressed(self, _, event):
+        if event.keyval == 65307:
+            self.set_focus(self.dot)
+
+    def on_click(self, _, url, event):
+        print(url, event)
+        # center element
+        x, y = int(event.x), int(event.y)
+        jump = self.dot.get_jump(x, y)
+        if jump is not None:
+            self.dot.animate_to(jump.x, jump.y)
+
+    def on_key_pressed(self, _, event):
+        if event.keyval in (Gdk.KEY_f, Gdk.KEY_slash):
+            self.set_focus(self.search_entry)
+            return True
+        if event.keyval == Gdk.KEY_w:
+            self.dot.zoom_to_fit()
+            return True
+        if event.keyval == Gdk.KEY_plus:
+            self.dot.zoom_image(self.dot.zoom_ratio * 1.1)
+            return True
+        if event.keyval == Gdk.KEY_minus:
+            self.dot.zoom_image(self.dot.zoom_ratio / 1.1)
+            return True
+        if event.keyval == Gdk.KEY_equal:
+            self.dot.zoom_image(1.0)
+            return True
+        if event.keyval == Gdk.KEY_Left:
+            self.dot.x -= self.dot.POS_INCREMENT / self.dot.zoom_ratio
+            self.dot.queue_draw()
+            return True
+        if event.keyval == Gdk.KEY_Right:
+            self.dot.x += self.dot.POS_INCREMENT / self.dot.zoom_ratio
+            self.dot.queue_draw()
+            return True
+        if event.keyval == Gdk.KEY_Up:
+            self.dot.y -= self.dot.POS_INCREMENT / self.dot.zoom_ratio
+            self.dot.queue_draw()
+            return True
+        if event.keyval == Gdk.KEY_Down:
+            self.dot.y += self.dot.POS_INCREMENT / self.dot.zoom_ratio
+            self.dot.queue_draw()
+            return True
+
 
 dotcode = b"""
 digraph G {
+  node [fontname="Hack", shape=rect]
   Hello [URL="http://en.wikipedia.org/wiki/Hello"]
-  World [URL="http://en.wikipedia.org/wiki/World"]
+  World [URL="World,Test
+            layout.set_attributes(attrs)"]
+  Test
     Hello -> World
 }
 """