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Upsilon/apps/shared/simple_interactive_curve_view_controller.h

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1.9 KiB
C++

#ifndef SHARED_SIMPLE_INTERACTIVE_CURVE_VIEW_CONTROLLER_H
#define SHARED_SIMPLE_INTERACTIVE_CURVE_VIEW_CONTROLLER_H
#include <escher/view_controller.h>
#include "text_field_delegate.h"
#include "interactive_curve_view_range.h"
#include "curve_view_cursor.h"
#include "curve_view.h"
namespace Shared {
/* SimpleInteractiveCurveViewController is a View controller with a cursor that
* can handles zoom in/out and left and right events. */
class SimpleInteractiveCurveViewController : public ViewController, public TextFieldDelegate {
public:
SimpleInteractiveCurveViewController(Responder * parentResponder, CurveViewCursor * cursor);
View * view() override;
bool handleEvent(Ion::Events::Event event) override;
bool textFieldDidAbortEditing(TextField * textField) override;
bool textFieldDidReceiveEvent(TextField * textField, Ion::Events::Event event) override;
protected:
constexpr static float k_cursorRightMarginRatio = 0.04f; // (cursorWidth/2)/(graphViewWidth-1)
constexpr static float k_cursorLeftMarginRatio = 0.04f; // (cursorWidth/2)/(graphViewWidth-1)
virtual float cursorTopMarginRatio() { return 0.07f; } // (cursorHeight/2)/(graphViewHeight-1)
virtual float cursorBottomMarginRatio() = 0; // (cursorHeight/2+bannerHeight)/(graphViewHeight-1)
constexpr static float k_numberOfCursorStepsInGradUnit = 5.0f;
virtual bool handleZoom(Ion::Events::Event event);
virtual bool handleLeftRightEvent(Ion::Events::Event event);
virtual void reloadBannerView() = 0;
/* the result of moveCursorVertically/Horizontally means:
* false -> the cursor cannot move in this direction
* true -> the cursor moved */
virtual bool moveCursorHorizontally(int direction) { return false; };
virtual InteractiveCurveViewRange * interactiveCurveViewRange() = 0;
virtual CurveView * curveView() = 0;
virtual bool handleEnter() = 0;
CurveViewCursor * m_cursor;
};
}
#endif