// 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_ComboBox.h"
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#include "core/fxge/include/fx_ge.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_ListBox.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 PWLCB_DEFAULTFONTSIZE 12.0f
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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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FX_BOOL CPWL_CBListBox::OnLButtonUp(const CFX_FloatPoint& point,
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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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if (ClientHitTest(point)) {
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if (CPWL_Wnd* pParent = GetParentWindow()) {
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pParent->OnNotify(this, PNM_LBUTTONUP, 0,
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PWL_MAKEDWORD(point.x, point.y));
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}
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FX_BOOL bExit = FALSE;
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OnNotifySelChanged(FALSE, bExit, nFlag);
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if (bExit)
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return FALSE;
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}
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}
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return TRUE;
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}
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FX_BOOL CPWL_CBListBox::OnKeyDownWithExit(uint16_t nChar,
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FX_BOOL& bExit,
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uint32_t 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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OnNotifySelChanged(TRUE, bExit, nFlag);
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return TRUE;
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}
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FX_BOOL CPWL_CBListBox::OnCharWithExit(uint16_t nChar,
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FX_BOOL& bExit,
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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 (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)))
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return FALSE;
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if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetParentWindow()) {
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pComboBox->SetSelectText();
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}
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OnNotifySelChanged(TRUE, bExit, nFlag);
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return TRUE;
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}
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void CPWL_CBButton::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) {
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CPWL_Wnd::GetThisAppearanceStream(sAppStream);
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CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
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if (IsVisible() && !rectWnd.IsEmpty()) {
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CFX_ByteTextBuf sButton;
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CFX_FloatPoint ptCenter = GetCenterPoint();
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CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
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ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
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ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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CFX_FloatPoint pt3(ptCenter.x,
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ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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if (IsFloatBigger(rectWnd.right - rectWnd.left,
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PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
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IsFloatBigger(rectWnd.top - rectWnd.bottom,
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PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
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sButton << "0 g\n";
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sButton << pt1.x << " " << pt1.y << " m\n";
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sButton << pt2.x << " " << pt2.y << " l\n";
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sButton << pt3.x << " " << pt3.y << " l\n";
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sButton << pt1.x << " " << pt1.y << " l f\n";
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sAppStream << "q\n" << sButton << "Q\n";
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}
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}
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}
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void CPWL_CBButton::DrawThisAppearance(CFX_RenderDevice* pDevice,
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CFX_Matrix* pUser2Device) {
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CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device);
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CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
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if (IsVisible() && !rectWnd.IsEmpty()) {
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CFX_FloatPoint ptCenter = GetCenterPoint();
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CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
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ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
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ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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CFX_FloatPoint pt3(ptCenter.x,
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ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
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if (IsFloatBigger(rectWnd.right - rectWnd.left,
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PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
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IsFloatBigger(rectWnd.top - rectWnd.bottom,
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PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
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CFX_PathData path;
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path.SetPointCount(4);
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path.SetPoint(0, pt1.x, pt1.y, FXPT_MOVETO);
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path.SetPoint(1, pt2.x, pt2.y, FXPT_LINETO);
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path.SetPoint(2, pt3.x, pt3.y, FXPT_LINETO);
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path.SetPoint(3, pt1.x, pt1.y, FXPT_LINETO);
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pDevice->DrawPath(&path, pUser2Device, nullptr,
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CPWL_Utils::PWLColorToFXColor(PWL_DEFAULT_BLACKCOLOR,
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GetTransparency()),
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0, FXFILL_ALTERNATE);
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}
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}
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}
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FX_BOOL CPWL_CBButton::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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SetCapture();
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if (CPWL_Wnd* pParent = GetParentWindow()) {
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pParent->OnNotify(this, PNM_LBUTTONDOWN, 0,
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PWL_MAKEDWORD(point.x, point.y));
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}
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return TRUE;
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}
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FX_BOOL CPWL_CBButton::OnLButtonUp(const CFX_FloatPoint& point,
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uint32_t nFlag) {
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CPWL_Wnd::OnLButtonUp(point, nFlag);
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ReleaseCapture();
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return TRUE;
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}
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CPWL_ComboBox::CPWL_ComboBox()
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: m_pEdit(nullptr),
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m_pButton(nullptr),
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m_pList(nullptr),
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m_bPopup(FALSE),
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m_nPopupWhere(0),
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m_nSelectItem(-1),
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m_pFillerNotify(nullptr) {}
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CFX_ByteString CPWL_ComboBox::GetClassName() const {
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return "CPWL_ComboBox";
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}
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void CPWL_ComboBox::OnCreate(PWL_CREATEPARAM& cp) {
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cp.dwFlags &= ~PWS_HSCROLL;
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cp.dwFlags &= ~PWS_VSCROLL;
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}
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void CPWL_ComboBox::SetFocus() {
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if (m_pEdit)
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m_pEdit->SetFocus();
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}
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void CPWL_ComboBox::KillFocus() {
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SetPopup(FALSE);
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CPWL_Wnd::KillFocus();
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}
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CFX_WideString CPWL_ComboBox::GetText() const {
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if (m_pEdit) {
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return m_pEdit->GetText();
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}
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return CFX_WideString();
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}
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void CPWL_ComboBox::SetText(const FX_WCHAR* text) {
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if (m_pEdit)
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m_pEdit->SetText(text);
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}
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void CPWL_ComboBox::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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int32_t CPWL_ComboBox::GetSelect() const {
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return m_nSelectItem;
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}
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void CPWL_ComboBox::SetSelect(int32_t nItemIndex) {
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if (m_pList)
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m_pList->Select(nItemIndex);
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m_pEdit->SetText(m_pList->GetText().c_str());
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m_nSelectItem = nItemIndex;
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}
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void CPWL_ComboBox::SetEditSel(int32_t nStartChar, int32_t nEndChar) {
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if (m_pEdit) {
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m_pEdit->SetSel(nStartChar, nEndChar);
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}
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}
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void CPWL_ComboBox::GetEditSel(int32_t& nStartChar, int32_t& nEndChar) const {
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nStartChar = -1;
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nEndChar = -1;
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if (m_pEdit) {
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m_pEdit->GetSel(nStartChar, nEndChar);
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}
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}
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void CPWL_ComboBox::Clear() {
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if (m_pEdit) {
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m_pEdit->Clear();
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}
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}
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void CPWL_ComboBox::CreateChildWnd(const PWL_CREATEPARAM& cp) {
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CreateEdit(cp);
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CreateButton(cp);
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CreateListBox(cp);
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}
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void CPWL_ComboBox::CreateEdit(const PWL_CREATEPARAM& cp) {
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if (!m_pEdit) {
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m_pEdit = new CPWL_CBEdit;
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m_pEdit->AttachFFLData(m_pFormFiller);
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PWL_CREATEPARAM ecp = cp;
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ecp.pParentWnd = this;
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ecp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PES_CENTER |
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PES_AUTOSCROLL | PES_UNDO;
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if (HasFlag(PWS_AUTOFONTSIZE))
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ecp.dwFlags |= PWS_AUTOFONTSIZE;
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if (!HasFlag(PCBS_ALLOWCUSTOMTEXT))
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ecp.dwFlags |= PWS_READONLY;
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ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
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ecp.dwBorderWidth = 0;
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ecp.nBorderStyle = BorderStyle::SOLID;
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m_pEdit->Create(ecp);
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}
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}
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void CPWL_ComboBox::CreateButton(const PWL_CREATEPARAM& cp) {
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if (!m_pButton) {
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m_pButton = new CPWL_CBButton;
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PWL_CREATEPARAM bcp = cp;
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bcp.pParentWnd = this;
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bcp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PWS_BACKGROUND;
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bcp.sBackgroundColor = PWL_SCROLLBAR_BKCOLOR;
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bcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
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bcp.dwBorderWidth = 2;
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bcp.nBorderStyle = BorderStyle::BEVELED;
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bcp.eCursorType = FXCT_ARROW;
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m_pButton->Create(bcp);
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}
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}
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void CPWL_ComboBox::CreateListBox(const PWL_CREATEPARAM& cp) {
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if (!m_pList) {
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m_pList = new CPWL_CBListBox;
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m_pList->AttachFFLData(m_pFormFiller);
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PWL_CREATEPARAM lcp = cp;
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lcp.pParentWnd = this;
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lcp.dwFlags =
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PWS_CHILD | PWS_BORDER | PWS_BACKGROUND | PLBS_HOVERSEL | PWS_VSCROLL;
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lcp.nBorderStyle = BorderStyle::SOLID;
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lcp.dwBorderWidth = 1;
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lcp.eCursorType = FXCT_ARROW;
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lcp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
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if (cp.dwFlags & PWS_AUTOFONTSIZE)
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lcp.fFontSize = PWLCB_DEFAULTFONTSIZE;
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else
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lcp.fFontSize = cp.fFontSize;
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if (cp.sBorderColor.nColorType == COLORTYPE_TRANSPARENT)
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lcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
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if (cp.sBackgroundColor.nColorType == COLORTYPE_TRANSPARENT)
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lcp.sBackgroundColor = PWL_DEFAULT_WHITECOLOR;
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m_pList->Create(lcp);
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}
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}
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void CPWL_ComboBox::RePosChildWnd() {
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CFX_FloatRect rcClient = GetClientRect();
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if (m_bPopup) {
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CFX_FloatRect rclient = GetClientRect();
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CFX_FloatRect rcButton = rclient;
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CFX_FloatRect rcEdit = rcClient;
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CFX_FloatRect rcList = CPWL_Wnd::GetWindowRect();
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FX_FLOAT fOldWindowHeight = m_rcOldWindow.Height();
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FX_FLOAT fOldClientHeight = fOldWindowHeight - GetBorderWidth() * 2;
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switch (m_nPopupWhere) {
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case 0:
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rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
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if (rcButton.left < rclient.left)
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rcButton.left = rclient.left;
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rcButton.bottom = rcButton.top - fOldClientHeight;
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rcEdit.right = rcButton.left - 1.0f;
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if (rcEdit.left < rclient.left)
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rcEdit.left = rclient.left;
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if (rcEdit.right < rcEdit.left)
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rcEdit.right = rcEdit.left;
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rcEdit.bottom = rcEdit.top - fOldClientHeight;
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rcList.top -= fOldWindowHeight;
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break;
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case 1:
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rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
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if (rcButton.left < rclient.left)
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rcButton.left = rclient.left;
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rcButton.top = rcButton.bottom + fOldClientHeight;
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rcEdit.right = rcButton.left - 1.0f;
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if (rcEdit.left < rclient.left)
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rcEdit.left = rclient.left;
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if (rcEdit.right < rcEdit.left)
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rcEdit.right = rcEdit.left;
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rcEdit.top = rcEdit.bottom + fOldClientHeight;
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rcList.bottom += fOldWindowHeight;
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break;
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}
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if (m_pButton)
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m_pButton->Move(rcButton, TRUE, FALSE);
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if (m_pEdit)
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m_pEdit->Move(rcEdit, TRUE, FALSE);
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if (m_pList) {
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m_pList->SetVisible(TRUE);
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m_pList->Move(rcList, TRUE, FALSE);
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m_pList->ScrollToListItem(m_nSelectItem);
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}
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} else {
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CFX_FloatRect rcButton = rcClient;
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rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
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if (rcButton.left < rcClient.left)
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rcButton.left = rcClient.left;
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if (m_pButton)
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m_pButton->Move(rcButton, TRUE, FALSE);
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CFX_FloatRect rcEdit = rcClient;
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rcEdit.right = rcButton.left - 1.0f;
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if (rcEdit.left < rcClient.left)
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rcEdit.left = rcClient.left;
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if (rcEdit.right < rcEdit.left)
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rcEdit.right = rcEdit.left;
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if (m_pEdit)
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m_pEdit->Move(rcEdit, TRUE, FALSE);
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if (m_pList)
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m_pList->SetVisible(FALSE);
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}
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}
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void CPWL_ComboBox::SelectAll() {
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if (m_pEdit && HasFlag(PCBS_ALLOWCUSTOMTEXT))
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m_pEdit->SelectAll();
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}
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CFX_FloatRect CPWL_ComboBox::GetFocusRect() const {
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return CFX_FloatRect();
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}
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void CPWL_ComboBox::SetPopup(FX_BOOL bPopup) {
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if (!m_pList)
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return;
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if (bPopup == m_bPopup)
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return;
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FX_FLOAT fListHeight = m_pList->GetContentRect().Height();
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if (!IsFloatBigger(fListHeight, 0.0f))
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return;
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if (bPopup) {
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if (m_pFillerNotify) {
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#ifdef PDF_ENABLE_XFA
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FX_BOOL bExit = FALSE;
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m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, 0);
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if (bExit)
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return;
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#endif // PDF_ENABLE_XFA
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int32_t nWhere = 0;
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FX_FLOAT fPopupRet = 0.0f;
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FX_FLOAT fPopupMin = 0.0f;
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if (m_pList->GetCount() > 3)
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fPopupMin =
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m_pList->GetFirstHeight() * 3 + m_pList->GetBorderWidth() * 2;
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FX_FLOAT fPopupMax = fListHeight + m_pList->GetBorderWidth() * 2;
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m_pFillerNotify->QueryWherePopup(GetAttachedData(), fPopupMin, fPopupMax,
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nWhere, fPopupRet);
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if (IsFloatBigger(fPopupRet, 0.0f)) {
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m_bPopup = bPopup;
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CFX_FloatRect rcWindow = CPWL_Wnd::GetWindowRect();
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m_rcOldWindow = rcWindow;
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switch (nWhere) {
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default:
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case 0:
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rcWindow.bottom -= fPopupRet;
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break;
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case 1:
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rcWindow.top += fPopupRet;
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break;
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}
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m_nPopupWhere = nWhere;
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Move(rcWindow, TRUE, TRUE);
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#ifdef PDF_ENABLE_XFA
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bExit = FALSE;
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m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, 0);
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if (bExit)
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return;
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#endif // PDF_ENABLE_XFA
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}
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}
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} else {
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m_bPopup = bPopup;
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Move(m_rcOldWindow, TRUE, TRUE);
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}
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}
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FX_BOOL CPWL_ComboBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
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if (!m_pList)
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return FALSE;
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if (!m_pEdit)
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return FALSE;
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m_nSelectItem = -1;
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switch (nChar) {
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case FWL_VKEY_Up:
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if (m_pList->GetCurSel() > 0) {
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FX_BOOL bExit = FALSE;
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#ifdef PDF_ENABLE_XFA
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if (m_pFillerNotify) {
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m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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bExit = FALSE;
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m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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}
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#endif // PDF_ENABLE_XFA
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if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
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if (bExit)
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return FALSE;
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SetSelectText();
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}
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}
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return TRUE;
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case FWL_VKEY_Down:
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if (m_pList->GetCurSel() < m_pList->GetCount() - 1) {
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FX_BOOL bExit = FALSE;
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#ifdef PDF_ENABLE_XFA
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if (m_pFillerNotify) {
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m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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bExit = FALSE;
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m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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}
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#endif // PDF_ENABLE_XFA
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if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
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if (bExit)
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return FALSE;
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SetSelectText();
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}
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}
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return TRUE;
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}
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if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
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return m_pEdit->OnKeyDown(nChar, nFlag);
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return FALSE;
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}
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FX_BOOL CPWL_ComboBox::OnChar(uint16_t nChar, uint32_t nFlag) {
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if (!m_pList)
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return FALSE;
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if (!m_pEdit)
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return FALSE;
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m_nSelectItem = -1;
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if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
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return m_pEdit->OnChar(nChar, nFlag);
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FX_BOOL bExit = FALSE;
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#ifdef PDF_ENABLE_XFA
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if (m_pFillerNotify) {
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m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
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if (bExit)
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return FALSE;
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}
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#endif // PDF_ENABLE_XFA
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return m_pList->OnCharWithExit(nChar, bExit, nFlag) ? bExit : FALSE;
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}
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void CPWL_ComboBox::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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switch (msg) {
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case PNM_LBUTTONDOWN:
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if (pWnd == m_pButton) {
|
SetPopup(!m_bPopup);
|
return;
|
}
|
break;
|
case PNM_LBUTTONUP:
|
if (m_pEdit && m_pList) {
|
if (pWnd == m_pList) {
|
SetSelectText();
|
SelectAll();
|
m_pEdit->SetFocus();
|
SetPopup(FALSE);
|
return;
|
}
|
}
|
}
|
|
CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
|
}
|
|
FX_BOOL CPWL_ComboBox::IsPopup() const {
|
return m_bPopup;
|
}
|
|
void CPWL_ComboBox::SetSelectText() {
|
CFX_WideString swText = m_pList->GetText();
|
m_pEdit->SelectAll();
|
m_pEdit->ReplaceSel(m_pList->GetText().c_str());
|
m_pEdit->SelectAll();
|
|
m_nSelectItem = m_pList->GetCurSel();
|
}
|
|
void CPWL_ComboBox::SetFillerNotify(IPWL_Filler_Notify* pNotify) {
|
m_pFillerNotify = pNotify;
|
|
if (m_pEdit)
|
m_pEdit->SetFillerNotify(pNotify);
|
|
if (m_pList)
|
m_pList->SetFillerNotify(pNotify);
|
}
|
