367 lines
9.1 KiB
C++
367 lines
9.1 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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ASlider.h
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Dominic Mazzoni
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This class is a custom slider.
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**********************************************************************/
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#ifndef __AUDACITY_SLIDER__
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#define __AUDACITY_SLIDER__
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#include <wx/setup.h> // for wxUSE_* macros
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#include <wx/defs.h>
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#include <wx/timer.h> // member variable
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#include "wxPanelWrapper.h" // to inherit
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class wxBitmap;
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class wxSize;
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class wxPoint;
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class wxTextCtrl;
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class Ruler;
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class TipWindow;
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//
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// Predefined slider types (mStyle)
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//
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#define FRAC_SLIDER 1 // 0.0...1.0
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#define DB_SLIDER 2 // -36...36 dB
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#define PAN_SLIDER 3 // -1.0...1.0
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#define SPEED_SLIDER 4 // 0.01 ..3.0
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#define VEL_SLIDER 5 // -50..50
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#define DB_MIN -36.0f
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#define DB_MAX 36.0f
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#define FRAC_MIN 0.0f
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#define FRAC_MAX 1.0f
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#define SPEED_MIN 0.01f
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#define SPEED_MAX 3.0f
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#define VEL_MIN -50.0f
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#define VEL_MAX 50.0f
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// Customizable slider only: If stepValue is STEP_CONTINUOUS,
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// every value on the slider between minValue and maxValue
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// will be possible
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//
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#define STEP_CONTINUOUS 0.0f
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//
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// Lightweight slider - i.e. a slider that doesn't appear in
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// its own window, but rather draws itself inside an existing
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// window (used inside Track Labels). The ASlider class,
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// which uses this class, is below.
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//
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class AUDACITY_DLL_API LWSlider
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{
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friend class ASlider;
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friend class ASliderAx;
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public:
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// MM: Construct customizable slider
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LWSlider(wxWindow * parent,
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const TranslatableString &name,
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const wxPoint &pos,
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const wxSize &size,
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float minValue,
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float maxValue,
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float stepValue,
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bool canUseShift,
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int style,
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bool heavyweight=false,
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bool popup=true,
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int orientation = wxHORIZONTAL); // wxHORIZONTAL or wxVERTICAL. wxVERTICAL is currently only for DB_SLIDER.
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// Construct predefined slider
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LWSlider(wxWindow * parent,
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const TranslatableString &name,
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const wxPoint &pos,
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const wxSize &size,
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int style,
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bool heavyweight=false,
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bool popup=true,
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int orientation = wxHORIZONTAL); // wxHORIZONTAL or wxVERTICAL. wxVERTICAL is currently only for DB_SLIDER.
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void Init(wxWindow * parent,
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const TranslatableString &name,
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const wxPoint &pos,
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const wxSize &size,
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float minValue,
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float maxValue,
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float stepValue,
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bool canUseShift,
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int style,
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bool heavyweight,
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bool popup,
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float speed,
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int orientation = wxHORIZONTAL); // wxHORIZONTAL or wxVERTICAL. wxVERTICAL is currently only for DB_SLIDER.
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virtual ~LWSlider();
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wxWindowID GetId();
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void SetId(wxWindowID id);
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void SetDefaultValue(float value);
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void SetDefaultShortcut(bool value);
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void GetScroll(float & line, float & page);
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void SetScroll(float line, float page);
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void ShowTip(bool show);
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void SetToolTipTemplate(const TranslatableString & tip);
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float Get(bool convert = true);
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void Set(float value);
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void Increase(float steps);
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void Decrease(float steps);
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// If set to less than 1.0, moving the mouse one pixel will move
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// the slider by less than 1 unit
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void SetSpeed(float speed);
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void Move(const wxPoint &newpos);
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void AdjustSize(const wxSize & sz);
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void OnPaint(wxDC &dc, bool highlighted);
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void OnSize(wxSizeEvent & event);
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void OnMouseEvent(wxMouseEvent & event);
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void OnKeyDown(wxKeyEvent & event);
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void Refresh();
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void Redraw();
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bool ShowDialog();
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bool ShowDialog(wxPoint pos);
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void SetEnabled(bool enabled);
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bool GetEnabled() const;
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float GetMinValue() const;
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float GetMaxValue() const;
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void SetParent(wxWindow *parent) { mParent = parent; }
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void SendUpdate(float newValue);
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private:
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TranslatableString GetTip(float value) const;
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TranslatableStrings GetWidestTips() const;
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void FormatPopWin();
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void SetPopWinPosition();
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void CreatePopWin();
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void DrawToBitmap(wxDC & dc);
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bool DoShowDialog(wxPoint pos);
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int ValueToPosition(float val);
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float DragPositionToValue(int fromPos, bool shiftDown);
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float ClickPositionToValue(int fromPos, bool shiftDown);
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wxWindow *mParent;
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int mStyle;
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int mOrientation; // wxHORIZONTAL or wxVERTICAL. wxVERTICAL is currently only for DB_SLIDER.
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bool mHW; // is it really heavyweight (in a window)
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bool mPopup; // should display dialog on double click
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int mLeft;
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int mTop;
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int mWidth; //In pixels
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int mHeight; //In pixels
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// for (mOrientation == wxHORIZONTAL)
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int mCenterY;
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int mLeftX;
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int mRightX;
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int mWidthX;
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// for (mOrientation == wxVERTICAL) //v Vertical PAN_SLIDER currently not handled, forced to horizontal.
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int mCenterX;
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int mTopY;
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int mBottomY; // low values at bottom
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int mHeightY;
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int mThumbWidth; //In pixels
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int mThumbHeight; //In pixels
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float mClickValue;
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int mClickPos; // position in x if (mOrientation == wxHORIZONTAL), else in y
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float mMinValue;
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float mMaxValue;
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float mStepValue;
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float mSpeed;
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float mScrollLine;
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float mScrollPage;
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float mCurrentValue;
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bool mDefaultShortcut;
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float mDefaultValue;
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bool mCanUseShift;
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wxWindowID mID;
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std::unique_ptr<TipWindow> mTipPanel;
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TranslatableString mTipTemplate;
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bool mIsDragging;
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std::unique_ptr<wxBitmap> mBitmap, mThumbBitmap, mThumbBitmapHilited;
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TranslatableString mName;
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bool mEnabled;
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};
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class AUDACITY_DLL_API ASlider /* not final */ : public wxPanel
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{
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friend class ASliderAx;
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public:
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struct Options {
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Options() {}
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int style{ FRAC_SLIDER };
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wxOrientation orientation{ wxHORIZONTAL };
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bool popup{ true };
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bool canUseShift{ true };
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float stepValue{ STEP_CONTINUOUS };
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float line{ 1.0 };
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float page{ 5.0 };
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Options& Style( int s ) { style = s; return *this; }
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Options& Orientation( wxOrientation o )
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{ orientation = o; return *this; }
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Options& Popup( bool p ) { popup = p; return *this; }
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Options& CanUseShift( bool c ) { canUseShift = c; return *this; }
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Options& StepValue( float v ) { stepValue = v; return *this; }
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Options& Line( float l ) { line = l; return *this; }
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Options& Page( float p ) { page = p; return *this; }
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};
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ASlider( wxWindow * parent,
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wxWindowID id,
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const TranslatableString &name,
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const wxPoint & pos,
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const wxSize & size,
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const Options &options = Options{});
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virtual ~ASlider();
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bool AcceptsFocus() const override { return s_AcceptsFocus; }
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bool AcceptsFocusFromKeyboard() const override { return true; }
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void SetFocusFromKbd() override;
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bool SetBackgroundColour(const wxColour& colour) override;
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void GetScroll(float & line, float & page);
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void SetScroll(float line, float page);
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void SetToolTipTemplate(const TranslatableString & tip);
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float Get( bool convert = true );
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void Set(float value);
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void Increase(float steps);
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void Decrease(float steps);
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bool ShowDialog(wxPoint pos = wxPoint(-1, -1));
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void SetSpeed(float speed);
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void OnErase(wxEraseEvent & event);
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void OnPaint(wxPaintEvent & event);
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void OnSize(wxSizeEvent & event);
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void OnMouseEvent(wxMouseEvent & event);
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void OnCaptureLost(wxMouseCaptureLostEvent & event);
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void OnKeyDown(wxKeyEvent &event);
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void OnSlider(wxCommandEvent &event);
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void OnSetFocus(wxFocusEvent & event);
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void OnKillFocus(wxFocusEvent & event);
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void OnTimer(wxTimerEvent & event);
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// Overrides of the wxWindow functions with the same semantics
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bool Enable(bool enable = true) override;
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bool IsEnabled() const;
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private:
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static bool s_AcceptsFocus;
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struct Resetter { void operator () (bool *p) const { if(p) *p = false; } };
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using TempAllowFocus = std::unique_ptr<bool, Resetter>;
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public:
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static TempAllowFocus TemporarilyAllowFocus();
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private:
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std::unique_ptr<LWSlider> mLWSlider;
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bool mSliderIsFocused;
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wxTimer mTimer;
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protected:
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int mStyle;
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public:
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DECLARE_EVENT_TABLE()
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};
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#define SLIDER_DIALOG_TEXTCTRL 100
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// This is a modal dialog that contains an ASlider
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// and a text-entry box which can be used to set the
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// value of a slider.
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class SliderDialog final : public wxDialogWrapper
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{
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public:
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SliderDialog(wxWindow * parent, wxWindowID id,
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const TranslatableString & title,
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wxPoint position,
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wxSize size,
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int style,
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float value,
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float line,
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float page,
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LWSlider * pSlider=nullptr);
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~SliderDialog();
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float Get();
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private:
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bool TransferDataToWindow() override;
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bool TransferDataFromWindow() override;
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void OnSlider(wxCommandEvent &event);
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void OnTextChange(wxCommandEvent &event);
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ASlider * mSlider;
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wxTextCtrl * mTextCtrl;
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int mStyle;
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LWSlider * mpOrigin;
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float mValue;
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public:
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DECLARE_EVENT_TABLE()
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};
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#endif
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