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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/cfwl_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 CFWL_ListBox::CFWL_ListBox(const CFWL_App* app, | |
| 32 std::unique_ptr<CFWL_WidgetProperties> properties, | |
| 33 CFWL_Widget* pOuter) | |
| 34 : CFWL_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 CFWL_ListBox::~CFWL_ListBox() {} | |
| 47 | |
| 48 FWL_Type CFWL_ListBox::GetClassID() const { | |
| 49 return FWL_Type::ListBox; | |
| 50 } | |
| 51 | |
| 52 void CFWL_ListBox::Update() { | |
| 53 if (IsLocked()) | |
| 54 return; | |
| 55 if (!m_pProperties->m_pThemeProvider) | |
| 56 m_pProperties->m_pThemeProvider = GetAvailableTheme(); | |
| 57 | |
| 58 switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_AlignMask) { | |
| 59 case FWL_STYLEEXT_LTB_LeftAlign: { | |
| 60 m_iTTOAligns = FDE_TTOALIGNMENT_CenterLeft; | |
| 61 break; | |
| 62 } | |
| 63 case FWL_STYLEEXT_LTB_RightAlign: { | |
| 64 m_iTTOAligns = FDE_TTOALIGNMENT_CenterRight; | |
| 65 break; | |
| 66 } | |
| 67 case FWL_STYLEEXT_LTB_CenterAlign: | |
| 68 default: { | |
| 69 m_iTTOAligns = FDE_TTOALIGNMENT_Center; | |
| 70 break; | |
| 71 } | |
| 72 } | |
| 73 if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading) | |
| 74 m_dwTTOStyles |= FDE_TTOSTYLE_RTL; | |
| 75 | |
| 76 m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine; | |
| 77 m_fScorllBarWidth = GetScrollWidth(); | |
| 78 CalcSize(false); | |
| 79 } | |
| 80 | |
| 81 FWL_WidgetHit CFWL_ListBox::HitTest(FX_FLOAT fx, FX_FLOAT fy) { | |
| 82 if (IsShowScrollBar(false)) { | |
| 83 CFX_RectF rect = m_pHorzScrollBar->GetWidgetRect(); | |
| 84 if (rect.Contains(fx, fy)) | |
| 85 return FWL_WidgetHit::HScrollBar; | |
| 86 } | |
| 87 if (IsShowScrollBar(true)) { | |
| 88 CFX_RectF rect = m_pVertScrollBar->GetWidgetRect(); | |
| 89 if (rect.Contains(fx, fy)) | |
| 90 return FWL_WidgetHit::VScrollBar; | |
| 91 } | |
| 92 if (m_rtClient.Contains(fx, fy)) | |
| 93 return FWL_WidgetHit::Client; | |
| 94 return FWL_WidgetHit::Unknown; | |
| 95 } | |
| 96 | |
| 97 void CFWL_ListBox::DrawWidget(CFX_Graphics* pGraphics, | |
| 98 const CFX_Matrix* pMatrix) { | |
| 99 if (!pGraphics) | |
| 100 return; | |
| 101 if (!m_pProperties->m_pThemeProvider) | |
| 102 return; | |
| 103 | |
| 104 IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; | |
| 105 pGraphics->SaveGraphState(); | |
| 106 if (HasBorder()) | |
| 107 DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix); | |
| 108 if (HasEdge()) | |
| 109 DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix); | |
| 110 | |
| 111 CFX_RectF rtClip(m_rtConent); | |
| 112 if (IsShowScrollBar(false)) | |
| 113 rtClip.height -= m_fScorllBarWidth; | |
| 114 if (IsShowScrollBar(true)) | |
| 115 rtClip.width -= m_fScorllBarWidth; | |
| 116 if (pMatrix) | |
| 117 pMatrix->TransformRect(rtClip); | |
| 118 | |
| 119 pGraphics->SetClipRect(rtClip); | |
| 120 if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_NoBackground) == 0) | |
| 121 DrawBkground(pGraphics, pTheme, pMatrix); | |
| 122 | |
| 123 DrawItems(pGraphics, pTheme, pMatrix); | |
| 124 pGraphics->RestoreGraphState(); | |
| 125 } | |
| 126 | |
| 127 void CFWL_ListBox::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) { | |
| 128 if (pThemeProvider) | |
| 129 m_pProperties->m_pThemeProvider = pThemeProvider; | |
| 130 } | |
| 131 | |
| 132 int32_t CFWL_ListBox::CountSelItems() { | |
| 133 int32_t iRet = 0; | |
| 134 int32_t iCount = CountItems(this); | |
| 135 for (int32_t i = 0; i < iCount; i++) { | |
| 136 CFWL_ListItem* pItem = GetItem(this, i); | |
| 137 if (!pItem) | |
| 138 continue; | |
| 139 | |
| 140 uint32_t dwStyle = GetItemStyles(this, pItem); | |
| 141 if (dwStyle & FWL_ITEMSTATE_LTB_Selected) | |
| 142 iRet++; | |
| 143 } | |
| 144 return iRet; | |
| 145 } | |
| 146 | |
| 147 CFWL_ListItem* CFWL_ListBox::GetSelItem(int32_t nIndexSel) { | |
| 148 int32_t idx = GetSelIndex(nIndexSel); | |
| 149 if (idx < 0) | |
| 150 return nullptr; | |
| 151 return GetItem(this, idx); | |
| 152 } | |
| 153 | |
| 154 int32_t CFWL_ListBox::GetSelIndex(int32_t nIndex) { | |
| 155 int32_t index = 0; | |
| 156 int32_t iCount = CountItems(this); | |
| 157 for (int32_t i = 0; i < iCount; i++) { | |
| 158 CFWL_ListItem* pItem = GetItem(this, i); | |
| 159 if (!pItem) | |
| 160 return -1; | |
| 161 | |
| 162 uint32_t dwStyle = GetItemStyles(this, pItem); | |
| 163 if (dwStyle & FWL_ITEMSTATE_LTB_Selected) { | |
| 164 if (index == nIndex) | |
| 165 return i; | |
| 166 index++; | |
| 167 } | |
| 168 } | |
| 169 return -1; | |
| 170 } | |
| 171 | |
| 172 void CFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) { | |
| 173 if (!pItem) { | |
| 174 if (bSelect) { | |
| 175 SelectAll(); | |
| 176 } else { | |
| 177 ClearSelection(); | |
| 178 SetFocusItem(nullptr); | |
| 179 } | |
| 180 return; | |
| 181 } | |
| 182 if (IsMultiSelection()) | |
| 183 SetSelectionDirect(pItem, bSelect); | |
| 184 else | |
| 185 SetSelection(pItem, pItem, bSelect); | |
| 186 } | |
| 187 | |
| 188 CFX_WideString CFWL_ListBox::GetDataProviderItemText(CFWL_ListItem* pItem) { | |
| 189 if (!pItem) | |
| 190 return L""; | |
| 191 return GetItemText(this, pItem); | |
| 192 } | |
| 193 | |
| 194 CFWL_ListItem* CFWL_ListBox::GetListItem(CFWL_ListItem* pItem, | |
| 195 uint32_t dwKeyCode) { | |
| 196 CFWL_ListItem* hRet = nullptr; | |
| 197 switch (dwKeyCode) { | |
| 198 case FWL_VKEY_Up: | |
| 199 case FWL_VKEY_Down: | |
| 200 case FWL_VKEY_Home: | |
| 201 case FWL_VKEY_End: { | |
| 202 const bool bUp = dwKeyCode == FWL_VKEY_Up; | |
| 203 const bool bDown = dwKeyCode == FWL_VKEY_Down; | |
| 204 const bool bHome = dwKeyCode == FWL_VKEY_Home; | |
| 205 int32_t iDstItem = -1; | |
| 206 if (bUp || bDown) { | |
| 207 int32_t index = GetItemIndex(this, pItem); | |
| 208 iDstItem = dwKeyCode == FWL_VKEY_Up ? index - 1 : index + 1; | |
| 209 } else if (bHome) { | |
| 210 iDstItem = 0; | |
| 211 } else { | |
| 212 int32_t iCount = CountItems(this); | |
| 213 iDstItem = iCount - 1; | |
| 214 } | |
| 215 hRet = GetItem(this, iDstItem); | |
| 216 break; | |
| 217 } | |
| 218 default: | |
| 219 break; | |
| 220 } | |
| 221 return hRet; | |
| 222 } | |
| 223 | |
| 224 void CFWL_ListBox::SetSelection(CFWL_ListItem* hStart, | |
| 225 CFWL_ListItem* hEnd, | |
| 226 bool bSelected) { | |
| 227 int32_t iStart = GetItemIndex(this, hStart); | |
| 228 int32_t iEnd = GetItemIndex(this, hEnd); | |
| 229 if (iStart > iEnd) { | |
| 230 int32_t iTemp = iStart; | |
| 231 iStart = iEnd; | |
| 232 iEnd = iTemp; | |
| 233 } | |
| 234 if (bSelected) { | |
| 235 int32_t iCount = CountItems(this); | |
| 236 for (int32_t i = 0; i < iCount; i++) { | |
| 237 CFWL_ListItem* pItem = GetItem(this, i); | |
| 238 SetSelectionDirect(pItem, false); | |
| 239 } | |
| 240 } | |
| 241 for (; iStart <= iEnd; iStart++) { | |
| 242 CFWL_ListItem* pItem = GetItem(this, iStart); | |
| 243 SetSelectionDirect(pItem, bSelected); | |
| 244 } | |
| 245 } | |
| 246 | |
| 247 void CFWL_ListBox::SetSelectionDirect(CFWL_ListItem* pItem, bool bSelect) { | |
| 248 uint32_t dwOldStyle = GetItemStyles(this, pItem); | |
| 249 bSelect ? dwOldStyle |= FWL_ITEMSTATE_LTB_Selected | |
| 250 : dwOldStyle &= ~FWL_ITEMSTATE_LTB_Selected; | |
| 251 SetItemStyles(this, pItem, dwOldStyle); | |
| 252 } | |
| 253 | |
| 254 bool CFWL_ListBox::IsMultiSelection() const { | |
| 255 return m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection; | |
| 256 } | |
| 257 | |
| 258 bool CFWL_ListBox::IsItemSelected(CFWL_ListItem* pItem) { | |
| 259 uint32_t dwState = GetItemStyles(this, pItem); | |
| 260 return (dwState & FWL_ITEMSTATE_LTB_Selected) != 0; | |
| 261 } | |
| 262 | |
| 263 void CFWL_ListBox::ClearSelection() { | |
| 264 bool bMulti = IsMultiSelection(); | |
| 265 int32_t iCount = CountItems(this); | |
| 266 for (int32_t i = 0; i < iCount; i++) { | |
| 267 CFWL_ListItem* pItem = GetItem(this, i); | |
| 268 uint32_t dwState = GetItemStyles(this, pItem); | |
| 269 if (!(dwState & FWL_ITEMSTATE_LTB_Selected)) | |
| 270 continue; | |
| 271 SetSelectionDirect(pItem, false); | |
| 272 if (!bMulti) | |
| 273 return; | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 void CFWL_ListBox::SelectAll() { | |
| 278 if (!IsMultiSelection()) | |
| 279 return; | |
| 280 | |
| 281 int32_t iCount = CountItems(this); | |
| 282 if (iCount <= 0) | |
| 283 return; | |
| 284 | |
| 285 CFWL_ListItem* pItemStart = GetItem(this, 0); | |
| 286 CFWL_ListItem* pItemEnd = GetItem(this, iCount - 1); | |
| 287 SetSelection(pItemStart, pItemEnd, false); | |
| 288 } | |
| 289 | |
| 290 CFWL_ListItem* CFWL_ListBox::GetFocusedItem() { | |
| 291 int32_t iCount = CountItems(this); | |
| 292 for (int32_t i = 0; i < iCount; i++) { | |
| 293 CFWL_ListItem* pItem = GetItem(this, i); | |
| 294 if (!pItem) | |
| 295 return nullptr; | |
| 296 if (GetItemStyles(this, pItem) & FWL_ITEMSTATE_LTB_Focused) | |
| 297 return pItem; | |
| 298 } | |
| 299 return nullptr; | |
| 300 } | |
| 301 | |
| 302 void CFWL_ListBox::SetFocusItem(CFWL_ListItem* pItem) { | |
| 303 CFWL_ListItem* hFocus = GetFocusedItem(); | |
| 304 if (pItem == hFocus) | |
| 305 return; | |
| 306 | |
| 307 if (hFocus) { | |
| 308 uint32_t dwStyle = GetItemStyles(this, hFocus); | |
| 309 dwStyle &= ~FWL_ITEMSTATE_LTB_Focused; | |
| 310 SetItemStyles(this, hFocus, dwStyle); | |
| 311 } | |
| 312 if (pItem) { | |
| 313 uint32_t dwStyle = GetItemStyles(this, pItem); | |
| 314 dwStyle |= FWL_ITEMSTATE_LTB_Focused; | |
| 315 SetItemStyles(this, pItem, dwStyle); | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 CFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) { | |
| 320 fx -= m_rtConent.left, fy -= m_rtConent.top; | |
| 321 FX_FLOAT fPosX = 0.0f; | |
| 322 if (m_pHorzScrollBar) | |
| 323 fPosX = m_pHorzScrollBar->GetPos(); | |
| 324 | |
| 325 FX_FLOAT fPosY = 0.0; | |
| 326 if (m_pVertScrollBar) | |
| 327 fPosY = m_pVertScrollBar->GetPos(); | |
| 328 | |
| 329 int32_t nCount = CountItems(this); | |
| 330 for (int32_t i = 0; i < nCount; i++) { | |
| 331 CFWL_ListItem* pItem = GetItem(this, i); | |
| 332 if (!pItem) | |
| 333 continue; | |
| 334 | |
| 335 CFX_RectF rtItem; | |
| 336 GetItemRect(this, pItem, rtItem); | |
| 337 rtItem.Offset(-fPosX, -fPosY); | |
| 338 if (rtItem.Contains(fx, fy)) | |
| 339 return pItem; | |
| 340 } | |
| 341 return nullptr; | |
| 342 } | |
| 343 | |
| 344 bool CFWL_ListBox::GetItemCheckRectInternal(CFWL_ListItem* pItem, | |
| 345 CFX_RectF& rtCheck) { | |
| 346 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
| 347 return false; | |
| 348 GetItemCheckRect(this, pItem, rtCheck); | |
| 349 return true; | |
| 350 } | |
| 351 | |
| 352 bool CFWL_ListBox::GetItemChecked(CFWL_ListItem* pItem) { | |
| 353 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
| 354 return false; | |
| 355 return !!(GetItemCheckState(this, pItem) & FWL_ITEMSTATE_LTB_Checked); | |
| 356 } | |
| 357 | |
| 358 bool CFWL_ListBox::SetItemChecked(CFWL_ListItem* pItem, bool bChecked) { | |
| 359 if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) | |
| 360 return false; | |
| 361 | |
| 362 SetItemCheckState(this, pItem, bChecked ? FWL_ITEMSTATE_LTB_Checked : 0); | |
| 363 return true; | |
| 364 } | |
| 365 | |
| 366 bool CFWL_ListBox::ScrollToVisible(CFWL_ListItem* pItem) { | |
| 367 if (!m_pVertScrollBar) | |
| 368 return false; | |
| 369 | |
| 370 CFX_RectF rtItem; | |
| 371 GetItemRect(this, pItem, rtItem); | |
| 372 | |
| 373 bool bScroll = false; | |
| 374 FX_FLOAT fPosY = m_pVertScrollBar->GetPos(); | |
| 375 rtItem.Offset(0, -fPosY + m_rtConent.top); | |
| 376 if (rtItem.top < m_rtConent.top) { | |
| 377 fPosY += rtItem.top - m_rtConent.top; | |
| 378 bScroll = true; | |
| 379 } else if (rtItem.bottom() > m_rtConent.bottom()) { | |
| 380 fPosY += rtItem.bottom() - m_rtConent.bottom(); | |
| 381 bScroll = true; | |
| 382 } | |
| 383 if (!bScroll) | |
| 384 return false; | |
| 385 | |
| 386 m_pVertScrollBar->SetPos(fPosY); | |
| 387 m_pVertScrollBar->SetTrackPos(fPosY); | |
| 388 Repaint(&m_rtClient); | |
| 389 return true; | |
| 390 } | |
| 391 | |
| 392 void CFWL_ListBox::DrawBkground(CFX_Graphics* pGraphics, | |
| 393 IFWL_ThemeProvider* pTheme, | |
| 394 const CFX_Matrix* pMatrix) { | |
| 395 if (!pGraphics) | |
| 396 return; | |
| 397 if (!pTheme) | |
| 398 return; | |
| 399 | |
| 400 CFWL_ThemeBackground param; | |
| 401 param.m_pWidget = this; | |
| 402 param.m_iPart = CFWL_Part::Background; | |
| 403 param.m_dwStates = 0; | |
| 404 param.m_pGraphics = pGraphics; | |
| 405 param.m_matrix.Concat(*pMatrix); | |
| 406 param.m_rtPart = m_rtClient; | |
| 407 if (IsShowScrollBar(false) && IsShowScrollBar(true)) | |
| 408 param.m_pData = &m_rtStatic; | |
| 409 if (!IsEnabled()) | |
| 410 param.m_dwStates = CFWL_PartState_Disabled; | |
| 411 | |
| 412 pTheme->DrawBackground(¶m); | |
| 413 } | |
| 414 | |
| 415 void CFWL_ListBox::DrawItems(CFX_Graphics* pGraphics, | |
| 416 IFWL_ThemeProvider* pTheme, | |
| 417 const CFX_Matrix* pMatrix) { | |
| 418 FX_FLOAT fPosX = 0.0f; | |
| 419 if (m_pHorzScrollBar) | |
| 420 fPosX = m_pHorzScrollBar->GetPos(); | |
| 421 | |
| 422 FX_FLOAT fPosY = 0.0f; | |
| 423 if (m_pVertScrollBar) | |
| 424 fPosY = m_pVertScrollBar->GetPos(); | |
| 425 | |
| 426 CFX_RectF rtView(m_rtConent); | |
| 427 if (m_pHorzScrollBar) | |
| 428 rtView.height -= m_fScorllBarWidth; | |
| 429 if (m_pVertScrollBar) | |
| 430 rtView.width -= m_fScorllBarWidth; | |
| 431 | |
| 432 bool bMultiCol = | |
| 433 !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn); | |
| 434 int32_t iCount = CountItems(this); | |
| 435 for (int32_t i = 0; i < iCount; i++) { | |
| 436 CFWL_ListItem* pItem = GetItem(this, i); | |
| 437 if (!pItem) | |
| 438 continue; | |
| 439 | |
| 440 CFX_RectF rtItem; | |
| 441 GetItemRect(this, pItem, rtItem); | |
| 442 rtItem.Offset(m_rtConent.left - fPosX, m_rtConent.top - fPosY); | |
| 443 if (rtItem.bottom() < m_rtConent.top) | |
| 444 continue; | |
| 445 if (rtItem.top >= m_rtConent.bottom()) | |
| 446 break; | |
| 447 if (bMultiCol && rtItem.left > m_rtConent.right()) | |
| 448 break; | |
| 449 | |
| 450 if (!(GetStylesEx() & FWL_STYLEEXT_LTB_OwnerDraw)) | |
| 451 DrawItem(pGraphics, pTheme, pItem, i, rtItem, pMatrix); | |
| 452 } | |
| 453 } | |
| 454 | |
| 455 void CFWL_ListBox::DrawItem(CFX_Graphics* pGraphics, | |
| 456 IFWL_ThemeProvider* pTheme, | |
| 457 CFWL_ListItem* pItem, | |
| 458 int32_t Index, | |
| 459 const CFX_RectF& rtItem, | |
| 460 const CFX_Matrix* pMatrix) { | |
| 461 uint32_t dwItemStyles = GetItemStyles(this, pItem); | |
| 462 uint32_t dwPartStates = CFWL_PartState_Normal; | |
| 463 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) | |
| 464 dwPartStates = CFWL_PartState_Disabled; | |
| 465 else if (dwItemStyles & FWL_ITEMSTATE_LTB_Selected) | |
| 466 dwPartStates = CFWL_PartState_Selected; | |
| 467 | |
| 468 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused && | |
| 469 dwItemStyles & FWL_ITEMSTATE_LTB_Focused) { | |
| 470 dwPartStates |= CFWL_PartState_Focused; | |
| 471 } | |
| 472 | |
| 473 CFWL_ThemeBackground bg_param; | |
| 474 bg_param.m_pWidget = this; | |
| 475 bg_param.m_iPart = CFWL_Part::ListItem; | |
| 476 bg_param.m_dwStates = dwPartStates; | |
| 477 bg_param.m_pGraphics = pGraphics; | |
| 478 bg_param.m_matrix.Concat(*pMatrix); | |
| 479 bg_param.m_rtPart = rtItem; | |
| 480 bg_param.m_bMaximize = true; | |
| 481 CFX_RectF rtFocus(rtItem); | |
| 482 bg_param.m_pData = &rtFocus; | |
| 483 if (m_pVertScrollBar && !m_pHorzScrollBar && | |
| 484 (dwPartStates & CFWL_PartState_Focused)) { | |
| 485 bg_param.m_rtPart.left += 1; | |
| 486 bg_param.m_rtPart.width -= (m_fScorllBarWidth + 1); | |
| 487 rtFocus.Deflate(0.5, 0.5, 1 + m_fScorllBarWidth, 1); | |
| 488 } | |
| 489 pTheme->DrawBackground(&bg_param); | |
| 490 | |
| 491 bool bHasIcon = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Icon); | |
| 492 if (bHasIcon) { | |
| 493 CFX_RectF rtDIB; | |
| 494 CFX_DIBitmap* pDib = GetItemIcon(this, pItem); | |
| 495 rtDIB.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height); | |
| 496 if (pDib) { | |
| 497 CFWL_ThemeBackground param; | |
| 498 param.m_pWidget = this; | |
| 499 param.m_iPart = CFWL_Part::Icon; | |
| 500 param.m_pGraphics = pGraphics; | |
| 501 param.m_matrix.Concat(*pMatrix); | |
| 502 param.m_rtPart = rtDIB; | |
| 503 param.m_bMaximize = true; | |
| 504 param.m_pImage = pDib; | |
| 505 pTheme->DrawBackground(¶m); | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 bool bHasCheck = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Check); | |
| 510 if (bHasCheck) { | |
| 511 CFX_RectF rtCheck; | |
| 512 rtCheck.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height); | |
| 513 rtCheck.Deflate(2, 2, 2, 2); | |
| 514 SetItemCheckRect(this, pItem, rtCheck); | |
| 515 CFWL_ThemeBackground param; | |
| 516 param.m_pWidget = this; | |
| 517 param.m_iPart = CFWL_Part::Check; | |
| 518 param.m_pGraphics = pGraphics; | |
| 519 if (GetItemChecked(pItem)) | |
| 520 param.m_dwStates = CFWL_PartState_Checked; | |
| 521 else | |
| 522 param.m_dwStates = CFWL_PartState_Normal; | |
| 523 param.m_matrix.Concat(*pMatrix); | |
| 524 param.m_rtPart = rtCheck; | |
| 525 param.m_bMaximize = true; | |
| 526 pTheme->DrawBackground(¶m); | |
| 527 } | |
| 528 | |
| 529 CFX_WideString wsText = GetItemText(this, pItem); | |
| 530 if (wsText.GetLength() <= 0) | |
| 531 return; | |
| 532 | |
| 533 CFX_RectF rtText(rtItem); | |
| 534 rtText.Deflate(kItemTextMargin, kItemTextMargin); | |
| 535 if (bHasIcon || bHasCheck) | |
| 536 rtText.Deflate(rtItem.height, 0, 0, 0); | |
| 537 | |
| 538 CFWL_ThemeText textParam; | |
| 539 textParam.m_pWidget = this; | |
| 540 textParam.m_iPart = CFWL_Part::ListItem; | |
| 541 textParam.m_dwStates = dwPartStates; | |
| 542 textParam.m_pGraphics = pGraphics; | |
| 543 textParam.m_matrix.Concat(*pMatrix); | |
| 544 textParam.m_rtPart = rtText; | |
| 545 textParam.m_wsText = wsText; | |
| 546 textParam.m_dwTTOStyles = m_dwTTOStyles; | |
| 547 textParam.m_iTTOAlign = m_iTTOAligns; | |
| 548 textParam.m_bMaximize = true; | |
| 549 pTheme->DrawText(&textParam); | |
| 550 } | |
| 551 | |
| 552 CFX_SizeF CFWL_ListBox::CalcSize(bool bAutoSize) { | |
| 553 CFX_SizeF fs; | |
| 554 if (!m_pProperties->m_pThemeProvider) | |
| 555 return fs; | |
| 556 | |
| 557 GetClientRect(m_rtClient); | |
| 558 m_rtConent = m_rtClient; | |
| 559 CFX_RectF rtUIMargin; | |
| 560 rtUIMargin.Set(0, 0, 0, 0); | |
| 561 if (!m_pOuter) { | |
| 562 CFX_RectF* pUIMargin = static_cast<CFX_RectF*>( | |
| 563 GetThemeCapacity(CFWL_WidgetCapacity::UIMargin)); | |
| 564 if (pUIMargin) { | |
| 565 m_rtConent.Deflate(pUIMargin->left, pUIMargin->top, pUIMargin->width, | |
| 566 pUIMargin->height); | |
| 567 } | |
| 568 } | |
| 569 | |
| 570 FX_FLOAT fWidth = GetMaxTextWidth(); | |
| 571 fWidth += 2 * kItemTextMargin; | |
| 572 if (!bAutoSize) { | |
| 573 FX_FLOAT fActualWidth = | |
| 574 m_rtClient.width - rtUIMargin.left - rtUIMargin.width; | |
| 575 fWidth = std::max(fWidth, fActualWidth); | |
| 576 } | |
| 577 | |
| 578 m_fItemHeight = CalcItemHeight(); | |
| 579 if ((GetStylesEx() & FWL_STYLEEXT_LTB_Icon)) | |
| 580 fWidth += m_fItemHeight; | |
| 581 | |
| 582 int32_t iCount = CountItems(this); | |
| 583 for (int32_t i = 0; i < iCount; i++) { | |
| 584 CFWL_ListItem* htem = GetItem(this, i); | |
| 585 GetItemSize(fs, htem, fWidth, m_fItemHeight, bAutoSize); | |
| 586 } | |
| 587 if (bAutoSize) | |
| 588 return fs; | |
| 589 | |
| 590 FX_FLOAT iWidth = m_rtClient.width - rtUIMargin.left - rtUIMargin.width; | |
| 591 FX_FLOAT iHeight = m_rtClient.height; | |
| 592 bool bShowVertScr = | |
| 593 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) && | |
| 594 (m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll); | |
| 595 bool bShowHorzScr = | |
| 596 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) && | |
| 597 (m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll); | |
| 598 if (!bShowVertScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll && | |
| 599 (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) == 0) { | |
| 600 bShowVertScr = (fs.y > iHeight); | |
| 601 } | |
| 602 if (!bShowHorzScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll) | |
| 603 bShowHorzScr = (fs.x > iWidth); | |
| 604 | |
| 605 CFX_SizeF szRange; | |
| 606 if (bShowVertScr) { | |
| 607 if (!m_pVertScrollBar) | |
| 608 InitVerticalScrollBar(); | |
| 609 | |
| 610 CFX_RectF rtScrollBar; | |
| 611 rtScrollBar.Set(m_rtClient.right() - m_fScorllBarWidth, m_rtClient.top, | |
| 612 m_fScorllBarWidth, m_rtClient.height - 1); | |
| 613 if (bShowHorzScr) | |
| 614 rtScrollBar.height -= m_fScorllBarWidth; | |
| 615 | |
| 616 m_pVertScrollBar->SetWidgetRect(rtScrollBar); | |
| 617 szRange.x = 0, szRange.y = fs.y - m_rtConent.height; | |
| 618 szRange.y = std::max(szRange.y, m_fItemHeight); | |
| 619 | |
| 620 m_pVertScrollBar->SetRange(szRange.x, szRange.y); | |
| 621 m_pVertScrollBar->SetPageSize(rtScrollBar.height * 9 / 10); | |
| 622 m_pVertScrollBar->SetStepSize(m_fItemHeight); | |
| 623 | |
| 624 FX_FLOAT fPos = | |
| 625 std::min(std::max(m_pVertScrollBar->GetPos(), 0.f), szRange.y); | |
| 626 m_pVertScrollBar->SetPos(fPos); | |
| 627 m_pVertScrollBar->SetTrackPos(fPos); | |
| 628 if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) == | |
| 629 0 || | |
| 630 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) { | |
| 631 m_pVertScrollBar->RemoveStates(FWL_WGTSTATE_Invisible); | |
| 632 } | |
| 633 m_pVertScrollBar->Update(); | |
| 634 } else if (m_pVertScrollBar) { | |
| 635 m_pVertScrollBar->SetPos(0); | |
| 636 m_pVertScrollBar->SetTrackPos(0); | |
| 637 m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible); | |
| 638 } | |
| 639 if (bShowHorzScr) { | |
| 640 if (!m_pHorzScrollBar) | |
| 641 InitHorizontalScrollBar(); | |
| 642 | |
| 643 CFX_RectF rtScrollBar; | |
| 644 rtScrollBar.Set(m_rtClient.left, m_rtClient.bottom() - m_fScorllBarWidth, | |
| 645 m_rtClient.width, m_fScorllBarWidth); | |
| 646 if (bShowVertScr) | |
| 647 rtScrollBar.width -= m_fScorllBarWidth; | |
| 648 | |
| 649 m_pHorzScrollBar->SetWidgetRect(rtScrollBar); | |
| 650 szRange.x = 0, szRange.y = fs.x - rtScrollBar.width; | |
| 651 m_pHorzScrollBar->SetRange(szRange.x, szRange.y); | |
| 652 m_pHorzScrollBar->SetPageSize(fWidth * 9 / 10); | |
| 653 m_pHorzScrollBar->SetStepSize(fWidth / 10); | |
| 654 | |
| 655 FX_FLOAT fPos = | |
| 656 std::min(std::max(m_pHorzScrollBar->GetPos(), 0.f), szRange.y); | |
| 657 m_pHorzScrollBar->SetPos(fPos); | |
| 658 m_pHorzScrollBar->SetTrackPos(fPos); | |
| 659 if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) == | |
| 660 0 || | |
| 661 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) { | |
| 662 m_pHorzScrollBar->RemoveStates(FWL_WGTSTATE_Invisible); | |
| 663 } | |
| 664 m_pHorzScrollBar->Update(); | |
| 665 } else if (m_pHorzScrollBar) { | |
| 666 m_pHorzScrollBar->SetPos(0); | |
| 667 m_pHorzScrollBar->SetTrackPos(0); | |
| 668 m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible); | |
| 669 } | |
| 670 if (bShowVertScr && bShowHorzScr) { | |
| 671 m_rtStatic.Set(m_rtClient.right() - m_fScorllBarWidth, | |
| 672 m_rtClient.bottom() - m_fScorllBarWidth, m_fScorllBarWidth, | |
| 673 m_fScorllBarWidth); | |
| 674 } | |
| 675 return fs; | |
| 676 } | |
| 677 | |
| 678 void CFWL_ListBox::GetItemSize(CFX_SizeF& size, | |
| 679 CFWL_ListItem* pItem, | |
| 680 FX_FLOAT fWidth, | |
| 681 FX_FLOAT fItemHeight, | |
| 682 bool bAutoSize) { | |
| 683 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) | |
| 684 return; | |
| 685 | |
| 686 if (!bAutoSize) { | |
| 687 CFX_RectF rtItem; | |
| 688 rtItem.Set(0, size.y, fWidth, fItemHeight); | |
| 689 SetItemRect(this, pItem, rtItem); | |
| 690 } | |
| 691 size.x = fWidth; | |
| 692 size.y += fItemHeight; | |
| 693 } | |
| 694 | |
| 695 FX_FLOAT CFWL_ListBox::GetMaxTextWidth() { | |
| 696 FX_FLOAT fRet = 0.0f; | |
| 697 int32_t iCount = CountItems(this); | |
| 698 for (int32_t i = 0; i < iCount; i++) { | |
| 699 CFWL_ListItem* pItem = GetItem(this, i); | |
| 700 if (!pItem) | |
| 701 continue; | |
| 702 | |
| 703 CFX_WideString wsText = GetItemText(this, pItem); | |
| 704 CFX_SizeF sz = CalcTextSize(wsText, m_pProperties->m_pThemeProvider, false); | |
| 705 fRet = std::max(fRet, sz.x); | |
| 706 } | |
| 707 return fRet; | |
| 708 } | |
| 709 | |
| 710 FX_FLOAT CFWL_ListBox::GetScrollWidth() { | |
| 711 FX_FLOAT* pfWidth = static_cast<FX_FLOAT*>( | |
| 712 GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); | |
| 713 if (!pfWidth) | |
| 714 return 0; | |
| 715 return *pfWidth; | |
| 716 } | |
| 717 | |
| 718 FX_FLOAT CFWL_ListBox::CalcItemHeight() { | |
| 719 FX_FLOAT* pfFont = | |
| 720 static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::FontSize)); | |
| 721 if (!pfFont) | |
| 722 return 20; | |
| 723 return *pfFont + 2 * kItemTextMargin; | |
| 724 } | |
| 725 | |
| 726 void CFWL_ListBox::InitVerticalScrollBar() { | |
| 727 if (m_pVertScrollBar) | |
| 728 return; | |
| 729 | |
| 730 auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); | |
| 731 prop->m_dwStyleExes = FWL_STYLEEXT_SCB_Vert; | |
| 732 prop->m_dwStates = FWL_WGTSTATE_Invisible; | |
| 733 prop->m_pParent = this; | |
| 734 prop->m_pThemeProvider = m_pScrollBarTP; | |
| 735 m_pVertScrollBar = | |
| 736 pdfium::MakeUnique<CFWL_ScrollBar>(m_pOwnerApp, std::move(prop), this); | |
| 737 } | |
| 738 | |
| 739 void CFWL_ListBox::InitHorizontalScrollBar() { | |
| 740 if (m_pHorzScrollBar) | |
| 741 return; | |
| 742 | |
| 743 auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); | |
| 744 prop->m_dwStyleExes = FWL_STYLEEXT_SCB_Horz; | |
| 745 prop->m_dwStates = FWL_WGTSTATE_Invisible; | |
| 746 prop->m_pParent = this; | |
| 747 prop->m_pThemeProvider = m_pScrollBarTP; | |
| 748 m_pHorzScrollBar = | |
| 749 pdfium::MakeUnique<CFWL_ScrollBar>(m_pOwnerApp, std::move(prop), this); | |
| 750 } | |
| 751 | |
| 752 bool CFWL_ListBox::IsShowScrollBar(bool bVert) { | |
| 753 CFWL_ScrollBar* pScrollbar = | |
| 754 bVert ? m_pVertScrollBar.get() : m_pHorzScrollBar.get(); | |
| 755 if (!pScrollbar || (pScrollbar->GetStates() & FWL_WGTSTATE_Invisible)) | |
| 756 return false; | |
| 757 return !(m_pProperties->m_dwStyleExes & | |
| 758 FWL_STYLEEXT_LTB_ShowScrollBarFocus) || | |
| 759 (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused); | |
| 760 } | |
| 761 | |
| 762 void CFWL_ListBox::OnProcessMessage(CFWL_Message* pMessage) { | |
| 763 if (!pMessage) | |
| 764 return; | |
| 765 if (!IsEnabled()) | |
| 766 return; | |
| 767 | |
| 768 switch (pMessage->GetType()) { | |
| 769 case CFWL_Message::Type::SetFocus: | |
| 770 OnFocusChanged(pMessage, true); | |
| 771 break; | |
| 772 case CFWL_Message::Type::KillFocus: | |
| 773 OnFocusChanged(pMessage, false); | |
| 774 break; | |
| 775 case CFWL_Message::Type::Mouse: { | |
| 776 CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage); | |
| 777 switch (pMsg->m_dwCmd) { | |
| 778 case FWL_MouseCommand::LeftButtonDown: | |
| 779 OnLButtonDown(pMsg); | |
| 780 break; | |
| 781 case FWL_MouseCommand::LeftButtonUp: | |
| 782 OnLButtonUp(pMsg); | |
| 783 break; | |
| 784 default: | |
| 785 break; | |
| 786 } | |
| 787 break; | |
| 788 } | |
| 789 case CFWL_Message::Type::MouseWheel: | |
| 790 OnMouseWheel(static_cast<CFWL_MsgMouseWheel*>(pMessage)); | |
| 791 break; | |
| 792 case CFWL_Message::Type::Key: { | |
| 793 CFWL_MsgKey* pMsg = static_cast<CFWL_MsgKey*>(pMessage); | |
| 794 if (pMsg->m_dwCmd == FWL_KeyCommand::KeyDown) | |
| 795 OnKeyDown(pMsg); | |
| 796 break; | |
| 797 } | |
| 798 default: | |
| 799 break; | |
| 800 } | |
| 801 CFWL_Widget::OnProcessMessage(pMessage); | |
| 802 } | |
| 803 | |
| 804 void CFWL_ListBox::OnProcessEvent(CFWL_Event* pEvent) { | |
| 805 if (!pEvent) | |
| 806 return; | |
| 807 if (pEvent->GetType() != CFWL_Event::Type::Scroll) | |
| 808 return; | |
| 809 | |
| 810 CFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget; | |
| 811 if ((pSrcTarget == m_pVertScrollBar.get() && m_pVertScrollBar) || | |
| 812 (pSrcTarget == m_pHorzScrollBar.get() && m_pHorzScrollBar)) { | |
| 813 CFWL_EvtScroll* pScrollEvent = static_cast<CFWL_EvtScroll*>(pEvent); | |
| 814 OnScroll(static_cast<CFWL_ScrollBar*>(pSrcTarget), | |
| 815 pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos); | |
| 816 } | |
| 817 } | |
| 818 | |
| 819 void CFWL_ListBox::OnDrawWidget(CFX_Graphics* pGraphics, | |
| 820 const CFX_Matrix* pMatrix) { | |
| 821 DrawWidget(pGraphics, pMatrix); | |
| 822 } | |
| 823 | |
| 824 void CFWL_ListBox::OnFocusChanged(CFWL_Message* pMsg, bool bSet) { | |
| 825 if (GetStylesEx() & FWL_STYLEEXT_LTB_ShowScrollBarFocus) { | |
| 826 if (m_pVertScrollBar) { | |
| 827 if (bSet) | |
| 828 m_pVertScrollBar->RemoveStates(FWL_WGTSTATE_Invisible); | |
| 829 else | |
| 830 m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible); | |
| 831 } | |
| 832 if (m_pHorzScrollBar) { | |
| 833 if (bSet) | |
| 834 m_pHorzScrollBar->RemoveStates(FWL_WGTSTATE_Invisible); | |
| 835 else | |
| 836 m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible); | |
| 837 } | |
| 838 } | |
| 839 if (bSet) | |
| 840 m_pProperties->m_dwStates |= (FWL_WGTSTATE_Focused); | |
| 841 else | |
| 842 m_pProperties->m_dwStates &= ~(FWL_WGTSTATE_Focused); | |
| 843 | |
| 844 Repaint(&m_rtClient); | |
| 845 } | |
| 846 | |
| 847 void CFWL_ListBox::OnLButtonDown(CFWL_MsgMouse* pMsg) { | |
| 848 m_bLButtonDown = true; | |
| 849 if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) | |
| 850 SetFocus(true); | |
| 851 | |
| 852 CFWL_ListItem* pItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
| 853 if (!pItem) | |
| 854 return; | |
| 855 | |
| 856 if (IsMultiSelection()) { | |
| 857 if (pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl) { | |
| 858 bool bSelected = IsItemSelected(pItem); | |
| 859 SetSelectionDirect(pItem, !bSelected); | |
| 860 m_hAnchor = pItem; | |
| 861 } else if (pMsg->m_dwFlags & FWL_KEYFLAG_Shift) { | |
| 862 if (m_hAnchor) | |
| 863 SetSelection(m_hAnchor, pItem, true); | |
| 864 else | |
| 865 SetSelectionDirect(pItem, true); | |
| 866 } else { | |
| 867 SetSelection(pItem, pItem, true); | |
| 868 m_hAnchor = pItem; | |
| 869 } | |
| 870 } else { | |
| 871 SetSelection(pItem, pItem, true); | |
| 872 } | |
| 873 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check) { | |
| 874 CFWL_ListItem* hSelectedItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
| 875 CFX_RectF rtCheck; | |
| 876 GetItemCheckRectInternal(hSelectedItem, rtCheck); | |
| 877 bool bChecked = GetItemChecked(pItem); | |
| 878 if (rtCheck.Contains(pMsg->m_fx, pMsg->m_fy)) { | |
| 879 SetItemChecked(pItem, !bChecked); | |
| 880 Update(); | |
| 881 } | |
| 882 } | |
| 883 SetFocusItem(pItem); | |
| 884 ScrollToVisible(pItem); | |
| 885 SetGrab(true); | |
| 886 Repaint(&m_rtClient); | |
| 887 } | |
| 888 | |
| 889 void CFWL_ListBox::OnLButtonUp(CFWL_MsgMouse* pMsg) { | |
| 890 if (!m_bLButtonDown) | |
| 891 return; | |
| 892 | |
| 893 m_bLButtonDown = false; | |
| 894 SetGrab(false); | |
| 895 } | |
| 896 | |
| 897 void CFWL_ListBox::OnMouseWheel(CFWL_MsgMouseWheel* pMsg) { | |
| 898 if (IsShowScrollBar(true)) | |
| 899 m_pVertScrollBar->GetDelegate()->OnProcessMessage(pMsg); | |
| 900 } | |
| 901 | |
| 902 void CFWL_ListBox::OnKeyDown(CFWL_MsgKey* pMsg) { | |
| 903 uint32_t dwKeyCode = pMsg->m_dwKeyCode; | |
| 904 switch (dwKeyCode) { | |
| 905 case FWL_VKEY_Tab: | |
| 906 case FWL_VKEY_Up: | |
| 907 case FWL_VKEY_Down: | |
| 908 case FWL_VKEY_Home: | |
| 909 case FWL_VKEY_End: { | |
| 910 CFWL_ListItem* pItem = GetFocusedItem(); | |
| 911 pItem = GetListItem(pItem, dwKeyCode); | |
| 912 bool bShift = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Shift); | |
| 913 bool bCtrl = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl); | |
| 914 OnVK(pItem, bShift, bCtrl); | |
| 915 break; | |
| 916 } | |
| 917 default: | |
| 918 break; | |
| 919 } | |
| 920 } | |
| 921 | |
| 922 void CFWL_ListBox::OnVK(CFWL_ListItem* pItem, bool bShift, bool bCtrl) { | |
| 923 if (!pItem) | |
| 924 return; | |
| 925 | |
| 926 if (IsMultiSelection()) { | |
| 927 if (bCtrl) { | |
| 928 // Do nothing. | |
| 929 } else if (bShift) { | |
| 930 if (m_hAnchor) | |
| 931 SetSelection(m_hAnchor, pItem, true); | |
| 932 else | |
| 933 SetSelectionDirect(pItem, true); | |
| 934 } else { | |
| 935 SetSelection(pItem, pItem, true); | |
| 936 m_hAnchor = pItem; | |
| 937 } | |
| 938 } else { | |
| 939 SetSelection(pItem, pItem, true); | |
| 940 } | |
| 941 | |
| 942 SetFocusItem(pItem); | |
| 943 ScrollToVisible(pItem); | |
| 944 | |
| 945 CFX_RectF rtInvalidate; | |
| 946 rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width, | |
| 947 m_pProperties->m_rtWidget.height); | |
| 948 Repaint(&rtInvalidate); | |
| 949 } | |
| 950 | |
| 951 bool CFWL_ListBox::OnScroll(CFWL_ScrollBar* pScrollBar, | |
| 952 CFWL_EvtScroll::Code dwCode, | |
| 953 FX_FLOAT fPos) { | |
| 954 CFX_SizeF fs; | |
| 955 pScrollBar->GetRange(&fs.x, &fs.y); | |
| 956 FX_FLOAT iCurPos = pScrollBar->GetPos(); | |
| 957 FX_FLOAT fStep = pScrollBar->GetStepSize(); | |
| 958 switch (dwCode) { | |
| 959 case CFWL_EvtScroll::Code::Min: { | |
| 960 fPos = fs.x; | |
| 961 break; | |
| 962 } | |
| 963 case CFWL_EvtScroll::Code::Max: { | |
| 964 fPos = fs.y; | |
| 965 break; | |
| 966 } | |
| 967 case CFWL_EvtScroll::Code::StepBackward: { | |
| 968 fPos -= fStep; | |
| 969 if (fPos < fs.x + fStep / 2) | |
| 970 fPos = fs.x; | |
| 971 break; | |
| 972 } | |
| 973 case CFWL_EvtScroll::Code::StepForward: { | |
| 974 fPos += fStep; | |
| 975 if (fPos > fs.y - fStep / 2) | |
| 976 fPos = fs.y; | |
| 977 break; | |
| 978 } | |
| 979 case CFWL_EvtScroll::Code::PageBackward: { | |
| 980 fPos -= pScrollBar->GetPageSize(); | |
| 981 if (fPos < fs.x) | |
| 982 fPos = fs.x; | |
| 983 break; | |
| 984 } | |
| 985 case CFWL_EvtScroll::Code::PageForward: { | |
| 986 fPos += pScrollBar->GetPageSize(); | |
| 987 if (fPos > fs.y) | |
| 988 fPos = fs.y; | |
| 989 break; | |
| 990 } | |
| 991 case CFWL_EvtScroll::Code::Pos: | |
| 992 case CFWL_EvtScroll::Code::TrackPos: | |
| 993 case CFWL_EvtScroll::Code::None: | |
| 994 break; | |
| 995 case CFWL_EvtScroll::Code::EndScroll: | |
| 996 return false; | |
| 997 } | |
| 998 if (iCurPos != fPos) { | |
| 999 pScrollBar->SetPos(fPos); | |
| 1000 pScrollBar->SetTrackPos(fPos); | |
| 1001 Repaint(&m_rtClient); | |
| 1002 } | |
| 1003 return true; | |
| 1004 } | |
| 1005 | |
| 1006 CFX_WideString CFWL_ListBox::GetItemText(CFWL_Widget* pWidget, | |
| 1007 CFWL_ListItem* pItem) { | |
| 1008 return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_wsText : L""; | |
| 1009 } | |
| 1010 | |
| 1011 int32_t CFWL_ListBox::CountItems(const CFWL_Widget* pWidget) const { | |
| 1012 return pdfium::CollectionSize<int32_t>(m_ItemArray); | |
| 1013 } | |
| 1014 | |
| 1015 CFWL_ListItem* CFWL_ListBox::GetItem(const CFWL_Widget* pWidget, | |
| 1016 int32_t nIndex) const { | |
| 1017 if (nIndex < 0 || nIndex >= CountItems(pWidget)) | |
| 1018 return nullptr; | |
| 1019 return m_ItemArray[nIndex].get(); | |
| 1020 } | |
| 1021 | |
| 1022 int32_t CFWL_ListBox::GetItemIndex(CFWL_Widget* pWidget, CFWL_ListItem* pItem) { | |
| 1023 auto it = std::find_if( | |
| 1024 m_ItemArray.begin(), m_ItemArray.end(), | |
| 1025 [pItem](const std::unique_ptr<CFWL_ListItem>& candidate) { | |
| 1026 return candidate.get() == static_cast<CFWL_ListItem*>(pItem); | |
| 1027 }); | |
| 1028 return it != m_ItemArray.end() ? it - m_ItemArray.begin() : -1; | |
| 1029 } | |
| 1030 | |
| 1031 uint32_t CFWL_ListBox::GetItemStyles(CFWL_Widget* pWidget, | |
| 1032 CFWL_ListItem* pItem) { | |
| 1033 return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_dwStates : 0; | |
| 1034 } | |
| 1035 | |
| 1036 void CFWL_ListBox::GetItemRect(CFWL_Widget* pWidget, | |
| 1037 CFWL_ListItem* pItem, | |
| 1038 CFX_RectF& rtItem) { | |
| 1039 if (pItem) | |
| 1040 rtItem = static_cast<CFWL_ListItem*>(pItem)->m_rtItem; | |
| 1041 } | |
| 1042 | |
| 1043 void* CFWL_ListBox::GetItemData(CFWL_Widget* pWidget, CFWL_ListItem* pItem) { | |
| 1044 return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr; | |
| 1045 } | |
| 1046 | |
| 1047 void CFWL_ListBox::SetItemStyles(CFWL_Widget* pWidget, | |
| 1048 CFWL_ListItem* pItem, | |
| 1049 uint32_t dwStyle) { | |
| 1050 if (pItem) | |
| 1051 static_cast<CFWL_ListItem*>(pItem)->m_dwStates = dwStyle; | |
| 1052 } | |
| 1053 | |
| 1054 void CFWL_ListBox::SetItemRect(CFWL_Widget* pWidget, | |
| 1055 CFWL_ListItem* pItem, | |
| 1056 const CFX_RectF& rtItem) { | |
| 1057 if (pItem) | |
| 1058 static_cast<CFWL_ListItem*>(pItem)->m_rtItem = rtItem; | |
| 1059 } | |
| 1060 | |
| 1061 CFX_DIBitmap* CFWL_ListBox::GetItemIcon(CFWL_Widget* pWidget, | |
| 1062 CFWL_ListItem* pItem) { | |
| 1063 return static_cast<CFWL_ListItem*>(pItem)->m_pDIB; | |
| 1064 } | |
| 1065 | |
| 1066 void CFWL_ListBox::GetItemCheckRect(CFWL_Widget* pWidget, | |
| 1067 CFWL_ListItem* pItem, | |
| 1068 CFX_RectF& rtCheck) { | |
| 1069 rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox; | |
| 1070 } | |
| 1071 | |
| 1072 void CFWL_ListBox::SetItemCheckRect(CFWL_Widget* pWidget, | |
| 1073 CFWL_ListItem* pItem, | |
| 1074 const CFX_RectF& rtCheck) { | |
| 1075 static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck; | |
| 1076 } | |
| 1077 | |
| 1078 uint32_t CFWL_ListBox::GetItemCheckState(CFWL_Widget* pWidget, | |
| 1079 CFWL_ListItem* pItem) { | |
| 1080 return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState; | |
| 1081 } | |
| 1082 | |
| 1083 void CFWL_ListBox::SetItemCheckState(CFWL_Widget* pWidget, | |
| 1084 CFWL_ListItem* pItem, | |
| 1085 uint32_t dwCheckState) { | |
| 1086 static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState; | |
| 1087 } | |
| 1088 | |
| 1089 CFWL_ListItem* CFWL_ListBox::AddString(const CFX_WideStringC& wsAdd) { | |
| 1090 auto pItem = pdfium::MakeUnique<CFWL_ListItem>(); | |
| 1091 pItem->m_dwStates = 0; | |
| 1092 pItem->m_wsText = wsAdd; | |
| 1093 pItem->m_dwStates = 0; | |
| 1094 m_ItemArray.push_back(std::move(pItem)); | |
| 1095 return m_ItemArray.back().get(); | |
| 1096 } | |
| 1097 | |
| 1098 bool CFWL_ListBox::RemoveAt(int32_t iIndex) { | |
| 1099 if (iIndex < 0 || static_cast<size_t>(iIndex) >= m_ItemArray.size()) | |
| 1100 return false; | |
| 1101 | |
| 1102 m_ItemArray.erase(m_ItemArray.begin() + iIndex); | |
| 1103 return true; | |
| 1104 } | |
| 1105 | |
| 1106 bool CFWL_ListBox::DeleteString(CFWL_ListItem* pItem) { | |
| 1107 int32_t nIndex = GetItemIndex(this, pItem); | |
| 1108 if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size()) | |
| 1109 return false; | |
| 1110 | |
| 1111 int32_t iSel = nIndex + 1; | |
| 1112 if (iSel >= CountItems(this)) | |
| 1113 iSel = nIndex - 1; | |
| 1114 if (iSel >= 0) { | |
| 1115 CFWL_ListItem* pSel = static_cast<CFWL_ListItem*>(GetItem(this, iSel)); | |
| 1116 pSel->m_dwStates |= FWL_ITEMSTATE_LTB_Selected; | |
| 1117 } | |
| 1118 m_ItemArray.erase(m_ItemArray.begin() + nIndex); | |
| 1119 return true; | |
| 1120 } | |
| 1121 | |
| 1122 void CFWL_ListBox::DeleteAll() { | |
| 1123 m_ItemArray.clear(); | |
| 1124 } | |
| 1125 | |
| 1126 uint32_t CFWL_ListBox::GetItemStates(CFWL_ListItem* pItem) { | |
| 1127 if (!pItem) | |
| 1128 return 0; | |
| 1129 return pItem->m_dwStates | pItem->m_dwCheckState; | |
| 1130 } | |
| 1131 | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2559173002:
Move xfa/fwl/core to xfa/fwl. (Closed)
