TTkContainer

class TTkContainer(*, layout: TTkLayout = None, padding: TTkPadding = None, paddingTop: int = 0, paddingBottom: int = 0, paddingLeft: int = 0, paddingRight: int = 0, forwardStyle: bool = False, **kwargs)

Bases: TTkWidget

TTkContainer include the layout management through TTkLayout or one of its implementations.

It is the base class of all the composite widgets like TTkSpinBox where a TTkLineEdit is placed and shown when edited, or in the TTkFrame and its extension TTkWindow where the TTkLayout is used for the child widgets placements or the TTkMenuBarLayout, the main root widget TTk inherit the layout capabilities of TTkContainer for any widget placed in the pyTermTk app.

Main widgets subclassing TTkContainer:

1. TTk

2. TTkFrame

3. TTkWindow

4. TTkSplitter

5. TTkAppTemplate

6. TTkTabWidget

7. TTkTreeWidget

More info and examples are available in the Tutorial

TTkContainer Layout topology:

Terminal area (i.e. XTerm) = TTk
┌────────────────────────────────────────────┐
│                                            │
│   TTkContainer                             │
│       < --------  width  ----->            │
│ (x,y)╔═════════════════════════╗  ^        │
│      ║      padt (Top Padding) ║  |        │
│      ║    ┌───────────────┐    ║  | height │
│      ║padl│ Layout        │padr║  |        │
│      ║    └───────────────┘    ║  |        │
│      ║      padb (Bottom Pad.) ║  |        │
│      ╚═════════════════════════╝  v        │
└────────────────────────────────────────────┘

Example:

from TermTk import TTk, TTkButton, TTkHBoxLayout

# The class TTk, that could be referred as the terminal layout, is a subclass of TTkContainer
root = TTk( layout=TTkHBoxLayout(), padding=(1,2,4,8))

TTkButton(parent=root, border=True,  text="Btn 1!")
TTkButton(parent=root, border=True,  text="Btn 2!")
TTkButton(parent=root, border=True,  text="Btn 3!")
TTkButton(parent=root, border=True,  text="Btn 4!")

root.mainloop()

Parameters:

• layout (TermTk.TTkLayouts) – the layout of this widget, optional, defaults to TTkLayout

• padding (TTkPadding) – the padding (top, bottom, left, right) of the widget, defaults to (0,0,0,0)

• paddingTop (int) – the Top padding, override Top padding if already defined, optional, default=0 if padding is not defined

• paddingBottom (int) – the Bottom padding, override Bottom padding if already defined, optional, default=0 if padding is not defined

• paddingLeft (int) – the Left padding, override Left padding if already defined, optional, default=0 if padding is not defined

• paddingRight (int) – the Right padding, override Right padding if already defined, optional, default=0 if padding is not defined

• forwardStyle (bool) – [Experimental] any change of style will reflect the children, defaults to False

TTkWidget’s inherited init params:

Parameters:

• name (str, optional) – the name of the widget, defaults to “”

• parent (TTkWidget, optional) – the parent widget, defaults to None

• x (int, optional) – the x position, defaults to 0

• y (int, optional) – the y position, defaults to 0

• pos ((int,int), optional) – the [x,y] position (override the previously defined x, y), defaults to (x,y)

• width (int, optional) – the width of the widget, defaults to 0

• height (int, optional) – the height of the widget, defaults to 0

• size ((int,int), optional) – the size [width, height] of the widget (override the previously defined sizes), defaults to (width,height)

• maxWidth (int, optional) – the maxWidth of the widget, defaults to 0x10000

• maxHeight (int, optional) – the maxHeight of the widget, defaults to 0x10000

• maxSize ((int,int), optional) – the max [width,height] of the widget, optional, defaults to (maxWidth,maxHeight)

• minWidth (int, optional) – the minWidth of the widget, defaults to 0

• minHeight (int, optional) – the minHeight of the widget, defaults to 0

• minSize ((int,int), optional) – the minSize [width,height] of the widget, optional, defaults to (minWidth,minHeight)

• toolTip (TTkString, optional) – This property holds the widget’s tooltip, defaults to ‘’

• style (dict, optional) – this field hold the custom style to be used by this widget

• addStyle (dict, optional) – this field is required to override/merge the new style on top of the current one, useful if only few params need to be changed

• visible (bool, optional) – the visibility, optional, defaults to True

• enabled (bool, optional) – the ability to handle input events, optional, defaults to True

Signals

closed	This signal is emitted whenever the widget is closed
currentStyleChanged	This signal is emitted whenever the widget stye change
focusChanged	This signal is emitted whenever the focus status change i.e. with the setFocus() or clearFocus() methods.
sizeChanged	This signal is emitted whenever the widget size change

Slots

Slots Inherited from: TTkWidget

close()	Close (Destroy/Remove) the widget
hide()	hide the widget
lowerWidget()	Lower the Widget below its relatives
raiseWidget([raiseParent])	Raise the Widget above its relatives
setDisabled([disabled])	This property holds whether the widget is disnabled
setEnabled([enabled])	This property holds whether the widget is enabled
setFocus()	Focus the widget
setVisible(visible)	Set the visibility status of this widget
show()	show the widget
update([repaint, updateLayout, updateParent])	Notify the drawing routine that the widget changed and needs to draw its new content.

Members

closed: pyTTkSignal

This signal is emitted whenever the widget is closed

Parameters:

widget (TTkWidget) – the widget closed (=self)

currentStyleChanged: pyTTkSignal

This signal is emitted whenever the widget stye change

Parameters:

style (dict) – the new style applied

focusChanged: pyTTkSignal

This signal is emitted whenever the focus status change i.e. with the setFocus() or clearFocus() methods

Parameters:

status (bool) – the curent focus status

sizeChanged: pyTTkSignal

This signal is emitted whenever the widget size change

Parameters:

• width (int) – the new widget width

• height (int) – the new widget height

Methods

addWidget(widget: TTkWidget) → None

Warning

Method Deprecated,

use TTkContainer -> layout() -> TTkLayout.addWidget

i.e.

parentWidget.layout().addWidget(childWidget)

getPadding() → TTkPadding

Retrieve the TTkContainer’s paddings sizes as shown in Layout Topology

Returns:

TTkPadding the NamedTuple representing a 4 int values tuple (top,bottom,left,right)

layout() → TTkLayout

Get the Layout

Returns:

The Layout used

Return type:

TTkLayout or derived

removeWidget(widget: TTkWidget) → None

Warning

Method Deprecated,

use TTkContainer -> layout() -> TTkLayout.removeWidget

i.e.

parentWidget.layout().removeWidget(childWidget)

rootLayout() → TTkLayout

This is a root layout mainly used to place items that are not supposed to be inside the main layout (i.e. the menu elements)

Caution

Use this layout only if you know what you are doing

Returns:

:py:class:``TTkLayout`

setLayout(layout: TTkLayout) → None

Set the Layout used by this widget to place all the child widgets.

Parameters:

layout (TTkLayout)

setPadding(top: int, bottom: int, left: int, right: int) → None

Set the TTkContainer’s paddings sizes as shown in Layout Topology

Parameters:

• top (int) – top padding

• bottom (int) – bottom padding

• left (int) – left padding

• right (int) – right padding

Methods Inherited from: TTkWidget

clearFocus()	Remove the Focus state of this widget
close()	Close (Destroy/Remove) the widget
currentStyle()
disableWidgetCursor([disable])
enableWidgetCursor([enable])
focusInEvent()
focusOutEvent()
focusPolicy()
geometry()
getCanvas()
getPixmap()	Convenience function which return a pixmap representing the current widget status
getWidgetByName(name)	Return the widget from its name.
hasFocus()	This property holds the focus status of this widget
height()
hide()	hide the widget
isEnabled()	This property holds whether the widget is enabled
isEntered()
isVisible()	Retrieve the visibility status of this widget
isVisibleAndParent()
lowerWidget()	Lower the Widget below its relatives
maxDimension(orientation)
maximumHeight()
maximumSize()
maximumWidth()
mergeStyle(style)
minDimension(orientation)
minimumHeight()
minimumSize()
minimumWidth()
mouseEvent(evt)
move(x, y)	Move the widget
moveEvent(x, y)	Convenience function, Event Callback triggered after a successful move
name()
paintChildCanvas()
paintEvent(canvas)	Paint Event callback, this need to be overridden in the widget.
parentWidget()
pasteEvent(txt)	Callback triggered when a paste event is forwarded to this widget.
pos()
raiseWidget([raiseParent])	Raise the Widget above its relatives
resize(width, height)	Resize the widget
resizeEvent(width, height)	Convenience function, Event Callback triggered after a successful resize
setCurrentStyle(*args, **kwargs)
setDefaultSize(arg, width, height)
setDisabled([disabled])	This property holds whether the widget is disnabled
setEnabled([enabled])	This property holds whether the widget is enabled
setFocus()	Focus the widget
setFocusPolicy(policy)	This property holds the way the widget accepts keyboard focus
setGeometry(x, y, width, height)	Resize and move the widget
setMaximumHeight(maxh)
setMaximumSize(maxw, maxh)
setMaximumWidth(maxw)
setMinimumHeight(minh)
setMinimumSize(minw, minh)
setMinimumWidth(minw)
setName(name)	Set the name of this Instance
setParent(parent)
setStyle([style])
setToolTip(toolTip)
setVisible(visible)	Set the visibility status of this widget
setWidgetCursor([pos, type])
show()	show the widget
size()
style()
toolTip()
update([repaint, updateLayout, updateParent])	Notify the drawing routine that the widget changed and needs to draw its new content.
widgetItem()
width()
x()
y()

Methods Inherited from: TMouseEvents

enterEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse enter events for the widget.
leaveEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse leave events for the widget.
mouseDoubleClickEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse click events for the widget.
mouseDragEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse drag events for the widget.
mouseMoveEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse move events for the widget.
mousePressEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse press events for the widget.
mouseReleaseEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse release events for the widget.
mouseTapEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse click events for the widget.
wheelEvent(evt)	This event handler, can be reimplemented in a subclass to receive mouse wheel events for the widget.

Methods Inherited from: TKeyEvents

keyEvent(evt)

This event handler, can be reimplemented in a subclass to receive key events for the widget.

Methods Inherited from: TDragEvents

dragEnterEvent(evt)	This event handler, can be reimplemented in a subclass to receive drag events for the widget.
dragLeaveEvent(evt)	This event handler, can be reimplemented in a subclass to receive drag events for the widget.
dragMoveEvent(evt)	This event handler, can be reimplemented in a subclass to receive drag events for the widget.
dropEvent(evt)	This event handler, can be reimplemented in a subclass to receive drag events for the widget.

TTkContainer Attributes

classStyle