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 #include "../../include/pdfwindow/PDFWindow.h"
8 #include "../../include/pdfwindow/PWL_Wnd.h"
9 #include "../../include/pdfwindow/PWL_ListBox.h"
10 #include "../../include/pdfwindow/PWL_Utils.h"
11 #include "../../include/pdfwindow/PWL_ScrollBar.h"
12 #include "../../include/pdfwindow/PWL_EditCtrl.h"
13 #include "../../include/pdfwindow/PWL_Edit.h"
14
15 #define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
16 #define IsFloatBigger(fa,fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
17 #define IsFloatSmaller(fa,fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
18 #define IsFloatEqual(fa,fb) IsFloatZero((fa)-(fb))
19
20 /* ------------------------ CPWL_List_Notify ----------------------- */
21
CPWL_List_Notify(CPWL_ListBox * pList)22 CPWL_List_Notify::CPWL_List_Notify(CPWL_ListBox* pList) : m_pList(pList)
23 {
24 ASSERT(m_pList != NULL);
25 }
26
~CPWL_List_Notify()27 CPWL_List_Notify::~CPWL_List_Notify()
28 {
29 }
30
IOnSetScrollInfoY(FX_FLOAT fPlateMin,FX_FLOAT fPlateMax,FX_FLOAT fContentMin,FX_FLOAT fContentMax,FX_FLOAT fSmallStep,FX_FLOAT fBigStep)31 void CPWL_List_Notify::IOnSetScrollInfoY(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax,
32 FX_FLOAT fContentMin, FX_FLOAT fContentMax,
33 FX_FLOAT fSmallStep, FX_FLOAT fBigStep)
34 {
35 PWL_SCROLL_INFO Info;
36
37 Info.fPlateWidth = fPlateMax - fPlateMin;
38 Info.fContentMin = fContentMin;
39 Info.fContentMax = fContentMax;
40 Info.fSmallStep = fSmallStep;
41 Info.fBigStep = fBigStep;
42
43 m_pList->OnNotify(m_pList,PNM_SETSCROLLINFO,SBT_VSCROLL,(FX_INTPTR)&Info);
44
45 if (CPWL_ScrollBar * pScroll = m_pList->GetVScrollBar())
46 {
47 if (IsFloatBigger(Info.fPlateWidth,Info.fContentMax-Info.fContentMin)
48 || IsFloatEqual(Info.fPlateWidth,Info.fContentMax-Info.fContentMin))
49 {
50 if (pScroll->IsVisible())
51 {
52 pScroll->SetVisible(FALSE);
53 m_pList->RePosChildWnd();
54 }
55 }
56 else
57 {
58 if (!pScroll->IsVisible())
59 {
60 pScroll->SetVisible(TRUE);
61 m_pList->RePosChildWnd();
62 }
63 }
64 }
65 }
66
IOnSetScrollPosY(FX_FLOAT fy)67 void CPWL_List_Notify::IOnSetScrollPosY(FX_FLOAT fy)
68 {
69 m_pList->OnNotify(m_pList,PNM_SETSCROLLPOS,SBT_VSCROLL,(FX_INTPTR)&fy);
70 }
71
IOnInvalidateRect(CPDF_Rect * pRect)72 void CPWL_List_Notify::IOnInvalidateRect(CPDF_Rect * pRect)
73 {
74 m_pList->InvalidateRect(pRect);
75 }
76
77 /* --------------------------- CPWL_ListBox ---------------------------- */
78
CPWL_ListBox()79 CPWL_ListBox::CPWL_ListBox() :
80 m_pList(NULL),
81 m_pListNotify(NULL),
82 m_bMouseDown(FALSE),
83 m_bHoverSel(FALSE),
84 m_pFillerNotify(NULL)
85 {
86 m_pList = IFX_List::NewList();
87
88 ASSERT(m_pList != NULL);
89 }
90
~CPWL_ListBox()91 CPWL_ListBox::~CPWL_ListBox()
92 {
93 IFX_List::DelList(m_pList);
94
95 if (m_pListNotify)
96 {
97 delete m_pListNotify;
98 m_pListNotify = NULL;
99 }
100 }
101
GetClassName() const102 CFX_ByteString CPWL_ListBox::GetClassName() const
103 {
104 return "CPWL_ListBox";
105 }
106
OnCreated()107 void CPWL_ListBox::OnCreated()
108 {
109 if (m_pList)
110 {
111 if (m_pListNotify) delete m_pListNotify;
112
113 m_pList->SetFontMap(GetFontMap());
114 m_pList->SetNotify(m_pListNotify = new CPWL_List_Notify(this));
115
116 SetHoverSel(HasFlag(PLBS_HOVERSEL));
117 m_pList->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL));
118 m_pList->SetFontSize(this->GetCreationParam().fFontSize);
119
120 m_bHoverSel = HasFlag(PLBS_HOVERSEL);
121 }
122 }
123
OnDestroy()124 void CPWL_ListBox::OnDestroy()
125 {
126 if (m_pListNotify)
127 {
128 delete m_pListNotify;
129 m_pListNotify = NULL;
130 }
131 }
132
GetThisAppearanceStream(CFX_ByteTextBuf & sAppStream)133 void CPWL_ListBox::GetThisAppearanceStream(CFX_ByteTextBuf & sAppStream)
134 {
135 CPWL_Wnd::GetThisAppearanceStream(sAppStream);
136
137 CFX_ByteTextBuf sListItems;
138
139 if (m_pList)
140 {
141 CPDF_Rect rcPlate = m_pList->GetPlateRect();
142 for (FX_INT32 i=0,sz=m_pList->GetCount(); i<sz; i++)
143 {
144 CPDF_Rect rcItem = m_pList->GetItemRect(i);
145
146 if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom) continue;
147
148 CPDF_Point ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
149 if (m_pList->IsItemSelected(i))
150 {
151 sListItems << CPWL_Utils::GetRectFillAppStream(rcItem,PWL_DEFAULT_SELBACKCOLOR);
152 CFX_ByteString sItem = CPWL_Utils::GetEditAppStream(m_pList->GetItemEdit(i), ptOffset);
153 if (sItem.GetLength() > 0)
154 {
155 sListItems << "BT\n" << CPWL_Utils::GetColorAppStream(PWL_DEFAULT_SELTEXTCOLOR) << sItem << "ET\n";
156 }
157 }
158 else
159 {
160 CFX_ByteString sItem = CPWL_Utils::GetEditAppStream(m_pList->GetItemEdit(i), ptOffset);
161 if (sItem.GetLength() > 0)
162 {
163 sListItems << "BT\n" << CPWL_Utils::GetColorAppStream(GetTextColor()) << sItem << "ET\n";
164 }
165 }
166 }
167 }
168
169 if (sListItems.GetLength() > 0)
170 {
171 CFX_ByteTextBuf sClip;
172 CPDF_Rect rcClient = this->GetClientRect();
173
174 sClip << "q\n";
175 sClip << rcClient.left << " " << rcClient.bottom << " "
176 << rcClient.right - rcClient.left << " " << rcClient.top - rcClient.bottom << " re W n\n";
177
178 sClip << sListItems << "Q\n";
179
180 sAppStream << "/Tx BMC\n" << sClip << "EMC\n";
181 }
182 }
183
DrawThisAppearance(CFX_RenderDevice * pDevice,CPDF_Matrix * pUser2Device)184 void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device)
185 {
186 CPWL_Wnd::DrawThisAppearance(pDevice,pUser2Device);
187
188 if (m_pList)
189 {
190 CPDF_Rect rcPlate = m_pList->GetPlateRect();
191 CPDF_Rect rcList = GetListRect();
192 CPDF_Rect rcClient = GetClientRect();
193
194 for (FX_INT32 i=0,sz=m_pList->GetCount(); i<sz; i++)
195 {
196 CPDF_Rect rcItem = m_pList->GetItemRect(i);
197 if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom) continue;
198
199 CPDF_Point ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
200 if (IFX_Edit* pEdit = m_pList->GetItemEdit(i))
201 {
202 CPDF_Rect rcContent = pEdit->GetContentRect();
203 if (rcContent.Width() > rcClient.Width())
204 rcItem.Intersect(rcList);
205 else
206 rcItem.Intersect(rcClient);
207 }
208
209 if (m_pList->IsItemSelected(i))
210 {
211 // CPWL_Utils::DrawFillRect(pDevice, pUser2Device, rcItem, ArgbEncode(255,0,51,113));
212 IFX_SystemHandler* pSysHandler = GetSystemHandler();
213 if(pSysHandler && pSysHandler->IsSelectionImplemented())
214 {
215 IFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i), CPWL_Utils::PWLColorToFXColor(GetTextColor()), CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()),
216 rcList, ptOffset, NULL,pSysHandler, m_pFormFiller);
217 pSysHandler->OutputSelectedRect(m_pFormFiller, rcItem);
218 }
219 else
220 {
221 CPWL_Utils::DrawFillRect(pDevice, pUser2Device, rcItem, ArgbEncode(255,0,51,113));
222 IFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i), ArgbEncode(255,255,255,255), 0,
223 rcList, ptOffset, NULL, pSysHandler, m_pFormFiller);
224 }
225 }
226 else
227 {
228 IFX_SystemHandler* pSysHandler = GetSystemHandler();
229 IFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
230 CPWL_Utils::PWLColorToFXColor(GetTextColor()),
231 CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()),
232 rcList, ptOffset, NULL,pSysHandler, NULL);
233
234 }
235 }
236 }
237 }
238
OnKeyDown(FX_WORD nChar,FX_DWORD nFlag)239 FX_BOOL CPWL_ListBox::OnKeyDown(FX_WORD nChar, FX_DWORD nFlag)
240 {
241 CPWL_Wnd::OnKeyDown(nChar, nFlag);
242
243 if (!m_pList) return FALSE;
244
245 switch (nChar)
246 {
247 default:
248 return FALSE;
249 case FWL_VKEY_Up:
250 case FWL_VKEY_Down:
251 case FWL_VKEY_Home:
252 case FWL_VKEY_Left:
253 case FWL_VKEY_End:
254 case FWL_VKEY_Right:
255 break;
256 }
257
258 switch (nChar)
259 {
260 case FWL_VKEY_Up:
261 m_pList->OnVK_UP(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
262 break;
263 case FWL_VKEY_Down:
264 m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
265 break;
266 case FWL_VKEY_Home:
267 m_pList->OnVK_HOME(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
268 break;
269 case FWL_VKEY_Left:
270 m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
271 break;
272 case FWL_VKEY_End:
273 m_pList->OnVK_END(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
274 break;
275 case FWL_VKEY_Right:
276 m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
277 break;
278 case FWL_VKEY_Delete:
279 break;
280 }
281
282 FX_BOOL bExit = FALSE;
283 OnNotifySelChanged(TRUE,bExit,nFlag);
284
285 return TRUE;
286 }
287
OnChar(FX_WORD nChar,FX_DWORD nFlag)288 FX_BOOL CPWL_ListBox::OnChar(FX_WORD nChar, FX_DWORD nFlag)
289 {
290 CPWL_Wnd::OnChar(nChar,nFlag);
291
292 if (!m_pList) return FALSE;
293
294 if (!m_pList->OnChar(nChar,IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag))) return FALSE;
295
296 FX_BOOL bExit = FALSE;
297 OnNotifySelChanged(TRUE,bExit, nFlag);
298
299 return TRUE;
300 }
301
OnLButtonDown(const CPDF_Point & point,FX_DWORD nFlag)302 FX_BOOL CPWL_ListBox::OnLButtonDown(const CPDF_Point & point, FX_DWORD nFlag)
303 {
304 CPWL_Wnd::OnLButtonDown(point,nFlag);
305
306 if (ClientHitTest(point))
307 {
308 m_bMouseDown = TRUE;
309 SetFocus();
310 SetCapture();
311
312 if (m_pList)
313 m_pList->OnMouseDown(point,IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
314 }
315
316 return TRUE;
317 }
318
OnLButtonUp(const CPDF_Point & point,FX_DWORD nFlag)319 FX_BOOL CPWL_ListBox::OnLButtonUp(const CPDF_Point & point, FX_DWORD nFlag)
320 {
321 CPWL_Wnd::OnLButtonUp(point,nFlag);
322
323 if (m_bMouseDown)
324 {
325 ReleaseCapture();
326 m_bMouseDown = FALSE;
327 }
328
329 FX_BOOL bExit = FALSE;
330 OnNotifySelChanged(FALSE,bExit,nFlag);
331
332 return TRUE;
333 }
334
SetHoverSel(FX_BOOL bHoverSel)335 void CPWL_ListBox::SetHoverSel(FX_BOOL bHoverSel)
336 {
337 m_bHoverSel = bHoverSel;
338 }
339
OnMouseMove(const CPDF_Point & point,FX_DWORD nFlag)340 FX_BOOL CPWL_ListBox::OnMouseMove(const CPDF_Point & point, FX_DWORD nFlag)
341 {
342 CPWL_Wnd::OnMouseMove(point, nFlag);
343
344 if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point))
345 {
346 if (m_pList)
347 m_pList->Select(m_pList->GetItemIndex(point));
348 }
349
350 if (m_bMouseDown)
351 {
352 if (m_pList)
353 m_pList->OnMouseMove(point,IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
354 }
355
356 return TRUE;
357 }
358
OnNotify(CPWL_Wnd * pWnd,FX_DWORD msg,FX_INTPTR wParam,FX_INTPTR lParam)359 void CPWL_ListBox::OnNotify(CPWL_Wnd* pWnd, FX_DWORD msg, FX_INTPTR wParam, FX_INTPTR lParam)
360 {
361 CPWL_Wnd::OnNotify(pWnd,msg,wParam,lParam);
362
363 FX_FLOAT fPos;
364
365 switch (msg)
366 {
367 case PNM_SETSCROLLINFO:
368 switch (wParam)
369 {
370 case SBT_VSCROLL:
371 if (CPWL_Wnd * pChild = GetVScrollBar())
372 {
373 pChild->OnNotify(pWnd,PNM_SETSCROLLINFO,wParam,lParam);
374 }
375 break;
376 }
377 break;
378 case PNM_SETSCROLLPOS:
379 switch (wParam)
380 {
381 case SBT_VSCROLL:
382 if (CPWL_Wnd * pChild = GetVScrollBar())
383 {
384 pChild->OnNotify(pWnd,PNM_SETSCROLLPOS,wParam,lParam);
385 }
386 break;
387 }
388 break;
389 case PNM_SCROLLWINDOW:
390 fPos = *(FX_FLOAT*)lParam;
391 switch (wParam)
392 {
393 case SBT_VSCROLL:
394 if (m_pList)
395 m_pList->SetScrollPos(CPDF_Point(0,fPos));
396 break;
397 }
398 break;
399 }
400 }
401
KillFocus()402 void CPWL_ListBox::KillFocus()
403 {
404 CPWL_Wnd::KillFocus();
405
406 /*
407 if (this->IsMultipleSel())
408 {
409 for(FX_INT32 i=0;i<this->GetCount();i++)
410 {
411 if (this->IsListItemSelected(i))
412 {
413 if (!IsListItemVisible(i))
414 this->ScrollToListItem(i);
415 break;
416 }
417 }
418 }
419 else
420 {
421 if (!IsListItemVisible(this->GetCurSel()))
422 this->ScrollToListItem(this->GetCurSel());
423 }
424
425 SetListItemCaret(m_nCaretIndex,FALSE);
426 */
427 }
428
RePosChildWnd()429 void CPWL_ListBox::RePosChildWnd()
430 {
431 CPWL_Wnd::RePosChildWnd();
432
433 if (m_pList)
434 m_pList->SetPlateRect(GetListRect());
435 }
436
OnNotifySelChanged(FX_BOOL bKeyDown,FX_BOOL & bExit,FX_DWORD nFlag)437 void CPWL_ListBox::OnNotifySelChanged(FX_BOOL bKeyDown, FX_BOOL & bExit, FX_DWORD nFlag)
438 {
439 if (m_pFillerNotify)
440 {
441 FX_BOOL bRC = TRUE;
442 CFX_WideString swChange = GetText();
443 CFX_WideString strChangeEx;
444 int nSelStart = 0;
445 int nSelEnd = swChange.GetLength();
446 m_pFillerNotify->OnBeforeKeyStroke(FALSE, GetAttachedData(), 0, swChange, strChangeEx, nSelStart, nSelEnd, bKeyDown, bRC, bExit, nFlag);
447 if (bExit) return;
448
449 m_pFillerNotify->OnAfterKeyStroke(FALSE, GetAttachedData(), bExit,nFlag);
450 }
451 }
452
GetFocusRect() const453 CPDF_Rect CPWL_ListBox::GetFocusRect() const
454 {
455 if (m_pList && m_pList->IsMultipleSel())
456 {
457 CPDF_Rect rcCaret = m_pList->GetItemRect(m_pList->GetCaret());
458 rcCaret.Intersect(GetClientRect());
459 return rcCaret;
460 }
461
462 return CPWL_Wnd::GetFocusRect();
463 }
464
AddString(FX_LPCWSTR string)465 void CPWL_ListBox::AddString(FX_LPCWSTR string)
466 {
467 if (m_pList)
468 {
469 m_pList->AddString(string);
470 }
471 }
472
SetText(FX_LPCWSTR csText,FX_BOOL bRefresh)473 void CPWL_ListBox::SetText(FX_LPCWSTR csText,FX_BOOL bRefresh)
474 {
475 //return CPDF_List::SetText(csText,bRefresh);
476 }
477
GetText() const478 CFX_WideString CPWL_ListBox::GetText() const
479 {
480 if (m_pList)
481 return m_pList->GetText();
482
483 return L"";
484 }
485
SetFontSize(FX_FLOAT fFontSize)486 void CPWL_ListBox::SetFontSize(FX_FLOAT fFontSize)
487 {
488 if (m_pList)
489 m_pList->SetFontSize(fFontSize);
490 }
491
GetFontSize() const492 FX_FLOAT CPWL_ListBox::GetFontSize() const
493 {
494 if (m_pList)
495 return m_pList->GetFontSize();
496 return 0.0f;
497 }
498
Select(FX_INT32 nItemIndex)499 void CPWL_ListBox::Select(FX_INT32 nItemIndex)
500 {
501 if (m_pList)
502 m_pList->Select(nItemIndex);
503 }
504
SetCaret(FX_INT32 nItemIndex)505 void CPWL_ListBox::SetCaret(FX_INT32 nItemIndex)
506 {
507 if (m_pList)
508 m_pList->SetCaret(nItemIndex);
509 }
510
SetTopVisibleIndex(FX_INT32 nItemIndex)511 void CPWL_ListBox::SetTopVisibleIndex(FX_INT32 nItemIndex)
512 {
513 if (m_pList)
514 m_pList->SetTopItem(nItemIndex);
515 }
516
ScrollToListItem(FX_INT32 nItemIndex)517 void CPWL_ListBox::ScrollToListItem(FX_INT32 nItemIndex)
518 {
519 if (m_pList)
520 m_pList->ScrollToListItem(nItemIndex);
521 }
522
ResetContent()523 void CPWL_ListBox::ResetContent()
524 {
525 if (m_pList)
526 m_pList->Empty();
527 }
528
Reset()529 void CPWL_ListBox::Reset()
530 {
531 if (m_pList)
532 m_pList->Cancel();
533 }
534
IsMultipleSel() const535 FX_BOOL CPWL_ListBox::IsMultipleSel() const
536 {
537 if (m_pList)
538 return m_pList->IsMultipleSel();
539
540 return FALSE;
541 }
542
GetCaretIndex() const543 FX_INT32 CPWL_ListBox::GetCaretIndex() const
544 {
545 if (m_pList)
546 return m_pList->GetCaret();
547
548 return -1;
549 }
550
GetCurSel() const551 FX_INT32 CPWL_ListBox::GetCurSel() const
552 {
553 if (m_pList)
554 return m_pList->GetSelect();
555
556 return -1;
557 }
558
IsItemSelected(FX_INT32 nItemIndex) const559 FX_BOOL CPWL_ListBox::IsItemSelected(FX_INT32 nItemIndex) const
560 {
561 if (m_pList)
562 return m_pList->IsItemSelected(nItemIndex);
563
564 return FALSE;
565 }
566
GetTopVisibleIndex() const567 FX_INT32 CPWL_ListBox::GetTopVisibleIndex() const
568 {
569 if (m_pList)
570 {
571 m_pList->ScrollToListItem(m_pList->GetFirstSelected());
572 return m_pList->GetTopItem();
573 }
574
575 return -1;
576 }
577
GetCount() const578 FX_INT32 CPWL_ListBox::GetCount() const
579 {
580 if (m_pList)
581 return m_pList->GetCount();
582
583 return 0;
584 }
585
FindNext(FX_INT32 nIndex,FX_WCHAR nChar) const586 FX_INT32 CPWL_ListBox::FindNext(FX_INT32 nIndex,FX_WCHAR nChar) const
587 {
588 if (m_pList)
589 return m_pList->FindNext(nIndex,nChar);
590
591 return nIndex;
592 }
593
GetContentRect() const594 CPDF_Rect CPWL_ListBox::GetContentRect() const
595 {
596 if (m_pList)
597 return m_pList->GetContentRect();
598
599 return CPDF_Rect();
600 }
601
GetFirstHeight() const602 FX_FLOAT CPWL_ListBox::GetFirstHeight() const
603 {
604 if (m_pList)
605 return m_pList->GetFirstHeight();
606
607 return 0.0f;
608 }
609
GetListRect() const610 CPDF_Rect CPWL_ListBox::GetListRect() const
611 {
612 return CPWL_Utils::DeflateRect(GetWindowRect(),(FX_FLOAT)(GetBorderWidth()+GetInnerBorderWidth()));
613 }
614
OnMouseWheel(short zDelta,const CPDF_Point & point,FX_DWORD nFlag)615 FX_BOOL CPWL_ListBox::OnMouseWheel(short zDelta, const CPDF_Point & point, FX_DWORD nFlag)
616 {
617 if (!m_pList) return FALSE;
618
619 if (zDelta < 0)
620 {
621 m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
622 }
623 else
624 {
625 m_pList->OnVK_UP(IsSHIFTpressed(nFlag),IsCTRLpressed(nFlag));
626 }
627
628 FX_BOOL bExit = FALSE;
629 OnNotifySelChanged(FALSE,bExit, nFlag);
630 return TRUE;
631 }
632
633