16 // Abstract base class for all components that a control panel must have
17 class Control : public SkRefCnt {  class
19     Control(SkString name)  in Control()  function in Control
24     // Use this to propagate a click's position down to a control. Gets modulated by the component's
32     // Use this to draw the control and its appropriate children. Gets modulated by the component's
41     /* Returns true when click position argumend lands over a control region in this control. Click
110     // Overriden by sub-classes with controls. Should return true if clickPos lands inside a control
114     // The position of the control relative to it's parent
118 class ParentControl : public Control { // Interface for all controls that have children
123     virtual void add(sk_sp<Control> control) = 0;
125     // Returns the control's width. Used to propagate width down to components that don't specify it
129     typedef Control INHERITED;
156     void add(sk_sp<Control> control) override {  in add()  argument
158         fControls.push_back(control);  in add()
159         control->setParent(this, SkPoint::Make(0.0f, fHeight));  in add()
160         fHeight += control->height();  in add()
171     // Propagate click release to selected control, deselect control
191     // Holds a vertical shelf of controls. Only control that can be hooked from outside the
198     // Returns true if control panel has mouse captured, false when it is ready to release
202         if (fSelectedControl == -1) { // If no child control selected, check every child  in onClick()
211         if (fSelectedControl >= 0) { // If child control selected, propagate click  in onClick()
231     // Check all children's control regions
246     SkTArray<sk_sp<Control>> fControls;
250 class DiscreteSliderControl : public Control {
264      * @params name    The name of the control, displayed in the label
269     static sk_sp<Control> Make(SkString name, int* output, int min, int max) {  in Make()
270         return sk_sp<Control>(new DiscreteSliderControl(name, output, min, max));  in Make()
330     typedef Control INHERITED;
336     void add(sk_sp<Control> control) override {  in add()  argument
338         fControls.push_back(control);  in add()
339         control->setParent(this, SkPoint::Make(0.0f, kSelectorHeight));  in add()
340         fHeight = SkMaxScalar(fHeight, control->height()); // Setting height to max child height.  in add()
349     // Propagate onClickRelease to control that currently captures mouse
362         // Finalize control selector  in onSetParent()
374     /* A set of a selector and a list of controls. Displays the control from the list of controls
384     // Draw selector and currently selected control
390     // Returns true if control panel has mouse captured, false when it is ready to release
407     // Is in control region of selector or currently selected control
428     sk_sp<Control> fControlSelector;
430     SkTArray<sk_sp<Control>> fControls;
433     Control* fCtrlOnClick;
440 class ContinuousSliderControl : public Control {
454      * @params name    The name of the control, displayed in the label
459     static sk_sp<Control> Make(const SkString& name, SkScalar* output, SkScalar min, SkScalar max) {  in Make()
460        return sk_sp<Control>(new ContinuousSliderControl(name, output, min, max));  in Make()
513     typedef Control INHERITED;
516 class RadialDirectionControl : public Control {
524      * @params name    The name of the control, displayed in the label
527     static sk_sp<Control> Make(const SkString& name, SkVector* output) {  in Make()
528         return sk_sp<Control>(new RadialDirectionControl(name, output));  in Make()
588     typedef Control INHERITED;
591 class ColorDisplay: public Control {
605     static sk_sp<Control> Make(SkColor3f* input) {  in Make()
606         return sk_sp<Control>(new ColorDisplay(SkString("ColorDisplay"), input));  in Make()
629     typedef Control INHERITED;
741         canvas->resetMatrix(); // Force static control panel position  in onDrawContent()
773         // Control panel mouse handling  in onClick()
776         if (fControlPanelSelected) { // Control modification  in onClick()