From 08c786c7b182cbefb208375697988b11709c158d Mon Sep 17 00:00:00 2001
From: Thomas Leonard <talex5@gmail.com>
Date: Wed, 10 Aug 2005 10:54:03 +0000
Subject: [PATCH] Holding the pointer over an interface in the main window
 shows a tooltip

containing its URL and the start of its description.

git-svn-id: file:///home/talex/Backups/sf.net/Subversion/zero-install/injector/injector-gui@411 9f8c893c-44ee-0310-b757-c8ca8341c71e
---
 iface_browser.py | 30 ++++++++++++++++++++++
 treetips.py      | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 108 insertions(+)
 create mode 100644 treetips.py

diff --git a/iface_browser.py b/iface_browser.py
index 6486477..5ff2052 100644
--- a/iface_browser.py
+++ b/iface_browser.py
@@ -2,8 +2,24 @@ import gtk
 
 from zeroinstall.injector.model import Interface
 import properties
+from treetips import TreeTips
 from gui import policy, pretty_size
 
+class InterfaceTips(TreeTips):
+	def get_tooltip_text(self, interface):
+		assert interface
+		text = "(%s)\n" % interface.uri
+		if interface.description:
+			max_lines = 4
+			lines = filter(None, interface.description.split('\n'))
+			if len(lines) > max_lines:
+				lines = lines[:max_lines] + ['...']
+			text += '\n'.join(lines)
+			
+		return text
+
+tips = InterfaceTips()
+
 class InterfaceBrowser(gtk.ScrolledWindow):
 	model = None
 	root = None
@@ -54,6 +70,20 @@ class InterfaceBrowser(gtk.ScrolledWindow):
 
 		selection = tree_view.get_selection()
 
+		def motion(tree_view, ev):
+			if ev.window is not tree_view.get_bin_window():
+				return False
+			pos = tree_view.get_path_at_pos(int(ev.x), int(ev.y))
+			if pos:
+				path = pos[0]
+				row = self.model[path]
+				tips.prime(tree_view, row[InterfaceBrowser.INTERFACE])
+			else:
+				tips.hide()
+
+		tree_view.connect('motion-notify-event', motion)
+		tree_view.connect('leave-notify-event', lambda tv, ev: tips.hide())
+
 		def sel_changed(sel):
 			store, iter = sel.get_selected()
 			self.edit_properties.set_property('sensitive', iter != None)
diff --git a/treetips.py b/treetips.py
new file mode 100644
index 0000000..86e6c53
--- /dev/null
+++ b/treetips.py
@@ -0,0 +1,78 @@
+import time, gobject, gtk
+
+class TreeTips:
+	timeout = None
+	widget = None
+	item = None
+	time = 0
+
+	def show(self, parent):
+		if self.timeout:
+			gobject.source_remove(self.timeout)
+			self.timeout = None
+
+		if self.widget:
+			self.widget.destroy()
+			self.widget = None
+
+		if self.item is None:
+			return
+
+		self.widget = gtk.Window(gtk.WINDOW_POPUP)
+		self.widget.set_app_paintable(True)
+		self.widget.set_name('gtk-tooltips')
+
+		self.widget.connect('expose-event', self.tooltip_draw)
+
+		label = gtk.Label(self.get_tooltip_text(self.item))
+		label.set_padding(4, 2)
+		self.widget.add(label)
+		label.show()
+
+		w, h = self.widget.size_request()
+		screen = parent.get_screen()
+		root = screen.get_root_window()
+		px, py, mask = gtk.gdk.Window.get_pointer(root)
+
+		m = gtk.gdk.screen_get_default().get_monitor_at_point(px, py)
+		
+		x = px - w / 2
+		y = py + 12
+
+		# Test if pointer is over the tooltip window
+		if py >= y and py <= y + h:
+			y = py - h - 2
+		self.widget.move(x, y)
+		self.widget.show()
+
+		self.widget.connect('destroy', self.tooltip_destroyed)
+		self.time = time.time()
+	
+	def prime(self, parent, item):
+		if item is self.item:
+			return
+
+		self.hide()
+		assert self.timeout is None
+		self.item = item
+	
+		now = time.time()
+		if now - self.time > 2:
+			delay = 1000
+		else:
+			delay = 100
+
+		self.timeout = gobject.timeout_add(delay, lambda: self.show(parent))
+
+	def tooltip_draw(self, widget, ev):
+		widget.window.draw_rectangle(widget.style.fg_gc[widget.state],
+					False, 0, 0,
+					widget.allocation.width - 1,
+					widget.allocation.height - 1)
+
+	def tooltip_destroyed(self, widget):
+		pass
+	
+	def hide(self):
+		self.item = None
+		self.show(None)
-- 
2.11.4.GIT