Class Hierarchy
TComponent
TJvMouseGestureTJvMouseGesture = class(TComponent)
File
Description
This class implements the basic interpreter. It can be used to enhance single components, too. E.g., if you want to enable a grid with gesture feature. For this purpose you have to do 4 steps:
1) Fill the "OnMouseDown" event with code like
if Button = mbRight then
JvMouseGesture1.StartMouseGesture(x,y);
2) Fill the OnMouseMove event with something like
if JvMouseGesture1.TrailActive then JvMouseGesture1.TrailMouseGesture(x,y);
3) Now fill the OnMouseUp event
if JvMouseGesture1.TrailActive then begin JvMouseGesture1.EndMouseGesture;
4) Last but not least fill components
OnJvMouseGestureCustomInterpretation
XOR
OnJvMouseGesture<xyz>
event
Notes
If CustomInterpreation is filled the other events are not fired!
See Also
Events
| Event | Description |
 OnJvMouseGestureCustomInterpretation | Event for own evaluation of detected gesture. If this event is used all others will be ignored! |
|
OnJvMouseGestureDown | Event for a simple MOUSE DOWN gesture |
|
OnJvMouseGestureLeft | Event for a simple MOUSE LEFT gesture |
|
OnJvMouseGestureLeftLowerEdge | Event for a simple diagonally MOUSE LEFT LOWER EDGE (point 1 in grid) gesture |
|
OnJvMouseGestureLeftUpperEdge | Event for a simple diagonally MOUSE LEFT UPPER EDGE (point 7 in grid) gesture |
|
OnJvMouseGestureRight | Event for a simple MOUSE RIGHT gesture |
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OnJvMouseGestureRightLowerEdge | Event for a simple diagonally MOUSE RIGHT LOWER EDGE (point 3 in grid) gesture |
|
OnJvMouseGestureRightUpperEdge | Event for a simple diagonally MOUSE RIGHT UPPER EDGE (point 9 in grid) gesture |
|
OnJvMouseGestureUp | Event for a simple MOUSE UP gesture |
Legend
|
| published |
Members
Properties
| Property | Description |
|
Active | TRUE if component is active, otherwise FALSE |
|
Delay | The maximum delay before cancelling a gesture Normally never been changed |
 Gesture | The gesture string. For string content see description of unit. |
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Grid | Grid size for detection Normally never been changed |
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TrailActive | TRUE, if in detection, otherwise FALSE |
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TrailInterval | Trail interval Normally never been changed |
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TrailLength | The actual length of trail (not of gesture string!!!) |
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TrailLimit | The maximum length of trail (not of gesture string!!!) Normally never been changed |
Events
| Event | Description |
|
OnJvMouseGestureCustomInterpretation | Event for own evaluation of detected gesture. If this event is used all others will be ignored! |
|
OnJvMouseGestureDown | Event for a simple MOUSE DOWN gesture |
|
OnJvMouseGestureLeft | Event for a simple MOUSE LEFT gesture |
|
OnJvMouseGestureLeftLowerEdge | Event for a simple diagonally MOUSE LEFT LOWER EDGE (point 1 in grid) gesture |
|
OnJvMouseGestureLeftUpperEdge | Event for a simple diagonally MOUSE LEFT UPPER EDGE (point 7 in grid) gesture |
|
OnJvMouseGestureRight | Event for a simple MOUSE RIGHT gesture |
|
OnJvMouseGestureRightLowerEdge | Event for a simple diagonally MOUSE RIGHT LOWER EDGE (point 3 in grid) gesture |
|
OnJvMouseGestureRightUpperEdge | Event for a simple diagonally MOUSE RIGHT UPPER EDGE (point 9 in grid) gesture |
|
OnJvMouseGestureUp | Event for a simple MOUSE UP gesture |
Methods
| Method | Description |
 Create |
Standard constructor TJvMouseGesture |
|
Destroy | Standard destructor |
| EndMouseGesture | Ends the mouse gesture interpretation and fires an event if a gesture was found |
| StartMouseGesture | Starts the mouse gesture interpretation |
| TrailMouseGesture | Continues the mouse gesture interpretation during mouse move |
Legend
|
| published |
|
| read only |
|
| virtual |
Links