You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
236 lines
8.7 KiB
236 lines
8.7 KiB
#!/usr/bin/env python3 |
|
|
|
# MIT License |
|
# |
|
# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com> |
|
# |
|
# Permission is hereby granted, free of charge, to any person obtaining a copy |
|
# of this software and associated documentation files (the "Software"), to deal |
|
# in the Software without restriction, including without limitation the rights |
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
# copies of the Software, and to permit persons to whom the Software is |
|
# furnished to do so, subject to the following conditions: |
|
# |
|
# The above copyright notice and this permission notice shall be included in all |
|
# copies or substantial portions of the Software. |
|
# |
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|
# SOFTWARE. |
|
|
|
from TermTk.TTkCore.cfg import TTkCfg |
|
from TermTk.TTkCore.constant import TTkK |
|
from TermTk.TTkCore.log import TTkLog |
|
from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal |
|
from TermTk.TTkCore.color import TTkColor |
|
from TermTk.TTkWidgets.widget import TTkWidget |
|
from TermTk.TTkWidgets.label import TTkLabel |
|
from TermTk.TTkAbstract.abstractscrollview import TTkAbstractScrollView |
|
|
|
class TTkAbstractListItem(TTkLabel): |
|
__slots__ = ('_pressed', '_selected', '_highlighted', 'listItemClicked') |
|
def __init__(self, *args, **kwargs): |
|
TTkLabel.__init__(self, *args, **kwargs) |
|
self._name = kwargs.get('name' , 'TTkAbstractListItem' ) |
|
# Define Signals |
|
self.listItemClicked = pyTTkSignal(TTkAbstractListItem) |
|
self._selected = False |
|
self._pressed = False |
|
self._highlighted = False |
|
self.setFocusPolicy(TTkK.ClickFocus) |
|
|
|
def _updateColor(self): |
|
if self._highlighted: |
|
if self._selected: |
|
self.color = TTkCfg.theme.listColorHighlighted + TTkColor.UNDERLINE |
|
else: |
|
self.color = TTkCfg.theme.listColorHighlighted |
|
elif self._selected: |
|
self.color = TTkCfg.theme.listColorSelected |
|
else: |
|
self.color = TTkCfg.theme.listColor |
|
|
|
def keyEvent(self, evt): |
|
return self.parentWidget().keyEvent(evt) |
|
|
|
def mousePressEvent(self, evt): |
|
self._pressed = True |
|
self.highlighted = True |
|
self.update() |
|
return True |
|
|
|
def mouseReleaseEvent(self, evt): |
|
self._pressed = False |
|
self.listItemClicked.emit(self) |
|
self.update() |
|
return True |
|
|
|
@property |
|
def selected(self): |
|
return self._selected |
|
|
|
@selected.setter |
|
def selected(self, selected): |
|
if self._selected != selected: |
|
self._selected = selected |
|
self._updateColor() |
|
|
|
@property |
|
def highlighted(self): |
|
return self._highlighted |
|
|
|
@highlighted.setter |
|
def highlighted(self, highlighted): |
|
if self._highlighted != highlighted: |
|
self._highlighted = highlighted |
|
self._updateColor() |
|
|
|
|
|
class TTkListWidget(TTkAbstractScrollView): |
|
__slots__ = ('itemClicked', 'textClicked', '_color', '_selectedColor', '_selectedItems', '_selectionMode', '_highlighted', '_items') |
|
def __init__(self, *args, **kwargs): |
|
# Default Class Specific Values |
|
self._selectionMode = kwargs.get("selectionMode", TTkK.SingleSelection) |
|
self._selectedItems = [] |
|
self._items = [] |
|
self._highlighted = None |
|
self._color = TTkCfg.theme.listColor |
|
self._selectedColor = TTkCfg.theme.listColorSelected |
|
# Signals |
|
self.itemClicked = pyTTkSignal(TTkWidget) |
|
self.textClicked = pyTTkSignal(str) |
|
# Init Super |
|
TTkAbstractScrollView.__init__(self, *args, **kwargs) |
|
self._name = kwargs.get('name' , 'TTkListWidget' ) |
|
self.viewChanged.connect(self._viewChangedHandler) |
|
self.setFocusPolicy(TTkK.ClickFocus + TTkK.TabFocus) |
|
|
|
@pyTTkSlot() |
|
def _viewChangedHandler(self): |
|
x,y = self.getViewOffsets() |
|
self.layout().groupMoveTo(-x,-y) |
|
|
|
@pyTTkSlot(TTkAbstractListItem) |
|
def _labelSelectedHandler(self, label): |
|
if self._selectionMode == TTkK.SingleSelection: |
|
for item in self._selectedItems: |
|
item.selected = False |
|
item.highlighted = False |
|
self._selectedItems = [label] |
|
label.selected = True |
|
elif self._selectionMode == TTkK.MultiSelection: |
|
for item in self._selectedItems: |
|
item.highlighted = False |
|
label.selected = not label.selected |
|
if label.selected: |
|
self._selectedItems.append(label) |
|
else: |
|
self._selectedItems.remove(label) |
|
if self._highlighted: |
|
self._highlighted.highlighted = False |
|
label.highlighted = True |
|
self._highlighted = label |
|
self.setFocus() |
|
self.textClicked.emit(label.text) |
|
|
|
def setSelectionMode(self, mode): |
|
self._selectionMode = mode |
|
|
|
def selectedLabels(self): |
|
return [i.text for i in self._selectedItems] |
|
|
|
def resizeEvent(self, w, h): |
|
maxw = 0 |
|
for item in self.layout().children(): |
|
maxw = max(maxw,item.minimumWidth()) |
|
maxw = max(self.width(),maxw) |
|
for item in self.layout().children(): |
|
x,y,_,h = item.geometry() |
|
item.setGeometry(x,y,maxw,h) |
|
self.viewChanged.emit() |
|
|
|
def viewFullAreaSize(self) -> (int, int): |
|
_,_,w,h = self.layout().fullWidgetAreaGeometry() |
|
return w , h |
|
|
|
def viewDisplayedSize(self) -> (int, int): |
|
return self.size() |
|
|
|
def addItem(self, item): |
|
if isinstance(item, str): |
|
label = TTkAbstractListItem(text=item, width=max(len(item),self.width())) |
|
label.listItemClicked.connect(self._labelSelectedHandler) |
|
return self.addItem(label) |
|
self._items.append(item) |
|
_,y,_,h = self.layout().fullWidgetAreaGeometry() |
|
self.addWidget(item) |
|
item.move(0,y+h) |
|
_,_,fw,_ = self.layout().fullWidgetAreaGeometry() |
|
w = self.width() |
|
for item in self.layout().children(): |
|
x,y,_,h = item.geometry() |
|
item.setGeometry(x,y,max(w-1,fw),h) |
|
self.viewChanged.emit() |
|
|
|
def _moveToHighlighted(self): |
|
index = self._items.index(self._highlighted) |
|
h = self.height() |
|
offx,offy = self.getViewOffsets() |
|
if index >= h+offy-1: |
|
TTkLog.debug(f"{index} {h} {offy}") |
|
self.viewMoveTo(offx, index-h+1) |
|
elif index <= offy: |
|
self.viewMoveTo(offx, index) |
|
|
|
def keyEvent(self, evt): |
|
if not self._highlighted: return False |
|
if ( evt.type == TTkK.Character and evt.key==" " ) or \ |
|
( evt.type == TTkK.SpecialKey and evt.key == TTkK.Key_Enter ): |
|
if self._highlighted: |
|
# TTkLog.debug(self._highlighted) |
|
self._highlighted.listItemClicked.emit(self._highlighted) |
|
return True |
|
elif evt.type == TTkK.SpecialKey: |
|
if evt.key == TTkK.Key_Tab: |
|
return False |
|
index = self._items.index(self._highlighted) |
|
offx,offy = self.getViewOffsets() |
|
h = self.height() |
|
if evt.key == TTkK.Key_Up: |
|
index = max(0, index-1) |
|
elif evt.key == TTkK.Key_Down: |
|
index = min(len(self._items)-1, index+1) |
|
elif evt.key == TTkK.Key_PageUp: |
|
index = max(0, index-h) |
|
elif evt.key == TTkK.Key_PageDown: |
|
index = min(len(self._items)-1, index+h) |
|
elif evt.key == TTkK.Key_Right: |
|
self.viewMoveTo(offx+1, offy) |
|
elif evt.key == TTkK.Key_Left: |
|
self.viewMoveTo(offx-1, offy) |
|
elif evt.key == TTkK.Key_Home: |
|
self.viewMoveTo(0, offy) |
|
elif evt.key == TTkK.Key_End: |
|
self.viewMoveTo(0x10000, offy) |
|
|
|
self._highlighted.highlighted = False |
|
self._highlighted = self._items[index] |
|
self._highlighted.highlighted = True |
|
self._moveToHighlighted() |
|
return True |
|
return False |
|
|
|
def focusInEvent(self): |
|
if not self._items: return |
|
if not self._highlighted: |
|
self._highlighted = self._items[0] |
|
self._highlighted.highlighted=True |
|
self._moveToHighlighted() |
|
|
|
def focusOutEvent(self): |
|
if self._highlighted: |
|
self._highlighted.highlighted=False |