362 lines
10 KiB
C++
362 lines
10 KiB
C++
// Copyright 2014 The PDFium Authors
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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 "fpdfsdk/pwl/cpwl_list_box.h"
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#include <sstream>
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#include <utility>
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#include "core/fxge/cfx_renderdevice.h"
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#include "fpdfsdk/pwl/cpwl_edit.h"
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#include "fpdfsdk/pwl/cpwl_edit_impl.h"
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#include "fpdfsdk/pwl/cpwl_scroll_bar.h"
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#include "fpdfsdk/pwl/ipwl_fillernotify.h"
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#include "public/fpdf_fwlevent.h"
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#include "third_party/base/numerics/safe_conversions.h"
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CPWL_ListBox::CPWL_ListBox(
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const CreateParams& cp,
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std::unique_ptr<IPWL_FillerNotify::PerWindowData> pAttachedData)
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: CPWL_Wnd(cp, std::move(pAttachedData)),
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m_pListCtrl(std::make_unique<CPWL_ListCtrl>()) {}
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CPWL_ListBox::~CPWL_ListBox() = default;
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void CPWL_ListBox::OnCreated() {
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m_pListCtrl->SetFontMap(GetFontMap());
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m_pListCtrl->SetNotify(this);
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SetHoverSel(HasFlag(PLBS_HOVERSEL));
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m_pListCtrl->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL));
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m_pListCtrl->SetFontSize(GetCreationParams()->fFontSize);
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m_bHoverSel = HasFlag(PLBS_HOVERSEL);
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}
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void CPWL_ListBox::OnDestroy() {
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// Make sure the notifier is removed from the list as we are about to
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// destroy the notifier and don't want to leave a dangling pointer.
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m_pListCtrl->SetNotify(nullptr);
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}
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void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
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const CFX_Matrix& mtUser2Device) {
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CPWL_Wnd::DrawThisAppearance(pDevice, mtUser2Device);
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CFX_FloatRect rcPlate = m_pListCtrl->GetPlateRect();
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CFX_FloatRect rcList = GetListRect();
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CFX_FloatRect rcClient = GetClientRect();
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for (int32_t i = 0, sz = m_pListCtrl->GetCount(); i < sz; i++) {
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CFX_FloatRect rcItem = m_pListCtrl->GetItemRect(i);
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if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom)
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continue;
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CFX_PointF ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
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if (CPWL_EditImpl* pEdit = m_pListCtrl->GetItemEdit(i)) {
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CFX_FloatRect rcContent = pEdit->GetContentRect();
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rcItem.Intersect(rcContent.Width() > rcClient.Width() ? rcList
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: rcClient);
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}
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IPWL_FillerNotify* pSysHandler = GetFillerNotify();
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if (m_pListCtrl->IsItemSelected(i)) {
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if (pSysHandler->IsSelectionImplemented()) {
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m_pListCtrl->GetItemEdit(i)->DrawEdit(
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pDevice, mtUser2Device, GetTextColor().ToFXColor(255), rcList,
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ptOffset, nullptr, pSysHandler, GetAttachedData());
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pSysHandler->OutputSelectedRect(GetAttachedData(), rcItem);
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} else {
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pDevice->DrawFillRect(&mtUser2Device, rcItem,
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ArgbEncode(255, 0, 51, 113));
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m_pListCtrl->GetItemEdit(i)->DrawEdit(
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pDevice, mtUser2Device, ArgbEncode(255, 255, 255, 255), rcList,
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ptOffset, nullptr, pSysHandler, GetAttachedData());
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}
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} else {
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m_pListCtrl->GetItemEdit(i)->DrawEdit(
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pDevice, mtUser2Device, GetTextColor().ToFXColor(255), rcList,
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ptOffset, nullptr, pSysHandler, nullptr);
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}
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}
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}
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bool CPWL_ListBox::OnKeyDown(FWL_VKEYCODE nKeyCode, Mask<FWL_EVENTFLAG> nFlag) {
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CPWL_Wnd::OnKeyDown(nKeyCode, nFlag);
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switch (nKeyCode) {
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default:
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return false;
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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_Left:
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case FWL_VKEY_End:
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case FWL_VKEY_Right:
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break;
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}
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switch (nKeyCode) {
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case FWL_VKEY_Up:
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m_pListCtrl->OnVK_UP(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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case FWL_VKEY_Down:
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m_pListCtrl->OnVK_DOWN(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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case FWL_VKEY_Home:
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m_pListCtrl->OnVK_HOME(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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case FWL_VKEY_Left:
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m_pListCtrl->OnVK_LEFT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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case FWL_VKEY_End:
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m_pListCtrl->OnVK_END(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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case FWL_VKEY_Right:
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m_pListCtrl->OnVK_RIGHT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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break;
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default:
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break;
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}
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OnNotifySelectionChanged(true, nFlag);
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return true;
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}
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bool CPWL_ListBox::OnChar(uint16_t nChar, Mask<FWL_EVENTFLAG> nFlag) {
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CPWL_Wnd::OnChar(nChar, nFlag);
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if (!m_pListCtrl->OnChar(nChar, IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag)))
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return false;
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OnNotifySelectionChanged(true, nFlag);
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return true;
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}
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bool CPWL_ListBox::OnLButtonDown(Mask<FWL_EVENTFLAG> nFlag,
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const CFX_PointF& point) {
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CPWL_Wnd::OnLButtonDown(nFlag, point);
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if (ClientHitTest(point)) {
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m_bMouseDown = true;
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SetFocus();
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SetCapture();
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m_pListCtrl->OnMouseDown(point, IsSHIFTKeyDown(nFlag),
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IsCTRLKeyDown(nFlag));
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}
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return true;
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}
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bool CPWL_ListBox::OnLButtonUp(Mask<FWL_EVENTFLAG> nFlag,
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const CFX_PointF& point) {
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CPWL_Wnd::OnLButtonUp(nFlag, point);
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if (m_bMouseDown) {
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ReleaseCapture();
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m_bMouseDown = false;
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}
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OnNotifySelectionChanged(false, nFlag);
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return true;
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}
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void CPWL_ListBox::SetHoverSel(bool bHoverSel) {
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m_bHoverSel = bHoverSel;
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}
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bool CPWL_ListBox::OnMouseMove(Mask<FWL_EVENTFLAG> nFlag,
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const CFX_PointF& point) {
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CPWL_Wnd::OnMouseMove(nFlag, point);
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if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point))
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m_pListCtrl->Select(m_pListCtrl->GetItemIndex(point));
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if (m_bMouseDown)
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m_pListCtrl->OnMouseMove(point, IsSHIFTKeyDown(nFlag),
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IsCTRLKeyDown(nFlag));
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return true;
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}
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void CPWL_ListBox::SetScrollInfo(const PWL_SCROLL_INFO& info) {
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if (CPWL_Wnd* pChild = GetVScrollBar())
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pChild->SetScrollInfo(info);
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}
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void CPWL_ListBox::SetScrollPosition(float pos) {
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if (CPWL_Wnd* pChild = GetVScrollBar())
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pChild->SetScrollPosition(pos);
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}
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void CPWL_ListBox::ScrollWindowVertically(float pos) {
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m_pListCtrl->SetScrollPos(CFX_PointF(0, pos));
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}
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bool CPWL_ListBox::RePosChildWnd() {
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if (!CPWL_Wnd::RePosChildWnd())
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return false;
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m_pListCtrl->SetPlateRect(GetListRect());
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return true;
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}
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bool CPWL_ListBox::OnNotifySelectionChanged(bool bKeyDown,
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Mask<FWL_EVENTFLAG> nFlag) {
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ObservedPtr<CPWL_Wnd> thisObserved(this);
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WideString swChange = GetText();
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WideString strChangeEx;
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int nSelStart = 0;
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int nSelEnd = pdfium::base::checked_cast<int>(swChange.GetLength());
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bool bRC;
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bool bExit;
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std::tie(bRC, bExit) = GetFillerNotify()->OnBeforeKeyStroke(
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GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, bKeyDown,
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nFlag);
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if (!thisObserved)
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return false;
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return bExit;
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}
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CFX_FloatRect CPWL_ListBox::GetFocusRect() const {
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if (m_pListCtrl->IsMultipleSel()) {
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CFX_FloatRect rcCaret = m_pListCtrl->GetItemRect(m_pListCtrl->GetCaret());
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rcCaret.Intersect(GetClientRect());
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return rcCaret;
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}
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return CPWL_Wnd::GetFocusRect();
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}
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void CPWL_ListBox::AddString(const WideString& str) {
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m_pListCtrl->AddString(str);
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}
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WideString CPWL_ListBox::GetText() {
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return m_pListCtrl->GetText();
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}
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void CPWL_ListBox::SetFontSize(float fFontSize) {
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m_pListCtrl->SetFontSize(fFontSize);
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}
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float CPWL_ListBox::GetFontSize() const {
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return m_pListCtrl->GetFontSize();
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}
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void CPWL_ListBox::OnSetScrollInfoY(float fPlateMin,
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float fPlateMax,
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float fContentMin,
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float fContentMax,
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float fSmallStep,
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float fBigStep) {
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PWL_SCROLL_INFO Info;
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Info.fPlateWidth = fPlateMax - fPlateMin;
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Info.fContentMin = fContentMin;
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Info.fContentMax = fContentMax;
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Info.fSmallStep = fSmallStep;
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Info.fBigStep = fBigStep;
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SetScrollInfo(Info);
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CPWL_ScrollBar* pScroll = GetVScrollBar();
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if (!pScroll)
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return;
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if (FXSYS_IsFloatBigger(Info.fPlateWidth,
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Info.fContentMax - Info.fContentMin) ||
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FXSYS_IsFloatEqual(Info.fPlateWidth,
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Info.fContentMax - Info.fContentMin)) {
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if (pScroll->IsVisible()) {
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pScroll->SetVisible(false);
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RePosChildWnd();
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}
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} else {
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if (!pScroll->IsVisible()) {
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pScroll->SetVisible(true);
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RePosChildWnd();
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}
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}
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}
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void CPWL_ListBox::OnSetScrollPosY(float fy) {
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SetScrollPosition(fy);
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}
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void CPWL_ListBox::OnInvalidateRect(const CFX_FloatRect& rect) {
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InvalidateRect(&rect);
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}
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void CPWL_ListBox::Select(int32_t nItemIndex) {
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m_pListCtrl->Select(nItemIndex);
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}
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void CPWL_ListBox::Deselect(int32_t nItemIndex) {
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m_pListCtrl->Deselect(nItemIndex);
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}
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void CPWL_ListBox::SetCaret(int32_t nItemIndex) {
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m_pListCtrl->SetCaret(nItemIndex);
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}
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void CPWL_ListBox::SetTopVisibleIndex(int32_t nItemIndex) {
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m_pListCtrl->SetTopItem(nItemIndex);
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}
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void CPWL_ListBox::ScrollToListItem(int32_t nItemIndex) {
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m_pListCtrl->ScrollToListItem(nItemIndex);
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}
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bool CPWL_ListBox::IsMultipleSel() const {
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return m_pListCtrl->IsMultipleSel();
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}
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int32_t CPWL_ListBox::GetCaretIndex() const {
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return m_pListCtrl->GetCaret();
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}
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int32_t CPWL_ListBox::GetCurSel() const {
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return m_pListCtrl->GetSelect();
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}
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bool CPWL_ListBox::IsItemSelected(int32_t nItemIndex) const {
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return m_pListCtrl->IsItemSelected(nItemIndex);
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}
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int32_t CPWL_ListBox::GetTopVisibleIndex() const {
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m_pListCtrl->ScrollToListItem(m_pListCtrl->GetFirstSelected());
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return m_pListCtrl->GetTopItem();
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}
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int32_t CPWL_ListBox::GetCount() const {
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return m_pListCtrl->GetCount();
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}
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CFX_FloatRect CPWL_ListBox::GetContentRect() const {
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return m_pListCtrl->GetContentRect();
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}
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float CPWL_ListBox::GetFirstHeight() const {
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return m_pListCtrl->GetFirstHeight();
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}
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CFX_FloatRect CPWL_ListBox::GetListRect() const {
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float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth());
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return GetWindowRect().GetDeflated(width, width);
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}
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bool CPWL_ListBox::OnMouseWheel(Mask<FWL_EVENTFLAG> nFlag,
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const CFX_PointF& point,
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const CFX_Vector& delta) {
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if (delta.y < 0)
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m_pListCtrl->OnVK_DOWN(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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else
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m_pListCtrl->OnVK_UP(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
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OnNotifySelectionChanged(false, nFlag);
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return true;
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}
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