diff options
Diffstat (limited to 'xfa/fwl/core/ifwl_listbox.cpp')
| -rw-r--r-- | xfa/fwl/core/ifwl_listbox.cpp | 1218 |
1 files changed, 1218 insertions, 0 deletions
diff --git a/xfa/fwl/core/ifwl_listbox.cpp b/xfa/fwl/core/ifwl_listbox.cpp new file mode 100644 index 0000000000..a0a9eacd27 --- /dev/null +++ b/xfa/fwl/core/ifwl_listbox.cpp @@ -0,0 +1,1218 @@ +// 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 "xfa/fde/tto/fde_textout.h" +#include "xfa/fwl/core/cfwl_message.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_app.h" +#include "xfa/fwl/core/ifwl_themeprovider.h" + +namespace { + +const int kItemTextMargin = 2; + +} // namespace + +// static +IFWL_ListBox* IFWL_ListBox::Create(const CFWL_WidgetImpProperties& properties, + IFWL_Widget* pOuter) { + return new IFWL_ListBox(properties, pOuter); +} + +IFWL_ListBox::IFWL_ListBox(const CFWL_WidgetImpProperties& properties, + IFWL_Widget* pOuter) + : IFWL_Widget(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_Error IFWL_ListBox::GetClassName(CFX_WideString& wsClass) const { + wsClass = FWL_CLASS_ListBox; + return FWL_Error::Succeeded; +} + +FWL_Type IFWL_ListBox::GetClassID() const { + return FWL_Type::ListBox; +} + +FWL_Error IFWL_ListBox::Initialize() { + if (IFWL_Widget::Initialize() != FWL_Error::Succeeded) + return FWL_Error::Indefinite; + + m_pDelegate = new CFWL_ListBoxImpDelegate(this); + return FWL_Error::Succeeded; +} + +FWL_Error IFWL_ListBox::Finalize() { + if (m_pVertScrollBar) { + m_pVertScrollBar->Finalize(); + } + if (m_pHorzScrollBar) { + m_pHorzScrollBar->Finalize(); + } + delete m_pDelegate; + m_pDelegate = nullptr; + return IFWL_Widget::Finalize(); +} + +FWL_Error IFWL_ListBox::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) { + if (bAutoSize) { + 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); + } else { + rect = m_pProperties->m_rtWidget; + } + return FWL_Error::Succeeded; +} + +FWL_Error IFWL_ListBox::Update() { + if (IsLocked()) { + return FWL_Error::Indefinite; + } + if (!m_pProperties->m_pThemeProvider) { + m_pProperties->m_pThemeProvider = GetAvailableTheme(); + } + m_iTTOAligns = FDE_TTOALIGNMENT_Center; + 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; } + } + if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading) { + m_dwTTOStyles |= FDE_TTOSTYLE_RTL; + } + m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine; + m_fScorllBarWidth = GetScrollWidth(); + CalcSize(); + return FWL_Error::Succeeded; +} + +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; +} + +FWL_Error IFWL_ListBox::DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + if (!pGraphics) + return FWL_Error::Indefinite; + if (!m_pProperties->m_pThemeProvider) + return FWL_Error::Indefinite; + 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(); + return FWL_Error::Succeeded; +} + +FWL_Error IFWL_ListBox::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) { + if (!pThemeProvider) + return FWL_Error::Indefinite; + m_pProperties->m_pThemeProvider = pThemeProvider; + return FWL_Error::Succeeded; +} +int32_t IFWL_ListBox::CountSelItems() { + if (!m_pProperties->m_pDataProvider) + return 0; + int32_t iRet = 0; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + continue; + } + uint32_t dwStyle = pData->GetItemStyles(this, pItem); + if (dwStyle & FWL_ITEMSTATE_LTB_Selected) { + iRet++; + } + } + return iRet; +} + +IFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) { + if (!m_pProperties->m_pDataProvider) + return nullptr; + int32_t index = 0; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + return nullptr; + } + uint32_t dwStyle = pData->GetItemStyles(this, pItem); + if (dwStyle & FWL_ITEMSTATE_LTB_Selected) { + if (index == nIndexSel) { + return pItem; + } else { + index++; + } + } + } + return nullptr; +} + +int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) { + if (!m_pProperties->m_pDataProvider) + return -1; + int32_t index = 0; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + return -1; + } + uint32_t dwStyle = pData->GetItemStyles(this, pItem); + if (dwStyle & FWL_ITEMSTATE_LTB_Selected) { + if (index == nIndex) { + return i; + } else { + index++; + } + } + } + return -1; +} + +FWL_Error IFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, FX_BOOL bSelect) { + if (!m_pProperties->m_pDataProvider) + return FWL_Error::Indefinite; + if (!pItem) { + if (bSelect) { + SelectAll(); + } else { + ClearSelection(); + SetFocusItem(nullptr); + } + return FWL_Error::Indefinite; + } + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) { + SetSelectionDirect(pItem, bSelect); + } else { + SetSelection(pItem, pItem, bSelect); + } + return FWL_Error::Succeeded; +} + +FWL_Error IFWL_ListBox::GetItemText(IFWL_ListItem* pItem, + CFX_WideString& wsText) { + if (!m_pProperties->m_pDataProvider) + return FWL_Error::Indefinite; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + if (!pItem) + return FWL_Error::Indefinite; + pData->GetItemText(this, pItem, wsText); + return FWL_Error::Succeeded; +} + +FWL_Error IFWL_ListBox::GetScrollPos(FX_FLOAT& fPos, FX_BOOL bVert) { + if ((bVert && IsShowScrollBar(TRUE)) || (!bVert && IsShowScrollBar(FALSE))) { + IFWL_ScrollBar* pScrollBar = + bVert ? m_pVertScrollBar.get() : m_pHorzScrollBar.get(); + fPos = pScrollBar->GetPos(); + return FWL_Error::Succeeded; + } + return FWL_Error::Indefinite; +} + +IFWL_ListItem* IFWL_ListBox::GetItem(IFWL_ListItem* pItem, uint32_t dwKeyCode) { + IFWL_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; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iDstItem = -1; + if (bUp || bDown) { + int32_t index = pData->GetItemIndex(this, pItem); + iDstItem = dwKeyCode == FWL_VKEY_Up ? index - 1 : index + 1; + } else if (bHome) { + iDstItem = 0; + } else { + int32_t iCount = pData->CountItems(this); + iDstItem = iCount - 1; + } + hRet = pData->GetItem(this, iDstItem); + break; + } + default: {} + } + return hRet; +} + +void IFWL_ListBox::SetSelection(IFWL_ListItem* hStart, + IFWL_ListItem* hEnd, + FX_BOOL bSelected) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iStart = pData->GetItemIndex(this, hStart); + int32_t iEnd = pData->GetItemIndex(this, hEnd); + if (iStart > iEnd) { + int32_t iTemp = iStart; + iStart = iEnd; + iEnd = iTemp; + } + if (bSelected) { + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + SetSelectionDirect(pItem, FALSE); + } + } + for (; iStart <= iEnd; iStart++) { + IFWL_ListItem* pItem = pData->GetItem(this, iStart); + SetSelectionDirect(pItem, bSelected); + } +} + +void IFWL_ListBox::SetSelectionDirect(IFWL_ListItem* pItem, FX_BOOL bSelect) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + uint32_t dwOldStyle = pData->GetItemStyles(this, pItem); + bSelect ? dwOldStyle |= FWL_ITEMSTATE_LTB_Selected + : dwOldStyle &= ~FWL_ITEMSTATE_LTB_Selected; + pData->SetItemStyles(this, pItem, dwOldStyle); +} + +FX_BOOL IFWL_ListBox::IsItemSelected(IFWL_ListItem* pItem) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + uint32_t dwState = pData->GetItemStyles(this, pItem); + return (dwState & FWL_ITEMSTATE_LTB_Selected) != 0; +} + +void IFWL_ListBox::ClearSelection() { + FX_BOOL bMulti = + m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + uint32_t dwState = pData->GetItemStyles(this, pItem); + if (!(dwState & FWL_ITEMSTATE_LTB_Selected)) + continue; + SetSelectionDirect(pItem, FALSE); + if (!bMulti) + return; + } +} + +void IFWL_ListBox::SelectAll() { + FX_BOOL bMulti = + m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection; + if (!bMulti) { + return; + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + if (iCount > 0) { + IFWL_ListItem* pItemStart = pData->GetItem(this, 0); + IFWL_ListItem* pItemEnd = pData->GetItem(this, iCount - 1); + SetSelection(pItemStart, pItemEnd, FALSE); + } +} + +IFWL_ListItem* IFWL_ListBox::GetFocusedItem() { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) + return nullptr; + if (pData->GetItemStyles(this, pItem) & FWL_ITEMSTATE_LTB_Focused) { + return pItem; + } + } + return nullptr; +} + +void IFWL_ListBox::SetFocusItem(IFWL_ListItem* pItem) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + IFWL_ListItem* hFocus = GetFocusedItem(); + if (pItem != hFocus) { + if (hFocus) { + uint32_t dwStyle = pData->GetItemStyles(this, hFocus); + dwStyle &= ~FWL_ITEMSTATE_LTB_Focused; + pData->SetItemStyles(this, hFocus, dwStyle); + } + if (pItem) { + uint32_t dwStyle = pData->GetItemStyles(this, pItem); + dwStyle |= FWL_ITEMSTATE_LTB_Focused; + pData->SetItemStyles(this, pItem, dwStyle); + } + } +} + +IFWL_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(); + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t nCount = pData->CountItems(this); + for (int32_t i = 0; i < nCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + continue; + } + CFX_RectF rtItem; + pData->GetItemRect(this, pItem, rtItem); + rtItem.Offset(-fPosX, -fPosY); + if (rtItem.Contains(fx, fy)) { + return pItem; + } + } + return nullptr; +} + +FX_BOOL IFWL_ListBox::GetItemCheckRect(IFWL_ListItem* pItem, + CFX_RectF& rtCheck) { + if (!m_pProperties->m_pDataProvider) + return FALSE; + if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) { + return FALSE; + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + pData->GetItemCheckRect(this, pItem, rtCheck); + return TRUE; +} + +FX_BOOL IFWL_ListBox::GetItemChecked(IFWL_ListItem* pItem) { + if (!m_pProperties->m_pDataProvider) + return FALSE; + if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) { + return FALSE; + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + return (pData->GetItemCheckState(this, pItem) & FWL_ITEMSTATE_LTB_Checked); +} + +FX_BOOL IFWL_ListBox::SetItemChecked(IFWL_ListItem* pItem, FX_BOOL bChecked) { + if (!m_pProperties->m_pDataProvider) + return FALSE; + if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) { + return FALSE; + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + pData->SetItemCheckState(this, pItem, + bChecked ? FWL_ITEMSTATE_LTB_Checked : 0); + return TRUE; +} + +FX_BOOL IFWL_ListBox::ScrollToVisible(IFWL_ListItem* pItem) { + if (!m_pVertScrollBar) + return FALSE; + CFX_RectF rtItem; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + pData->GetItemRect(this, pItem, rtItem); + FX_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(¶m); +} + +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; + } + FX_BOOL bMultiCol = + m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + continue; + } + CFX_RectF rtItem; + pData->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) { + CFWL_EvtLtbDrawItem ev; + ev.m_pSrcTarget = this; + ev.m_pGraphics = pGraphics; + ev.m_matrix = *pMatrix; + ev.m_index = i; + ev.m_rect = rtItem; + DispatchEvent(&ev); + } else { + DrawItem(pGraphics, pTheme, pItem, i, rtItem, pMatrix); + } + } +} + +void IFWL_ListBox::DrawItem(CFX_Graphics* pGraphics, + IFWL_ThemeProvider* pTheme, + IFWL_ListItem* pItem, + int32_t Index, + const CFX_RectF& rtItem, + const CFX_Matrix* pMatrix) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + uint32_t dwItemStyles = pData->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 param; + param.m_pWidget = this; + param.m_iPart = CFWL_Part::ListItem; + param.m_dwStates = dwPartStates; + param.m_pGraphics = pGraphics; + param.m_matrix.Concat(*pMatrix); + param.m_rtPart = rtItem; + param.m_bMaximize = true; + CFX_RectF rtFocus(rtItem); + param.m_pData = &rtFocus; + if (m_pVertScrollBar && !m_pHorzScrollBar && + (dwPartStates & CFWL_PartState_Focused)) { + param.m_rtPart.left += 1; + param.m_rtPart.width -= (m_fScorllBarWidth + 1); + rtFocus.Deflate(0.5, 0.5, 1 + m_fScorllBarWidth, 1); + } + pTheme->DrawBackground(¶m); + } + { + FX_BOOL bHasIcon = GetStylesEx() & FWL_STYLEEXT_LTB_Icon; + if (bHasIcon) { + CFX_RectF rtDIB; + CFX_DIBitmap* pDib = pData->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(¶m); + } + } + FX_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); + pData->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(¶m); + } + CFX_WideString wsText; + pData->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(FX_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 = 0; + if (m_pProperties->m_pThemeProvider->IsCustomizedLayout(this)) { + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!bAutoSize) { + CFX_RectF rtItem; + rtItem.Set(m_rtClient.left, m_rtClient.top + fs.y, 0, 0); + IFWL_ListBoxDP* pBox = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + pBox->SetItemRect(this, pItem, rtItem); + } + if (fs.x < 0) { + fs.x = 0; + fWidth = 0; + } + } + } else { + fWidth = GetMaxTextWidth(); + fWidth += 2 * kItemTextMargin; + if (!bAutoSize) { + FX_FLOAT fActualWidth = + m_rtClient.width - rtUIMargin.left - rtUIMargin.width; + if (fWidth < fActualWidth) { + fWidth = fActualWidth; + } + } + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + m_fItemHeight = GetItemHeigt(); + FX_BOOL bHasIcon; + bHasIcon = GetStylesEx() & FWL_STYLEEXT_LTB_Icon; + if (bHasIcon) { + fWidth += m_fItemHeight; + } + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* htem = pData->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; + FX_BOOL bShowVertScr = + (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_ShowScrollBarAlaways) && + (m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll); + FX_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; + if (szRange.y < m_fItemHeight) { + 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 = m_pVertScrollBar->GetPos(); + if (fPos < 0) { + fPos = 0; + } + if (fPos > szRange.y) { + fPos = 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 = m_pHorzScrollBar->GetPos(); + if (fPos < 0) { + fPos = 0; + } + if (fPos > szRange.y) { + fPos = 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, + IFWL_ListItem* pItem, + FX_FLOAT fWidth, + FX_FLOAT fItemHeight, + FX_BOOL bAutoSize) { + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiColumn) { + } else { + if (!bAutoSize) { + CFX_RectF rtItem; + rtItem.Set(0, size.y, fWidth, fItemHeight); + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + pData->SetItemRect(this, pItem, rtItem); + } + size.x = fWidth; + size.y += fItemHeight; + } +} + +FX_FLOAT IFWL_ListBox::GetMaxTextWidth() { + FX_FLOAT fRet = 0.0f; + IFWL_ListBoxDP* pData = + static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider); + int32_t iCount = pData->CountItems(this); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* pItem = pData->GetItem(this, i); + if (!pItem) { + continue; + } + CFX_WideString wsText; + pData->GetItemText(this, pItem, wsText); + CFX_SizeF sz = CalcTextSize(wsText, m_pProperties->m_pThemeProvider); + if (sz.x > fRet) { + 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::GetItemHeigt() { + FX_FLOAT* pfFont = + static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::FontSize)); + if (!pfFont) + return 20; + return *pfFont + 2 * kItemTextMargin; +} + +void IFWL_ListBox::InitScrollBar(FX_BOOL bVert) { + if ((bVert && m_pVertScrollBar) || (!bVert && m_pHorzScrollBar)) { + return; + } + CFWL_WidgetImpProperties prop; + 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; + IFWL_ScrollBar* pScrollBar = IFWL_ScrollBar::Create(prop, this); + pScrollBar->Initialize(); + (bVert ? &m_pVertScrollBar : &m_pHorzScrollBar)->reset(pScrollBar); +} + +FX_BOOL IFWL_ListBox::IsShowScrollBar(FX_BOOL bVert) { + IFWL_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::ProcessSelChanged() { + CFWL_EvtLtbSelChanged selEvent; + selEvent.m_pSrcTarget = this; + CFX_Int32Array arrSels; + int32_t iCount = CountSelItems(); + for (int32_t i = 0; i < iCount; i++) { + IFWL_ListItem* item = GetSelItem(i); + if (!item) { + continue; + } + selEvent.iarraySels.Add(i); + } + DispatchEvent(&selEvent); +} + +CFWL_ListBoxImpDelegate::CFWL_ListBoxImpDelegate(IFWL_ListBox* pOwner) + : m_pOwner(pOwner) {} + +void CFWL_ListBoxImpDelegate::OnProcessMessage(CFWL_Message* pMessage) { + if (!pMessage) + return; + if (!m_pOwner->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; } + } + CFWL_WidgetImpDelegate::OnProcessMessage(pMessage); +} + +void CFWL_ListBoxImpDelegate::OnProcessEvent(CFWL_Event* pEvent) { + if (!pEvent) + return; + if (pEvent->GetClassID() != CFWL_EventType::Scroll) + return; + + IFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget; + if ((pSrcTarget == m_pOwner->m_pVertScrollBar.get() && + m_pOwner->m_pVertScrollBar) || + (pSrcTarget == m_pOwner->m_pHorzScrollBar.get() && + m_pOwner->m_pHorzScrollBar)) { + CFWL_EvtScroll* pScrollEvent = static_cast<CFWL_EvtScroll*>(pEvent); + OnScroll(static_cast<IFWL_ScrollBar*>(pSrcTarget), + pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos); + } +} + +void CFWL_ListBoxImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + m_pOwner->DrawWidget(pGraphics, pMatrix); +} + +void CFWL_ListBoxImpDelegate::OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet) { + if (m_pOwner->GetStylesEx() & FWL_STYLEEXT_LTB_ShowScrollBarFocus) { + if (m_pOwner->m_pVertScrollBar) { + m_pOwner->m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet); + } + if (m_pOwner->m_pHorzScrollBar) { + m_pOwner->m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, !bSet); + } + } + if (bSet) { + m_pOwner->m_pProperties->m_dwStates |= (FWL_WGTSTATE_Focused); + } else { + m_pOwner->m_pProperties->m_dwStates &= ~(FWL_WGTSTATE_Focused); + } + m_pOwner->Repaint(&m_pOwner->m_rtClient); +} + +void CFWL_ListBoxImpDelegate::OnLButtonDown(CFWL_MsgMouse* pMsg) { + m_pOwner->m_bLButtonDown = TRUE; + if ((m_pOwner->m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) { + m_pOwner->SetFocus(TRUE); + } + IFWL_ListItem* pItem = m_pOwner->GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); + if (!pItem) { + return; + } + if (m_pOwner->m_pProperties->m_dwStyleExes & + FWL_STYLEEXT_LTB_MultiSelection) { + if (pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl) { + FX_BOOL bSelected = m_pOwner->IsItemSelected(pItem); + m_pOwner->SetSelectionDirect(pItem, !bSelected); + m_pOwner->m_hAnchor = pItem; + } else if (pMsg->m_dwFlags & FWL_KEYFLAG_Shift) { + if (m_pOwner->m_hAnchor) { + m_pOwner->SetSelection(m_pOwner->m_hAnchor, pItem, TRUE); + } else { + m_pOwner->SetSelectionDirect(pItem, TRUE); + } + } else { + m_pOwner->SetSelection(pItem, pItem, TRUE); + m_pOwner->m_hAnchor = pItem; + } + } else { + m_pOwner->SetSelection(pItem, pItem, TRUE); + } + if (m_pOwner->m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check) { + IFWL_ListItem* hSelectedItem = + m_pOwner->GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); + CFX_RectF rtCheck; + m_pOwner->GetItemCheckRect(hSelectedItem, rtCheck); + FX_BOOL bChecked = m_pOwner->GetItemChecked(pItem); + if (rtCheck.Contains(pMsg->m_fx, pMsg->m_fy)) { + if (bChecked) { + m_pOwner->SetItemChecked(pItem, FALSE); + } else { + m_pOwner->SetItemChecked(pItem, TRUE); + } + m_pOwner->Update(); + } + } + m_pOwner->SetFocusItem(pItem); + m_pOwner->ScrollToVisible(pItem); + m_pOwner->SetGrab(TRUE); + m_pOwner->ProcessSelChanged(); + m_pOwner->Repaint(&m_pOwner->m_rtClient); +} + +void CFWL_ListBoxImpDelegate::OnLButtonUp(CFWL_MsgMouse* pMsg) { + if (m_pOwner->m_bLButtonDown) { + m_pOwner->m_bLButtonDown = FALSE; + m_pOwner->SetGrab(FALSE); + DispatchSelChangedEv(); + } +} + +void CFWL_ListBoxImpDelegate::OnMouseWheel(CFWL_MsgMouseWheel* pMsg) { + if (!m_pOwner->IsShowScrollBar(TRUE)) { + return; + } + IFWL_WidgetDelegate* pDelegate = + m_pOwner->m_pVertScrollBar->SetDelegate(nullptr); + pDelegate->OnProcessMessage(pMsg); +} + +void CFWL_ListBoxImpDelegate::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: { + IFWL_ListItem* pItem = m_pOwner->GetFocusedItem(); + pItem = m_pOwner->GetItem(pItem, dwKeyCode); + FX_BOOL bShift = pMsg->m_dwFlags & FWL_KEYFLAG_Shift; + FX_BOOL bCtrl = pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl; + OnVK(pItem, bShift, bCtrl); + DispatchSelChangedEv(); + m_pOwner->ProcessSelChanged(); + break; + } + default: + break; + } +} + +void CFWL_ListBoxImpDelegate::OnVK(IFWL_ListItem* pItem, + FX_BOOL bShift, + FX_BOOL bCtrl) { + if (!pItem) { + return; + } + if (m_pOwner->m_pProperties->m_dwStyleExes & + FWL_STYLEEXT_LTB_MultiSelection) { + if (bCtrl) { + } else if (bShift) { + if (m_pOwner->m_hAnchor) { + m_pOwner->SetSelection(m_pOwner->m_hAnchor, pItem, TRUE); + } else { + m_pOwner->SetSelectionDirect(pItem, TRUE); + } + } else { + m_pOwner->SetSelection(pItem, pItem, TRUE); + m_pOwner->m_hAnchor = pItem; + } + } else { + m_pOwner->SetSelection(pItem, pItem, TRUE); + } + m_pOwner->SetFocusItem(pItem); + m_pOwner->ScrollToVisible(pItem); + { + CFX_RectF rtInvalidate; + rtInvalidate.Set(0, 0, m_pOwner->m_pProperties->m_rtWidget.width, + m_pOwner->m_pProperties->m_rtWidget.height); + m_pOwner->Repaint(&rtInvalidate); + } +} + +FX_BOOL CFWL_ListBoxImpDelegate::OnScroll(IFWL_ScrollBar* pScrollBar, + uint32_t 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: + break; + case FWL_SCBCODE_EndScroll: + return FALSE; + } + if (iCurPos != fPos) { + pScrollBar->SetPos(fPos); + pScrollBar->SetTrackPos(fPos); + m_pOwner->Repaint(&m_pOwner->m_rtClient); + } + return TRUE; +} + +void CFWL_ListBoxImpDelegate::DispatchSelChangedEv() { + CFWL_EvtLtbSelChanged ev; + ev.m_pSrcTarget = m_pOwner; + m_pOwner->DispatchEvent(&ev); +} |