fpdfsdk/pdfwindow/PWL_Wnd.h - platform/external/pdfium - Gitiles

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

 #ifndef FPDFSDK_PDFWINDOW_PWL_WND_H_
 #define FPDFSDK_PDFWINDOW_PWL_WND_H_

 #include <memory>
 #include <vector>

 #include "core/fpdfdoc/cpdf_formcontrol.h"
 #include "core/fxcrt/cfx_observable.h"
 #include "core/fxcrt/fx_basic.h"
 #include "fpdfsdk/cfx_systemhandler.h"
 #include "fpdfsdk/cpdfsdk_widget.h"
 #include "fpdfsdk/pdfwindow/cpwl_color.h"

 class CPWL_MsgControl;
 class CPWL_ScrollBar;
 class CPWL_Timer;
 class CPWL_TimerHandler;
 class CPWL_Wnd;
 class CFX_SystemHandler;
 class IPVT_FontMap;
 class IPWL_Provider;

 // window styles
 #define PWS_CHILD 0x80000000L
 #define PWS_BORDER 0x40000000L
 #define PWS_BACKGROUND 0x20000000L
 #define PWS_HSCROLL 0x10000000L
 #define PWS_VSCROLL 0x08000000L
 #define PWS_VISIBLE 0x04000000L
 #define PWS_DISABLE 0x02000000L
 #define PWS_READONLY 0x01000000L
 #define PWS_AUTOFONTSIZE 0x00800000L
 #define PWS_AUTOTRANSPARENT 0x00400000L
 #define PWS_NOREFRESHCLIP 0x00200000L

 // edit and label styles
 #define PES_MULTILINE 0x0001L
 #define PES_PASSWORD 0x0002L
 #define PES_LEFT 0x0004L
 #define PES_RIGHT 0x0008L
 #define PES_MIDDLE 0x0010L
 #define PES_TOP 0x0020L
 #define PES_BOTTOM 0x0040L
 #define PES_CENTER 0x0080L
 #define PES_CHARARRAY 0x0100L
 #define PES_AUTOSCROLL 0x0200L
 #define PES_AUTORETURN 0x0400L
 #define PES_UNDO 0x0800L
 #define PES_RICH 0x1000L
 #define PES_SPELLCHECK 0x2000L
 #define PES_TEXTOVERFLOW 0x4000L
 #define PES_NOREAD 0x8000L

 // listbox styles
 #define PLBS_MULTIPLESEL 0x0001L
 #define PLBS_HOVERSEL 0x0008L

 // combobox styles
 #define PCBS_ALLOWCUSTOMTEXT 0x0001L

 // richedit styles
 #define PRES_MULTILINE 0x0001L
 #define PRES_AUTORETURN 0x0002L
 #define PRES_AUTOSCROLL 0x0004L
 #define PRES_UNDO 0x0100L
 #define PRES_MULTIPAGES 0x0200L
 #define PRES_TEXTOVERFLOW 0x0400L

 // notification messages
 #define PNM_ADDCHILD 0x00000000L
 #define PNM_REMOVECHILD 0x00000001L
 #define PNM_SETSCROLLINFO 0x00000002L
 #define PNM_SETSCROLLPOS 0x00000003L
 #define PNM_SCROLLWINDOW 0x00000004L
 #define PNM_LBUTTONDOWN 0x00000005L
 #define PNM_LBUTTONUP 0x00000006L
 #define PNM_MOUSEMOVE 0x00000007L
 #define PNM_NOTERESET 0x00000008L
 #define PNM_SETCARETINFO 0x00000009L
 #define PNM_SELCHANGED 0x0000000AL
 #define PNM_NOTEEDITCHANGED 0x0000000BL

 #define PWL_CLASSNAME_EDIT "CPWL_Edit"

 struct CPWL_Dash {
   CPWL_Dash() : nDash(0), nGap(0), nPhase(0) {}
   CPWL_Dash(int32_t dash, int32_t gap, int32_t phase)
       : nDash(dash), nGap(gap), nPhase(phase) {}

   void Reset() {
     nDash = 0;
     nGap = 0;
     nPhase = 0;
   }

   int32_t nDash;
   int32_t nGap;
   int32_t nPhase;
 };

 inline bool operator==(const CPWL_Color& c1, const CPWL_Color& c2) {
   return c1.nColorType == c2.nColorType && c1.fColor1 - c2.fColor1 < 0.0001 &&
          c1.fColor1 - c2.fColor1 > -0.0001 &&
          c1.fColor2 - c2.fColor2 < 0.0001 &&
          c1.fColor2 - c2.fColor2 > -0.0001 &&
          c1.fColor3 - c2.fColor3 < 0.0001 &&
          c1.fColor3 - c2.fColor3 > -0.0001 &&
          c1.fColor4 - c2.fColor4 < 0.0001 && c1.fColor4 - c2.fColor4 > -0.0001;
 }

 inline bool operator!=(const CPWL_Color& c1, const CPWL_Color& c2) {
   return !(c1 == c2);
 }

 #define PWL_SCROLLBAR_WIDTH 12.0f
 #define PWL_SCROLLBAR_BUTTON_WIDTH 9.0f
 #define PWL_SCROLLBAR_POSBUTTON_MINWIDTH 2.0f
 #define PWL_SCROLLBAR_TRANSPARENCY 150
 #define PWL_SCROLLBAR_BKCOLOR \
   CPWL_Color(COLORTYPE_RGB, 220.0f / 255.0f, 220.0f / 255.0f, 220.0f / 255.0f)
 #define PWL_DEFAULT_SELTEXTCOLOR CPWL_Color(COLORTYPE_RGB, 1, 1, 1)
 #define PWL_DEFAULT_SELBACKCOLOR \
   CPWL_Color(COLORTYPE_RGB, 0, 51.0f / 255.0f, 113.0f / 255.0f)
 #define PWL_DEFAULT_BACKCOLOR PWL_DEFAULT_SELTEXTCOLOR
 #define PWL_DEFAULT_TEXTCOLOR CPWL_Color(COLORTYPE_RGB, 0, 0, 0)
 #define PWL_DEFAULT_FONTSIZE 9.0f
 #define PWL_DEFAULT_BLACKCOLOR CPWL_Color(COLORTYPE_GRAY, 0)
 #define PWL_DEFAULT_WHITECOLOR CPWL_Color(COLORTYPE_GRAY, 1)
 #define PWL_DEFAULT_HEAVYGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.50)
 #define PWL_DEFAULT_LIGHTGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.75)
 #define PWL_TRIANGLE_HALFLEN 2.0f
 #define PWL_CBBUTTON_TRIANGLE_HALFLEN 3.0f
 #define PWL_INVALIDATE_INFLATE 2

 class IPWL_Provider : public CFX_Observable<IPWL_Provider> {
  public:
   virtual ~IPWL_Provider() {}

   // get a matrix which map user space to CWnd client space
   virtual CFX_Matrix GetWindowMatrix(void* pAttachedData) = 0;

   /*
   0 L"&Undo\tCtrl+Z"
   1 L"&Redo\tCtrl+Shift+Z"
   2 L"Cu&t\tCtrl+X"
   3 L"&Copy\tCtrl+C"
   4 L"&Paste\tCtrl+V"
   5 L"&Delete"
   6  L"&Select All\tCtrl+A"
   */
   virtual CFX_WideString LoadPopupMenuString(int32_t nIndex) = 0;
 };

 class IPWL_FocusHandler {
  public:
   virtual ~IPWL_FocusHandler() {}
   virtual void OnSetFocus(CPWL_Wnd* pWnd) = 0;
 };

 struct PWL_CREATEPARAM {
  public:
   PWL_CREATEPARAM();
   PWL_CREATEPARAM(const PWL_CREATEPARAM& other);

   void Reset() {
     rcRectWnd.Reset();
     pSystemHandler = nullptr;
     pFontMap = nullptr;
     pProvider.Reset();
     pFocusHandler = nullptr;
     dwFlags = 0;
     sBackgroundColor.Reset();
     pAttachedWidget.Reset();
     nBorderStyle = BorderStyle::SOLID;
     dwBorderWidth = 0;
     sBorderColor.Reset();
     sTextColor.Reset();
     nTransparency = 0;
     fFontSize = 0.0f;
     sDash.Reset();
     pAttachedData = nullptr;
     pParentWnd = nullptr;
     pMsgControl = nullptr;
     eCursorType = 0;
     mtChild.SetIdentity();
   }

   CFX_FloatRect rcRectWnd;            // required
   CFX_SystemHandler* pSystemHandler;  // required
   IPVT_FontMap* pFontMap;             // required
   IPWL_Provider::ObservedPtr pProvider;  // required
   IPWL_FocusHandler* pFocusHandler;   // optional
   uint32_t dwFlags;                   // optional
   CPWL_Color sBackgroundColor;        // optional
   CPDFSDK_Widget::ObservedPtr pAttachedWidget;  // required
   BorderStyle nBorderStyle;           // optional
   int32_t dwBorderWidth;              // optional
   CPWL_Color sBorderColor;            // optional
   CPWL_Color sTextColor;              // optional
   int32_t nTransparency;              // optional
   float fFontSize;                    // optional
   CPWL_Dash sDash;                    // optional
   void* pAttachedData;                // optional
   CPWL_Wnd* pParentWnd;               // ignore
   CPWL_MsgControl* pMsgControl;       // ignore
   int32_t eCursorType;                // ignore
   CFX_Matrix mtChild;                 // ignore
 };

 class CPWL_Timer {
  public:
   CPWL_Timer(CPWL_TimerHandler* pAttached, CFX_SystemHandler* pSystemHandler);
   virtual ~CPWL_Timer();

   int32_t SetPWLTimer(int32_t nElapse);
   void KillPWLTimer();
   static void TimerProc(int32_t idEvent);

  private:
   int32_t m_nTimerID;
   CPWL_TimerHandler* m_pAttached;
   CFX_SystemHandler* m_pSystemHandler;
 };

 class CPWL_TimerHandler {
  public:
   CPWL_TimerHandler();
   virtual ~CPWL_TimerHandler();

   void BeginTimer(int32_t nElapse);
   void EndTimer();
   virtual void TimerProc();
   virtual CFX_SystemHandler* GetSystemHandler() const = 0;

  private:
   std::unique_ptr<CPWL_Timer> m_pTimer;
 };

 class CPWL_Wnd : public CPWL_TimerHandler {
  public:
   CPWL_Wnd();
   ~CPWL_Wnd() override;

   virtual CFX_ByteString GetClassName() const;
   virtual void InvalidateRect(CFX_FloatRect* pRect = nullptr);

   virtual bool OnKeyDown(uint16_t nChar, uint32_t nFlag);
   virtual bool OnChar(uint16_t nChar, uint32_t nFlag);
   virtual bool OnLButtonDblClk(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnLButtonDown(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnLButtonUp(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnRButtonDown(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnRButtonUp(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnMouseMove(const CFX_PointF& point, uint32_t nFlag);
   virtual bool OnMouseWheel(short zDelta,
                             const CFX_PointF& point,
                             uint32_t nFlag);
   virtual void OnNotify(CPWL_Wnd* pWnd,
                         uint32_t msg,
                         intptr_t wParam = 0,
                         intptr_t lParam = 0);
   virtual void SetFocus();
   virtual void KillFocus();
   virtual void SetCursor();
   virtual void SetVisible(bool bVisible);
   virtual void SetFontSize(float fFontSize);
   virtual float GetFontSize() const;

   virtual CFX_FloatRect GetFocusRect() const;
   virtual CFX_FloatRect GetClientRect() const;

   void InvalidateFocusHandler(IPWL_FocusHandler* handler);
   void InvalidateProvider(IPWL_Provider* provider);
   void Create(const PWL_CREATEPARAM& cp);
   void Destroy();
   void Move(const CFX_FloatRect& rcNew, bool bReset, bool bRefresh);

   void SetCapture();
   void ReleaseCapture();

   void DrawAppearance(CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device);

   CPWL_Color GetBackgroundColor() const;
   void SetBackgroundColor(const CPWL_Color& color);
   CPWL_Color GetBorderColor() const;
   CPWL_Color GetTextColor() const;
   void SetTextColor(const CPWL_Color& color);
   CPWL_Color GetBorderLeftTopColor(BorderStyle nBorderStyle) const;
   CPWL_Color GetBorderRightBottomColor(BorderStyle nBorderStyle) const;

   void SetBorderStyle(BorderStyle eBorderStyle);
   BorderStyle GetBorderStyle() const;
   const CPWL_Dash& GetBorderDash() const;

   int32_t GetBorderWidth() const;
   int32_t GetInnerBorderWidth() const;
   CFX_FloatRect GetWindowRect() const;
   CFX_PointF GetCenterPoint() const;

   bool IsVisible() const { return m_bVisible; }
   bool HasFlag(uint32_t dwFlags) const;
   void AddFlag(uint32_t dwFlags);
   void RemoveFlag(uint32_t dwFlags);

   void SetClipRect(const CFX_FloatRect& rect);
   const CFX_FloatRect& GetClipRect() const;

   CPWL_Wnd* GetParentWindow() const;
   void* GetAttachedData() const;

   bool WndHitTest(const CFX_PointF& point) const;
   bool ClientHitTest(const CFX_PointF& point) const;
   bool IsCaptureMouse() const;

   void EnableWindow(bool bEnable);
   bool IsEnabled() const { return m_bEnabled; }
   const CPWL_Wnd* GetFocused() const;
   bool IsFocused() const;
   bool IsReadOnly() const;
   CPWL_ScrollBar* GetVScrollBar() const;

   IPVT_FontMap* GetFontMap() const;
   IPWL_Provider* GetProvider() const;
   IPWL_FocusHandler* GetFocusHandler() const;

   int32_t GetTransparency();
   void SetTransparency(int32_t nTransparency);

   CFX_Matrix GetChildToRoot() const;
   CFX_Matrix GetChildMatrix() const;
   void SetChildMatrix(const CFX_Matrix& mt);
   CFX_Matrix GetWindowMatrix() const;

  protected:
   friend class CPWL_MsgControl;

   // CPWL_TimerHandler
   CFX_SystemHandler* GetSystemHandler() const override;

   virtual void CreateChildWnd(const PWL_CREATEPARAM& cp);
   virtual void RePosChildWnd();
   virtual void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream);

   virtual void DrawThisAppearance(CFX_RenderDevice* pDevice,
                                   CFX_Matrix* pUser2Device);

   virtual void OnCreate(PWL_CREATEPARAM& cp);
   virtual void OnCreated();
   virtual void OnDestroy();

   virtual void OnSetFocus();
   virtual void OnKillFocus();

   void GetAppearanceStream(CFX_ByteTextBuf& sAppStream);
   void SetNotifyFlag(bool bNotifying = true) { m_bNotifying = bNotifying; }

   bool IsValid() const;
   const PWL_CREATEPARAM& GetCreationParam() const;
   bool IsNotifying() const { return m_bNotifying; }

   void InvalidateRectMove(const CFX_FloatRect& rcOld,
                           const CFX_FloatRect& rcNew);

   bool IsWndCaptureMouse(const CPWL_Wnd* pWnd) const;
   bool IsWndCaptureKeyboard(const CPWL_Wnd* pWnd) const;
   const CPWL_Wnd* GetRootWnd() const;

   bool IsCTRLpressed(uint32_t nFlag) const;
   bool IsSHIFTpressed(uint32_t nFlag) const;
   bool IsALTpressed(uint32_t nFlag) const;

  private:
   CFX_PointF ParentToChild(const CFX_PointF& point) const;
   CFX_FloatRect ParentToChild(const CFX_FloatRect& rect) const;

   void GetChildAppearanceStream(CFX_ByteTextBuf& sAppStream);
   void DrawChildAppearance(CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device);

   FX_RECT PWLtoWnd(const CFX_FloatRect& rect) const;

   void AddChild(CPWL_Wnd* pWnd);
   void RemoveChild(CPWL_Wnd* pWnd);

   void CreateScrollBar(const PWL_CREATEPARAM& cp);
   void CreateVScrollBar(const PWL_CREATEPARAM& cp);

   void AdjustStyle();
   void CreateMsgControl();
   void DestroyMsgControl();

   CPWL_MsgControl* GetMsgControl() const;

   std::vector<CPWL_Wnd*> m_Children;
   PWL_CREATEPARAM m_sPrivateParam;
   CPWL_ScrollBar* m_pVScrollBar;
   CFX_FloatRect m_rcWindow;
   CFX_FloatRect m_rcClip;
   bool m_bCreated;
   bool m_bVisible;
   bool m_bNotifying;
   bool m_bEnabled;
 };

 #endif  // FPDFSDK_PDFWINDOW_PWL_WND_H_
	// Copyright 2014 PDFium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

	#ifndef FPDFSDK_PDFWINDOW_PWL_WND_H_
	#define FPDFSDK_PDFWINDOW_PWL_WND_H_

	#include <memory>
	#include <vector>

	#include "core/fpdfdoc/cpdf_formcontrol.h"
	#include "core/fxcrt/cfx_observable.h"
	#include "core/fxcrt/fx_basic.h"
	#include "fpdfsdk/cfx_systemhandler.h"
	#include "fpdfsdk/cpdfsdk_widget.h"
	#include "fpdfsdk/pdfwindow/cpwl_color.h"

	class CPWL_MsgControl;
	class CPWL_ScrollBar;
	class CPWL_Timer;
	class CPWL_TimerHandler;
	class CPWL_Wnd;
	class CFX_SystemHandler;
	class IPVT_FontMap;
	class IPWL_Provider;

	// window styles
	#define PWS_CHILD 0x80000000L
	#define PWS_BORDER 0x40000000L
	#define PWS_BACKGROUND 0x20000000L
	#define PWS_HSCROLL 0x10000000L
	#define PWS_VSCROLL 0x08000000L
	#define PWS_VISIBLE 0x04000000L
	#define PWS_DISABLE 0x02000000L
	#define PWS_READONLY 0x01000000L
	#define PWS_AUTOFONTSIZE 0x00800000L
	#define PWS_AUTOTRANSPARENT 0x00400000L
	#define PWS_NOREFRESHCLIP 0x00200000L

	// edit and label styles
	#define PES_MULTILINE 0x0001L
	#define PES_PASSWORD 0x0002L
	#define PES_LEFT 0x0004L
	#define PES_RIGHT 0x0008L
	#define PES_MIDDLE 0x0010L
	#define PES_TOP 0x0020L
	#define PES_BOTTOM 0x0040L
	#define PES_CENTER 0x0080L
	#define PES_CHARARRAY 0x0100L
	#define PES_AUTOSCROLL 0x0200L
	#define PES_AUTORETURN 0x0400L
	#define PES_UNDO 0x0800L
	#define PES_RICH 0x1000L
	#define PES_SPELLCHECK 0x2000L
	#define PES_TEXTOVERFLOW 0x4000L
	#define PES_NOREAD 0x8000L

	// listbox styles
	#define PLBS_MULTIPLESEL 0x0001L
	#define PLBS_HOVERSEL 0x0008L

	// combobox styles
	#define PCBS_ALLOWCUSTOMTEXT 0x0001L

	// richedit styles
	#define PRES_MULTILINE 0x0001L
	#define PRES_AUTORETURN 0x0002L
	#define PRES_AUTOSCROLL 0x0004L
	#define PRES_UNDO 0x0100L
	#define PRES_MULTIPAGES 0x0200L
	#define PRES_TEXTOVERFLOW 0x0400L

	// notification messages
	#define PNM_ADDCHILD 0x00000000L
	#define PNM_REMOVECHILD 0x00000001L
	#define PNM_SETSCROLLINFO 0x00000002L
	#define PNM_SETSCROLLPOS 0x00000003L
	#define PNM_SCROLLWINDOW 0x00000004L
	#define PNM_LBUTTONDOWN 0x00000005L
	#define PNM_LBUTTONUP 0x00000006L
	#define PNM_MOUSEMOVE 0x00000007L
	#define PNM_NOTERESET 0x00000008L
	#define PNM_SETCARETINFO 0x00000009L
	#define PNM_SELCHANGED 0x0000000AL
	#define PNM_NOTEEDITCHANGED 0x0000000BL

	#define PWL_CLASSNAME_EDIT "CPWL_Edit"

	struct CPWL_Dash {
	CPWL_Dash() : nDash(0), nGap(0), nPhase(0) {}
	CPWL_Dash(int32_t dash, int32_t gap, int32_t phase)
	: nDash(dash), nGap(gap), nPhase(phase) {}

	void Reset() {
	nDash = 0;
	nGap = 0;
	nPhase = 0;
	}

	int32_t nDash;
	int32_t nGap;
	int32_t nPhase;
	};

	inline bool operator==(const CPWL_Color& c1, const CPWL_Color& c2) {
	return c1.nColorType == c2.nColorType && c1.fColor1 - c2.fColor1 < 0.0001 &&
	c1.fColor1 - c2.fColor1 > -0.0001 &&
	c1.fColor2 - c2.fColor2 < 0.0001 &&
	c1.fColor2 - c2.fColor2 > -0.0001 &&
	c1.fColor3 - c2.fColor3 < 0.0001 &&
	c1.fColor3 - c2.fColor3 > -0.0001 &&
	c1.fColor4 - c2.fColor4 < 0.0001 && c1.fColor4 - c2.fColor4 > -0.0001;
	}

	inline bool operator!=(const CPWL_Color& c1, const CPWL_Color& c2) {
	return !(c1 == c2);
	}

	#define PWL_SCROLLBAR_WIDTH 12.0f
	#define PWL_SCROLLBAR_BUTTON_WIDTH 9.0f
	#define PWL_SCROLLBAR_POSBUTTON_MINWIDTH 2.0f
	#define PWL_SCROLLBAR_TRANSPARENCY 150
	#define PWL_SCROLLBAR_BKCOLOR \
	CPWL_Color(COLORTYPE_RGB, 220.0f / 255.0f, 220.0f / 255.0f, 220.0f / 255.0f)
	#define PWL_DEFAULT_SELTEXTCOLOR CPWL_Color(COLORTYPE_RGB, 1, 1, 1)
	#define PWL_DEFAULT_SELBACKCOLOR \
	CPWL_Color(COLORTYPE_RGB, 0, 51.0f / 255.0f, 113.0f / 255.0f)
	#define PWL_DEFAULT_BACKCOLOR PWL_DEFAULT_SELTEXTCOLOR
	#define PWL_DEFAULT_TEXTCOLOR CPWL_Color(COLORTYPE_RGB, 0, 0, 0)
	#define PWL_DEFAULT_FONTSIZE 9.0f
	#define PWL_DEFAULT_BLACKCOLOR CPWL_Color(COLORTYPE_GRAY, 0)
	#define PWL_DEFAULT_WHITECOLOR CPWL_Color(COLORTYPE_GRAY, 1)
	#define PWL_DEFAULT_HEAVYGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.50)
	#define PWL_DEFAULT_LIGHTGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.75)
	#define PWL_TRIANGLE_HALFLEN 2.0f
	#define PWL_CBBUTTON_TRIANGLE_HALFLEN 3.0f
	#define PWL_INVALIDATE_INFLATE 2

	class IPWL_Provider : public CFX_Observable<IPWL_Provider> {
	public:
	virtual ~IPWL_Provider() {}

	// get a matrix which map user space to CWnd client space
	virtual CFX_Matrix GetWindowMatrix(void* pAttachedData) = 0;

	/*
	0 L"&Undo\tCtrl+Z"
	1 L"&Redo\tCtrl+Shift+Z"
	2 L"Cu&t\tCtrl+X"
	3 L"&Copy\tCtrl+C"
	4 L"&Paste\tCtrl+V"
	5 L"&Delete"
	6 L"&Select All\tCtrl+A"
	*/
	virtual CFX_WideString LoadPopupMenuString(int32_t nIndex) = 0;
	};

	class IPWL_FocusHandler {
	public:
	virtual ~IPWL_FocusHandler() {}
	virtual void OnSetFocus(CPWL_Wnd* pWnd) = 0;
	};

	struct PWL_CREATEPARAM {
	public:
	PWL_CREATEPARAM();
	PWL_CREATEPARAM(const PWL_CREATEPARAM& other);

	void Reset() {
	rcRectWnd.Reset();
	pSystemHandler = nullptr;
	pFontMap = nullptr;
	pProvider.Reset();
	pFocusHandler = nullptr;
	dwFlags = 0;
	sBackgroundColor.Reset();
	pAttachedWidget.Reset();
	nBorderStyle = BorderStyle::SOLID;
	dwBorderWidth = 0;
	sBorderColor.Reset();
	sTextColor.Reset();
	nTransparency = 0;
	fFontSize = 0.0f;
	sDash.Reset();
	pAttachedData = nullptr;
	pParentWnd = nullptr;
	pMsgControl = nullptr;
	eCursorType = 0;
	mtChild.SetIdentity();
	}

	CFX_FloatRect rcRectWnd; // required
	CFX_SystemHandler* pSystemHandler; // required
	IPVT_FontMap* pFontMap; // required
	IPWL_Provider::ObservedPtr pProvider; // required
	IPWL_FocusHandler* pFocusHandler; // optional
	uint32_t dwFlags; // optional
	CPWL_Color sBackgroundColor; // optional
	CPDFSDK_Widget::ObservedPtr pAttachedWidget; // required
	BorderStyle nBorderStyle; // optional
	int32_t dwBorderWidth; // optional
	CPWL_Color sBorderColor; // optional
	CPWL_Color sTextColor; // optional
	int32_t nTransparency; // optional
	float fFontSize; // optional
	CPWL_Dash sDash; // optional
	void* pAttachedData; // optional
	CPWL_Wnd* pParentWnd; // ignore
	CPWL_MsgControl* pMsgControl; // ignore
	int32_t eCursorType; // ignore
	CFX_Matrix mtChild; // ignore
	};

	class CPWL_Timer {
	public:
	CPWL_Timer(CPWL_TimerHandler* pAttached, CFX_SystemHandler* pSystemHandler);
	virtual ~CPWL_Timer();

	int32_t SetPWLTimer(int32_t nElapse);
	void KillPWLTimer();
	static void TimerProc(int32_t idEvent);

	private:
	int32_t m_nTimerID;
	CPWL_TimerHandler* m_pAttached;
	CFX_SystemHandler* m_pSystemHandler;
	};

	class CPWL_TimerHandler {
	public:
	CPWL_TimerHandler();
	virtual ~CPWL_TimerHandler();

	void BeginTimer(int32_t nElapse);
	void EndTimer();
	virtual void TimerProc();
	virtual CFX_SystemHandler* GetSystemHandler() const = 0;

	private:
	std::unique_ptr<CPWL_Timer> m_pTimer;
	};

	class CPWL_Wnd : public CPWL_TimerHandler {
	public:
	CPWL_Wnd();
	~CPWL_Wnd() override;

	virtual CFX_ByteString GetClassName() const;
	virtual void InvalidateRect(CFX_FloatRect* pRect = nullptr);

	virtual bool OnKeyDown(uint16_t nChar, uint32_t nFlag);
	virtual bool OnChar(uint16_t nChar, uint32_t nFlag);
	virtual bool OnLButtonDblClk(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnLButtonDown(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnLButtonUp(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnRButtonDown(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnRButtonUp(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnMouseMove(const CFX_PointF& point, uint32_t nFlag);
	virtual bool OnMouseWheel(short zDelta,
	const CFX_PointF& point,
	uint32_t nFlag);
	virtual void OnNotify(CPWL_Wnd* pWnd,
	uint32_t msg,
	intptr_t wParam = 0,
	intptr_t lParam = 0);
	virtual void SetFocus();
	virtual void KillFocus();
	virtual void SetCursor();
	virtual void SetVisible(bool bVisible);
	virtual void SetFontSize(float fFontSize);
	virtual float GetFontSize() const;

	virtual CFX_FloatRect GetFocusRect() const;
	virtual CFX_FloatRect GetClientRect() const;

	void InvalidateFocusHandler(IPWL_FocusHandler* handler);
	void InvalidateProvider(IPWL_Provider* provider);
	void Create(const PWL_CREATEPARAM& cp);
	void Destroy();
	void Move(const CFX_FloatRect& rcNew, bool bReset, bool bRefresh);

	void SetCapture();
	void ReleaseCapture();

	void DrawAppearance(CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device);

	CPWL_Color GetBackgroundColor() const;
	void SetBackgroundColor(const CPWL_Color& color);
	CPWL_Color GetBorderColor() const;
	CPWL_Color GetTextColor() const;
	void SetTextColor(const CPWL_Color& color);
	CPWL_Color GetBorderLeftTopColor(BorderStyle nBorderStyle) const;
	CPWL_Color GetBorderRightBottomColor(BorderStyle nBorderStyle) const;

	void SetBorderStyle(BorderStyle eBorderStyle);
	BorderStyle GetBorderStyle() const;
	const CPWL_Dash& GetBorderDash() const;

	int32_t GetBorderWidth() const;
	int32_t GetInnerBorderWidth() const;
	CFX_FloatRect GetWindowRect() const;
	CFX_PointF GetCenterPoint() const;

	bool IsVisible() const { return m_bVisible; }
	bool HasFlag(uint32_t dwFlags) const;
	void AddFlag(uint32_t dwFlags);
	void RemoveFlag(uint32_t dwFlags);

	void SetClipRect(const CFX_FloatRect& rect);
	const CFX_FloatRect& GetClipRect() const;

	CPWL_Wnd* GetParentWindow() const;
	void* GetAttachedData() const;

	bool WndHitTest(const CFX_PointF& point) const;
	bool ClientHitTest(const CFX_PointF& point) const;
	bool IsCaptureMouse() const;

	void EnableWindow(bool bEnable);
	bool IsEnabled() const { return m_bEnabled; }
	const CPWL_Wnd* GetFocused() const;
	bool IsFocused() const;
	bool IsReadOnly() const;
	CPWL_ScrollBar* GetVScrollBar() const;

	IPVT_FontMap* GetFontMap() const;
	IPWL_Provider* GetProvider() const;
	IPWL_FocusHandler* GetFocusHandler() const;

	int32_t GetTransparency();
	void SetTransparency(int32_t nTransparency);

	CFX_Matrix GetChildToRoot() const;
	CFX_Matrix GetChildMatrix() const;
	void SetChildMatrix(const CFX_Matrix& mt);
	CFX_Matrix GetWindowMatrix() const;

	protected:
	friend class CPWL_MsgControl;

	// CPWL_TimerHandler
	CFX_SystemHandler* GetSystemHandler() const override;

	virtual void CreateChildWnd(const PWL_CREATEPARAM& cp);
	virtual void RePosChildWnd();
	virtual void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream);

	virtual void DrawThisAppearance(CFX_RenderDevice* pDevice,
	CFX_Matrix* pUser2Device);

	virtual void OnCreate(PWL_CREATEPARAM& cp);
	virtual void OnCreated();
	virtual void OnDestroy();

	virtual void OnSetFocus();
	virtual void OnKillFocus();

	void GetAppearanceStream(CFX_ByteTextBuf& sAppStream);
	void SetNotifyFlag(bool bNotifying = true) { m_bNotifying = bNotifying; }

	bool IsValid() const;
	const PWL_CREATEPARAM& GetCreationParam() const;
	bool IsNotifying() const { return m_bNotifying; }

	void InvalidateRectMove(const CFX_FloatRect& rcOld,
	const CFX_FloatRect& rcNew);

	bool IsWndCaptureMouse(const CPWL_Wnd* pWnd) const;
	bool IsWndCaptureKeyboard(const CPWL_Wnd* pWnd) const;
	const CPWL_Wnd* GetRootWnd() const;

	bool IsCTRLpressed(uint32_t nFlag) const;
	bool IsSHIFTpressed(uint32_t nFlag) const;
	bool IsALTpressed(uint32_t nFlag) const;

	private:
	CFX_PointF ParentToChild(const CFX_PointF& point) const;
	CFX_FloatRect ParentToChild(const CFX_FloatRect& rect) const;

	void GetChildAppearanceStream(CFX_ByteTextBuf& sAppStream);
	void DrawChildAppearance(CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device);

	FX_RECT PWLtoWnd(const CFX_FloatRect& rect) const;

	void AddChild(CPWL_Wnd* pWnd);
	void RemoveChild(CPWL_Wnd* pWnd);

	void CreateScrollBar(const PWL_CREATEPARAM& cp);
	void CreateVScrollBar(const PWL_CREATEPARAM& cp);

	void AdjustStyle();
	void CreateMsgControl();
	void DestroyMsgControl();

	CPWL_MsgControl* GetMsgControl() const;

	std::vector<CPWL_Wnd*> m_Children;
	PWL_CREATEPARAM m_sPrivateParam;
	CPWL_ScrollBar* m_pVScrollBar;
	CFX_FloatRect m_rcWindow;
	CFX_FloatRect m_rcClip;
	bool m_bCreated;
	bool m_bVisible;
	bool m_bNotifying;
	bool m_bEnabled;
	};

	#endif // FPDFSDK_PDFWINDOW_PWL_WND_H_