ImageProgress
An image progress will show parts of an image as a progress indicator. The image can progress from the left, the right, the bottom or the top of the given area, and can visually be fixed with a larger and larger portion of the image showing, or it can be moved into view.
Inherits from: AbstractDirectionProgress, AbstractProgressIndicator, Container, Drawable
Public Functions
virtual bool | getAnchorAtZero() const |
Gets the current anchor at zero setting. | |
virtual BitmapId | getBitmap() const |
Gets the bitmap id of the current image. | |
ImageProgress() | |
virtual void | setAlpha(uint8_t newAlpha) |
Sets the opacity (alpha value). | |
virtual void | setAnchorAtZero(bool anchorAtZero) |
Sets anchor at zero. | |
virtual void | setBitmap(BitmapId bitmapId) |
Sets the bitmap id to use for progress. | |
virtual void | setProgressIndicatorPosition(int16_t x, int16_t y, int16_t width, int16_t height) |
Sets the position and dimensions of the actual progress indicator relative to the background image. | |
virtual void | setValue(int value) |
Sets the current value in the range (min..max) set by setRange(). | |
Protected Attributes
Container | container |
The container for the image to allow for anchored images. | |
bool | fixedPosition |
true if the image should not move during progress | |
TiledImage | image |
The image. | |
Additional inherited members
Public Types inherited from AbstractDirectionProgress
enum | DirectionType { RIGHT, LEFT, DOWN, UP } |
Values that represent directions. | |
Public Functions inherited from AbstractDirectionProgress
AbstractDirectionProgress() | |
virtual DirectionType | getDirection() const |
Gets the current direction for the progress indicator. | |
virtual void | setDirection(DirectionType direction) |
Sets a direction for the progress indicator. | |
Protected Attributes inherited from AbstractDirectionProgress
DirectionType | progressDirection |
The progress direction. | |
Public Functions inherited from AbstractProgressIndicator
AbstractProgressIndicator() | |
Initializes a new instance of the AbstractProgressIndicator class with a default range 0-100. | |
virtual uint8_t | getAlpha() const |
Gets the current alpha value of the widget. | |
virtual uint16_t | getProgress(uint16_t range =100) const |
Gets the current progress based on the range set by setRange() and the value set by setValue(). | |
virtual int16_t | getProgressIndicatorHeight() const |
Gets progress indicator height. | |
virtual int16_t | getProgressIndicatorWidth() const |
Gets progress indicator width. | |
virtual int16_t | getProgressIndicatorX() const |
Gets progress indicator x coordinate. | |
virtual int16_t | getProgressIndicatorY() const |
Gets progress indicator y coordinate. | |
virtual void | getRange(int & min, int & max) const |
Gets the range set by setRange(). | |
virtual void | getRange(int & min, int & max, uint16_t & steps) const |
Gets the range set by setRange(). | |
virtual void | getRange(int & min, int & max, uint16_t & steps, uint16_t & minStep) const |
Gets the range set by setRange(). | |
virtual int | getValue() const |
Gets the current value set by setValue(). | |
virtual void | handleTickEvent() |
Called periodically by the framework if the Drawable instance has subscribed to timer ticks. | |
virtual void | invalidateContent() const |
Tell the framework that the contents of the Drawable needs to be redrawn. | |
virtual void | setBackground(const Bitmap & bitmapBackground) |
Sets the background image. | |
virtual void | setEasingEquation(EasingEquation easingEquation) |
Sets easing equation to be used in updateValue. | |
virtual void | setRange(int min, int max, uint16_t steps =0, uint16_t minStep =0) |
Sets the range for the progress indicator. | |
void | setValueSetAction(GenericCallback< const AbstractProgressIndicator & > & callback) |
Sets callback that will be triggered every time a new value is assigned to the progress indicator. | |
void | setValueUpdatedAction(GenericCallback< const AbstractProgressIndicator & > & callback) |
Sets callback that will be triggered when updateValue has finished animating to the final value. | |
virtual void | updateValue(int value, uint16_t duration) |
Update the current value in the range (min..max) set by setRange(). | |
Protected Attributes inherited from AbstractProgressIndicator
int | animationDuration |
Duration of the animation. | |
int | animationEndValue |
The animation end value. | |
bool | animationRunning |
Is the animation running. | |
int | animationStartValue |
The animation start value. | |
int | animationStep |
The current animation step. | |
Image | background |
The background image. | |
int | currentValue |
The current value. | |
EasingEquation | equation |
The equation used in updateValue() | |
Container | progressIndicatorContainer |
The container that holds the actual progress indicator. | |
int | rangeMax |
The range maximum. | |
int | rangeMin |
The range minimum. | |
uint16_t | rangeSteps |
The range steps. | |
uint16_t | rangeStepsMin |
The range steps minimum. | |
GenericCallback< const AbstractProgressIndicator & > * | valueSetCallback |
New value assigned Callback. | |
GenericCallback< const AbstractProgressIndicator & > * | valueUpdatedCallback |
Animation ended Callback. | |
Public Functions inherited from Container
virtual void | add(Drawable & d) |
Adds a Drawable instance as child to this Container. | |
Container() | |
virtual bool | contains(const Drawable & d) |
Query if a given Drawable has been added directly to this Container. | |
virtual void | draw(const Rect & invalidatedArea) const |
Draw this drawable. | |
virtual void | forEachChild(GenericCallback< Drawable & > * function) |
Executes the specified callback function for each child in the Container. | |
virtual Drawable * | getFirstChild() |
Obtain a pointer to the first child of this container. | |
virtual void | getLastChild(int16_t x, int16_t y, Drawable ** last) |
Gets the last child in the list of children in this Container. | |
virtual void | getLastChildNear(int16_t x, int16_t y, Drawable * last, int16_t fingerAdjustmentX, int16_t * fingerAdjustmentY) |
Works similar to getLastChild() but also considers the current set finger size in HAL. | |
virtual Rect | getSolidRect() const |
Get (the largest possible) rectangle that is guaranteed to be solid (opaque). | |
virtual void | insert(Drawable * previous, Drawable & d) |
Inserts a Drawable after a specific child node. | |
virtual void | invalidateContent() const |
Tell the framework that the contents of the Drawable needs to be redrawn. | |
virtual void | remove(Drawable & d) |
Removes a Drawable from the container by removing it from the linked list of children. | |
virtual void | removeAll() |
Removes all children in the Container by resetting their parent and sibling pointers. | |
virtual void | unlink() |
Removes all children by unlinking the first child. | |
Protected Functions inherited from Container
virtual Rect | getContainedArea() const |
Gets a rectangle describing the total area covered by the children of this container. | |
virtual void | moveChildrenRelative(int16_t deltaX, int16_t deltaY) |
Calls moveRelative on all children. | |
Protected Attributes inherited from Container
Drawable * | firstChild |
Pointer to the first child of this container. Subsequent children can be found through firstChild's nextSibling. | |
Public Functions inherited from Drawable
void | center() |
Centers the Drawable inside its parent. | |
void | centerX() |
Center the Drawable horizontally inside its parent. | |
void | centerY() |
Center the Drawable vertically inside its parent. | |
virtual void | childGeometryChanged() |
This function can be called on parent nodes to signal that the size or position of one or more of its children has changed. | |
virtual void | draw(const Rect & invalidatedArea) const =0 |
Draw this drawable. | |
Drawable() | |
Initializes a new instance of the Drawable class. | |
void | drawToDynamicBitmap(BitmapId id) |
Render the Drawable object into a dynamic bitmap. | |
void | expand(int margin =0) |
Expands the Drawable to have the same size as its parent with a given margin around the edge. | |
Rect | getAbsoluteRect() const |
Helper function for obtaining the rectangle this Drawable covers, expressed in absolute coordinates. | |
virtual Drawable * | getFirstChild() |
Function for obtaining the first child of this drawable if any. | |
int16_t | getHeight() const |
Gets the height of this Drawable. | |
virtual void | getLastChild(int16_t x, int16_t y, Drawable ** last) =0 |
Function for obtaining the the last child of this drawable that intersects with the specified point. | |
Drawable * | getNextSibling() |
Gets the next sibling node. | |
Drawable * | getParent() const |
Returns the parent node. | |
const Rect & | getRect() const |
Gets the rectangle this Drawable covers, in coordinates relative to its parent. | |
virtual Rect | getSolidRect() const =0 |
Get (the largest possible) rectangle that is guaranteed to be solid (opaque). | |
virtual Rect | getSolidRectAbsolute() |
Helper function for obtaining the largest solid rect (as implemented by getSolidRect()) expressed in absolute coordinates. | |
virtual void | getVisibleRect(Rect & rect) const |
Function for finding the visible part of this drawable. | |
int16_t | getWidth() const |
Gets the width of this Drawable. | |
int16_t | getX() const |
Gets the x coordinate of this Drawable, relative to its parent. | |
int16_t | getY() const |
Gets the y coordinate of this Drawable, relative to its parent. | |
virtual void | handleClickEvent(const ClickEvent & event) |
Defines the event handler interface for ClickEvents. | |
virtual void | handleDragEvent(const DragEvent & event) |
Defines the event handler interface for DragEvents. | |
virtual void | handleGestureEvent(const GestureEvent & event) |
Defines the event handler interface for GestureEvents. | |
virtual void | handleTickEvent() |
Called periodically by the framework if the Drawable instance has subscribed to timer ticks. | |
virtual void | invalidate() const |
Tell the framework that this entire Drawable needs to be redrawn. | |
virtual void | invalidateContent() const |
Tell the framework that the contents of the Drawable needs to be redrawn. | |
virtual void | invalidateRect(Rect & invalidatedArea) const |
Request that a region of this drawable is redrawn. | |
bool | isTouchable() const |
Gets whether this Drawable receives touch events or not. | |
bool | isVisible() const |
Gets whether this Drawable is visible. | |
virtual void | moveRelative(int16_t x, int16_t y) |
Moves the drawable. | |
virtual void | moveTo(int16_t x, int16_t y) |
Moves the drawable. | |
virtual void | setHeight(int16_t height) |
Sets the height of this drawable. | |
void | setPosition(const Drawable & drawable) |
Sets the position of the Drawable to the same as the given Drawable. | |
void | setPosition(int16_t x, int16_t y, int16_t width, int16_t height) |
Sets the size and position of this Drawable, relative to its parent. | |
void | setTouchable(bool touch) |
Controls whether this Drawable receives touch events or not. | |
void | setVisible(bool vis) |
Controls whether this Drawable should be visible. | |
virtual void | setWidth(int16_t width) |
Sets the width of this drawable. | |
void | setWidthHeight(const Bitmap & bitmap) |
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates). | |
void | setWidthHeight(const Drawable & drawable) |
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates). | |
void | setWidthHeight(const Rect & other) |
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates). | |
void | setWidthHeight(int16_t width, int16_t height) |
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates). | |
virtual void | setX(int16_t x) |
Sets the x coordinate of this Drawable, relative to its parent. | |
void | setXY(const Drawable & drawable) |
Sets the x and y coordinates of this Drawable. | |
void | setXY(int16_t x, int16_t y) |
Sets the x and y coordinates of this Drawable, relative to its parent. | |
virtual void | setY(int16_t y) |
Sets the y coordinate of this Drawable, relative to its parent. | |
virtual void | translateRectToAbsolute(Rect & r) const |
Helper function for converting a region of this Drawable to absolute coordinates. | |
virtual | ~Drawable() |
Finalizes an instance of the Drawable class. | |
Protected Attributes inherited from Drawable
Drawable * | nextSibling |
Pointer to the next Drawable. | |
Drawable * | parent |
Pointer to this drawable's parent. | |
Rect | rect |
The coordinates of this Drawable, relative to its parent. | |
bool | touchable |
True if this drawable should receive touch events. | |
bool | visible |
True if this drawable should be drawn. | |
Public Functions Documentation
getAnchorAtZero
virtual bool getAnchorAtZero | ( | ) | const |
Gets the current anchor at zero setting.
true if the image is anchored at zero, false if it is anchored at current progress.
getBitmap
virtual BitmapId getBitmap | ( | ) | const |
ImageProgress
setAlpha
virtual void setAlpha | ( | uint8_t | newAlpha | ) | |
Sets the opacity (alpha value).
This can be used to fade it away by gradually decreasing the alpha value from 255 (solid) to 0 (invisible).
newAlpha | The new alpha value. 255=solid, 0=invisible. |
Note
The user code must call invalidate() in order to update the display.
Reimplements: touchgfx::AbstractProgressIndicator::setAlpha
setAnchorAtZero
virtual void setAnchorAtZero | ( | bool | anchorAtZero | ) | |
Sets anchor at zero.
Setting anchor at zero will force the image will be placed so that it is not moved during progress, only more and more of the image will become visible. If the image is not anchored at zero, it will be anchored at the current progress and will appear to slide into view.
anchorAtZero | true to anchor at zero, false to anchor at current progress. |
setBitmap
Sets the bitmap id to use for progress.
Please note that the bitmap is tiled which will allow smaller bitmaps to repeat on the display and save memory.
bitmapId | The bitmap id. |
setProgressIndicatorPosition
virtual void setProgressIndicatorPosition | ( | int16_t | x , | ||
int16_t | y , | ||||
int16_t | width , | ||||
int16_t | height | ||||
) |
Sets the position and dimensions of the actual progress indicator relative to the background image.
x | The x coordinate. |
y | The y coordinate. |
width | The width of the box progress indicator. |
height | The height of the box progress indicator. |
Reimplements: touchgfx::AbstractProgressIndicator::setProgressIndicatorPosition
setValue
virtual void setValue | ( | int | value | ) | |
Sets the current value in the range (min..max) set by setRange().
Values lower than min are mapped to min, values higher than max are mapped to max. If a callback function has been set using setValueSetAction, that callback will be called (unless the new value is the same as the current value).
value | The value. |
Note
if value is equal to the current value, nothing happens, and the callback will not be called.
Reimplements: touchgfx::AbstractProgressIndicator::setValue
Protected Attributes Documentation
container
Container container
The container for the image to allow for anchored images.
fixedPosition
bool fixedPosition
true if the image should not move during progress
image
TiledImage image
The image.