// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fwl/basewidget/fwl_listboximp.h"
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#include "xfa/fde/tto/fde_textout.h"
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#include "xfa/fwl/basewidget/fwl_comboboximp.h"
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#include "xfa/fwl/basewidget/fwl_scrollbarimp.h"
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#include "xfa/fwl/core/cfwl_message.h"
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#include "xfa/fwl/core/cfwl_themebackground.h"
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#include "xfa/fwl/core/cfwl_themepart.h"
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#include "xfa/fwl/core/cfwl_themetext.h"
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#include "xfa/fwl/core/fwl_noteimp.h"
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#include "xfa/fwl/core/fwl_widgetimp.h"
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#include "xfa/fwl/core/ifwl_themeprovider.h"
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namespace {
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const int kItemTextMargin = 2;
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} // namespace
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// static
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IFWL_ListBox* IFWL_ListBox::Create(const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter) {
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IFWL_ListBox* pListBox = new IFWL_ListBox;
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CFWL_ListBoxImp* pListBoxImpl = new CFWL_ListBoxImp(properties, pOuter);
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pListBox->SetImpl(pListBoxImpl);
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pListBoxImpl->SetInterface(pListBox);
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return pListBox;
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}
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// static
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IFWL_ListBox* IFWL_ListBox::CreateComboList(
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const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter) {
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IFWL_ListBox* pListBox = new IFWL_ListBox;
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CFWL_ListBoxImp* pComboListImpl = new CFWL_ComboListImp(properties, pOuter);
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pListBox->SetImpl(pComboListImpl);
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pComboListImpl->SetInterface(pListBox);
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return pListBox;
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}
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IFWL_ListBox::IFWL_ListBox() {}
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int32_t IFWL_ListBox::CountSelItems() {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->CountSelItems();
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}
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IFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->GetSelItem(nIndexSel);
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}
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int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->GetSelIndex(nIndex);
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}
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FWL_Error IFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, FX_BOOL bSelect) {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->SetSelItem(pItem, bSelect);
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}
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FWL_Error IFWL_ListBox::GetItemText(IFWL_ListItem* pItem,
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CFX_WideString& wsText) {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->GetItemText(pItem, wsText);
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}
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FWL_Error IFWL_ListBox::GetScrollPos(FX_FLOAT& fPos, FX_BOOL bVert) {
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return static_cast<CFWL_ListBoxImp*>(GetImpl())->GetScrollPos(fPos, bVert);
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}
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CFWL_ListBoxImp::CFWL_ListBoxImp(const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter)
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: CFWL_WidgetImp(properties, pOuter),
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m_dwTTOStyles(0),
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m_iTTOAligns(0),
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m_hAnchor(nullptr),
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m_fScorllBarWidth(0),
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m_bLButtonDown(FALSE),
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m_pScrollBarTP(nullptr) {
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m_rtClient.Reset();
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m_rtConent.Reset();
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m_rtStatic.Reset();
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}
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CFWL_ListBoxImp::~CFWL_ListBoxImp() {}
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FWL_Error CFWL_ListBoxImp::GetClassName(CFX_WideString& wsClass) const {
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wsClass = FWL_CLASS_ListBox;
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return FWL_Error::Succeeded;
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}
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FWL_Type CFWL_ListBoxImp::GetClassID() const {
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return FWL_Type::ListBox;
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}
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FWL_Error CFWL_ListBoxImp::Initialize() {
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if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
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return FWL_Error::Indefinite;
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m_pDelegate = new CFWL_ListBoxImpDelegate(this);
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ListBoxImp::Finalize() {
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if (m_pVertScrollBar) {
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m_pVertScrollBar->Finalize();
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}
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if (m_pHorzScrollBar) {
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m_pHorzScrollBar->Finalize();
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}
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delete m_pDelegate;
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m_pDelegate = nullptr;
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return CFWL_WidgetImp::Finalize();
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}
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FWL_Error CFWL_ListBoxImp::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
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if (bAutoSize) {
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rect.Set(0, 0, 0, 0);
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if (!m_pProperties->m_pThemeProvider) {
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m_pProperties->m_pThemeProvider = GetAvailableTheme();
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}
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CFX_SizeF fs = CalcSize(TRUE);
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rect.Set(0, 0, fs.x, fs.y);
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CFWL_WidgetImp::GetWidgetRect(rect, TRUE);
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} else {
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rect = m_pProperties->m_rtWidget;
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}
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ListBoxImp::Update() {
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if (IsLocked()) {
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return FWL_Error::Indefinite;
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}
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if (!m_pProperties->m_pThemeProvider) {
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m_pProperties->m_pThemeProvider = GetAvailableTheme();
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}
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m_iTTOAligns = FDE_TTOALIGNMENT_Center;
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switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_AlignMask) {
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case FWL_STYLEEXT_LTB_LeftAlign: {
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m_iTTOAligns = FDE_TTOALIGNMENT_CenterLeft;
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break;
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}
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case FWL_STYLEEXT_LTB_RightAlign: {
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m_iTTOAligns = FDE_TTOALIGNMENT_CenterRight;
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break;
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}
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case FWL_STYLEEXT_LTB_CenterAlign:
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default: { m_iTTOAligns = FDE_TTOALIGNMENT_Center; }
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}
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if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading) {
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m_dwTTOStyles |= FDE_TTOSTYLE_RTL;
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}
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m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine;
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m_fScorllBarWidth = GetScrollWidth();
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CalcSize();
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return FWL_Error::Succeeded;
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}
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FWL_WidgetHit CFWL_ListBoxImp::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
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if (IsShowScrollBar(FALSE)) {
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CFX_RectF rect;
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m_pHorzScrollBar->GetWidgetRect(rect);
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if (rect.Contains(fx, fy))
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return FWL_WidgetHit::HScrollBar;
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}
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if (IsShowScrollBar(TRUE)) {
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CFX_RectF rect;
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m_pVertScrollBar->GetWidgetRect(rect);
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if (rect.Contains(fx, fy))
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return FWL_WidgetHit::VScrollBar;
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}
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if (m_rtClient.Contains(fx, fy))
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return FWL_WidgetHit::Client;
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return FWL_WidgetHit::Unknown;
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}
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FWL_Error CFWL_ListBoxImp::DrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix) {
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if (!pGraphics)
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return FWL_Error::Indefinite;
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if (!m_pProperties->m_pThemeProvider)
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return FWL_Error::Indefinite;
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IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
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pGraphics->SaveGraphState();
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if (HasBorder()) {
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DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
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}
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if (HasEdge()) {
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DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
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}
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CFX_RectF rtClip(m_rtConent);
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if (IsShowScrollBar(FALSE)) {
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rtClip.height -= m_fScorllBarWidth;
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}
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if (IsShowScrollBar(TRUE)) {
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rtClip.width -= m_fScorllBarWidth;
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}
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if (pMatrix) {
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pMatrix->TransformRect(rtClip);
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}
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pGraphics->SetClipRect(rtClip);
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if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_NoBackground) == 0) {
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DrawBkground(pGraphics, pTheme, pMatrix);
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}
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DrawItems(pGraphics, pTheme, pMatrix);
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pGraphics->RestoreGraphState();
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ListBoxImp::SetThemeProvider(
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IFWL_ThemeProvider* pThemeProvider) {
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if (!pThemeProvider)
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return FWL_Error::Indefinite;
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if (!pThemeProvider->IsValidWidget(m_pInterface)) {
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m_pScrollBarTP = pThemeProvider;
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return FWL_Error::Succeeded;
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}
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m_pProperties->m_pThemeProvider = pThemeProvider;
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return FWL_Error::Succeeded;
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}
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int32_t CFWL_ListBoxImp::CountSelItems() {
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if (!m_pProperties->m_pDataProvider)
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return 0;
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int32_t iRet = 0;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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if (!pItem) {
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continue;
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}
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uint32_t dwStyle = pData->GetItemStyles(m_pInterface, pItem);
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if (dwStyle & FWL_ITEMSTATE_LTB_Selected) {
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iRet++;
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}
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}
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return iRet;
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}
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IFWL_ListItem* CFWL_ListBoxImp::GetSelItem(int32_t nIndexSel) {
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if (!m_pProperties->m_pDataProvider)
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return nullptr;
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int32_t index = 0;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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if (!pItem) {
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return nullptr;
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}
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uint32_t dwStyle = pData->GetItemStyles(m_pInterface, pItem);
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if (dwStyle & FWL_ITEMSTATE_LTB_Selected) {
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if (index == nIndexSel) {
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return pItem;
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} else {
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index++;
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}
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}
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}
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return nullptr;
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}
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int32_t CFWL_ListBoxImp::GetSelIndex(int32_t nIndex) {
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if (!m_pProperties->m_pDataProvider)
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return -1;
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int32_t index = 0;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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if (!pItem) {
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return -1;
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}
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uint32_t dwStyle = pData->GetItemStyles(m_pInterface, pItem);
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if (dwStyle & FWL_ITEMSTATE_LTB_Selected) {
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if (index == nIndex) {
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return i;
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} else {
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index++;
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}
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}
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}
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return -1;
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}
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FWL_Error CFWL_ListBoxImp::SetSelItem(IFWL_ListItem* pItem, FX_BOOL bSelect) {
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if (!m_pProperties->m_pDataProvider)
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return FWL_Error::Indefinite;
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if (!pItem) {
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if (bSelect) {
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SelectAll();
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} else {
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ClearSelection();
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SetFocusItem(nullptr);
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}
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return FWL_Error::Indefinite;
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}
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if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection) {
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SetSelectionDirect(pItem, bSelect);
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} else {
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SetSelection(pItem, pItem, bSelect);
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}
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ListBoxImp::GetItemText(IFWL_ListItem* pItem,
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CFX_WideString& wsText) {
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if (!m_pProperties->m_pDataProvider)
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return FWL_Error::Indefinite;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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if (!pItem)
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return FWL_Error::Indefinite;
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pData->GetItemText(m_pInterface, pItem, wsText);
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ListBoxImp::GetScrollPos(FX_FLOAT& fPos, FX_BOOL bVert) {
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if ((bVert && IsShowScrollBar(TRUE)) || (!bVert && IsShowScrollBar(FALSE))) {
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IFWL_ScrollBar* pScrollBar =
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bVert ? m_pVertScrollBar.get() : m_pHorzScrollBar.get();
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fPos = pScrollBar->GetPos();
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return FWL_Error::Succeeded;
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}
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return FWL_Error::Indefinite;
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}
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IFWL_ListItem* CFWL_ListBoxImp::GetItem(IFWL_ListItem* pItem,
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uint32_t dwKeyCode) {
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IFWL_ListItem* hRet = nullptr;
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switch (dwKeyCode) {
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case FWL_VKEY_Up:
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case FWL_VKEY_Down:
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case FWL_VKEY_Home:
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case FWL_VKEY_End: {
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const bool bUp = dwKeyCode == FWL_VKEY_Up;
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const bool bDown = dwKeyCode == FWL_VKEY_Down;
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const bool bHome = dwKeyCode == FWL_VKEY_Home;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iDstItem = -1;
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if (bUp || bDown) {
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int32_t index = pData->GetItemIndex(m_pInterface, pItem);
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iDstItem = dwKeyCode == FWL_VKEY_Up ? index - 1 : index + 1;
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} else if (bHome) {
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iDstItem = 0;
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} else {
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int32_t iCount = pData->CountItems(m_pInterface);
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iDstItem = iCount - 1;
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}
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hRet = pData->GetItem(m_pInterface, iDstItem);
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break;
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}
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default: {}
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}
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return hRet;
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}
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void CFWL_ListBoxImp::SetSelection(IFWL_ListItem* hStart,
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IFWL_ListItem* hEnd,
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FX_BOOL bSelected) {
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iStart = pData->GetItemIndex(m_pInterface, hStart);
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int32_t iEnd = pData->GetItemIndex(m_pInterface, hEnd);
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if (iStart > iEnd) {
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int32_t iTemp = iStart;
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iStart = iEnd;
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iEnd = iTemp;
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}
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if (bSelected) {
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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SetSelectionDirect(pItem, FALSE);
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}
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}
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for (; iStart <= iEnd; iStart++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, iStart);
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SetSelectionDirect(pItem, bSelected);
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}
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}
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void CFWL_ListBoxImp::SetSelectionDirect(IFWL_ListItem* pItem,
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FX_BOOL bSelect) {
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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uint32_t dwOldStyle = pData->GetItemStyles(m_pInterface, pItem);
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bSelect ? dwOldStyle |= FWL_ITEMSTATE_LTB_Selected
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: dwOldStyle &= ~FWL_ITEMSTATE_LTB_Selected;
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pData->SetItemStyles(m_pInterface, pItem, dwOldStyle);
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}
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FX_BOOL CFWL_ListBoxImp::IsItemSelected(IFWL_ListItem* pItem) {
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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uint32_t dwState = pData->GetItemStyles(m_pInterface, pItem);
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return (dwState & FWL_ITEMSTATE_LTB_Selected) != 0;
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}
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void CFWL_ListBoxImp::ClearSelection() {
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FX_BOOL bMulti =
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m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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uint32_t dwState = pData->GetItemStyles(m_pInterface, pItem);
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if (!(dwState & FWL_ITEMSTATE_LTB_Selected))
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continue;
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SetSelectionDirect(pItem, FALSE);
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if (!bMulti)
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return;
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}
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}
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void CFWL_ListBoxImp::SelectAll() {
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FX_BOOL bMulti =
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m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_MultiSelection;
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if (!bMulti) {
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return;
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}
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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if (iCount > 0) {
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IFWL_ListItem* pItemStart = pData->GetItem(m_pInterface, 0);
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IFWL_ListItem* pItemEnd = pData->GetItem(m_pInterface, iCount - 1);
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SetSelection(pItemStart, pItemEnd, FALSE);
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}
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}
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IFWL_ListItem* CFWL_ListBoxImp::GetFocusedItem() {
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t iCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < iCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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if (!pItem)
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return nullptr;
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if (pData->GetItemStyles(m_pInterface, pItem) & FWL_ITEMSTATE_LTB_Focused) {
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return pItem;
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}
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}
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return nullptr;
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}
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void CFWL_ListBoxImp::SetFocusItem(IFWL_ListItem* pItem) {
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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IFWL_ListItem* hFocus = GetFocusedItem();
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if (pItem != hFocus) {
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if (hFocus) {
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uint32_t dwStyle = pData->GetItemStyles(m_pInterface, hFocus);
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dwStyle &= ~FWL_ITEMSTATE_LTB_Focused;
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pData->SetItemStyles(m_pInterface, hFocus, dwStyle);
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}
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if (pItem) {
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uint32_t dwStyle = pData->GetItemStyles(m_pInterface, pItem);
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dwStyle |= FWL_ITEMSTATE_LTB_Focused;
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pData->SetItemStyles(m_pInterface, pItem, dwStyle);
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}
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}
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}
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IFWL_ListItem* CFWL_ListBoxImp::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
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fx -= m_rtConent.left, fy -= m_rtConent.top;
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FX_FLOAT fPosX = 0.0f;
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if (m_pHorzScrollBar) {
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fPosX = m_pHorzScrollBar->GetPos();
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}
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FX_FLOAT fPosY = 0.0;
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if (m_pVertScrollBar) {
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fPosY = m_pVertScrollBar->GetPos();
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}
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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int32_t nCount = pData->CountItems(m_pInterface);
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for (int32_t i = 0; i < nCount; i++) {
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IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
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if (!pItem) {
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continue;
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}
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CFX_RectF rtItem;
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pData->GetItemRect(m_pInterface, pItem, rtItem);
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rtItem.Offset(-fPosX, -fPosY);
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if (rtItem.Contains(fx, fy)) {
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return pItem;
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}
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}
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return nullptr;
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}
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FX_BOOL CFWL_ListBoxImp::GetItemCheckRect(IFWL_ListItem* pItem,
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CFX_RectF& rtCheck) {
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if (!m_pProperties->m_pDataProvider)
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return FALSE;
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if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
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return FALSE;
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}
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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pData->GetItemCheckRect(m_pInterface, pItem, rtCheck);
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return TRUE;
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}
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FX_BOOL CFWL_ListBoxImp::GetItemChecked(IFWL_ListItem* pItem) {
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if (!m_pProperties->m_pDataProvider)
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return FALSE;
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if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
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return FALSE;
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}
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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return (pData->GetItemCheckState(m_pInterface, pItem) &
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FWL_ITEMSTATE_LTB_Checked);
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}
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FX_BOOL CFWL_ListBoxImp::SetItemChecked(IFWL_ListItem* pItem,
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FX_BOOL bChecked) {
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if (!m_pProperties->m_pDataProvider)
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return FALSE;
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if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
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return FALSE;
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}
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
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pData->SetItemCheckState(m_pInterface, pItem,
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bChecked ? FWL_ITEMSTATE_LTB_Checked : 0);
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return TRUE;
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}
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FX_BOOL CFWL_ListBoxImp::ScrollToVisible(IFWL_ListItem* pItem) {
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if (!m_pVertScrollBar)
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return FALSE;
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CFX_RectF rtItem;
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IFWL_ListBoxDP* pData =
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static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
|
pData->GetItemRect(m_pInterface, 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 CFWL_ListBoxImp::DrawBkground(CFX_Graphics* pGraphics,
|
IFWL_ThemeProvider* pTheme,
|
const CFX_Matrix* pMatrix) {
|
if (!pGraphics)
|
return;
|
if (!pTheme)
|
return;
|
CFWL_ThemeBackground param;
|
param.m_pWidget = m_pInterface;
|
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 CFWL_ListBoxImp::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(m_pInterface);
|
for (int32_t i = 0; i < iCount; i++) {
|
IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
|
if (!pItem) {
|
continue;
|
}
|
CFX_RectF rtItem;
|
pData->GetItemRect(m_pInterface, 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 = m_pInterface;
|
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 CFWL_ListBoxImp::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(m_pInterface, 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 = m_pInterface;
|
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(m_pInterface, pItem);
|
rtDIB.Set(rtItem.left, rtItem.top, rtItem.height, rtItem.height);
|
if (pDib) {
|
CFWL_ThemeBackground param;
|
param.m_pWidget = m_pInterface;
|
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(m_pInterface, pItem, rtCheck);
|
CFWL_ThemeBackground param;
|
param.m_pWidget = m_pInterface;
|
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(m_pInterface, 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 = m_pInterface;
|
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 CFWL_ListBoxImp::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(m_pInterface)) {
|
IFWL_ListBoxDP* pData =
|
static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
|
int32_t iCount = pData->CountItems(m_pInterface);
|
for (int32_t i = 0; i < iCount; i++) {
|
IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
|
CFWL_ThemePart itemPart;
|
itemPart.m_pWidget = m_pInterface;
|
itemPart.m_iPart = CFWL_Part::ListItem;
|
itemPart.m_pData = m_pProperties->m_pDataProvider;
|
itemPart.m_bMaximize = i > 0;
|
CFX_RectF r;
|
m_pProperties->m_pThemeProvider->GetPartRect(&itemPart, r);
|
if (!bAutoSize) {
|
CFX_RectF rtItem;
|
rtItem.Set(m_rtClient.left, m_rtClient.top + fs.y, r.width, r.height);
|
IFWL_ListBoxDP* pBox =
|
static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
|
pBox->SetItemRect(m_pInterface, pItem, rtItem);
|
}
|
fs.y += r.height;
|
if (fs.x < r.width) {
|
fs.x = r.width;
|
fWidth = r.width;
|
}
|
}
|
} 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(m_pInterface);
|
for (int32_t i = 0; i < iCount; i++) {
|
IFWL_ListItem* htem = pData->GetItem(m_pInterface, 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 CFWL_ListBoxImp::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(m_pInterface, pItem, rtItem);
|
}
|
size.x = fWidth;
|
size.y += fItemHeight;
|
}
|
}
|
FX_FLOAT CFWL_ListBoxImp::GetMaxTextWidth() {
|
FX_FLOAT fRet = 0.0f;
|
IFWL_ListBoxDP* pData =
|
static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
|
int32_t iCount = pData->CountItems(m_pInterface);
|
for (int32_t i = 0; i < iCount; i++) {
|
IFWL_ListItem* pItem = pData->GetItem(m_pInterface, i);
|
if (!pItem) {
|
continue;
|
}
|
CFX_WideString wsText;
|
pData->GetItemText(m_pInterface, pItem, wsText);
|
CFX_SizeF sz = CalcTextSize(wsText, m_pProperties->m_pThemeProvider);
|
if (sz.x > fRet) {
|
fRet = sz.x;
|
}
|
}
|
return fRet;
|
}
|
FX_FLOAT CFWL_ListBoxImp::GetScrollWidth() {
|
FX_FLOAT* pfWidth = static_cast<FX_FLOAT*>(
|
GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
|
if (!pfWidth)
|
return 0;
|
return *pfWidth;
|
}
|
FX_FLOAT CFWL_ListBoxImp::GetItemHeigt() {
|
FX_FLOAT* pfFont =
|
static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::FontSize));
|
if (!pfFont)
|
return 20;
|
return *pfFont + 2 * kItemTextMargin;
|
}
|
void CFWL_ListBoxImp::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 = m_pInterface;
|
prop.m_pThemeProvider = m_pScrollBarTP;
|
IFWL_ScrollBar* pScrollBar = IFWL_ScrollBar::Create(prop, m_pInterface);
|
pScrollBar->Initialize();
|
(bVert ? &m_pVertScrollBar : &m_pHorzScrollBar)->reset(pScrollBar);
|
}
|
|
FX_BOOL CFWL_ListBoxImp::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 CFWL_ListBoxImp::ProcessSelChanged() {
|
CFWL_EvtLtbSelChanged selEvent;
|
selEvent.m_pSrcTarget = m_pInterface;
|
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(CFWL_ListBoxImp* 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: {}
|
}
|
}
|
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_pInterface;
|
m_pOwner->DispatchEvent(&ev);
|
}
|
