| author | Radek Brich <radek.brich@devl.cz> |
| Wed, 02 Jan 2013 11:48:36 +0100 | |
| changeset 44 | d77f1ae3786c |
| parent 41 | 37b7dfc3eae6 |
| child 45 | 43b2279b06e1 |
| permissions | -rw-r--r-- |
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
1 |
# -*- coding: utf-8 -*- |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
2 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
3 |
from tuikit.container import Container |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
4 |
from tuikit.scrollbar import VScrollbar |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
5 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
6 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
7 |
class ScrollView(Container): |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
8 |
"""Scrolling view |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
9 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
10 |
Shows scrollbars when needed. |
|
44
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
11 |
Scrolling area is determined according to child widget's size request. |
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
12 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
13 |
""" |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
14 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
15 |
def __init__(self, width=20, height=20): |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
16 |
Container.__init__(self, width, height) |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
17 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
18 |
self.vscroll = VScrollbar(height) |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
19 |
self.vscroll.connect('change', self._on_vscroll_change)
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
20 |
self.vscroll.allow_layout = False |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
21 |
self.add(self.vscroll) |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
22 |
|
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
23 |
def add(self, widget, **kwargs): |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
24 |
super().add(widget, **kwargs) |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
25 |
if widget != self.vscroll: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
26 |
widget.connect('sizereq', self._on_child_sizereq)
|
|
44
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
27 |
widget.connect('spotmove', self._on_child_spotmove)
|
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
28 |
|
|
41
37b7dfc3eae6
Update Emitter: All event handlers now have exactly one argument: object inherited from Event class, which carries any data.
Radek Brich <radek.brich@devl.cz>
parents:
40
diff
changeset
|
29 |
def _handle_resize(self, ev): |
|
37b7dfc3eae6
Update Emitter: All event handlers now have exactly one argument: object inherited from Event class, which carries any data.
Radek Brich <radek.brich@devl.cz>
parents:
40
diff
changeset
|
30 |
super()._handle_resize(ev) |
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
31 |
self.vscroll.x = self.size.w - 1 |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
32 |
self.vscroll.height = self.height |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
33 |
self._update_vscroll_max() |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
34 |
|
|
41
37b7dfc3eae6
Update Emitter: All event handlers now have exactly one argument: object inherited from Event class, which carries any data.
Radek Brich <radek.brich@devl.cz>
parents:
40
diff
changeset
|
35 |
def _on_vscroll_change(self, ev): |
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
36 |
self.offset.y = - self.vscroll.pos |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
37 |
|
|
41
37b7dfc3eae6
Update Emitter: All event handlers now have exactly one argument: object inherited from Event class, which carries any data.
Radek Brich <radek.brich@devl.cz>
parents:
40
diff
changeset
|
38 |
def _on_child_sizereq(self, ev): |
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
39 |
self._update_vscroll_max() |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
40 |
|
|
44
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
41 |
def _on_child_spotmove(self, ev): |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
42 |
child = ev.originator |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
43 |
spot = child.y + child.spot.y |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
44 |
if spot < self.vscroll.pos: |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
45 |
self.vscroll.pos = spot |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
46 |
if spot > (self.size.h - 1) + self.vscroll.pos: |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
47 |
self.vscroll.pos = spot - (self.size.h - 1) |
|
d77f1ae3786c
Add Widget.spot property. TreeView: move spot with cursor node. ScrollView: scroll when spot moves.
Radek Brich <radek.brich@devl.cz>
parents:
41
diff
changeset
|
48 |
|
|
40
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
49 |
def _update_vscroll_max(self): |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
50 |
max_height = 0 |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
51 |
for child in self.children: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
52 |
if child == self.vscroll: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
53 |
continue |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
54 |
child_height = child.x + child.sizereq.h |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
55 |
if child_height > max_height: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
56 |
max_height = child_height |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
57 |
if max_height < self.size.h: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
58 |
self.vscroll.hide() |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
59 |
else: |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
60 |
self.vscroll.max = max_height - self.size.h |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
61 |
self.vscroll.show() |
|
5faa38c10b67
Add ScrollView widget. Update Emitter, rename "on_event" methods to "_handle_event". Update VScrollbar, Layout.
Radek Brich <radek.brich@devl.cz>
parents:
diff
changeset
|
62 |