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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 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2524173002:
Merge IFWL and CFWL classes. (Closed)
