1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_
8 #define FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_
9 
10 #include "core/include/fpdfdoc/fpdf_doc.h"
11 #include "core/include/fxcrt/fx_basic.h"
12 #include "fpdfsdk/include/fx_systemhandler.h"
13 
14 class CPWL_MsgControl;
15 class CPWL_ScrollBar;
16 class CPWL_Timer;
17 class CPWL_TimerHandler;
18 class CPWL_Wnd;
19 class IFX_Edit_FontMap;
20 class IFX_SystemHandler;
21 class IPWL_Provider;
22 class IPWL_SpellCheck;
23 
24 // window styles
25 #define PWS_CHILD 0x80000000L
26 #define PWS_BORDER 0x40000000L
27 #define PWS_BACKGROUND 0x20000000L
28 #define PWS_HSCROLL 0x10000000L
29 #define PWS_VSCROLL 0x08000000L
30 #define PWS_VISIBLE 0x04000000L
31 #define PWS_DISABLE 0x02000000L
32 #define PWS_READONLY 0x01000000L
33 #define PWS_AUTOFONTSIZE 0x00800000L
34 #define PWS_AUTOTRANSPARENT 0x00400000L
35 #define PWS_NOREFRESHCLIP 0x00200000L
36 
37 // edit and label styles
38 #define PES_MULTILINE 0x0001L
39 #define PES_PASSWORD 0x0002L
40 #define PES_LEFT 0x0004L
41 #define PES_RIGHT 0x0008L
42 #define PES_MIDDLE 0x0010L
43 #define PES_TOP 0x0020L
44 #define PES_BOTTOM 0x0040L
45 #define PES_CENTER 0x0080L
46 #define PES_CHARARRAY 0x0100L
47 #define PES_AUTOSCROLL 0x0200L
48 #define PES_AUTORETURN 0x0400L
49 #define PES_UNDO 0x0800L
50 #define PES_RICH 0x1000L
51 #define PES_SPELLCHECK 0x2000L
52 #define PES_TEXTOVERFLOW 0x4000L
53 #define PES_NOREAD 0x8000L
54 
55 // listbox styles
56 #define PLBS_MULTIPLESEL 0x0001L
57 #define PLBS_HOVERSEL 0x0008L
58 
59 // combobox styles
60 #define PCBS_ALLOWCUSTOMTEXT 0x0001L
61 
62 // richedit styles
63 #define PRES_MULTILINE 0x0001L
64 #define PRES_AUTORETURN 0x0002L
65 #define PRES_AUTOSCROLL 0x0004L
66 #define PRES_SPELLCHECK 0x0008L
67 #define PRES_UNDO 0x0100L
68 #define PRES_MULTIPAGES 0x0200L
69 #define PRES_TEXTOVERFLOW 0x0400L
70 
71 // border style
72 #define PBS_SOLID 0
73 #define PBS_DASH 1
74 #define PBS_BEVELED 2
75 #define PBS_INSET 3
76 #define PBS_UNDERLINED 4
77 #define PBS_SHADOW 5
78 
79 // notification messages
80 #define PNM_ADDCHILD 0x00000000L
81 #define PNM_REMOVECHILD 0x00000001L
82 #define PNM_SETSCROLLINFO 0x00000002L
83 #define PNM_SETSCROLLPOS 0x00000003L
84 #define PNM_SCROLLWINDOW 0x00000004L
85 #define PNM_LBUTTONDOWN 0x00000005L
86 #define PNM_LBUTTONUP 0x00000006L
87 #define PNM_MOUSEMOVE 0x00000007L
88 #define PNM_NOTERESET 0x00000008L
89 #define PNM_SETCARETINFO 0x00000009L
90 #define PNM_SELCHANGED 0x0000000AL
91 #define PNM_NOTEEDITCHANGED 0x0000000BL
92 
93 #define PWL_CLASSNAME_EDIT "CPWL_Edit"
94 
95 struct CPWL_Dash {
CPWL_DashCPWL_Dash96   CPWL_Dash(int32_t dash, int32_t gap, int32_t phase)
97       : nDash(dash), nGap(gap), nPhase(phase) {}
98 
99   int32_t nDash;
100   int32_t nGap;
101   int32_t nPhase;
102 };
103 
104 struct CPWL_Color {
105   CPWL_Color(int32_t type = COLORTYPE_TRANSPARENT,
106              FX_FLOAT color1 = 0.0f,
107              FX_FLOAT color2 = 0.0f,
108              FX_FLOAT color3 = 0.0f,
109              FX_FLOAT color4 = 0.0f)
nColorTypeCPWL_Color110       : nColorType(type),
111         fColor1(color1),
112         fColor2(color2),
113         fColor3(color3),
114         fColor4(color4) {}
115 
CPWL_ColorCPWL_Color116   CPWL_Color(int32_t r, int32_t g, int32_t b)
117       : nColorType(COLORTYPE_RGB),
118         fColor1(r / 255.0f),
119         fColor2(g / 255.0f),
120         fColor3(b / 255.0f),
121         fColor4(0) {}
122 
123   void ConvertColorType(int32_t other_nColorType);
124 
125   /*
126   COLORTYPE_TRANSPARENT
127   COLORTYPE_RGB
128   COLORTYPE_CMYK
129   COLORTYPE_GRAY
130   */
131   int32_t nColorType;
132   FX_FLOAT fColor1, fColor2, fColor3, fColor4;
133 };
134 
135 inline FX_BOOL operator==(const CPWL_Color& c1, const CPWL_Color& c2) {
136   return c1.nColorType == c2.nColorType && c1.fColor1 - c2.fColor1 < 0.0001 &&
137          c1.fColor1 - c2.fColor1 > -0.0001 &&
138          c1.fColor2 - c2.fColor2 < 0.0001 &&
139          c1.fColor2 - c2.fColor2 > -0.0001 &&
140          c1.fColor3 - c2.fColor3 < 0.0001 &&
141          c1.fColor3 - c2.fColor3 > -0.0001 &&
142          c1.fColor4 - c2.fColor4 < 0.0001 && c1.fColor4 - c2.fColor4 > -0.0001;
143 }
144 
145 inline FX_BOOL operator!=(const CPWL_Color& c1, const CPWL_Color& c2) {
146   return !operator==(c1, c2);
147 }
148 
149 #define PWL_SCROLLBAR_WIDTH 12.0f
150 #define PWL_SCROLLBAR_BUTTON_WIDTH 9.0f
151 #define PWL_SCROLLBAR_POSBUTTON_MINWIDTH 2.0f
152 #define PWL_SCROLLBAR_TRANSPARANCY 150
153 #define PWL_SCROLLBAR_BKCOLOR \
154   CPWL_Color(COLORTYPE_RGB, 220.0f / 255.0f, 220.0f / 255.0f, 220.0f / 255.0f)
155 #define PWL_DEFAULT_SELTEXTCOLOR CPWL_Color(COLORTYPE_RGB, 1, 1, 1)
156 #define PWL_DEFAULT_SELBACKCOLOR \
157   CPWL_Color(COLORTYPE_RGB, 0, 51.0f / 255.0f, 113.0f / 255.0f)
158 #define PWL_DEFAULT_BACKCOLOR PWL_DEFAULT_SELTEXTCOLOR
159 #define PWL_DEFAULT_TEXTCOLOR CPWL_Color(COLORTYPE_RGB, 0, 0, 0)
160 #define PWL_DEFAULT_FONTSIZE 9.0f
161 #define PWL_DEFAULT_BLACKCOLOR CPWL_Color(COLORTYPE_GRAY, 0)
162 #define PWL_DEFAULT_WHITECOLOR CPWL_Color(COLORTYPE_GRAY, 1)
163 #define PWL_DEFAULT_HEAVYGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.50)
164 #define PWL_DEFAULT_LIGHTGRAYCOLOR CPWL_Color(COLORTYPE_GRAY, 0.75)
165 #define PWL_TRIANGLE_HALFLEN 2.0f
166 #define PWL_CBBUTTON_TRIANGLE_HALFLEN 3.0f
167 #define PWL_INVALIDATE_INFLATE 2
168 
169 class IPWL_SpellCheck {
170  public:
~IPWL_SpellCheck()171   virtual ~IPWL_SpellCheck() {}
172   virtual FX_BOOL CheckWord(const FX_CHAR* sWord) = 0;
173   virtual void SuggestWords(const FX_CHAR* sWord,
174                             CFX_ByteStringArray& sSuggest) = 0;
175 };
176 
177 class IPWL_Provider {
178  public:
~IPWL_Provider()179   virtual ~IPWL_Provider() {}
180 
181   // get a matrix which map user space to CWnd client space
182   virtual CFX_Matrix GetWindowMatrix(void* pAttachedData) = 0;
183 
184   /*
185   0 L"&Undo\tCtrl+Z"
186   1 L"&Redo\tCtrl+Shift+Z"
187   2 L"Cu&t\tCtrl+X"
188   3 L"&Copy\tCtrl+C"
189   4 L"&Paste\tCtrl+V"
190   5 L"&Delete"
191   6  L"&Select All\tCtrl+A"
192   */
193   virtual CFX_WideString LoadPopupMenuString(int32_t nIndex) = 0;
194 };
195 
196 class IPWL_FocusHandler {
197  public:
~IPWL_FocusHandler()198   virtual ~IPWL_FocusHandler() {}
199   virtual void OnSetFocus(CPWL_Wnd* pWnd) = 0;
200   virtual void OnKillFocus(CPWL_Wnd* pWnd) = 0;
201 };
202 
203 struct PWL_CREATEPARAM {
204  public:
PWL_CREATEPARAMPWL_CREATEPARAM205   PWL_CREATEPARAM()
206       : rcRectWnd(0, 0, 0, 0),
207         pSystemHandler(NULL),
208         pFontMap(NULL),
209         pProvider(NULL),
210         pFocusHandler(NULL),
211         dwFlags(0),
212         sBackgroundColor(),
213         hAttachedWnd(NULL),
214         pSpellCheck(NULL),
215         nBorderStyle(PBS_SOLID),
216         dwBorderWidth(1),
217         sBorderColor(),
218         sTextColor(),
219         sTextStrokeColor(),
220         nTransparency(255),
221         fFontSize(PWL_DEFAULT_FONTSIZE),
222         sDash(3, 0, 0),
223         pAttachedData(NULL),
224         pParentWnd(NULL),
225         pMsgControl(NULL),
226         eCursorType(FXCT_ARROW),
227         mtChild(1, 0, 0, 1, 0, 0) {}
228 
229   CPDF_Rect rcRectWnd;                // required
230   IFX_SystemHandler* pSystemHandler;  // required
231   IFX_Edit_FontMap* pFontMap;         // required for text window
232   IPWL_Provider* pProvider;           // required for self coordinate
233   IPWL_FocusHandler* pFocusHandler;   // optional
234   FX_DWORD dwFlags;                   // optional
235   CPWL_Color sBackgroundColor;        // optional
236   FX_HWND hAttachedWnd;               // required for no-reader framework
237   IPWL_SpellCheck* pSpellCheck;       // required for spellchecking
238   int32_t nBorderStyle;               // optional
239   int32_t dwBorderWidth;              // optional
240   CPWL_Color sBorderColor;            // optional
241   CPWL_Color sTextColor;              // optional
242   CPWL_Color sTextStrokeColor;        // optional
243   int32_t nTransparency;              // optional
244   FX_FLOAT fFontSize;                 // optional
245   CPWL_Dash sDash;                    // optional
246   void* pAttachedData;                // optional
247   CPWL_Wnd* pParentWnd;               // ignore
248   CPWL_MsgControl* pMsgControl;       // ignore
249   int32_t eCursorType;                // ignore
250   CFX_Matrix mtChild;                 // ignore
251 };
252 
253 class CPWL_Timer {
254  public:
255   CPWL_Timer(CPWL_TimerHandler* pAttached, IFX_SystemHandler* pSystemHandler);
256   virtual ~CPWL_Timer();
257 
258   int32_t SetPWLTimer(int32_t nElapse);
259   void KillPWLTimer();
260   static void TimerProc(int32_t idEvent);
261 
262  private:
263   int32_t m_nTimerID;
264   CPWL_TimerHandler* m_pAttached;
265   IFX_SystemHandler* m_pSystemHandler;
266 };
267 
268 class CPWL_TimerHandler {
269  public:
270   CPWL_TimerHandler();
271   virtual ~CPWL_TimerHandler();
272 
273   void BeginTimer(int32_t nElapse);
274   void EndTimer();
275   virtual void TimerProc();
276   virtual IFX_SystemHandler* GetSystemHandler() const = 0;
277 
278  private:
279   CPWL_Timer* m_pTimer;
280 };
281 
282 class CPWL_Wnd : public CPWL_TimerHandler {
283   friend class CPWL_MsgControl;
284 
285  public:
286   CPWL_Wnd();
287   ~CPWL_Wnd() override;
288 
289   void Create(const PWL_CREATEPARAM& cp);
290   virtual CFX_ByteString GetClassName() const;
291   void InvalidateFocusHandler(IPWL_FocusHandler* handler);
292   void InvalidateProvider(IPWL_Provider* provider);
293   void Destroy();
294   void Move(const CPDF_Rect& rcNew, FX_BOOL bReset, FX_BOOL bRefresh);
295   virtual void InvalidateRect(CPDF_Rect* pRect = NULL);
296 
297   void DrawAppearance(CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device);
298 
299   virtual FX_BOOL OnKeyDown(FX_WORD nChar, FX_DWORD nFlag);
300   virtual FX_BOOL OnKeyUp(FX_WORD nChar, FX_DWORD nFlag);
301   virtual FX_BOOL OnChar(FX_WORD nChar, FX_DWORD nFlag);
302   virtual FX_BOOL OnLButtonDblClk(const CPDF_Point& point, FX_DWORD nFlag);
303   virtual FX_BOOL OnLButtonDown(const CPDF_Point& point, FX_DWORD nFlag);
304   virtual FX_BOOL OnLButtonUp(const CPDF_Point& point, FX_DWORD nFlag);
305   virtual FX_BOOL OnMButtonDblClk(const CPDF_Point& point, FX_DWORD nFlag);
306   virtual FX_BOOL OnMButtonDown(const CPDF_Point& point, FX_DWORD nFlag);
307   virtual FX_BOOL OnMButtonUp(const CPDF_Point& point, FX_DWORD nFlag);
308   virtual FX_BOOL OnRButtonDown(const CPDF_Point& point, FX_DWORD nFlag);
309   virtual FX_BOOL OnRButtonUp(const CPDF_Point& point, FX_DWORD nFlag);
310   virtual FX_BOOL OnMouseMove(const CPDF_Point& point, FX_DWORD nFlag);
311   virtual FX_BOOL OnMouseWheel(short zDelta,
312                                const CPDF_Point& point,
313                                FX_DWORD nFlag);
314 
315   virtual void SetFocus();
316   virtual void KillFocus();
317   void SetCapture();
318   void ReleaseCapture();
319 
320   virtual void OnNotify(CPWL_Wnd* pWnd,
321                         FX_DWORD msg,
322                         intptr_t wParam = 0,
323                         intptr_t lParam = 0);
324   virtual void SetTextColor(const CPWL_Color& color);
325   virtual void SetTextStrokeColor(const CPWL_Color& color);
326   virtual void SetVisible(FX_BOOL bVisible);
327 
328   virtual CPDF_Rect GetFocusRect() const;
329   virtual CPWL_Color GetBackgroundColor() const;
330   virtual CPWL_Color GetBorderColor() const;
331   virtual CPWL_Color GetTextColor() const;
332   virtual CPWL_Color GetTextStrokeColor() const;
333   virtual FX_FLOAT GetFontSize() const;
334   virtual int32_t GetInnerBorderWidth() const;
335   virtual CPWL_Color GetBorderLeftTopColor(int32_t nBorderStyle) const;
336   virtual CPWL_Color GetBorderRightBottomColor(int32_t nBorderStyle) const;
337 
338   virtual void SetFontSize(FX_FLOAT fFontSize);
339 
340   void SetBackgroundColor(const CPWL_Color& color);
341   void SetClipRect(const CPDF_Rect& rect);
342   void SetBorderStyle(int32_t eBorderStyle);
343 
344   virtual CPDF_Rect GetWindowRect() const;
345   virtual CPDF_Rect GetClientRect() const;
346   CPDF_Point GetCenterPoint() const;
347   int32_t GetBorderWidth() const;
IsVisible()348   FX_BOOL IsVisible() const { return m_bVisible; }
349   FX_BOOL HasFlag(FX_DWORD dwFlags) const;
350   void AddFlag(FX_DWORD dwFlags);
351   void RemoveFlag(FX_DWORD dwFlags);
352   const CPDF_Rect& GetClipRect() const;
353   CPWL_Wnd* GetParentWindow() const;
354   int32_t GetBorderStyle() const;
355   const CPWL_Dash& GetBorderDash() const;
356   void* GetAttachedData() const;
357 
358   FX_BOOL WndHitTest(const CPDF_Point& point) const;
359   FX_BOOL ClientHitTest(const CPDF_Point& point) const;
360   FX_BOOL IsCaptureMouse() const;
361 
362   const CPWL_Wnd* GetFocused() const;
363   FX_BOOL IsFocused() const;
364   FX_BOOL IsReadOnly() const;
365   CPWL_ScrollBar* GetVScrollBar() const;
366 
367   IFX_Edit_FontMap* GetFontMap() const;
368   IPWL_Provider* GetProvider() const;
369   IPWL_FocusHandler* GetFocusHandler() const;
370 
371   int32_t GetTransparency();
372   void SetTransparency(int32_t nTransparency);
373 
374   CFX_Matrix GetChildToRoot() const;
375   CFX_Matrix GetChildMatrix() const;
376   void SetChildMatrix(const CFX_Matrix& mt);
377   CFX_Matrix GetWindowMatrix() const;
378 
379   virtual CPDF_Point ChildToParent(const CPDF_Point& point) const;
380   virtual CPDF_Rect ChildToParent(const CPDF_Rect& rect) const;
381   virtual CPDF_Point ParentToChild(const CPDF_Point& point) const;
382   virtual CPDF_Rect ParentToChild(const CPDF_Rect& rect) const;
383 
384   // those methods only implemented by listctrl item
GetItemHeight(FX_FLOAT fLimitWidth)385   virtual FX_FLOAT GetItemHeight(FX_FLOAT fLimitWidth) { return 0; }
GetItemLeftMargin()386   virtual FX_FLOAT GetItemLeftMargin() { return 0; }
GetItemRightMargin()387   virtual FX_FLOAT GetItemRightMargin() { return 0; }
388 
389   void EnableWindow(FX_BOOL bEnable);
390   FX_BOOL IsEnabled();
391   virtual void SetCursor();
392 
393  protected:
394   // CPWL_TimerHandler
395   IFX_SystemHandler* GetSystemHandler() const override;
396 
397   virtual void CreateChildWnd(const PWL_CREATEPARAM& cp);
398   virtual void RePosChildWnd();
399   void GetAppearanceStream(CFX_ByteTextBuf& sAppStream);
400   virtual void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream);
401   virtual void GetChildAppearanceStream(CFX_ByteTextBuf& sAppStream);
402 
403   virtual void DrawThisAppearance(CFX_RenderDevice* pDevice,
404                                   CFX_Matrix* pUser2Device);
405   virtual void DrawChildAppearance(CFX_RenderDevice* pDevice,
406                                    CFX_Matrix* pUser2Device);
407 
408   virtual void OnCreate(PWL_CREATEPARAM& cp);
409   virtual void OnCreated();
410   virtual void OnDestroy();
411 
412   virtual void OnSetFocus();
413   virtual void OnKillFocus();
414 
415   virtual void OnEnabled();
416   virtual void OnDisabled();
417 
418   void SetNotifyFlag(FX_BOOL bNotifying = TRUE) { m_bNotifying = bNotifying; }
419 
420   FX_BOOL IsValid() const;
421   const PWL_CREATEPARAM& GetCreationParam() const;
IsNotifying()422   FX_BOOL IsNotifying() const { return m_bNotifying; }
423 
424   void InvalidateRectMove(const CPDF_Rect& rcOld, const CPDF_Rect& rcNew);
425 
426   void PWLtoWnd(const CPDF_Point& point, int32_t& x, int32_t& y) const;
427   FX_RECT PWLtoWnd(const CPDF_Rect& rect) const;
428   FX_HWND GetAttachedHWnd() const;
429 
430   FX_BOOL IsWndCaptureMouse(const CPWL_Wnd* pWnd) const;
431   FX_BOOL IsWndCaptureKeyboard(const CPWL_Wnd* pWnd) const;
432   const CPWL_Wnd* GetRootWnd() const;
433 
434   FX_BOOL IsCTRLpressed(FX_DWORD nFlag) const;
435   FX_BOOL IsSHIFTpressed(FX_DWORD nFlag) const;
436   FX_BOOL IsALTpressed(FX_DWORD nFlag) const;
437   FX_BOOL IsINSERTpressed(FX_DWORD nFlag) const;
438 
439  private:
440   void AddChild(CPWL_Wnd* pWnd);
441   void RemoveChild(CPWL_Wnd* pWnd);
442 
443   void CreateScrollBar(const PWL_CREATEPARAM& cp);
444   void CreateVScrollBar(const PWL_CREATEPARAM& cp);
445 
446   void AdjustStyle();
447   void CreateMsgControl();
448   void DestroyMsgControl();
449 
450   CPWL_MsgControl* GetMsgControl() const;
451 
452  protected:
453   CFX_ArrayTemplate<CPWL_Wnd*> m_aChildren;
454 
455  private:
456   PWL_CREATEPARAM m_sPrivateParam;
457 
458   CPWL_ScrollBar* m_pVScrollBar;
459 
460   CPDF_Rect m_rcWindow;
461   CPDF_Rect m_rcClip;
462 
463   FX_BOOL m_bCreated;
464   FX_BOOL m_bVisible;
465   FX_BOOL m_bNotifying;
466   FX_BOOL m_bEnabled;
467 };
468 
469 #endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_
470