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Added Multigesture support

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This commit is contained in:
SJGL 2016-08-02 19:12:29 -07:00
parent 61ba9d1aaf
commit cebcbd8117
2 changed files with 29 additions and 0 deletions
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22
src/tb/tb_widgets.cpp
View File

@ -1473,6 +1473,28 @@ bool TBWidget::InvokeWheel(int x, int y, int delta_x, int delta_y, MODIFIER_KEYS
return false;
}
bool TBWidget::InvokeMultiGesture (float dTheta, float dDist, int x, int y, uint16 numFingers)
{
SetHoveredWidget(GetWidgetAt(x,y,true), true);
TBWidget *target = captured_widget ? captured_widget : hovered_widget;
if (target)
{
target->ConvertFromRoot(x,y);
TBWidgetEvent ev (EVENT_TYPE_MULTI_GESTURE, x, y, true);
ev.dTheta = dTheta;
ev.dDist = dDist;
ev.numFingers = numFingers;
target->InvokeEvent(ev);
// Return true when we have a target instead of InvokeEvent result. If a widget is
// hit is more interesting for callers than if the event was handled or not.
return true;
}
return false;
}
bool TBWidget::InvokeKey(int key, SPECIAL_KEY special_key, MODIFIER_KEYS modifierkeys, bool down)
{
bool handled = false;

7
src/tb/tb_widgets.h
View File

@ -57,6 +57,8 @@ enum EVENT_TYPE {
EVENT_TYPE_POINTER_MOVE,
EVENT_TYPE_WHEEL,
EVENT_TYPE_MULTI_GESTURE,
/** Invoked after changing text in a TBTextField, changing selected item
in a TBSelectList etc. Invoking this event trigs synchronization with
connected TBWidgetValue and other widgets connected to it. */
@ -120,6 +122,9 @@ public:
TBID ref_id; ///< Sometimes (when documented) events have a ref_id (The id that caused this event)
bool touch; ///< Set for pointer events. True if the event is a touch event (finger or pen on screen)
///< False if mouse or other cursor input.
float dTheta; ///< Set for multigesture events. the amount that the fingers rotated during this motion
float dDist; ///< Set for multigesture events. the amount that the fingers pinched during this motion
uint16 numFingers; ///< Set for multigesture events. the number of fingers used in the gesture
TBOBJECT_SUBCLASS(TBWidgetEvent, TBTypedObject);
@ -925,6 +930,8 @@ public:
void InvokePointerMove(int x, int y, MODIFIER_KEYS modifierkeys, bool touch);
bool InvokeWheel(int x, int y, int delta_x, int delta_y, MODIFIER_KEYS modifierkeys);
bool InvokeMultiGesture (float dTheta, float dDist, int x, int y, uint16 numFingers);
/** Invoke the EVENT_TYPE_KEY_DOWN and EVENT_TYPE_KEY_UP events on the currently focused widget.
This will also do some generic key handling, such as cycling focus on tab etc. */
bool InvokeKey(int key, SPECIAL_KEY special_key, MODIFIER_KEYS modifierkeys, bool down);