# 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.
__all__ = ['TTkSpinBox']
from TermTk.TTkCore.cfg import TTkCfg
from TermTk.TTkCore.color import TTkColor
from TermTk.TTkCore.constant import TTkK
from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
from TermTk.TTkLayouts import TTkGridLayout
from TermTk.TTkWidgets.container import TTkContainer
from TermTk.TTkWidgets.lineedit import TTkLineEdit
[docs]class TTkSpinBox(TTkContainer):
'''TTkSpinBox'''
classStyle = {
'default': {'color': TTkColor.RST},
'disabled': {'color': TTkColor.fg('#888888')},
'focus': {'color': TTkColor.fg("#dddd88")+TTkColor.bg("#000044")+TTkColor.BOLD},
}
__slots__= (
'_lineEdit', '_value', '_maximum', '_minimum',
'_mouseDelta', '_valueDelta', '_draggable',
# Signals
'valueChanged')
def __init__(self, *args, **kwargs):
# Signals
self.valueChanged=pyTTkSignal(int)
super().__init__(*args, **kwargs)
self._value = kwargs.get("value",0)
self._maximum = kwargs.get("maximum",99)
self._minimum = kwargs.get("minimum",0)
self.setLayout(TTkGridLayout())
self.setPadding(0,0,0,2)
self.setMinimumSize(4,1)
self._mouseDelta = 0
self._valueDelta = 0
self._draggable = False
self._lineEdit = TTkLineEdit(parent=self, text=str(self._value), inputType=TTkK.Input_Number, enabled=self.isEnabled())
self._lineEdit.keyEvent = self.keyEvent
self.setFocusPolicy(TTkK.ClickFocus)
self._lineEdit.textEdited.connect(self._textEdited)
[docs] def value(self):
'''value'''
return self._value
[docs] @pyTTkSlot(int)
def setValue(self, value):
'''setValue'''
value = min(value,self._maximum)
value = max(value,self._minimum)
if self._value == value: return
self._value = value
self._lineEdit.setText(str(self._value))
self.valueChanged.emit(value)
[docs] def minimum(self):
'''minimum'''
return self._minimum
[docs] @pyTTkSlot(int)
def setMinimum(self, minimum):
'''setMinimum'''
if self._minimum == minimum:
return
self._minimum = minimum
self.setValue(self._value)
[docs] def maximum(self):
'''maximum'''
return self._maximum
[docs] @pyTTkSlot(int)
def setMaximum(self, maximum):
'''setMaximum'''
if self._maximum == maximum:
return
self._maximum = maximum
self.setValue(self._value)
@pyTTkSlot(str)
def _textEdited(self, text):
self.setValue(int(str(text)))
self._lineEdit.setText(str(self._value))
[docs] def wheelEvent(self, evt):
if evt.evt == TTkK.WHEEL_Up:
self.setValue(self._value+1)
else:
self.setValue(self._value-1)
return True
[docs] def keyEvent(self, evt):
if evt.type == TTkK.SpecialKey:
if evt.key == TTkK.Key_Up:
self.setValue(self._value+1)
return True
elif evt.key == TTkK.Key_Down:
self.setValue(self._value-1)
return True
return TTkLineEdit.keyEvent(self._lineEdit, evt)
[docs] def mousePressEvent(self, evt):
x,y = evt.x, evt.y
w = self.width()
value = self._value
self._draggable = False
if x==w-2:
self._draggable = True
value += 1
if x==w-1:
self._draggable = True
value -= 1
self.setValue(value)
self._mouseDelta = y-x
self._valueDelta = self._value
return True
[docs] def mouseDragEvent(self, evt):
d = evt.y-evt.x
if self._draggable:
self.setValue(self._valueDelta + self._mouseDelta - d)
return True
[docs] def setEnabled(self, enabled=True):
self._lineEdit.setEnabled(enabled)
return super().setEnabled(enabled)
[docs] def paintEvent(self, canvas):
style = self.currentStyle()
color = style['color']
w = self.width()
canvas.drawChar(pos=(w-2,0),char="▲", color=color)
canvas.drawChar(pos=(w-1,0),char="▼", color=color)
def focusOutEvent(self):
self._draggable = False
self._lineEdit.focusOutEvent()
self._lineEdit.update()