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Unified Diff: xfa/fwl/core/ifwl_listbox.cpp

Issue 2524173002: Merge IFWL and CFWL classes. (Closed)
Patch Set: make chrome build happy Created 4 years, 1 month ago
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Index: xfa/fwl/core/ifwl_listbox.cpp
diff --git a/xfa/fwl/core/ifwl_listbox.cpp b/xfa/fwl/core/ifwl_listbox.cpp
deleted file mode 100644
index 6186e64a4baa294989560cc860c34fb340b3c039..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_listbox.cpp
+++ /dev/null
@@ -1,1126 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "xfa/fwl/core/ifwl_listbox.h"
-
-#include <algorithm>
-#include <memory>
-#include <utility>
-
-#include "third_party/base/ptr_util.h"
-#include "third_party/base/stl_util.h"
-#include "xfa/fde/tto/fde_textout.h"
-#include "xfa/fwl/core/cfwl_app.h"
-#include "xfa/fwl/core/cfwl_msgkey.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_msgmousewheel.h"
-#include "xfa/fwl/core/cfwl_themebackground.h"
-#include "xfa/fwl/core/cfwl_themepart.h"
-#include "xfa/fwl/core/cfwl_themetext.h"
-#include "xfa/fwl/core/ifwl_themeprovider.h"
-
-namespace {
-
-const int kItemTextMargin = 2;
-
-} // namespace
-
-IFWL_ListBox::IFWL_ListBox(const CFWL_App* app,
- std::unique_ptr<CFWL_WidgetProperties> properties,
- IFWL_Widget* pOuter)
- : IFWL_Widget(app, std::move(properties), pOuter),
- m_dwTTOStyles(0),
- m_iTTOAligns(0),
- m_hAnchor(nullptr),
- m_fScorllBarWidth(0),
- m_bLButtonDown(false),
- m_pScrollBarTP(nullptr) {
- m_rtClient.Reset();
- m_rtConent.Reset();
- m_rtStatic.Reset();
-}
-
-IFWL_ListBox::~IFWL_ListBox() {}
-
-FWL_Type IFWL_ListBox::GetClassID() const {
- return FWL_Type::ListBox;
-}
-
-void IFWL_ListBox::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
- if (!bAutoSize) {
- rect = m_pProperties->m_rtWidget;
- return;
- }
-
- rect.Set(0, 0, 0, 0);
- if (!m_pProperties->m_pThemeProvider)
- m_pProperties->m_pThemeProvider = GetAvailableTheme();
-
- CFX_SizeF fs = CalcSize(true);
- rect.Set(0, 0, fs.x, fs.y);
- IFWL_Widget::GetWidgetRect(rect, true);
-}
-
-void IFWL_ListBox::Update() {
- if (IsLocked())
- return;
- if (!m_pProperties->m_pThemeProvider)
- m_pProperties->m_pThemeProvider = GetAvailableTheme();
-
- switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_AlignMask) {
- case FWL_STYLEEXT_LTB_LeftAlign: {
- m_iTTOAligns = FDE_TTOALIGNMENT_CenterLeft;
- break;
- }
- case FWL_STYLEEXT_LTB_RightAlign: {
- m_iTTOAligns = FDE_TTOALIGNMENT_CenterRight;
- break;
- }
- case FWL_STYLEEXT_LTB_CenterAlign:
- default: {
- m_iTTOAligns = FDE_TTOALIGNMENT_Center;
- break;
- }
- }
- if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading)
- m_dwTTOStyles |= FDE_TTOSTYLE_RTL;
-
- m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine;
- m_fScorllBarWidth = GetScrollWidth();
- CalcSize();
-}
-
-FWL_WidgetHit IFWL_ListBox::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
- if (IsShowScrollBar(false)) {
- CFX_RectF rect;
- m_pHorzScrollBar->GetWidgetRect(rect);
- if (rect.Contains(fx, fy))
- return FWL_WidgetHit::HScrollBar;
- }
- if (IsShowScrollBar(true)) {
- CFX_RectF rect;
- m_pVertScrollBar->GetWidgetRect(rect);
- if (rect.Contains(fx, fy))
- return FWL_WidgetHit::VScrollBar;
- }
- if (m_rtClient.Contains(fx, fy))
- return FWL_WidgetHit::Client;
- return FWL_WidgetHit::Unknown;
-}
-
-void IFWL_ListBox::DrawWidget(CFX_Graphics* pGraphics,
- const CFX_Matrix* pMatrix) {
- if (!pGraphics)
- return;
- if (!m_pProperties->m_pThemeProvider)
- return;
-
- IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
- pGraphics->SaveGraphState();
- if (HasBorder())
- DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
- if (HasEdge())
- DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
-
- CFX_RectF rtClip(m_rtConent);
- if (IsShowScrollBar(false))
- rtClip.height -= m_fScorllBarWidth;
- if (IsShowScrollBar(true))
- rtClip.width -= m_fScorllBarWidth;
- if (pMatrix)
- pMatrix->TransformRect(rtClip);
-
- pGraphics->SetClipRect(rtClip);
- if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_NoBackground) == 0)
- DrawBkground(pGraphics, pTheme, pMatrix);
-
- DrawItems(pGraphics, pTheme, pMatrix);
- pGraphics->RestoreGraphState();
-}
-
-void IFWL_ListBox::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) {
- if (pThemeProvider)
- m_pProperties->m_pThemeProvider = pThemeProvider;
-}
-
-int32_t IFWL_ListBox::CountSelItems() {
- int32_t iRet = 0;
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- continue;
-
- uint32_t dwStyle = GetItemStyles(this, pItem);
- if (dwStyle & FWL_ITEMSTATE_LTB_Selected)
- iRet++;
- }
- return iRet;
-}
-
-CFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) {
- int32_t idx = GetSelIndex(nIndexSel);
- if (idx < 0)
- return nullptr;
- return GetItem(this, idx);
-}
-
-int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) {
- int32_t index = 0;
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- return -1;
-
- uint32_t dwStyle = GetItemStyles(this, pItem);
- if (dwStyle & FWL_ITEMSTATE_LTB_Selected) {
- if (index == nIndex)
- return i;
- index++;
- }
- }
- return -1;
-}
-
-void IFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) {
- if (!pItem) {
- if (bSelect) {
- SelectAll();
- } else {
- ClearSelection();
- SetFocusItem(nullptr);
- }
- return;
- }
- if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection)
- SetSelectionDirect(pItem, bSelect);
- else
- SetSelection(pItem, pItem, bSelect);
-}
-
-void IFWL_ListBox::GetDataProviderItemText(CFWL_ListItem* pItem,
- CFX_WideString& wsText) {
- if (!pItem)
- return;
- GetItemText(this, pItem, wsText);
-}
-
-CFWL_ListItem* IFWL_ListBox::GetListItem(CFWL_ListItem* pItem,
- uint32_t dwKeyCode) {
- CFWL_ListItem* hRet = nullptr;
- switch (dwKeyCode) {
- case FWL_VKEY_Up:
- case FWL_VKEY_Down:
- case FWL_VKEY_Home:
- case FWL_VKEY_End: {
- const bool bUp = dwKeyCode == FWL_VKEY_Up;
- const bool bDown = dwKeyCode == FWL_VKEY_Down;
- const bool bHome = dwKeyCode == FWL_VKEY_Home;
- int32_t iDstItem = -1;
- if (bUp || bDown) {
- int32_t index = GetItemIndex(this, pItem);
- iDstItem = dwKeyCode == FWL_VKEY_Up ? index - 1 : index + 1;
- } else if (bHome) {
- iDstItem = 0;
- } else {
- int32_t iCount = CountItems(this);
- iDstItem = iCount - 1;
- }
- hRet = GetItem(this, iDstItem);
- break;
- }
- default:
- break;
- }
- return hRet;
-}
-
-void IFWL_ListBox::SetSelection(CFWL_ListItem* hStart,
- CFWL_ListItem* hEnd,
- bool bSelected) {
- int32_t iStart = GetItemIndex(this, hStart);
- int32_t iEnd = GetItemIndex(this, hEnd);
- if (iStart > iEnd) {
- int32_t iTemp = iStart;
- iStart = iEnd;
- iEnd = iTemp;
- }
- if (bSelected) {
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- SetSelectionDirect(pItem, false);
- }
- }
- for (; iStart <= iEnd; iStart++) {
- CFWL_ListItem* pItem = GetItem(this, iStart);
- SetSelectionDirect(pItem, bSelected);
- }
-}
-
-void IFWL_ListBox::SetSelectionDirect(CFWL_ListItem* pItem, bool bSelect) {
- uint32_t dwOldStyle = GetItemStyles(this, pItem);
- bSelect ? dwOldStyle |= FWL_ITEMSTATE_LTB_Selected
- : dwOldStyle &= ~FWL_ITEMSTATE_LTB_Selected;
- SetItemStyles(this, pItem, dwOldStyle);
-}
-
-bool IFWL_ListBox::IsItemSelected(CFWL_ListItem* pItem) {
- uint32_t dwState = GetItemStyles(this, pItem);
- return (dwState & FWL_ITEMSTATE_LTB_Selected) != 0;
-}
-
-void IFWL_ListBox::ClearSelection() {
- bool bMulti = m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection;
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- uint32_t dwState = GetItemStyles(this, pItem);
- if (!(dwState & FWL_ITEMSTATE_LTB_Selected))
- continue;
- SetSelectionDirect(pItem, false);
- if (!bMulti)
- return;
- }
-}
-
-void IFWL_ListBox::SelectAll() {
- if (!m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection)
- return;
-
- int32_t iCount = CountItems(this);
- if (iCount <= 0)
- return;
-
- CFWL_ListItem* pItemStart = GetItem(this, 0);
- CFWL_ListItem* pItemEnd = GetItem(this, iCount - 1);
- SetSelection(pItemStart, pItemEnd, false);
-}
-
-CFWL_ListItem* IFWL_ListBox::GetFocusedItem() {
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- return nullptr;
- if (GetItemStyles(this, pItem) & FWL_ITEMSTATE_LTB_Focused)
- return pItem;
- }
- return nullptr;
-}
-
-void IFWL_ListBox::SetFocusItem(CFWL_ListItem* pItem) {
- CFWL_ListItem* hFocus = GetFocusedItem();
- if (pItem == hFocus)
- return;
-
- if (hFocus) {
- uint32_t dwStyle = GetItemStyles(this, hFocus);
- dwStyle &= ~FWL_ITEMSTATE_LTB_Focused;
- SetItemStyles(this, hFocus, dwStyle);
- }
- if (pItem) {
- uint32_t dwStyle = GetItemStyles(this, pItem);
- dwStyle |= FWL_ITEMSTATE_LTB_Focused;
- SetItemStyles(this, pItem, dwStyle);
- }
-}
-
-CFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
- fx -= m_rtConent.left, fy -= m_rtConent.top;
- FX_FLOAT fPosX = 0.0f;
- if (m_pHorzScrollBar)
- fPosX = m_pHorzScrollBar->GetPos();
-
- FX_FLOAT fPosY = 0.0;
- if (m_pVertScrollBar)
- fPosY = m_pVertScrollBar->GetPos();
-
- int32_t nCount = CountItems(this);
- for (int32_t i = 0; i < nCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- continue;
-
- CFX_RectF rtItem;
- GetItemRect(this, pItem, rtItem);
- rtItem.Offset(-fPosX, -fPosY);
- if (rtItem.Contains(fx, fy))
- return pItem;
- }
- return nullptr;
-}
-
-bool IFWL_ListBox::GetItemCheckRectInternal(CFWL_ListItem* pItem,
- CFX_RectF& rtCheck) {
- if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check))
- return false;
- GetItemCheckRect(this, pItem, rtCheck);
- return true;
-}
-
-bool IFWL_ListBox::GetItemChecked(CFWL_ListItem* pItem) {
- if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check))
- return false;
- return !!(GetItemCheckState(this, pItem) & FWL_ITEMSTATE_LTB_Checked);
-}
-
-bool IFWL_ListBox::SetItemChecked(CFWL_ListItem* pItem, bool bChecked) {
- if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check))
- return false;
-
- SetItemCheckState(this, pItem, bChecked ? FWL_ITEMSTATE_LTB_Checked : 0);
- return true;
-}
-
-bool IFWL_ListBox::ScrollToVisible(CFWL_ListItem* pItem) {
- if (!m_pVertScrollBar)
- return false;
-
- CFX_RectF rtItem;
- GetItemRect(this, pItem, rtItem);
-
- bool bScroll = false;
- FX_FLOAT fPosY = m_pVertScrollBar->GetPos();
- rtItem.Offset(0, -fPosY + m_rtConent.top);
- if (rtItem.top < m_rtConent.top) {
- fPosY += rtItem.top - m_rtConent.top;
- bScroll = true;
- } else if (rtItem.bottom() > m_rtConent.bottom()) {
- fPosY += rtItem.bottom() - m_rtConent.bottom();
- bScroll = true;
- }
- if (!bScroll)
- return false;
-
- m_pVertScrollBar->SetPos(fPosY);
- m_pVertScrollBar->SetTrackPos(fPosY);
- Repaint(&m_rtClient);
- return true;
-}
-
-void IFWL_ListBox::DrawBkground(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- const CFX_Matrix* pMatrix) {
- if (!pGraphics)
- return;
- if (!pTheme)
- return;
-
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = CFWL_Part::Background;
- param.m_dwStates = 0;
- param.m_pGraphics = pGraphics;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = m_rtClient;
- if (IsShowScrollBar(false) && IsShowScrollBar(true))
- param.m_pData = &m_rtStatic;
- if (!IsEnabled())
- param.m_dwStates = CFWL_PartState_Disabled;
-
- pTheme->DrawBackground(&param);
-}
-
-void IFWL_ListBox::DrawItems(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- const CFX_Matrix* pMatrix) {
- FX_FLOAT fPosX = 0.0f;
- if (m_pHorzScrollBar)
- fPosX = m_pHorzScrollBar->GetPos();
-
- FX_FLOAT fPosY = 0.0f;
- if (m_pVertScrollBar)
- fPosY = m_pVertScrollBar->GetPos();
-
- CFX_RectF rtView(m_rtConent);
- if (m_pHorzScrollBar)
- rtView.height -= m_fScorllBarWidth;
- if (m_pVertScrollBar)
- rtView.width -= m_fScorllBarWidth;
-
- bool bMultiCol =
- !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn);
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- continue;
-
- CFX_RectF rtItem;
- GetItemRect(this, pItem, rtItem);
- rtItem.Offset(m_rtConent.left - fPosX, m_rtConent.top - fPosY);
- if (rtItem.bottom() < m_rtConent.top)
- continue;
- if (rtItem.top >= m_rtConent.bottom())
- break;
- if (bMultiCol && rtItem.left > m_rtConent.right())
- break;
-
- if (!(GetStylesEx() & FWL_STYLEEXT_LTB_OwnerDraw))
- DrawItem(pGraphics, pTheme, pItem, i, rtItem, pMatrix);
- }
-}
-
-void IFWL_ListBox::DrawItem(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- CFWL_ListItem* pItem,
- int32_t Index,
- const CFX_RectF& rtItem,
- const CFX_Matrix* pMatrix) {
- uint32_t dwItemStyles = GetItemStyles(this, pItem);
- uint32_t dwPartStates = CFWL_PartState_Normal;
- if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
- dwPartStates = CFWL_PartState_Disabled;
- else if (dwItemStyles & FWL_ITEMSTATE_LTB_Selected)
- dwPartStates = CFWL_PartState_Selected;
-
- if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused &&
- dwItemStyles & FWL_ITEMSTATE_LTB_Focused) {
- dwPartStates |= CFWL_PartState_Focused;
- }
-
- CFWL_ThemeBackground bg_param;
- bg_param.m_pWidget = this;
- bg_param.m_iPart = CFWL_Part::ListItem;
- bg_param.m_dwStates = dwPartStates;
- bg_param.m_pGraphics = pGraphics;
- bg_param.m_matrix.Concat(*pMatrix);
- bg_param.m_rtPart = rtItem;
- bg_param.m_bMaximize = true;
- CFX_RectF rtFocus(rtItem);
- bg_param.m_pData = &rtFocus;
- if (m_pVertScrollBar && !m_pHorzScrollBar &&
- (dwPartStates & CFWL_PartState_Focused)) {
- bg_param.m_rtPart.left += 1;
- bg_param.m_rtPart.width -= (m_fScorllBarWidth + 1);
- rtFocus.Deflate(0.5, 0.5, 1 + m_fScorllBarWidth, 1);
- }
- pTheme->DrawBackground(&bg_param);
-
- bool bHasIcon = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Icon);
- if (bHasIcon) {
- CFX_RectF rtDIB;
- CFX_DIBitmap* pDib = GetItemIcon(this, pItem);
- rtDIB.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height);
- if (pDib) {
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = CFWL_Part::Icon;
- param.m_pGraphics = pGraphics;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = rtDIB;
- param.m_bMaximize = true;
- param.m_pImage = pDib;
- pTheme->DrawBackground(&param);
- }
- }
-
- bool bHasCheck = !!(GetStylesEx() & FWL_STYLEEXT_LTB_Check);
- if (bHasCheck) {
- CFX_RectF rtCheck;
- rtCheck.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height);
- rtCheck.Deflate(2, 2, 2, 2);
- SetItemCheckRect(this, pItem, rtCheck);
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = CFWL_Part::Check;
- param.m_pGraphics = pGraphics;
- if (GetItemChecked(pItem))
- param.m_dwStates = CFWL_PartState_Checked;
- else
- param.m_dwStates = CFWL_PartState_Normal;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = rtCheck;
- param.m_bMaximize = true;
- pTheme->DrawBackground(&param);
- }
-
- CFX_WideString wsText;
- GetItemText(this, pItem, wsText);
- if (wsText.GetLength() <= 0)
- return;
-
- CFX_RectF rtText(rtItem);
- rtText.Deflate(kItemTextMargin, kItemTextMargin);
- if (bHasIcon || bHasCheck)
- rtText.Deflate(rtItem.height, 0, 0, 0);
-
- CFWL_ThemeText textParam;
- textParam.m_pWidget = this;
- textParam.m_iPart = CFWL_Part::ListItem;
- textParam.m_dwStates = dwPartStates;
- textParam.m_pGraphics = pGraphics;
- textParam.m_matrix.Concat(*pMatrix);
- textParam.m_rtPart = rtText;
- textParam.m_wsText = wsText;
- textParam.m_dwTTOStyles = m_dwTTOStyles;
- textParam.m_iTTOAlign = m_iTTOAligns;
- textParam.m_bMaximize = true;
- pTheme->DrawText(&textParam);
-}
-
-CFX_SizeF IFWL_ListBox::CalcSize(bool bAutoSize) {
- CFX_SizeF fs;
- if (!m_pProperties->m_pThemeProvider)
- return fs;
-
- GetClientRect(m_rtClient);
- m_rtConent = m_rtClient;
- CFX_RectF rtUIMargin;
- rtUIMargin.Set(0, 0, 0, 0);
- if (!m_pOuter) {
- CFX_RectF* pUIMargin = static_cast<CFX_RectF*>(
- GetThemeCapacity(CFWL_WidgetCapacity::UIMargin));
- if (pUIMargin) {
- m_rtConent.Deflate(pUIMargin->left, pUIMargin->top, pUIMargin->width,
- pUIMargin->height);
- }
- }
-
- FX_FLOAT fWidth = GetMaxTextWidth();
- fWidth += 2 * kItemTextMargin;
- if (!bAutoSize) {
- FX_FLOAT fActualWidth =
- m_rtClient.width - rtUIMargin.left - rtUIMargin.width;
- fWidth = std::max(fWidth, fActualWidth);
- }
-
- m_fItemHeight = CalcItemHeight();
- if ((GetStylesEx() & FWL_STYLEEXT_LTB_Icon))
- fWidth += m_fItemHeight;
-
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* htem = GetItem(this, i);
- GetItemSize(fs, htem, fWidth, m_fItemHeight, bAutoSize);
- }
- if (bAutoSize)
- return fs;
-
- FX_FLOAT iWidth = m_rtClient.width - rtUIMargin.left - rtUIMargin.width;
- FX_FLOAT iHeight = m_rtClient.height;
- bool bShowVertScr =
- (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) &&
- (m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll);
- bool bShowHorzScr =
- (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) &&
- (m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll);
- if (!bShowVertScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll &&
- (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) == 0) {
- bShowVertScr = (fs.y > iHeight);
- }
- if (!bShowHorzScr && m_pProperties->m_dwStyles & FWL_WGTSTYLE_HScroll)
- bShowHorzScr = (fs.x > iWidth);
-
- CFX_SizeF szRange;
- if (bShowVertScr) {
- if (!m_pVertScrollBar)
- InitScrollBar();
-
- CFX_RectF rtScrollBar;
- rtScrollBar.Set(m_rtClient.right() - m_fScorllBarWidth, m_rtClient.top,
- m_fScorllBarWidth, m_rtClient.height - 1);
- if (bShowHorzScr)
- rtScrollBar.height -= m_fScorllBarWidth;
-
- m_pVertScrollBar->SetWidgetRect(rtScrollBar);
- szRange.x = 0, szRange.y = fs.y - m_rtConent.height;
- szRange.y = std::max(szRange.y, m_fItemHeight);
-
- m_pVertScrollBar->SetRange(szRange.x, szRange.y);
- m_pVertScrollBar->SetPageSize(rtScrollBar.height * 9 / 10);
- m_pVertScrollBar->SetStepSize(m_fItemHeight);
-
- FX_FLOAT fPos =
- std::min(std::max(m_pVertScrollBar->GetPos(), 0.f), szRange.y);
- m_pVertScrollBar->SetPos(fPos);
- m_pVertScrollBar->SetTrackPos(fPos);
- if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) ==
- 0 ||
- (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) {
- m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, false);
- }
- m_pVertScrollBar->Update();
- } else if (m_pVertScrollBar) {
- m_pVertScrollBar->SetPos(0);
- m_pVertScrollBar->SetTrackPos(0);
- m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, true);
- }
- if (bShowHorzScr) {
- if (!m_pHorzScrollBar)
- InitScrollBar(false);
-
- CFX_RectF rtScrollBar;
- rtScrollBar.Set(m_rtClient.left, m_rtClient.bottom() - m_fScorllBarWidth,
- m_rtClient.width, m_fScorllBarWidth);
- if (bShowVertScr)
- rtScrollBar.width -= m_fScorllBarWidth;
-
- m_pHorzScrollBar->SetWidgetRect(rtScrollBar);
- szRange.x = 0, szRange.y = fs.x - rtScrollBar.width;
- m_pHorzScrollBar->SetRange(szRange.x, szRange.y);
- m_pHorzScrollBar->SetPageSize(fWidth * 9 / 10);
- m_pHorzScrollBar->SetStepSize(fWidth / 10);
-
- FX_FLOAT fPos =
- std::min(std::max(m_pHorzScrollBar->GetPos(), 0.f), szRange.y);
- m_pHorzScrollBar->SetPos(fPos);
- m_pHorzScrollBar->SetTrackPos(fPos);
- if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarFocus) ==
- 0 ||
- (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)) {
- m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, false);
- }
- m_pHorzScrollBar->Update();
- } else if (m_pHorzScrollBar) {
- m_pHorzScrollBar->SetPos(0);
- m_pHorzScrollBar->SetTrackPos(0);
- m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, true);
- }
- if (bShowVertScr && bShowHorzScr) {
- m_rtStatic.Set(m_rtClient.right() - m_fScorllBarWidth,
- m_rtClient.bottom() - m_fScorllBarWidth, m_fScorllBarWidth,
- m_fScorllBarWidth);
- }
- return fs;
-}
-
-void IFWL_ListBox::GetItemSize(CFX_SizeF& size,
- CFWL_ListItem* pItem,
- FX_FLOAT fWidth,
- FX_FLOAT fItemHeight,
- bool bAutoSize) {
- if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn)
- return;
-
- if (!bAutoSize) {
- CFX_RectF rtItem;
- rtItem.Set(0, size.y, fWidth, fItemHeight);
- SetItemRect(this, pItem, rtItem);
- }
- size.x = fWidth;
- size.y += fItemHeight;
-}
-
-FX_FLOAT IFWL_ListBox::GetMaxTextWidth() {
- FX_FLOAT fRet = 0.0f;
- int32_t iCount = CountItems(this);
- for (int32_t i = 0; i < iCount; i++) {
- CFWL_ListItem* pItem = GetItem(this, i);
- if (!pItem)
- continue;
-
- CFX_WideString wsText;
- GetItemText(this, pItem, wsText);
- CFX_SizeF sz = CalcTextSize(wsText, m_pProperties->m_pThemeProvider);
- fRet = std::max(fRet, sz.x);
- }
- return fRet;
-}
-
-FX_FLOAT IFWL_ListBox::GetScrollWidth() {
- FX_FLOAT* pfWidth = static_cast<FX_FLOAT*>(
- GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
- if (!pfWidth)
- return 0;
- return *pfWidth;
-}
-
-FX_FLOAT IFWL_ListBox::CalcItemHeight() {
- FX_FLOAT* pfFont =
- static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::FontSize));
- if (!pfFont)
- return 20;
- return *pfFont + 2 * kItemTextMargin;
-}
-
-void IFWL_ListBox::InitScrollBar(bool bVert) {
- if ((bVert && m_pVertScrollBar) || (!bVert && m_pHorzScrollBar))
- return;
-
- auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>();
- prop->m_dwStyleExes = bVert ? FWL_STYLEEXT_SCB_Vert : FWL_STYLEEXT_SCB_Horz;
- prop->m_dwStates = FWL_WGTSTATE_Invisible;
- prop->m_pParent = this;
- prop->m_pThemeProvider = m_pScrollBarTP;
- CFWL_ScrollBar* sb = new CFWL_ScrollBar(m_pOwnerApp, std::move(prop), this);
- if (bVert)
- m_pVertScrollBar.reset(sb);
- else
- m_pHorzScrollBar.reset(sb);
-}
-
-bool IFWL_ListBox::IsShowScrollBar(bool bVert) {
- CFWL_ScrollBar* pScrollbar =
- bVert ? m_pVertScrollBar.get() : m_pHorzScrollBar.get();
- if (!pScrollbar || (pScrollbar->GetStates() & FWL_WGTSTATE_Invisible))
- return false;
- return !(m_pProperties->m_dwStyleExes &
- FWL_STYLEEXT_LTB_ShowScrollBarFocus) ||
- (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused);
-}
-
-void IFWL_ListBox::OnProcessMessage(CFWL_Message* pMessage) {
- if (!pMessage)
- return;
- if (!IsEnabled())
- return;
-
- CFWL_MessageType dwMsgCode = pMessage->GetClassID();
- switch (dwMsgCode) {
- case CFWL_MessageType::SetFocus:
- OnFocusChanged(pMessage, true);
- break;
- case CFWL_MessageType::KillFocus:
- OnFocusChanged(pMessage, false);
- break;
- case CFWL_MessageType::Mouse: {
- CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
- switch (pMsg->m_dwCmd) {
- case FWL_MouseCommand::LeftButtonDown:
- OnLButtonDown(pMsg);
- break;
- case FWL_MouseCommand::LeftButtonUp:
- OnLButtonUp(pMsg);
- break;
- default:
- break;
- }
- break;
- }
- case CFWL_MessageType::MouseWheel:
- OnMouseWheel(static_cast<CFWL_MsgMouseWheel*>(pMessage));
- break;
- case CFWL_MessageType::Key: {
- CFWL_MsgKey* pMsg = static_cast<CFWL_MsgKey*>(pMessage);
- if (pMsg->m_dwCmd == FWL_KeyCommand::KeyDown)
- OnKeyDown(pMsg);
- break;
- }
- default:
- break;
- }
- IFWL_Widget::OnProcessMessage(pMessage);
-}
-
-void IFWL_ListBox::OnProcessEvent(CFWL_Event* pEvent) {
- if (!pEvent)
- return;
- if (pEvent->GetClassID() != CFWL_EventType::Scroll)
- return;
-
- IFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget;
- if ((pSrcTarget == m_pVertScrollBar.get() && m_pVertScrollBar) ||
- (pSrcTarget == m_pHorzScrollBar.get() && m_pHorzScrollBar)) {
- CFWL_EvtScroll* pScrollEvent = static_cast<CFWL_EvtScroll*>(pEvent);
- OnScroll(static_cast<CFWL_ScrollBar*>(pSrcTarget),
- pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos);
- }
-}
-
-void IFWL_ListBox::OnDrawWidget(CFX_Graphics* pGraphics,
- const CFX_Matrix* pMatrix) {
- DrawWidget(pGraphics, pMatrix);
-}
-
-void IFWL_ListBox::OnFocusChanged(CFWL_Message* pMsg, bool bSet) {
- if (GetStylesEx() & FWL_STYLEEXT_LTB_ShowScrollBarFocus) {
- if (m_pVertScrollBar)
- m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet);
- if (m_pHorzScrollBar)
- m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet);
- }
- if (bSet)
- m_pProperties->m_dwStates |= (FWL_WGTSTATE_Focused);
- else
- m_pProperties->m_dwStates &= ~(FWL_WGTSTATE_Focused);
-
- Repaint(&m_rtClient);
-}
-
-void IFWL_ListBox::OnLButtonDown(CFWL_MsgMouse* pMsg) {
- m_bLButtonDown = true;
- if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)
- SetFocus(true);
-
- CFWL_ListItem* pItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
- if (!pItem)
- return;
-
- if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) {
- if (pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl) {
- bool bSelected = IsItemSelected(pItem);
- SetSelectionDirect(pItem, !bSelected);
- m_hAnchor = pItem;
- } else if (pMsg->m_dwFlags & FWL_KEYFLAG_Shift) {
- if (m_hAnchor)
- SetSelection(m_hAnchor, pItem, true);
- else
- SetSelectionDirect(pItem, true);
- } else {
- SetSelection(pItem, pItem, true);
- m_hAnchor = pItem;
- }
- } else {
- SetSelection(pItem, pItem, true);
- }
- if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check) {
- CFWL_ListItem* hSelectedItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
- CFX_RectF rtCheck;
- GetItemCheckRectInternal(hSelectedItem, rtCheck);
- bool bChecked = GetItemChecked(pItem);
- if (rtCheck.Contains(pMsg->m_fx, pMsg->m_fy)) {
- SetItemChecked(pItem, !bChecked);
- Update();
- }
- }
- SetFocusItem(pItem);
- ScrollToVisible(pItem);
- SetGrab(true);
- Repaint(&m_rtClient);
-}
-
-void IFWL_ListBox::OnLButtonUp(CFWL_MsgMouse* pMsg) {
- if (!m_bLButtonDown)
- return;
-
- m_bLButtonDown = false;
- SetGrab(false);
-}
-
-void IFWL_ListBox::OnMouseWheel(CFWL_MsgMouseWheel* pMsg) {
- if (IsShowScrollBar(true))
- m_pVertScrollBar->GetDelegate()->OnProcessMessage(pMsg);
-}
-
-void IFWL_ListBox::OnKeyDown(CFWL_MsgKey* pMsg) {
- uint32_t dwKeyCode = pMsg->m_dwKeyCode;
- switch (dwKeyCode) {
- case FWL_VKEY_Tab:
- case FWL_VKEY_Up:
- case FWL_VKEY_Down:
- case FWL_VKEY_Home:
- case FWL_VKEY_End: {
- CFWL_ListItem* pItem = GetFocusedItem();
- pItem = GetListItem(pItem, dwKeyCode);
- bool bShift = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Shift);
- bool bCtrl = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl);
- OnVK(pItem, bShift, bCtrl);
- break;
- }
- default:
- break;
- }
-}
-
-void IFWL_ListBox::OnVK(CFWL_ListItem* pItem, bool bShift, bool bCtrl) {
- if (!pItem)
- return;
-
- if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) {
- if (bCtrl) {
- // Do nothing.
- } else if (bShift) {
- if (m_hAnchor)
- SetSelection(m_hAnchor, pItem, true);
- else
- SetSelectionDirect(pItem, true);
- } else {
- SetSelection(pItem, pItem, true);
- m_hAnchor = pItem;
- }
- } else {
- SetSelection(pItem, pItem, true);
- }
-
- SetFocusItem(pItem);
- ScrollToVisible(pItem);
-
- CFX_RectF rtInvalidate;
- rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width,
- m_pProperties->m_rtWidget.height);
- Repaint(&rtInvalidate);
-}
-
-bool IFWL_ListBox::OnScroll(CFWL_ScrollBar* pScrollBar,
- FWL_SCBCODE dwCode,
- FX_FLOAT fPos) {
- CFX_SizeF fs;
- pScrollBar->GetRange(&fs.x, &fs.y);
- FX_FLOAT iCurPos = pScrollBar->GetPos();
- FX_FLOAT fStep = pScrollBar->GetStepSize();
- switch (dwCode) {
- case FWL_SCBCODE::Min: {
- fPos = fs.x;
- break;
- }
- case FWL_SCBCODE::Max: {
- fPos = fs.y;
- break;
- }
- case FWL_SCBCODE::StepBackward: {
- fPos -= fStep;
- if (fPos < fs.x + fStep / 2)
- fPos = fs.x;
- break;
- }
- case FWL_SCBCODE::StepForward: {
- fPos += fStep;
- if (fPos > fs.y - fStep / 2)
- fPos = fs.y;
- break;
- }
- case FWL_SCBCODE::PageBackward: {
- fPos -= pScrollBar->GetPageSize();
- if (fPos < fs.x)
- fPos = fs.x;
- break;
- }
- case FWL_SCBCODE::PageForward: {
- fPos += pScrollBar->GetPageSize();
- if (fPos > fs.y)
- fPos = fs.y;
- break;
- }
- case FWL_SCBCODE::Pos:
- case FWL_SCBCODE::TrackPos:
- case FWL_SCBCODE::None:
- break;
- case FWL_SCBCODE::EndScroll:
- return false;
- }
- if (iCurPos != fPos) {
- pScrollBar->SetPos(fPos);
- pScrollBar->SetTrackPos(fPos);
- Repaint(&m_rtClient);
- }
- return true;
-}
-
-void IFWL_ListBox::GetItemText(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- CFX_WideString& wsText) {
- if (pItem)
- wsText = static_cast<CFWL_ListItem*>(pItem)->m_wsText;
-}
-
-int32_t IFWL_ListBox::CountItems(const IFWL_Widget* pWidget) const {
- return pdfium::CollectionSize<int32_t>(m_ItemArray);
-}
-
-CFWL_ListItem* IFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
- int32_t nIndex) const {
- if (nIndex < 0 || nIndex >= CountItems(pWidget))
- return nullptr;
- return m_ItemArray[nIndex].get();
-}
-
-int32_t IFWL_ListBox::GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
- auto it = std::find_if(
- m_ItemArray.begin(), m_ItemArray.end(),
- [pItem](const std::unique_ptr<CFWL_ListItem>& candidate) {
- return candidate.get() == static_cast<CFWL_ListItem*>(pItem);
- });
- return it != m_ItemArray.end() ? it - m_ItemArray.begin() : -1;
-}
-
-uint32_t IFWL_ListBox::GetItemStyles(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem) {
- return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_dwStates : 0;
-}
-
-void IFWL_ListBox::GetItemRect(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- CFX_RectF& rtItem) {
- if (pItem)
- rtItem = static_cast<CFWL_ListItem*>(pItem)->m_rtItem;
-}
-
-void* IFWL_ListBox::GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
- return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
-}
-
-void IFWL_ListBox::SetItemStyles(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- uint32_t dwStyle) {
- if (pItem)
- static_cast<CFWL_ListItem*>(pItem)->m_dwStates = dwStyle;
-}
-
-void IFWL_ListBox::SetItemRect(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- const CFX_RectF& rtItem) {
- if (pItem)
- static_cast<CFWL_ListItem*>(pItem)->m_rtItem = rtItem;
-}
-
-CFX_DIBitmap* IFWL_ListBox::GetItemIcon(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem) {
- return static_cast<CFWL_ListItem*>(pItem)->m_pDIB;
-}
-
-void IFWL_ListBox::GetItemCheckRect(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- CFX_RectF& rtCheck) {
- rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox;
-}
-
-void IFWL_ListBox::SetItemCheckRect(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- const CFX_RectF& rtCheck) {
- static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck;
-}
-
-uint32_t IFWL_ListBox::GetItemCheckState(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem) {
- return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState;
-}
-
-void IFWL_ListBox::SetItemCheckState(IFWL_Widget* pWidget,
- CFWL_ListItem* pItem,
- uint32_t dwCheckState) {
- static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState;
-}
-
-CFWL_ListItem* IFWL_ListBox::AddString(const CFX_WideStringC& wsAdd,
- bool bSelect) {
- auto pItem = pdfium::MakeUnique<CFWL_ListItem>();
- pItem->m_dwStates = 0;
- pItem->m_wsText = wsAdd;
- pItem->m_dwStates = bSelect ? FWL_ITEMSTATE_LTB_Selected : 0;
- m_ItemArray.push_back(std::move(pItem));
- return m_ItemArray.back().get();
-}
-
-bool IFWL_ListBox::RemoveAt(int32_t iIndex) {
- if (iIndex < 0 || static_cast<size_t>(iIndex) >= m_ItemArray.size())
- return false;
-
- m_ItemArray.erase(m_ItemArray.begin() + iIndex);
- return true;
-}
-
-bool IFWL_ListBox::DeleteString(CFWL_ListItem* pItem) {
- int32_t nIndex = GetItemIndex(this, pItem);
- if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size())
- return false;
-
- int32_t iSel = nIndex + 1;
- if (iSel >= CountItems(this))
- iSel = nIndex - 1;
- if (iSel >= 0) {
- CFWL_ListItem* pSel = static_cast<CFWL_ListItem*>(GetItem(this, iSel));
- pSel->m_dwStates |= FWL_ITEMSTATE_LTB_Selected;
- }
- m_ItemArray.erase(m_ItemArray.begin() + nIndex);
- return true;
-}
-
-void IFWL_ListBox::DeleteAll() {
- m_ItemArray.clear();
-}
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