// 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 "fpdfsdk/pdfwindow/PWL_ListBox.h"
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#include "fpdfsdk/fxedit/include/fxet_edit.h"
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#include "fpdfsdk/fxedit/include/fxet_list.h"
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#include "fpdfsdk/pdfwindow/PWL_Edit.h"
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#include "fpdfsdk/pdfwindow/PWL_EditCtrl.h"
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#include "fpdfsdk/pdfwindow/PWL_ScrollBar.h"
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#include "fpdfsdk/pdfwindow/PWL_Utils.h"
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#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
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#include "public/fpdf_fwlevent.h"
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#define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
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#define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
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#define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
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#define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb))
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CPWL_List_Notify::CPWL_List_Notify(CPWL_ListBox* pList) : m_pList(pList) {
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ASSERT(m_pList);
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}
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CPWL_List_Notify::~CPWL_List_Notify() {}
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void CPWL_List_Notify::IOnSetScrollInfoY(FX_FLOAT fPlateMin,
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FX_FLOAT fPlateMax,
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FX_FLOAT fContentMin,
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FX_FLOAT fContentMax,
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FX_FLOAT fSmallStep,
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FX_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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m_pList->OnNotify(m_pList, PNM_SETSCROLLINFO, SBT_VSCROLL, (intptr_t)&Info);
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if (CPWL_ScrollBar* pScroll = m_pList->GetVScrollBar()) {
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if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) ||
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IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) {
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if (pScroll->IsVisible()) {
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pScroll->SetVisible(FALSE);
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m_pList->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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m_pList->RePosChildWnd();
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}
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}
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}
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}
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void CPWL_List_Notify::IOnSetScrollPosY(FX_FLOAT fy) {
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m_pList->OnNotify(m_pList, PNM_SETSCROLLPOS, SBT_VSCROLL, (intptr_t)&fy);
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}
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void CPWL_List_Notify::IOnInvalidateRect(CFX_FloatRect* pRect) {
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m_pList->InvalidateRect(pRect);
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}
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CPWL_ListBox::CPWL_ListBox()
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: m_pList(new CFX_ListCtrl),
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m_bMouseDown(FALSE),
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m_bHoverSel(FALSE),
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m_pFillerNotify(nullptr) {}
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CPWL_ListBox::~CPWL_ListBox() {
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}
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CFX_ByteString CPWL_ListBox::GetClassName() const {
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return "CPWL_ListBox";
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}
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void CPWL_ListBox::OnCreated() {
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if (m_pList) {
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m_pList->SetFontMap(GetFontMap());
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m_pListNotify.reset(new CPWL_List_Notify(this));
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m_pList->SetNotify(m_pListNotify.get());
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SetHoverSel(HasFlag(PLBS_HOVERSEL));
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m_pList->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL));
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m_pList->SetFontSize(GetCreationParam().fFontSize);
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m_bHoverSel = HasFlag(PLBS_HOVERSEL);
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}
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}
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void CPWL_ListBox::OnDestroy() {
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m_pListNotify.reset();
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}
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void CPWL_ListBox::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) {
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CPWL_Wnd::GetThisAppearanceStream(sAppStream);
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CFX_ByteTextBuf sListItems;
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if (m_pList) {
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CFX_FloatRect rcPlate = m_pList->GetPlateRect();
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for (int32_t i = 0, sz = m_pList->GetCount(); i < sz; i++) {
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CFX_FloatRect rcItem = m_pList->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_FloatPoint ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
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if (m_pList->IsItemSelected(i)) {
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sListItems << CPWL_Utils::GetRectFillAppStream(rcItem,
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PWL_DEFAULT_SELBACKCOLOR)
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.AsStringC();
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CFX_ByteString sItem =
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CPWL_Utils::GetEditAppStream(m_pList->GetItemEdit(i), ptOffset);
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if (sItem.GetLength() > 0) {
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sListItems << "BT\n"
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<< CPWL_Utils::GetColorAppStream(PWL_DEFAULT_SELTEXTCOLOR)
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.AsStringC()
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<< sItem.AsStringC() << "ET\n";
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}
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} else {
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CFX_ByteString sItem =
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CPWL_Utils::GetEditAppStream(m_pList->GetItemEdit(i), ptOffset);
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if (sItem.GetLength() > 0) {
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sListItems << "BT\n"
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<< CPWL_Utils::GetColorAppStream(GetTextColor())
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.AsStringC()
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<< sItem.AsStringC() << "ET\n";
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}
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}
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}
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}
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if (sListItems.GetLength() > 0) {
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CFX_ByteTextBuf sClip;
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CFX_FloatRect rcClient = GetClientRect();
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sClip << "q\n";
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sClip << rcClient.left << " " << rcClient.bottom << " "
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<< rcClient.right - rcClient.left << " "
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<< rcClient.top - rcClient.bottom << " re W n\n";
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sClip << sListItems << "Q\n";
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sAppStream << "/Tx BMC\n" << sClip << "EMC\n";
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}
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}
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void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
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CFX_Matrix* pUser2Device) {
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CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device);
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if (m_pList) {
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CFX_FloatRect rcPlate = m_pList->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_pList->GetCount(); i < sz; i++) {
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CFX_FloatRect rcItem = m_pList->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_FloatPoint ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
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if (CFX_Edit* pEdit = m_pList->GetItemEdit(i)) {
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CFX_FloatRect rcContent = pEdit->GetContentRect();
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if (rcContent.Width() > rcClient.Width())
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rcItem.Intersect(rcList);
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else
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rcItem.Intersect(rcClient);
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}
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if (m_pList->IsItemSelected(i)) {
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CFX_SystemHandler* pSysHandler = GetSystemHandler();
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if (pSysHandler && pSysHandler->IsSelectionImplemented()) {
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CFX_Edit::DrawEdit(
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pDevice, pUser2Device, m_pList->GetItemEdit(i),
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CPWL_Utils::PWLColorToFXColor(GetTextColor()),
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CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()), rcList,
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ptOffset, nullptr, pSysHandler, m_pFormFiller);
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pSysHandler->OutputSelectedRect(m_pFormFiller, rcItem);
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} else {
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CPWL_Utils::DrawFillRect(pDevice, pUser2Device, rcItem,
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ArgbEncode(255, 0, 51, 113));
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CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
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ArgbEncode(255, 255, 255, 255), 0, rcList,
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ptOffset, nullptr, pSysHandler, m_pFormFiller);
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}
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} else {
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CFX_SystemHandler* pSysHandler = GetSystemHandler();
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CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
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CPWL_Utils::PWLColorToFXColor(GetTextColor()),
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CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()),
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rcList, ptOffset, nullptr, pSysHandler, nullptr);
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}
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}
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}
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}
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FX_BOOL CPWL_ListBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
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CPWL_Wnd::OnKeyDown(nChar, nFlag);
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if (!m_pList)
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return FALSE;
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switch (nChar) {
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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 (nChar) {
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case FWL_VKEY_Up:
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m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_Down:
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m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_Home:
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m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_Left:
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m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_End:
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m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_Right:
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m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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break;
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case FWL_VKEY_Delete:
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break;
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}
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FX_BOOL bExit = FALSE;
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OnNotifySelChanged(TRUE, bExit, nFlag);
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return TRUE;
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}
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FX_BOOL CPWL_ListBox::OnChar(uint16_t nChar, uint32_t nFlag) {
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CPWL_Wnd::OnChar(nChar, nFlag);
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if (!m_pList)
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return FALSE;
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if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)))
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return FALSE;
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FX_BOOL bExit = FALSE;
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OnNotifySelChanged(TRUE, bExit, nFlag);
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return TRUE;
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}
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FX_BOOL CPWL_ListBox::OnLButtonDown(const CFX_FloatPoint& point,
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uint32_t nFlag) {
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CPWL_Wnd::OnLButtonDown(point, nFlag);
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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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if (m_pList)
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m_pList->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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}
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return TRUE;
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}
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FX_BOOL CPWL_ListBox::OnLButtonUp(const CFX_FloatPoint& point, uint32_t nFlag) {
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CPWL_Wnd::OnLButtonUp(point, nFlag);
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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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FX_BOOL bExit = FALSE;
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OnNotifySelChanged(FALSE, bExit, nFlag);
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return TRUE;
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}
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void CPWL_ListBox::SetHoverSel(FX_BOOL bHoverSel) {
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m_bHoverSel = bHoverSel;
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}
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FX_BOOL CPWL_ListBox::OnMouseMove(const CFX_FloatPoint& point, uint32_t nFlag) {
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CPWL_Wnd::OnMouseMove(point, nFlag);
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if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point)) {
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if (m_pList)
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m_pList->Select(m_pList->GetItemIndex(point));
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}
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if (m_bMouseDown) {
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if (m_pList)
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m_pList->OnMouseMove(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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}
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return TRUE;
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}
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void CPWL_ListBox::OnNotify(CPWL_Wnd* pWnd,
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uint32_t msg,
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intptr_t wParam,
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intptr_t lParam) {
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CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
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FX_FLOAT fPos;
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switch (msg) {
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case PNM_SETSCROLLINFO:
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switch (wParam) {
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case SBT_VSCROLL:
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if (CPWL_Wnd* pChild = GetVScrollBar()) {
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pChild->OnNotify(pWnd, PNM_SETSCROLLINFO, wParam, lParam);
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}
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break;
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}
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break;
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case PNM_SETSCROLLPOS:
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switch (wParam) {
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case SBT_VSCROLL:
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if (CPWL_Wnd* pChild = GetVScrollBar()) {
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pChild->OnNotify(pWnd, PNM_SETSCROLLPOS, wParam, lParam);
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}
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break;
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}
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break;
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case PNM_SCROLLWINDOW:
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fPos = *(FX_FLOAT*)lParam;
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switch (wParam) {
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case SBT_VSCROLL:
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if (m_pList)
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m_pList->SetScrollPos(CFX_FloatPoint(0, fPos));
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break;
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}
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break;
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}
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}
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void CPWL_ListBox::KillFocus() {
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CPWL_Wnd::KillFocus();
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}
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void CPWL_ListBox::RePosChildWnd() {
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CPWL_Wnd::RePosChildWnd();
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if (m_pList)
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m_pList->SetPlateRect(GetListRect());
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}
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void CPWL_ListBox::OnNotifySelChanged(FX_BOOL bKeyDown,
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FX_BOOL& bExit,
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uint32_t nFlag) {
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if (!m_pFillerNotify)
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return;
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FX_BOOL bRC = TRUE;
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CFX_WideString swChange = GetText();
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CFX_WideString strChangeEx;
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int nSelStart = 0;
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int nSelEnd = swChange.GetLength();
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m_pFillerNotify->OnBeforeKeyStroke(GetAttachedData(), swChange, strChangeEx,
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nSelStart, nSelEnd, bKeyDown, bRC, bExit,
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nFlag);
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}
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CFX_FloatRect CPWL_ListBox::GetFocusRect() const {
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if (m_pList && m_pList->IsMultipleSel()) {
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CFX_FloatRect rcCaret = m_pList->GetItemRect(m_pList->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 FX_WCHAR* str) {
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if (m_pList) {
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m_pList->AddString(str);
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}
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}
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CFX_WideString CPWL_ListBox::GetText() const {
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if (m_pList)
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return m_pList->GetText();
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return L"";
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}
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void CPWL_ListBox::SetFontSize(FX_FLOAT fFontSize) {
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if (m_pList)
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m_pList->SetFontSize(fFontSize);
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}
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FX_FLOAT CPWL_ListBox::GetFontSize() const {
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if (m_pList)
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return m_pList->GetFontSize();
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return 0.0f;
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}
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void CPWL_ListBox::Select(int32_t nItemIndex) {
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if (m_pList)
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m_pList->Select(nItemIndex);
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}
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void CPWL_ListBox::SetCaret(int32_t nItemIndex) {
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if (m_pList)
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m_pList->SetCaret(nItemIndex);
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}
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void CPWL_ListBox::SetTopVisibleIndex(int32_t nItemIndex) {
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if (m_pList)
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m_pList->SetTopItem(nItemIndex);
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}
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void CPWL_ListBox::ScrollToListItem(int32_t nItemIndex) {
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if (m_pList)
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m_pList->ScrollToListItem(nItemIndex);
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}
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void CPWL_ListBox::ResetContent() {
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if (m_pList)
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m_pList->Empty();
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}
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void CPWL_ListBox::Reset() {
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if (m_pList)
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m_pList->Cancel();
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}
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FX_BOOL CPWL_ListBox::IsMultipleSel() const {
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if (m_pList)
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return m_pList->IsMultipleSel();
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return FALSE;
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}
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int32_t CPWL_ListBox::GetCaretIndex() const {
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if (m_pList)
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return m_pList->GetCaret();
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return -1;
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}
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int32_t CPWL_ListBox::GetCurSel() const {
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if (m_pList)
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return m_pList->GetSelect();
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return -1;
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}
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FX_BOOL CPWL_ListBox::IsItemSelected(int32_t nItemIndex) const {
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if (m_pList)
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return m_pList->IsItemSelected(nItemIndex);
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return FALSE;
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}
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int32_t CPWL_ListBox::GetTopVisibleIndex() const {
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if (m_pList) {
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m_pList->ScrollToListItem(m_pList->GetFirstSelected());
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return m_pList->GetTopItem();
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}
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return -1;
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}
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int32_t CPWL_ListBox::GetCount() const {
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if (m_pList)
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return m_pList->GetCount();
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return 0;
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}
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int32_t CPWL_ListBox::FindNext(int32_t nIndex, FX_WCHAR nChar) const {
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if (m_pList)
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return m_pList->FindNext(nIndex, nChar);
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return nIndex;
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}
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CFX_FloatRect CPWL_ListBox::GetContentRect() const {
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if (m_pList)
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return m_pList->GetContentRect();
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return CFX_FloatRect();
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}
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FX_FLOAT CPWL_ListBox::GetFirstHeight() const {
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if (m_pList)
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return m_pList->GetFirstHeight();
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return 0.0f;
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}
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CFX_FloatRect CPWL_ListBox::GetListRect() const {
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return CPWL_Utils::DeflateRect(
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GetWindowRect(), (FX_FLOAT)(GetBorderWidth() + GetInnerBorderWidth()));
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}
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FX_BOOL CPWL_ListBox::OnMouseWheel(short zDelta,
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const CFX_FloatPoint& point,
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uint32_t nFlag) {
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if (!m_pList)
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return FALSE;
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if (zDelta < 0) {
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m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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} else {
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m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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}
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FX_BOOL bExit = FALSE;
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OnNotifySelChanged(FALSE, bExit, nFlag);
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return TRUE;
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}
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