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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 "xfa/fwl/core/ifwl_listbox.h" | |
8 | |
9 #include <algorithm> | |
10 #include <memory> | |
11 #include <utility> | |
12 | |
13 #include "third_party/base/ptr_util.h" | |
14 #include "third_party/base/stl_util.h" | |
15 #include "xfa/fde/tto/fde_textout.h" | |
16 #include "xfa/fwl/core/cfwl_app.h" | |
17 #include "xfa/fwl/core/cfwl_msgkey.h" | |
18 #include "xfa/fwl/core/cfwl_msgmouse.h" | |
19 #include "xfa/fwl/core/cfwl_msgmousewheel.h" | |
20 #include "xfa/fwl/core/cfwl_themebackground.h" | |
21 #include "xfa/fwl/core/cfwl_themepart.h" | |
22 #include "xfa/fwl/core/cfwl_themetext.h" | |
23 #include "xfa/fwl/core/ifwl_themeprovider.h" | |
24 | |
25 namespace { | |
26 | |
27 const int kItemTextMargin = 2; | |
28 | |
29 } // namespace | |
30 | |
31 IFWL_ListBox::IFWL_ListBox(const CFWL_App* app, | |
32 std::unique_ptr<CFWL_WidgetProperties> properties, | |
33 IFWL_Widget* pOuter) | |
34 : IFWL_Widget(app, std::move(properties), pOuter), | |
35 m_dwTTOStyles(0), | |
36 m_iTTOAligns(0), | |
37 m_hAnchor(nullptr), | |
38 m_fScorllBarWidth(0), | |
39 m_bLButtonDown(false), | |
40 m_pScrollBarTP(nullptr) { | |
41 m_rtClient.Reset(); | |
42 m_rtConent.Reset(); | |
43 m_rtStatic.Reset(); | |
44 } | |
45 | |
46 IFWL_ListBox::~IFWL_ListBox() {} | |
47 | |
48 FWL_Type IFWL_ListBox::GetClassID() const { | |
49 return FWL_Type::ListBox; | |
50 } | |
51 | |
52 void IFWL_ListBox::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) { | |
53 if (!bAutoSize) { | |
54 rect = m_pProperties->m_rtWidget; | |
55 return; | |
56 } | |
57 | |
58 rect.Set(0, 0, 0, 0); | |
59 if (!m_pProperties->m_pThemeProvider) | |
60 m_pProperties->m_pThemeProvider = GetAvailableTheme(); | |
61 | |
62 CFX_SizeF fs = CalcSize(true); | |
63 rect.Set(0, 0, fs.x, fs.y); | |
64 IFWL_Widget::GetWidgetRect(rect, true); | |
65 } | |
66 | |
67 void IFWL_ListBox::Update() { | |
68 if (IsLocked()) | |
69 return; | |
70 if (!m_pProperties->m_pThemeProvider) | |
71 m_pProperties->m_pThemeProvider = GetAvailableTheme(); | |
72 | |
73 switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_AlignMask) { | |
74 case FWL_STYLEEXT_LTB_LeftAlign: { | |
75 m_iTTOAligns = FDE_TTOALIGNMENT_CenterLeft; | |
76 break; | |
77 } | |
78 case FWL_STYLEEXT_LTB_RightAlign: { | |
79 m_iTTOAligns = FDE_TTOALIGNMENT_CenterRight; | |
80 break; | |
81 } | |
82 case FWL_STYLEEXT_LTB_CenterAlign: | |
83 default: { | |
84 m_iTTOAligns = FDE_TTOALIGNMENT_Center; | |
85 break; | |
86 } | |
87 } | |
88 if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading) | |
89 m_dwTTOStyles |= FDE_TTOSTYLE_RTL; | |
90 | |
91 m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine; | |
92 m_fScorllBarWidth = GetScrollWidth(); | |
93 CalcSize(); | |
94 } | |
95 | |
96 FWL_WidgetHit IFWL_ListBox::HitTest(FX_FLOAT fx, FX_FLOAT fy) { | |
97 if (IsShowScrollBar(false)) { | |
98 CFX_RectF rect; | |
99 m_pHorzScrollBar->GetWidgetRect(rect); | |
100 if (rect.Contains(fx, fy)) | |
101 return FWL_WidgetHit::HScrollBar; | |
102 } | |
103 if (IsShowScrollBar(true)) { | |
104 CFX_RectF rect; | |
105 m_pVertScrollBar->GetWidgetRect(rect); | |
106 if (rect.Contains(fx, fy)) | |
107 return FWL_WidgetHit::VScrollBar; | |
108 } | |
109 if (m_rtClient.Contains(fx, fy)) | |
110 return FWL_WidgetHit::Client; | |
111 return FWL_WidgetHit::Unknown; | |
112 } | |
113 | |
114 void IFWL_ListBox::DrawWidget(CFX_Graphics* pGraphics, | |
115 const CFX_Matrix* pMatrix) { | |
116 if (!pGraphics) | |
117 return; | |
118 if (!m_pProperties->m_pThemeProvider) | |
119 return; | |
120 | |
121 IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; | |
122 pGraphics->SaveGraphState(); | |
123 if (HasBorder()) | |
124 DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix); | |
125 if (HasEdge()) | |
126 DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix); | |
127 | |
128 CFX_RectF rtClip(m_rtConent); | |
129 if (IsShowScrollBar(false)) | |
130 rtClip.height -= m_fScorllBarWidth; | |
131 if (IsShowScrollBar(true)) | |
132 rtClip.width -= m_fScorllBarWidth; | |
133 if (pMatrix) | |
134 pMatrix->TransformRect(rtClip); | |
135 | |
136 pGraphics->SetClipRect(rtClip); | |
137 if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_NoBackground) == 0) | |
138 DrawBkground(pGraphics, pTheme, pMatrix); | |
139 | |
140 DrawItems(pGraphics, pTheme, pMatrix); | |
141 pGraphics->RestoreGraphState(); | |
142 } | |
143 | |
144 void IFWL_ListBox::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) { | |
145 if (pThemeProvider) | |
146 m_pProperties->m_pThemeProvider = pThemeProvider; | |
147 } | |
148 | |
149 int32_t IFWL_ListBox::CountSelItems() { | |
150 int32_t iRet = 0; | |
151 int32_t iCount = CountItems(this); | |
152 for (int32_t i = 0; i < iCount; i++) { | |
153 CFWL_ListItem* pItem = GetItem(this, i); | |
154 if (!pItem) | |
155 continue; | |
156 | |
157 uint32_t dwStyle = GetItemStyles(this, pItem); | |
158 if (dwStyle & FWL_ITEMSTATE_LTB_Selected) | |
159 iRet++; | |
160 } | |
161 return iRet; | |
162 } | |
163 | |
164 CFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) { | |
165 int32_t idx = GetSelIndex(nIndexSel); | |
166 if (idx < 0) | |
167 return nullptr; | |
168 return GetItem(this, idx); | |
169 } | |
170 | |
171 int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) { | |
172 int32_t index = 0; | |
173 int32_t iCount = CountItems(this); | |
174 for (int32_t i = 0; i < iCount; i++) { | |
175 CFWL_ListItem* pItem = GetItem(this, i); | |
176 if (!pItem) | |
177 return -1; | |
178 | |
179 uint32_t dwStyle = GetItemStyles(this, pItem); | |
180 if (dwStyle & FWL_ITEMSTATE_LTB_Selected) { | |
181 if (index == nIndex) | |
182 return i; | |
183 index++; | |
184 } | |
185 } | |
186 return -1; | |
187 } | |
188 | |
189 void IFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) { | |
190 if (!pItem) { | |
191 if (bSelect) { | |
192 SelectAll(); | |
193 } else { | |
194 ClearSelection(); | |
195 SetFocusItem(nullptr); | |
196 } | |
197 return; | |
198 } | |
199 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) | |
200 SetSelectionDirect(pItem, bSelect); | |
201 else | |
202 SetSelection(pItem, pItem, bSelect); | |
203 } | |
204 | |
205 void IFWL_ListBox::GetDataProviderItemText(CFWL_ListItem* pItem, | |
206 CFX_WideString& wsText) { | |
207 if (!pItem) | |
208 return; | |
209 GetItemText(this, pItem, wsText); | |
210 } | |
211 | |
212 CFWL_ListItem* IFWL_ListBox::GetListItem(CFWL_ListItem* pItem, | |
213 uint32_t dwKeyCode) { | |
214 CFWL_ListItem* hRet = nullptr; | |
215 switch (dwKeyCode) { | |
216 case FWL_VKEY_Up: | |
217 case FWL_VKEY_Down: | |
218 case FWL_VKEY_Home: | |
219 case FWL_VKEY_End: { | |
220 const bool bUp = dwKeyCode == FWL_VKEY_Up; | |
221 const bool bDown = dwKeyCode == FWL_VKEY_Down; | |
222 const bool bHome = dwKeyCode == FWL_VKEY_Home; | |
223 int32_t iDstItem = -1; | |
224 if (bUp || bDown) { | |
225 int32_t index = GetItemIndex(this, pItem); | |
226 iDstItem = dwKeyCode == FWL_VKEY_Up ? index - 1 : index + 1; | |
227 } else if (bHome) { | |
228 iDstItem = 0; | |
229 } else { | |
230 int32_t iCount = CountItems(this); | |
231 iDstItem = iCount - 1; | |
232 } | |
233 hRet = GetItem(this, iDstItem); | |
234 break; | |
235 } | |
236 default: | |
237 break; | |
238 } | |
239 return hRet; | |
240 } | |
241 | |
242 void IFWL_ListBox::SetSelection(CFWL_ListItem* hStart, | |
243 CFWL_ListItem* hEnd, | |
244 bool bSelected) { | |
245 int32_t iStart = GetItemIndex(this, hStart); | |
246 int32_t iEnd = GetItemIndex(this, hEnd); | |
247 if (iStart > iEnd) { | |
248 int32_t iTemp = iStart; | |
249 iStart = iEnd; | |
250 iEnd = iTemp; | |
251 } | |
252 if (bSelected) { | |
253 int32_t iCount = CountItems(this); | |
254 for (int32_t i = 0; i < iCount; i++) { | |
255 CFWL_ListItem* pItem = GetItem(this, i); | |
256 SetSelectionDirect(pItem, false); | |
257 } | |
258 } | |
259 for (; iStart <= iEnd; iStart++) { | |
260 CFWL_ListItem* pItem = GetItem(this, iStart); | |
261 SetSelectionDirect(pItem, bSelected); | |
262 } | |
263 } | |
264 | |
265 void IFWL_ListBox::SetSelectionDirect(CFWL_ListItem* pItem, bool bSelect) { | |
266 uint32_t dwOldStyle = GetItemStyles(this, pItem); | |
267 bSelect ? dwOldStyle |= FWL_ITEMSTATE_LTB_Selected | |
268 : dwOldStyle &= ~FWL_ITEMSTATE_LTB_Selected; | |
269 SetItemStyles(this, pItem, dwOldStyle); | |
270 } | |
271 | |
272 bool IFWL_ListBox::IsItemSelected(CFWL_ListItem* pItem) { | |
273 uint32_t dwState = GetItemStyles(this, pItem); | |
274 return (dwState & FWL_ITEMSTATE_LTB_Selected) != 0; | |
275 } | |
276 | |
277 void IFWL_ListBox::ClearSelection() { | |
278 bool bMulti = m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection; | |
279 int32_t iCount = CountItems(this); | |
280 for (int32_t i = 0; i < iCount; i++) { | |
281 CFWL_ListItem* pItem = GetItem(this, i); | |
282 uint32_t dwState = GetItemStyles(this, pItem); | |
283 if (!(dwState & FWL_ITEMSTATE_LTB_Selected)) | |
284 continue; | |
285 SetSelectionDirect(pItem, false); | |
286 if (!bMulti) | |
287 return; | |
288 } | |
289 } | |
290 | |
291 void IFWL_ListBox::SelectAll() { | |
292 if (!m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) | |
293 return; | |
294 | |
295 int32_t iCount = CountItems(this); | |
296 if (iCount <= 0) | |
297 return; | |
298 | |
299 CFWL_ListItem* pItemStart = GetItem(this, 0); | |
300 CFWL_ListItem* pItemEnd = GetItem(this, iCount - 1); | |
301 SetSelection(pItemStart, pItemEnd, false); | |
302 } | |
303 | |
304 CFWL_ListItem* IFWL_ListBox::GetFocusedItem() { | |
305 int32_t iCount = CountItems(this); | |
306 for (int32_t i = 0; i < iCount; i++) { | |
307 CFWL_ListItem* pItem = GetItem(this, i); | |
308 if (!pItem) | |
309 return nullptr; | |
310 if (GetItemStyles(this, pItem) & FWL_ITEMSTATE_LTB_Focused) | |
311 return pItem; | |
312 } | |
313 return nullptr; | |
314 } | |
315 | |
316 void IFWL_ListBox::SetFocusItem(CFWL_ListItem* pItem) { | |
317 CFWL_ListItem* hFocus = GetFocusedItem(); | |
318 if (pItem == hFocus) | |
319 return; | |
320 | |
321 if (hFocus) { | |
322 uint32_t dwStyle = GetItemStyles(this, hFocus); | |
323 dwStyle &= ~FWL_ITEMSTATE_LTB_Focused; | |
324 SetItemStyles(this, hFocus, dwStyle); | |
325 } | |
326 if (pItem) { | |
327 uint32_t dwStyle = GetItemStyles(this, pItem); | |
328 dwStyle |= FWL_ITEMSTATE_LTB_Focused; | |
329 SetItemStyles(this, pItem, dwStyle); | |
330 } | |
331 } | |
332 | |
333 CFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) { | |
334 fx -= m_rtConent.left, fy -= m_rtConent.top; | |
335 FX_FLOAT fPosX = 0.0f; | |
336 if (m_pHorzScrollBar) | |
337 fPosX = m_pHorzScrollBar->GetPos(); | |
338 | |
339 FX_FLOAT fPosY = 0.0; | |
340 if (m_pVertScrollBar) | |
341 fPosY = m_pVertScrollBar->GetPos(); | |
342 | |
343 int32_t nCount = CountItems(this); | |
344 for (int32_t i = 0; i < nCount; i++) { | |
345 CFWL_ListItem* pItem = GetItem(this, i); | |
346 if (!pItem) | |
347 continue; | |
348 | |
349 CFX_RectF rtItem; | |
350 GetItemRect(this, pItem, rtItem); | |
351 rtItem.Offset(-fPosX, -fPosY); | |
352 if (rtItem.Contains(fx, fy)) | |
353 return pItem; | |
354 } | |
355 return nullptr; | |
356 } | |
357 | |
358 bool IFWL_ListBox::GetItemCheckRectInternal(CFWL_ListItem* pItem, | |
359 CFX_RectF& rtCheck) { | |
360 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
361 return false; | |
362 GetItemCheckRect(this, pItem, rtCheck); | |
363 return true; | |
364 } | |
365 | |
366 bool IFWL_ListBox::GetItemChecked(CFWL_ListItem* pItem) { | |
367 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
368 return false; | |
369 return !!(GetItemCheckState(this, pItem) & FWL_ITEMSTATE_LTB_Checked); | |
370 } | |
371 | |
372 bool IFWL_ListBox::SetItemChecked(CFWL_ListItem* pItem, bool bChecked) { | |
373 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
374 return false; | |
375 | |
376 SetItemCheckState(this, pItem, bChecked ? FWL_ITEMSTATE_LTB_Checked : 0); | |
377 return true; | |
378 } | |
379 | |
380 bool IFWL_ListBox::ScrollToVisible(CFWL_ListItem* pItem) { | |
381 if (!m_pVertScrollBar) | |
382 return false; | |
383 | |
384 CFX_RectF rtItem; | |
385 GetItemRect(this, pItem, rtItem); | |
386 | |
387 bool bScroll = false; | |
388 FX_FLOAT fPosY = m_pVertScrollBar->GetPos(); | |
389 rtItem.Offset(0, -fPosY + m_rtConent.top); | |
390 if (rtItem.top < m_rtConent.top) { | |
391 fPosY += rtItem.top - m_rtConent.top; | |
392 bScroll = true; | |
393 } else if (rtItem.bottom() > m_rtConent.bottom()) { | |
394 fPosY += rtItem.bottom() - m_rtConent.bottom(); | |
395 bScroll = true; | |
396 } | |
397 if (!bScroll) | |
398 return false; | |
399 | |
400 m_pVertScrollBar->SetPos(fPosY); | |
401 m_pVertScrollBar->SetTrackPos(fPosY); | |
402 Repaint(&m_rtClient); | |
403 return true; | |
404 } | |
405 | |
406 void IFWL_ListBox::DrawBkground(CFX_Graphics* pGraphics, | |
407 IFWL_ThemeProvider* pTheme, | |
408 const CFX_Matrix* pMatrix) { | |
409 if (!pGraphics) | |
410 return; | |
411 if (!pTheme) | |
412 return; | |
413 | |
414 CFWL_ThemeBackground param; | |
415 param.m_pWidget = this; | |
416 param.m_iPart = CFWL_Part::Background; | |
417 param.m_dwStates = 0; | |
418 param.m_pGraphics = pGraphics; | |
419 param.m_matrix.Concat(*pMatrix); | |
420 param.m_rtPart = m_rtClient; | |
421 if (IsShowScrollBar(false) && IsShowScrollBar(true)) | |
422 param.m_pData = &m_rtStatic; | |
423 if (!IsEnabled()) | |
424 param.m_dwStates = CFWL_PartState_Disabled; | |
425 | |
426 pTheme->DrawBackground(¶m); | |
427 } | |
428 | |
429 void IFWL_ListBox::DrawItems(CFX_Graphics* pGraphics, | |
430 IFWL_ThemeProvider* pTheme, | |
431 const CFX_Matrix* pMatrix) { | |
432 FX_FLOAT fPosX = 0.0f; | |
433 if (m_pHorzScrollBar) | |
434 fPosX = m_pHorzScrollBar->GetPos(); | |
435 | |
436 FX_FLOAT fPosY = 0.0f; | |
437 if (m_pVertScrollBar) | |
438 fPosY = m_pVertScrollBar->GetPos(); | |
439 | |
440 CFX_RectF rtView(m_rtConent); | |
441 if (m_pHorzScrollBar) | |
442 rtView.height -= m_fScorllBarWidth; | |
443 if (m_pVertScrollBar) | |
444 rtView.width -= m_fScorllBarWidth; | |
445 | |
446 bool bMultiCol = | |
447 !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn); | |
448 int32_t iCount = CountItems(this); | |
449 for (int32_t i = 0; i < iCount; i++) { | |
450 CFWL_ListItem* pItem = GetItem(this, i); | |
451 if (!pItem) | |
452 continue; | |
453 | |
454 CFX_RectF rtItem; | |
455 GetItemRect(this, pItem, rtItem); | |
456 rtItem.Offset(m_rtConent.left - fPosX, m_rtConent.top - fPosY); | |
457 if (rtItem.bottom() < m_rtConent.top) | |
458 continue; | |
459 if (rtItem.top >= m_rtConent.bottom()) | |
460 break; | |
461 if (bMultiCol && rtItem.left > m_rtConent.right()) | |
462 break; | |
463 | |
464 if (!(GetStylesEx() & FWL_STYLEEXT_LTB_OwnerDraw)) | |
465 DrawItem(pGraphics, pTheme, pItem, i, rtItem, pMatrix); | |
466 } | |
467 } | |
468 | |
469 void IFWL_ListBox::DrawItem(CFX_Graphics* pGraphics, | |
470 IFWL_ThemeProvider* pTheme, | |
471 CFWL_ListItem* pItem, | |
472 int32_t Index, | |
473 const CFX_RectF& rtItem, | |
474 const CFX_Matrix* pMatrix) { | |
475 uint32_t dwItemStyles = GetItemStyles(this, pItem); | |
476 uint32_t dwPartStates = CFWL_PartState_Normal; | |
477 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) | |
478 dwPartStates = CFWL_PartState_Disabled; | |
479 else if (dwItemStyles & FWL_ITEMSTATE_LTB_Selected) | |
480 dwPartStates = CFWL_PartState_Selected; | |
481 | |
482 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused && | |
483 dwItemStyles & FWL_ITEMSTATE_LTB_Focused) { | |
484 dwPartStates |= CFWL_PartState_Focused; | |
485 } | |
486 | |
487 CFWL_ThemeBackground bg_param; | |
488 bg_param.m_pWidget = this; | |
489 bg_param.m_iPart = CFWL_Part::ListItem; | |
490 bg_param.m_dwStates = dwPartStates; | |
491 bg_param.m_pGraphics = pGraphics; | |
492 bg_param.m_matrix.Concat(*pMatrix); | |
493 bg_param.m_rtPart = rtItem; | |
494 bg_param.m_bMaximize = true; | |
495 CFX_RectF rtFocus(rtItem); | |
496 bg_param.m_pData = &rtFocus; | |
497 if (m_pVertScrollBar && !m_pHorzScrollBar && | |
498 (dwPartStates & CFWL_PartState_Focused)) { | |
499 bg_param.m_rtPart.left += 1; | |
500 bg_param.m_rtPart.width -= (m_fScorllBarWidth + 1); | |
501 rtFocus.Deflate(0.5, 0.5, 1 + m_fScorllBarWidth, 1); | |
502 } | |
503 pTheme->DrawBackground(&bg_param); | |
504 | |
505 bool bHasIcon = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Icon); | |
506 if (bHasIcon) { | |
507 CFX_RectF rtDIB; | |
508 CFX_DIBitmap* pDib = GetItemIcon(this, pItem); | |
509 rtDIB.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height); | |
510 if (pDib) { | |
511 CFWL_ThemeBackground param; | |
512 param.m_pWidget = this; | |
513 param.m_iPart = CFWL_Part::Icon; | |
514 param.m_pGraphics = pGraphics; | |
515 param.m_matrix.Concat(*pMatrix); | |
516 param.m_rtPart = rtDIB; | |
517 param.m_bMaximize = true; | |
518 param.m_pImage = pDib; | |
519 pTheme->DrawBackground(¶m); | |
520 } | |
521 } | |
522 | |
523 bool bHasCheck = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Check); | |
524 if (bHasCheck) { | |
525 CFX_RectF rtCheck; | |
526 rtCheck.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height); | |
527 rtCheck.Deflate(2, 2, 2, 2); | |
528 SetItemCheckRect(this, pItem, rtCheck); | |
529 CFWL_ThemeBackground param; | |
530 param.m_pWidget = this; | |
531 param.m_iPart = CFWL_Part::Check; | |
532 param.m_pGraphics = pGraphics; | |
533 if (GetItemChecked(pItem)) | |
534 param.m_dwStates = CFWL_PartState_Checked; | |
535 else | |
536 param.m_dwStates = CFWL_PartState_Normal; | |
537 param.m_matrix.Concat(*pMatrix); | |
538 param.m_rtPart = rtCheck; | |
539 param.m_bMaximize = true; | |
540 pTheme->DrawBackground(¶m); | |
541 } | |
542 | |
543 CFX_WideString wsText; | |
544 GetItemText(this, pItem, wsText); | |
545 if (wsText.GetLength() <= 0) | |
546 return; | |
547 | |
548 CFX_RectF rtText(rtItem); | |
549 rtText.Deflate(kItemTextMargin, kItemTextMargin); | |
550 if (bHasIcon || bHasCheck) | |
551 rtText.Deflate(rtItem.height, 0, 0, 0); | |
552 | |
553 CFWL_ThemeText textParam; | |
554 textParam.m_pWidget = this; | |
555 textParam.m_iPart = CFWL_Part::ListItem; | |
556 textParam.m_dwStates = dwPartStates; | |
557 textParam.m_pGraphics = pGraphics; | |
558 textParam.m_matrix.Concat(*pMatrix); | |
559 textParam.m_rtPart = rtText; | |
560 textParam.m_wsText = wsText; | |
561 textParam.m_dwTTOStyles = m_dwTTOStyles; | |
562 textParam.m_iTTOAlign = m_iTTOAligns; | |
563 textParam.m_bMaximize = true; | |
564 pTheme->DrawText(&textParam); | |
565 } | |
566 | |
567 CFX_SizeF IFWL_ListBox::CalcSize(bool bAutoSize) { | |
568 CFX_SizeF fs; | |
569 if (!m_pProperties->m_pThemeProvider) | |
570 return fs; | |
571 | |
572 GetClientRect(m_rtClient); | |
573 m_rtConent = m_rtClient; | |
574 CFX_RectF rtUIMargin; | |
575 rtUIMargin.Set(0, 0, 0, 0); | |
576 if (!m_pOuter) { | |
577 CFX_RectF* pUIMargin = static_cast<CFX_RectF*>( | |
578 GetThemeCapacity(CFWL_WidgetCapacity::UIMargin)); | |
579 if (pUIMargin) { | |
580 m_rtConent.Deflate(pUIMargin->left, pUIMargin->top, pUIMargin->width, | |
581 pUIMargin->height); | |
582 } | |
583 } | |
584 | |
585 FX_FLOAT fWidth = GetMaxTextWidth(); | |
586 fWidth += 2 * kItemTextMargin; | |
587 if (!bAutoSize) { | |
588 FX_FLOAT fActualWidth = | |
589 m_rtClient.width - rtUIMargin.left - rtUIMargin.width; | |
590 fWidth = std::max(fWidth, fActualWidth); | |
591 } | |
592 | |
593 m_fItemHeight = CalcItemHeight(); | |
594 if ((GetStylesEx() & FWL_STYLEEXT_LTB_Icon)) | |
595 fWidth += m_fItemHeight; | |
596 | |
597 int32_t iCount = CountItems(this); | |
598 for (int32_t i = 0; i < iCount; i++) { | |
599 CFWL_ListItem* htem = GetItem(this, i); | |
600 GetItemSize(fs, htem, fWidth, m_fItemHeight, bAutoSize); | |
601 } | |
602 if (bAutoSize) | |
603 return fs; | |
604 | |
605 FX_FLOAT iWidth = m_rtClient.width - rtUIMargin.left - rtUIMargin.width; | |
606 FX_FLOAT iHeight = m_rtClient.height; | |
607 bool bShowVertScr = | |
608 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) && | |
609 (m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll); | |
610 bool bShowHorzScr = | |
611 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) && | |
612 (m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll); | |
613 if (!bShowVertScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll && | |
614 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) == 0) { | |
615 bShowVertScr = (fs.y > iHeight); | |
616 } | |
617 if (!bShowHorzScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll) | |
618 bShowHorzScr = (fs.x > iWidth); | |
619 | |
620 CFX_SizeF szRange; | |
621 if (bShowVertScr) { | |
622 if (!m_pVertScrollBar) | |
623 InitScrollBar(); | |
624 | |
625 CFX_RectF rtScrollBar; | |
626 rtScrollBar.Set(m_rtClient.right() - m_fScorllBarWidth, m_rtClient.top, | |
627 m_fScorllBarWidth, m_rtClient.height - 1); | |
628 if (bShowHorzScr) | |
629 rtScrollBar.height -= m_fScorllBarWidth; | |
630 | |
631 m_pVertScrollBar->SetWidgetRect(rtScrollBar); | |
632 szRange.x = 0, szRange.y = fs.y - m_rtConent.height; | |
633 szRange.y = std::max(szRange.y, m_fItemHeight); | |
634 | |
635 m_pVertScrollBar->SetRange(szRange.x, szRange.y); | |
636 m_pVertScrollBar->SetPageSize(rtScrollBar.height * 9 / 10); | |
637 m_pVertScrollBar->SetStepSize(m_fItemHeight); | |
638 | |
639 FX_FLOAT fPos = | |
640 std::min(std::max(m_pVertScrollBar->GetPos(), 0.f), szRange.y); | |
641 m_pVertScrollBar->SetPos(fPos); | |
642 m_pVertScrollBar->SetTrackPos(fPos); | |
643 if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) == | |
644 0 || | |
645 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) { | |
646 m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, false); | |
647 } | |
648 m_pVertScrollBar->Update(); | |
649 } else if (m_pVertScrollBar) { | |
650 m_pVertScrollBar->SetPos(0); | |
651 m_pVertScrollBar->SetTrackPos(0); | |
652 m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, true); | |
653 } | |
654 if (bShowHorzScr) { | |
655 if (!m_pHorzScrollBar) | |
656 InitScrollBar(false); | |
657 | |
658 CFX_RectF rtScrollBar; | |
659 rtScrollBar.Set(m_rtClient.left, m_rtClient.bottom() - m_fScorllBarWidth, | |
660 m_rtClient.width, m_fScorllBarWidth); | |
661 if (bShowVertScr) | |
662 rtScrollBar.width -= m_fScorllBarWidth; | |
663 | |
664 m_pHorzScrollBar->SetWidgetRect(rtScrollBar); | |
665 szRange.x = 0, szRange.y = fs.x - rtScrollBar.width; | |
666 m_pHorzScrollBar->SetRange(szRange.x, szRange.y); | |
667 m_pHorzScrollBar->SetPageSize(fWidth * 9 / 10); | |
668 m_pHorzScrollBar->SetStepSize(fWidth / 10); | |
669 | |
670 FX_FLOAT fPos = | |
671 std::min(std::max(m_pHorzScrollBar->GetPos(), 0.f), szRange.y); | |
672 m_pHorzScrollBar->SetPos(fPos); | |
673 m_pHorzScrollBar->SetTrackPos(fPos); | |
674 if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) == | |
675 0 || | |
676 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) { | |
677 m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, false); | |
678 } | |
679 m_pHorzScrollBar->Update(); | |
680 } else if (m_pHorzScrollBar) { | |
681 m_pHorzScrollBar->SetPos(0); | |
682 m_pHorzScrollBar->SetTrackPos(0); | |
683 m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, true); | |
684 } | |
685 if (bShowVertScr && bShowHorzScr) { | |
686 m_rtStatic.Set(m_rtClient.right() - m_fScorllBarWidth, | |
687 m_rtClient.bottom() - m_fScorllBarWidth, m_fScorllBarWidth, | |
688 m_fScorllBarWidth); | |
689 } | |
690 return fs; | |
691 } | |
692 | |
693 void IFWL_ListBox::GetItemSize(CFX_SizeF& size, | |
694 CFWL_ListItem* pItem, | |
695 FX_FLOAT fWidth, | |
696 FX_FLOAT fItemHeight, | |
697 bool bAutoSize) { | |
698 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) | |
699 return; | |
700 | |
701 if (!bAutoSize) { | |
702 CFX_RectF rtItem; | |
703 rtItem.Set(0, size.y, fWidth, fItemHeight); | |
704 SetItemRect(this, pItem, rtItem); | |
705 } | |
706 size.x = fWidth; | |
707 size.y += fItemHeight; | |
708 } | |
709 | |
710 FX_FLOAT IFWL_ListBox::GetMaxTextWidth() { | |
711 FX_FLOAT fRet = 0.0f; | |
712 int32_t iCount = CountItems(this); | |
713 for (int32_t i = 0; i < iCount; i++) { | |
714 CFWL_ListItem* pItem = GetItem(this, i); | |
715 if (!pItem) | |
716 continue; | |
717 | |
718 CFX_WideString wsText; | |
719 GetItemText(this, pItem, wsText); | |
720 CFX_SizeF sz = CalcTextSize(wsText, m_pProperties->m_pThemeProvider); | |
721 fRet = std::max(fRet, sz.x); | |
722 } | |
723 return fRet; | |
724 } | |
725 | |
726 FX_FLOAT IFWL_ListBox::GetScrollWidth() { | |
727 FX_FLOAT* pfWidth = static_cast<FX_FLOAT*>( | |
728 GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); | |
729 if (!pfWidth) | |
730 return 0; | |
731 return *pfWidth; | |
732 } | |
733 | |
734 FX_FLOAT IFWL_ListBox::CalcItemHeight() { | |
735 FX_FLOAT* pfFont = | |
736 static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::FontSize)); | |
737 if (!pfFont) | |
738 return 20; | |
739 return *pfFont + 2 * kItemTextMargin; | |
740 } | |
741 | |
742 void IFWL_ListBox::InitScrollBar(bool bVert) { | |
743 if ((bVert && m_pVertScrollBar) || (!bVert && m_pHorzScrollBar)) | |
744 return; | |
745 | |
746 auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); | |
747 prop->m_dwStyleExes = bVert ? FWL_STYLEEXT_SCB_Vert : FWL_STYLEEXT_SCB_Horz; | |
748 prop->m_dwStates = FWL_WGTSTATE_Invisible; | |
749 prop->m_pParent = this; | |
750 prop->m_pThemeProvider = m_pScrollBarTP; | |
751 CFWL_ScrollBar* sb = new CFWL_ScrollBar(m_pOwnerApp, std::move(prop), this); | |
752 if (bVert) | |
753 m_pVertScrollBar.reset(sb); | |
754 else | |
755 m_pHorzScrollBar.reset(sb); | |
756 } | |
757 | |
758 bool IFWL_ListBox::IsShowScrollBar(bool bVert) { | |
759 CFWL_ScrollBar* pScrollbar = | |
760 bVert ? m_pVertScrollBar.get() : m_pHorzScrollBar.get(); | |
761 if (!pScrollbar || (pScrollbar->GetStates() & FWL_WGTSTATE_Invisible)) | |
762 return false; | |
763 return !(m_pProperties->m_dwStyleExes & | |
764 FWL_STYLEEXT_LTB_ShowScrollBarFocus) || | |
765 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused); | |
766 } | |
767 | |
768 void IFWL_ListBox::OnProcessMessage(CFWL_Message* pMessage) { | |
769 if (!pMessage) | |
770 return; | |
771 if (!IsEnabled()) | |
772 return; | |
773 | |
774 CFWL_MessageType dwMsgCode = pMessage->GetClassID(); | |
775 switch (dwMsgCode) { | |
776 case CFWL_MessageType::SetFocus: | |
777 OnFocusChanged(pMessage, true); | |
778 break; | |
779 case CFWL_MessageType::KillFocus: | |
780 OnFocusChanged(pMessage, false); | |
781 break; | |
782 case CFWL_MessageType::Mouse: { | |
783 CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage); | |
784 switch (pMsg->m_dwCmd) { | |
785 case FWL_MouseCommand::LeftButtonDown: | |
786 OnLButtonDown(pMsg); | |
787 break; | |
788 case FWL_MouseCommand::LeftButtonUp: | |
789 OnLButtonUp(pMsg); | |
790 break; | |
791 default: | |
792 break; | |
793 } | |
794 break; | |
795 } | |
796 case CFWL_MessageType::MouseWheel: | |
797 OnMouseWheel(static_cast<CFWL_MsgMouseWheel*>(pMessage)); | |
798 break; | |
799 case CFWL_MessageType::Key: { | |
800 CFWL_MsgKey* pMsg = static_cast<CFWL_MsgKey*>(pMessage); | |
801 if (pMsg->m_dwCmd == FWL_KeyCommand::KeyDown) | |
802 OnKeyDown(pMsg); | |
803 break; | |
804 } | |
805 default: | |
806 break; | |
807 } | |
808 IFWL_Widget::OnProcessMessage(pMessage); | |
809 } | |
810 | |
811 void IFWL_ListBox::OnProcessEvent(CFWL_Event* pEvent) { | |
812 if (!pEvent) | |
813 return; | |
814 if (pEvent->GetClassID() != CFWL_EventType::Scroll) | |
815 return; | |
816 | |
817 IFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget; | |
818 if ((pSrcTarget == m_pVertScrollBar.get() && m_pVertScrollBar) || | |
819 (pSrcTarget == m_pHorzScrollBar.get() && m_pHorzScrollBar)) { | |
820 CFWL_EvtScroll* pScrollEvent = static_cast<CFWL_EvtScroll*>(pEvent); | |
821 OnScroll(static_cast<CFWL_ScrollBar*>(pSrcTarget), | |
822 pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos); | |
823 } | |
824 } | |
825 | |
826 void IFWL_ListBox::OnDrawWidget(CFX_Graphics* pGraphics, | |
827 const CFX_Matrix* pMatrix) { | |
828 DrawWidget(pGraphics, pMatrix); | |
829 } | |
830 | |
831 void IFWL_ListBox::OnFocusChanged(CFWL_Message* pMsg, bool bSet) { | |
832 if (GetStylesEx() & FWL_STYLEEXT_LTB_ShowScrollBarFocus) { | |
833 if (m_pVertScrollBar) | |
834 m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet); | |
835 if (m_pHorzScrollBar) | |
836 m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet); | |
837 } | |
838 if (bSet) | |
839 m_pProperties->m_dwStates |= (FWL_WGTSTATE_Focused); | |
840 else | |
841 m_pProperties->m_dwStates &= ~(FWL_WGTSTATE_Focused); | |
842 | |
843 Repaint(&m_rtClient); | |
844 } | |
845 | |
846 void IFWL_ListBox::OnLButtonDown(CFWL_MsgMouse* pMsg) { | |
847 m_bLButtonDown = true; | |
848 if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) | |
849 SetFocus(true); | |
850 | |
851 CFWL_ListItem* pItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
852 if (!pItem) | |
853 return; | |
854 | |
855 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) { | |
856 if (pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl) { | |
857 bool bSelected = IsItemSelected(pItem); | |
858 SetSelectionDirect(pItem, !bSelected); | |
859 m_hAnchor = pItem; | |
860 } else if (pMsg->m_dwFlags & FWL_KEYFLAG_Shift) { | |
861 if (m_hAnchor) | |
862 SetSelection(m_hAnchor, pItem, true); | |
863 else | |
864 SetSelectionDirect(pItem, true); | |
865 } else { | |
866 SetSelection(pItem, pItem, true); | |
867 m_hAnchor = pItem; | |
868 } | |
869 } else { | |
870 SetSelection(pItem, pItem, true); | |
871 } | |
872 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check) { | |
873 CFWL_ListItem* hSelectedItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
874 CFX_RectF rtCheck; | |
875 GetItemCheckRectInternal(hSelectedItem, rtCheck); | |
876 bool bChecked = GetItemChecked(pItem); | |
877 if (rtCheck.Contains(pMsg->m_fx, pMsg->m_fy)) { | |
878 SetItemChecked(pItem, !bChecked); | |
879 Update(); | |
880 } | |
881 } | |
882 SetFocusItem(pItem); | |
883 ScrollToVisible(pItem); | |
884 SetGrab(true); | |
885 Repaint(&m_rtClient); | |
886 } | |
887 | |
888 void IFWL_ListBox::OnLButtonUp(CFWL_MsgMouse* pMsg) { | |
889 if (!m_bLButtonDown) | |
890 return; | |
891 | |
892 m_bLButtonDown = false; | |
893 SetGrab(false); | |
894 } | |
895 | |
896 void IFWL_ListBox::OnMouseWheel(CFWL_MsgMouseWheel* pMsg) { | |
897 if (IsShowScrollBar(true)) | |
898 m_pVertScrollBar->GetDelegate()->OnProcessMessage(pMsg); | |
899 } | |
900 | |
901 void IFWL_ListBox::OnKeyDown(CFWL_MsgKey* pMsg) { | |
902 uint32_t dwKeyCode = pMsg->m_dwKeyCode; | |
903 switch (dwKeyCode) { | |
904 case FWL_VKEY_Tab: | |
905 case FWL_VKEY_Up: | |
906 case FWL_VKEY_Down: | |
907 case FWL_VKEY_Home: | |
908 case FWL_VKEY_End: { | |
909 CFWL_ListItem* pItem = GetFocusedItem(); | |
910 pItem = GetListItem(pItem, dwKeyCode); | |
911 bool bShift = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Shift); | |
912 bool bCtrl = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl); | |
913 OnVK(pItem, bShift, bCtrl); | |
914 break; | |
915 } | |
916 default: | |
917 break; | |
918 } | |
919 } | |
920 | |
921 void IFWL_ListBox::OnVK(CFWL_ListItem* pItem, bool bShift, bool bCtrl) { | |
922 if (!pItem) | |
923 return; | |
924 | |
925 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) { | |
926 if (bCtrl) { | |
927 // Do nothing. | |
928 } else if (bShift) { | |
929 if (m_hAnchor) | |
930 SetSelection(m_hAnchor, pItem, true); | |
931 else | |
932 SetSelectionDirect(pItem, true); | |
933 } else { | |
934 SetSelection(pItem, pItem, true); | |
935 m_hAnchor = pItem; | |
936 } | |
937 } else { | |
938 SetSelection(pItem, pItem, true); | |
939 } | |
940 | |
941 SetFocusItem(pItem); | |
942 ScrollToVisible(pItem); | |
943 | |
944 CFX_RectF rtInvalidate; | |
945 rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width, | |
946 m_pProperties->m_rtWidget.height); | |
947 Repaint(&rtInvalidate); | |
948 } | |
949 | |
950 bool IFWL_ListBox::OnScroll(CFWL_ScrollBar* pScrollBar, | |
951 FWL_SCBCODE dwCode, | |
952 FX_FLOAT fPos) { | |
953 CFX_SizeF fs; | |
954 pScrollBar->GetRange(&fs.x, &fs.y); | |
955 FX_FLOAT iCurPos = pScrollBar->GetPos(); | |
956 FX_FLOAT fStep = pScrollBar->GetStepSize(); | |
957 switch (dwCode) { | |
958 case FWL_SCBCODE::Min: { | |
959 fPos = fs.x; | |
960 break; | |
961 } | |
962 case FWL_SCBCODE::Max: { | |
963 fPos = fs.y; | |
964 break; | |
965 } | |
966 case FWL_SCBCODE::StepBackward: { | |
967 fPos -= fStep; | |
968 if (fPos < fs.x + fStep / 2) | |
969 fPos = fs.x; | |
970 break; | |
971 } | |
972 case FWL_SCBCODE::StepForward: { | |
973 fPos += fStep; | |
974 if (fPos > fs.y - fStep / 2) | |
975 fPos = fs.y; | |
976 break; | |
977 } | |
978 case FWL_SCBCODE::PageBackward: { | |
979 fPos -= pScrollBar->GetPageSize(); | |
980 if (fPos < fs.x) | |
981 fPos = fs.x; | |
982 break; | |
983 } | |
984 case FWL_SCBCODE::PageForward: { | |
985 fPos += pScrollBar->GetPageSize(); | |
986 if (fPos > fs.y) | |
987 fPos = fs.y; | |
988 break; | |
989 } | |
990 case FWL_SCBCODE::Pos: | |
991 case FWL_SCBCODE::TrackPos: | |
992 case FWL_SCBCODE::None: | |
993 break; | |
994 case FWL_SCBCODE::EndScroll: | |
995 return false; | |
996 } | |
997 if (iCurPos != fPos) { | |
998 pScrollBar->SetPos(fPos); | |
999 pScrollBar->SetTrackPos(fPos); | |
1000 Repaint(&m_rtClient); | |
1001 } | |
1002 return true; | |
1003 } | |
1004 | |
1005 void IFWL_ListBox::GetItemText(IFWL_Widget* pWidget, | |
1006 CFWL_ListItem* pItem, | |
1007 CFX_WideString& wsText) { | |
1008 if (pItem) | |
1009 wsText = static_cast<CFWL_ListItem*>(pItem)->m_wsText; | |
1010 } | |
1011 | |
1012 int32_t IFWL_ListBox::CountItems(const IFWL_Widget* pWidget) const { | |
1013 return pdfium::CollectionSize<int32_t>(m_ItemArray); | |
1014 } | |
1015 | |
1016 CFWL_ListItem* IFWL_ListBox::GetItem(const IFWL_Widget* pWidget, | |
1017 int32_t nIndex) const { | |
1018 if (nIndex < 0 || nIndex >= CountItems(pWidget)) | |
1019 return nullptr; | |
1020 return m_ItemArray[nIndex].get(); | |
1021 } | |
1022 | |
1023 int32_t IFWL_ListBox::GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) { | |
1024 auto it = std::find_if( | |
1025 m_ItemArray.begin(), m_ItemArray.end(), | |
1026 [pItem](const std::unique_ptr<CFWL_ListItem>& candidate) { | |
1027 return candidate.get() == static_cast<CFWL_ListItem*>(pItem); | |
1028 }); | |
1029 return it != m_ItemArray.end() ? it - m_ItemArray.begin() : -1; | |
1030 } | |
1031 | |
1032 uint32_t IFWL_ListBox::GetItemStyles(IFWL_Widget* pWidget, | |
1033 CFWL_ListItem* pItem) { | |
1034 return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_dwStates : 0; | |
1035 } | |
1036 | |
1037 void IFWL_ListBox::GetItemRect(IFWL_Widget* pWidget, | |
1038 CFWL_ListItem* pItem, | |
1039 CFX_RectF& rtItem) { | |
1040 if (pItem) | |
1041 rtItem = static_cast<CFWL_ListItem*>(pItem)->m_rtItem; | |
1042 } | |
1043 | |
1044 void* IFWL_ListBox::GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) { | |
1045 return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr; | |
1046 } | |
1047 | |
1048 void IFWL_ListBox::SetItemStyles(IFWL_Widget* pWidget, | |
1049 CFWL_ListItem* pItem, | |
1050 uint32_t dwStyle) { | |
1051 if (pItem) | |
1052 static_cast<CFWL_ListItem*>(pItem)->m_dwStates = dwStyle; | |
1053 } | |
1054 | |
1055 void IFWL_ListBox::SetItemRect(IFWL_Widget* pWidget, | |
1056 CFWL_ListItem* pItem, | |
1057 const CFX_RectF& rtItem) { | |
1058 if (pItem) | |
1059 static_cast<CFWL_ListItem*>(pItem)->m_rtItem = rtItem; | |
1060 } | |
1061 | |
1062 CFX_DIBitmap* IFWL_ListBox::GetItemIcon(IFWL_Widget* pWidget, | |
1063 CFWL_ListItem* pItem) { | |
1064 return static_cast<CFWL_ListItem*>(pItem)->m_pDIB; | |
1065 } | |
1066 | |
1067 void IFWL_ListBox::GetItemCheckRect(IFWL_Widget* pWidget, | |
1068 CFWL_ListItem* pItem, | |
1069 CFX_RectF& rtCheck) { | |
1070 rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox; | |
1071 } | |
1072 | |
1073 void IFWL_ListBox::SetItemCheckRect(IFWL_Widget* pWidget, | |
1074 CFWL_ListItem* pItem, | |
1075 const CFX_RectF& rtCheck) { | |
1076 static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck; | |
1077 } | |
1078 | |
1079 uint32_t IFWL_ListBox::GetItemCheckState(IFWL_Widget* pWidget, | |
1080 CFWL_ListItem* pItem) { | |
1081 return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState; | |
1082 } | |
1083 | |
1084 void IFWL_ListBox::SetItemCheckState(IFWL_Widget* pWidget, | |
1085 CFWL_ListItem* pItem, | |
1086 uint32_t dwCheckState) { | |
1087 static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState; | |
1088 } | |
1089 | |
1090 CFWL_ListItem* IFWL_ListBox::AddString(const CFX_WideStringC& wsAdd, | |
1091 bool bSelect) { | |
1092 auto pItem = pdfium::MakeUnique<CFWL_ListItem>(); | |
1093 pItem->m_dwStates = 0; | |
1094 pItem->m_wsText = wsAdd; | |
1095 pItem->m_dwStates = bSelect ? FWL_ITEMSTATE_LTB_Selected : 0; | |
1096 m_ItemArray.push_back(std::move(pItem)); | |
1097 return m_ItemArray.back().get(); | |
1098 } | |
1099 | |
1100 bool IFWL_ListBox::RemoveAt(int32_t iIndex) { | |
1101 if (iIndex < 0 || static_cast<size_t>(iIndex) >= m_ItemArray.size()) | |
1102 return false; | |
1103 | |
1104 m_ItemArray.erase(m_ItemArray.begin() + iIndex); | |
1105 return true; | |
1106 } | |
1107 | |
1108 bool IFWL_ListBox::DeleteString(CFWL_ListItem* pItem) { | |
1109 int32_t nIndex = GetItemIndex(this, pItem); | |
1110 if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size()) | |
1111 return false; | |
1112 | |
1113 int32_t iSel = nIndex + 1; | |
1114 if (iSel >= CountItems(this)) | |
1115 iSel = nIndex - 1; | |
1116 if (iSel >= 0) { | |
1117 CFWL_ListItem* pSel = static_cast<CFWL_ListItem*>(GetItem(this, iSel)); | |
1118 pSel->m_dwStates |= FWL_ITEMSTATE_LTB_Selected; | |
1119 } | |
1120 m_ItemArray.erase(m_ItemArray.begin() + nIndex); | |
1121 return true; | |
1122 } | |
1123 | |
1124 void IFWL_ListBox::DeleteAll() { | |
1125 m_ItemArray.clear(); | |
1126 } | |
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