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authorTerry Jan Reedy <tjreedy@udel.edu>2016-05-22 23:10:31 (GMT)
committerTerry Jan Reedy <tjreedy@udel.edu>2016-05-22 23:10:31 (GMT)
commit0d9220e162f1e5f8caa3d7ebaa54665776d361a1 (patch)
treea4fa9f7cafdfc93fde86b8ffd6088d739bb93e01 /Lib/idlelib/tooltip.py
parentdc4f7c09cc934524a763498250e30123a0d9d2c5 (diff)
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Issue #24225: Rename many idlelib/*.py and idlelib/idle_test/test_*.py files.
Diffstat (limited to 'Lib/idlelib/tooltip.py')
-rw-r--r--Lib/idlelib/tooltip.py97
1 files changed, 97 insertions, 0 deletions
diff --git a/Lib/idlelib/tooltip.py b/Lib/idlelib/tooltip.py
new file mode 100644
index 0000000..964107e
--- /dev/null
+++ b/Lib/idlelib/tooltip.py
@@ -0,0 +1,97 @@
+# general purpose 'tooltip' routines - currently unused in idlefork
+# (although the 'calltips' extension is partly based on this code)
+# may be useful for some purposes in (or almost in ;) the current project scope
+# Ideas gleaned from PySol
+
+from tkinter import *
+
+class ToolTipBase:
+
+ def __init__(self, button):
+ self.button = button
+ self.tipwindow = None
+ self.id = None
+ self.x = self.y = 0
+ self._id1 = self.button.bind("<Enter>", self.enter)
+ self._id2 = self.button.bind("<Leave>", self.leave)
+ self._id3 = self.button.bind("<ButtonPress>", self.leave)
+
+ def enter(self, event=None):
+ self.schedule()
+
+ def leave(self, event=None):
+ self.unschedule()
+ self.hidetip()
+
+ def schedule(self):
+ self.unschedule()
+ self.id = self.button.after(1500, self.showtip)
+
+ def unschedule(self):
+ id = self.id
+ self.id = None
+ if id:
+ self.button.after_cancel(id)
+
+ def showtip(self):
+ if self.tipwindow:
+ return
+ # The tip window must be completely outside the button;
+ # otherwise when the mouse enters the tip window we get
+ # a leave event and it disappears, and then we get an enter
+ # event and it reappears, and so on forever :-(
+ x = self.button.winfo_rootx() + 20
+ y = self.button.winfo_rooty() + self.button.winfo_height() + 1
+ self.tipwindow = tw = Toplevel(self.button)
+ tw.wm_overrideredirect(1)
+ tw.wm_geometry("+%d+%d" % (x, y))
+ self.showcontents()
+
+ def showcontents(self, text="Your text here"):
+ # Override this in derived class
+ label = Label(self.tipwindow, text=text, justify=LEFT,
+ background="#ffffe0", relief=SOLID, borderwidth=1)
+ label.pack()
+
+ def hidetip(self):
+ tw = self.tipwindow
+ self.tipwindow = None
+ if tw:
+ tw.destroy()
+
+class ToolTip(ToolTipBase):
+ def __init__(self, button, text):
+ ToolTipBase.__init__(self, button)
+ self.text = text
+ def showcontents(self):
+ ToolTipBase.showcontents(self, self.text)
+
+class ListboxToolTip(ToolTipBase):
+ def __init__(self, button, items):
+ ToolTipBase.__init__(self, button)
+ self.items = items
+ def showcontents(self):
+ listbox = Listbox(self.tipwindow, background="#ffffe0")
+ listbox.pack()
+ for item in self.items:
+ listbox.insert(END, item)
+
+def _tooltip(parent):
+ root = Tk()
+ root.title("Test tooltip")
+ width, height, x, y = list(map(int, re.split('[x+]', parent.geometry())))
+ root.geometry("+%d+%d"%(x, y + 150))
+ label = Label(root, text="Place your mouse over buttons")
+ label.pack()
+ button1 = Button(root, text="Button 1")
+ button2 = Button(root, text="Button 2")
+ button1.pack()
+ button2.pack()
+ ToolTip(button1, "This is tooltip text for button1.")
+ ListboxToolTip(button2, ["This is","multiple line",
+ "tooltip text","for button2"])
+ root.mainloop()
+
+if __name__ == '__main__':
+ from idlelib.idle_test.htest import run
+ run(_tooltip)