UI_Lib  a1366e08a59cc549a65fa26081e6409aa12f26d5
This is a user interface library for graphical LCDs. It offers many different controls and indicators that can be nested depending on the element types.
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ContainerList Class Reference

Class for a container that is showing one item at a time and supports scrolling. More...

#include <ContainerList.h>

Inheritance diagram for ContainerList:
Container UIElement

Public Member Functions

 ContainerList (uint8_t maxNumItems=DEFAULT_MAX_CONTAINER_ITEMS, uint8_t scrollBarWidth=DEFAULT_CONTAINERLIST_SCROLLBAR_WIDTH, uint8_t scrollBarMargin=DEFAULT_CONTAINERLIST_SCROLLBAR_MARGIN, uint16_t locX=0, uint16_t locY=0, uint16_t width=0, uint16_t height=0)
 Constructor of the ContainerList.
 
virtual void Draw (bool redraw) override
 Method used for drawing of the ContainerList.
 
virtual bool KeyInput (Keys_t key) override
 Process the given key.
 
virtual bool TouchInput (uint16_t x, uint16_t y, TouchTypes touchType) override
 Process a touch input at the given point (x, y)
 
virtual void RecalculateDimensions () override
 Recalculate the Height and Width of the UIElement.
 
virtual void RecalculateLayout () override
 Recalculate the UIElement layout (containers update the X- and Y-Location of all their items, all other items can do other layout update stuff)
 
- Public Member Functions inherited from Container
 Container (uint8_t maxNumItems=DEFAULT_MAX_CONTAINER_ITEMS)
 Constructor of the Container.
 
 ~Container ()
 Destructor of the Container.
 
virtual void Draw ()
 Virtual method used for drawing of the container UIElement.
 
UIElementGetSelectedItem ()
 Get the selected item.
 
bool AddItem (UIElement *item)
 Add a new element to the container and activate it as active child.
 
void ClearAllItems ()
 Clear all items in the container.
 
bool NextItem ()
 Select the next item in the container.
 
bool PreviousItem ()
 Select the previous item in the container.
 
bool NextControlItem ()
 Select the next item in the container that is of UI_CONTROL type.
 
bool PreviousControlItem ()
 Select the previous item in the container that is of UI_CONTROL type.
 
void GetItemsBoundingBox (uint16_t *x, uint16_t *y, uint16_t *w, uint16_t *h)
 Get a bounding box around all items in the Container.
 
- Public Member Functions inherited from UIElement
 UIElement (UIElementType type)
 Constructor of the UIElement.
 
 UIElement (uint16_t locX, uint16_t locY, UIElementType type)
 Constructor of the UIElement.
 
bool HitTest (uint16_t x, uint16_t y)
 Check if the given point (x, y) is inside this UIElement.
 

Private Attributes

uint8_t _lastDrawnItemIndex
 Index of the last item.
 
uint8_t _scrollBarWidth
 Width in pixel of the scroll bar on the right side of the container.
 
uint8_t _scrollBarMargin
 Margin in pixel between the scroll bar frame and the container list outline.
 

Additional Inherited Members

- Public Attributes inherited from UIElement
UIElementType Type
 Element type (control, indicator, container)
 
uint16_t LocX
 X Location of the upper left corner of the UIElement.
 
uint16_t LocY
 Y Location of the upper left corner of the UIElement.
 
uint16_t Width
 Drawing width of the UIElement.
 
uint16_t Height
 Drawing height of the UIElement.
 
bool Visible
 The UIElement is only drawn if the visibility is set to true.
 
bool IsInEditMode
 Is the UIElement in edit mode?
 
UIElementParent
 Parent UIElement that this UIElement belongs to.
 
UIElementActiveChild
 Child element that is currently active (receiving all key inputs).
 
- Protected Attributes inherited from Container
uint8_t _maxNumItems
 Maximum number of items, each container can hold.
 
UIElement ** _items
 Array holding pointers to all UIElement that are items of the container.
 
uint8_t _numItems
 Number of items in the container (number of valid items in the _items array).
 
uint8_t _selectedItemIndex
 Index of the selected container item.
 
- Protected Attributes inherited from UIElement
bool _lastDrawnVisible
 The Visible value that was last drawn.
 

Detailed Description

Class for a container that is showing one item at a time and supports scrolling.

Constructor & Destructor Documentation

◆ ContainerList()

ContainerList::ContainerList ( uint8_t maxNumItems = DEFAULT_MAX_CONTAINER_ITEMS,
uint8_t scrollBarWidth = DEFAULT_CONTAINERLIST_SCROLLBAR_WIDTH,
uint8_t scrollBarMargin = DEFAULT_CONTAINERLIST_SCROLLBAR_MARGIN,
uint16_t locX = 0,
uint16_t locY = 0,
uint16_t width = 0,
uint16_t height = 0 )

Constructor of the ContainerList.

Parameters
maxNumItemsMaximum number of items, each container can hold. Lower this value if you don't need that much items to save memory.
scrollBarWidthWidth in pixel of the scroll bar on the right side of the container
scrollBarMarginMargin in pixel between the scroll bar frame and the container list outline
locXX Location of the upper left corner of the ContainerList
locYY Location of the upper left corner of the ContainerList
widthDrawing width of the ContainerList
heightDrawing height of the ContainerList

Member Function Documentation

◆ Draw()

void ContainerList::Draw ( bool redraw)
overridevirtual

Method used for drawing of the ContainerList.

Implements UIElement.

◆ KeyInput()

bool ContainerList::KeyInput ( Keys_t key)
overridevirtual

Process the given key.

If this element doesn't support the key type, the key is forwarded to the parent. This is done until the key is processed or the root of the visual tree is reached.

Parameters
keyKey that should be processed. Supported keys are: KEYUP, KEYDOWN
Returns
true if the key was processed; false if not.

Reimplemented from Container.

◆ RecalculateDimensions()

void ContainerList::RecalculateDimensions ( )
overridevirtual

Recalculate the Height and Width of the UIElement.

Implements UIElement.

◆ RecalculateLayout()

void ContainerList::RecalculateLayout ( )
overridevirtual

Recalculate the UIElement layout (containers update the X- and Y-Location of all their items, all other items can do other layout update stuff)

Reimplemented from UIElement.

◆ TouchInput()

bool ContainerList::TouchInput ( uint16_t x,
uint16_t y,
TouchTypes touchType )
overridevirtual

Process a touch input at the given point (x, y)

Parameters
xX-Coordinate of the touched point
yY-Coordinate of the touched point
touchTypeType of the touch
Returns
true if the touch was processed; false if not.

Reimplemented from UIElement.


The documentation for this class was generated from the following files: