diff options
Diffstat (limited to 'fpdfsdk/pdfwindow/cpwl_combo_box.cpp')
| -rw-r--r-- | fpdfsdk/pdfwindow/cpwl_combo_box.cpp | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/fpdfsdk/pdfwindow/cpwl_combo_box.cpp b/fpdfsdk/pdfwindow/cpwl_combo_box.cpp new file mode 100644 index 0000000000..42786806d0 --- /dev/null +++ b/fpdfsdk/pdfwindow/cpwl_combo_box.cpp @@ -0,0 +1,587 @@ +// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "fpdfsdk/pdfwindow/cpwl_combo_box.h" + +#include <algorithm> + +#include "core/fxge/cfx_pathdata.h" +#include "core/fxge/cfx_renderdevice.h" +#include "fpdfsdk/fxedit/fxet_list.h" +#include "fpdfsdk/pdfwindow/cpwl_edit.h" +#include "fpdfsdk/pdfwindow/cpwl_edit_ctrl.h" +#include "fpdfsdk/pdfwindow/cpwl_list_box.h" +#include "fpdfsdk/pdfwindow/cpwl_utils.h" +#include "fpdfsdk/pdfwindow/cpwl_wnd.h" +#include "public/fpdf_fwlevent.h" + +#define PWLCB_DEFAULTFONTSIZE 12.0f + +bool CPWL_CBListBox::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) { + CPWL_Wnd::OnLButtonUp(point, nFlag); + + if (!m_bMouseDown) + return true; + + ReleaseCapture(); + m_bMouseDown = false; + + if (!ClientHitTest(point)) + return true; + if (CPWL_Wnd* pParent = GetParentWindow()) + pParent->OnNotify(this, PNM_LBUTTONUP, 0, PWL_MAKEDWORD(point.x, point.y)); + + bool bExit = false; + OnNotifySelChanged(false, bExit, nFlag); + + return !bExit; +} + +bool CPWL_CBListBox::OnKeyDownWithExit(uint16_t nChar, + bool& bExit, + uint32_t nFlag) { + switch (nChar) { + case FWL_VKEY_Up: + case FWL_VKEY_Down: + case FWL_VKEY_Home: + case FWL_VKEY_Left: + case FWL_VKEY_End: + case FWL_VKEY_Right: + break; + default: + return false; + } + + switch (nChar) { + case FWL_VKEY_Up: + m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_Down: + m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_Home: + m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_Left: + m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_End: + m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_Right: + m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + break; + case FWL_VKEY_Delete: + break; + } + + OnNotifySelChanged(true, bExit, nFlag); + + return true; +} + +bool CPWL_CBListBox::OnCharWithExit(uint16_t nChar, + bool& bExit, + uint32_t nFlag) { + if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag))) + return false; + if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetParentWindow()) + pComboBox->SetSelectText(); + + OnNotifySelChanged(true, bExit, nFlag); + + return true; +} + +void CPWL_CBButton::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) { + CPWL_Wnd::GetThisAppearanceStream(sAppStream); + + CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect(); + + if (IsVisible() && !rectWnd.IsEmpty()) { + CFX_ByteTextBuf sButton; + + CFX_PointF ptCenter = GetCenterPoint(); + + CFX_PointF pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN, + ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + CFX_PointF pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN, + ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + CFX_PointF pt3(ptCenter.x, + ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + + if (IsFloatBigger(rectWnd.right - rectWnd.left, + PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) && + IsFloatBigger(rectWnd.top - rectWnd.bottom, + PWL_CBBUTTON_TRIANGLE_HALFLEN)) { + sButton << "0 g\n"; + sButton << pt1.x << " " << pt1.y << " m\n"; + sButton << pt2.x << " " << pt2.y << " l\n"; + sButton << pt3.x << " " << pt3.y << " l\n"; + sButton << pt1.x << " " << pt1.y << " l f\n"; + + sAppStream << "q\n" << sButton << "Q\n"; + } + } +} + +void CPWL_CBButton::DrawThisAppearance(CFX_RenderDevice* pDevice, + CFX_Matrix* pUser2Device) { + CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device); + + CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect(); + + if (IsVisible() && !rectWnd.IsEmpty()) { + CFX_PointF ptCenter = GetCenterPoint(); + + CFX_PointF pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN, + ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + CFX_PointF pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN, + ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + CFX_PointF pt3(ptCenter.x, + ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); + + if (IsFloatBigger(rectWnd.right - rectWnd.left, + PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) && + IsFloatBigger(rectWnd.top - rectWnd.bottom, + PWL_CBBUTTON_TRIANGLE_HALFLEN)) { + CFX_PathData path; + path.AppendPoint(pt1, FXPT_TYPE::MoveTo, false); + path.AppendPoint(pt2, FXPT_TYPE::LineTo, false); + path.AppendPoint(pt3, FXPT_TYPE::LineTo, false); + path.AppendPoint(pt1, FXPT_TYPE::LineTo, false); + + pDevice->DrawPath(&path, pUser2Device, nullptr, + PWL_DEFAULT_BLACKCOLOR.ToFXColor(GetTransparency()), 0, + FXFILL_ALTERNATE); + } + } +} + +bool CPWL_CBButton::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) { + CPWL_Wnd::OnLButtonDown(point, nFlag); + + SetCapture(); + + if (CPWL_Wnd* pParent = GetParentWindow()) { + pParent->OnNotify(this, PNM_LBUTTONDOWN, 0, + PWL_MAKEDWORD(point.x, point.y)); + } + + return true; +} + +bool CPWL_CBButton::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) { + CPWL_Wnd::OnLButtonUp(point, nFlag); + + ReleaseCapture(); + + return true; +} + +CPWL_ComboBox::CPWL_ComboBox() + : m_pEdit(nullptr), + m_pButton(nullptr), + m_pList(nullptr), + m_bPopup(false), + m_bBottom(true), + m_nSelectItem(-1), + m_pFillerNotify(nullptr) {} + +CPWL_ComboBox::~CPWL_ComboBox() {} + +CFX_ByteString CPWL_ComboBox::GetClassName() const { + return "CPWL_ComboBox"; +} + +void CPWL_ComboBox::OnCreate(PWL_CREATEPARAM& cp) { + cp.dwFlags &= ~PWS_HSCROLL; + cp.dwFlags &= ~PWS_VSCROLL; +} + +void CPWL_ComboBox::SetFocus() { + if (m_pEdit) + m_pEdit->SetFocus(); +} + +void CPWL_ComboBox::KillFocus() { + SetPopup(false); + CPWL_Wnd::KillFocus(); +} + +CFX_WideString CPWL_ComboBox::GetText() const { + if (m_pEdit) { + return m_pEdit->GetText(); + } + return CFX_WideString(); +} + +void CPWL_ComboBox::SetText(const CFX_WideString& text) { + if (m_pEdit) + m_pEdit->SetText(text); +} + +void CPWL_ComboBox::AddString(const CFX_WideString& str) { + if (m_pList) + m_pList->AddString(str); +} + +int32_t CPWL_ComboBox::GetSelect() const { + return m_nSelectItem; +} + +void CPWL_ComboBox::SetSelect(int32_t nItemIndex) { + if (m_pList) + m_pList->Select(nItemIndex); + + m_pEdit->SetText(m_pList->GetText()); + m_nSelectItem = nItemIndex; +} + +void CPWL_ComboBox::SetEditSel(int32_t nStartChar, int32_t nEndChar) { + if (m_pEdit) + m_pEdit->SetSel(nStartChar, nEndChar); +} + +void CPWL_ComboBox::GetEditSel(int32_t& nStartChar, int32_t& nEndChar) const { + nStartChar = -1; + nEndChar = -1; + + if (m_pEdit) + m_pEdit->GetSel(nStartChar, nEndChar); +} + +void CPWL_ComboBox::Clear() { + if (m_pEdit) + m_pEdit->Clear(); +} + +void CPWL_ComboBox::CreateChildWnd(const PWL_CREATEPARAM& cp) { + CreateEdit(cp); + CreateButton(cp); + CreateListBox(cp); +} + +void CPWL_ComboBox::CreateEdit(const PWL_CREATEPARAM& cp) { + if (m_pEdit) + return; + + m_pEdit = new CPWL_CBEdit(); + m_pEdit->AttachFFLData(m_pFormFiller.Get()); + + PWL_CREATEPARAM ecp = cp; + ecp.pParentWnd = this; + ecp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PES_CENTER | + PES_AUTOSCROLL | PES_UNDO; + + if (HasFlag(PWS_AUTOFONTSIZE)) + ecp.dwFlags |= PWS_AUTOFONTSIZE; + + if (!HasFlag(PCBS_ALLOWCUSTOMTEXT)) + ecp.dwFlags |= PWS_READONLY; + + ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0); + ecp.dwBorderWidth = 0; + ecp.nBorderStyle = BorderStyle::SOLID; + m_pEdit->Create(ecp); +} + +void CPWL_ComboBox::CreateButton(const PWL_CREATEPARAM& cp) { + if (m_pButton) + return; + + m_pButton = new CPWL_CBButton; + + PWL_CREATEPARAM bcp = cp; + bcp.pParentWnd = this; + bcp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PWS_BACKGROUND; + bcp.sBackgroundColor = PWL_SCROLLBAR_BKCOLOR; + bcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR; + bcp.dwBorderWidth = 2; + bcp.nBorderStyle = BorderStyle::BEVELED; + bcp.eCursorType = FXCT_ARROW; + m_pButton->Create(bcp); +} + +void CPWL_ComboBox::CreateListBox(const PWL_CREATEPARAM& cp) { + if (m_pList) + return; + + m_pList = new CPWL_CBListBox(); + m_pList->AttachFFLData(m_pFormFiller.Get()); + + PWL_CREATEPARAM lcp = cp; + lcp.pParentWnd = this; + lcp.dwFlags = + PWS_CHILD | PWS_BORDER | PWS_BACKGROUND | PLBS_HOVERSEL | PWS_VSCROLL; + lcp.nBorderStyle = BorderStyle::SOLID; + lcp.dwBorderWidth = 1; + lcp.eCursorType = FXCT_ARROW; + lcp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0); + + if (cp.dwFlags & PWS_AUTOFONTSIZE) + lcp.fFontSize = PWLCB_DEFAULTFONTSIZE; + else + lcp.fFontSize = cp.fFontSize; + + if (cp.sBorderColor.nColorType == COLORTYPE_TRANSPARENT) + lcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR; + + if (cp.sBackgroundColor.nColorType == COLORTYPE_TRANSPARENT) + lcp.sBackgroundColor = PWL_DEFAULT_WHITECOLOR; + + m_pList->Create(lcp); +} + +void CPWL_ComboBox::RePosChildWnd() { + const CFX_FloatRect rcClient = GetClientRect(); + if (m_bPopup) { + const float fOldWindowHeight = m_rcOldWindow.Height(); + const float fOldClientHeight = fOldWindowHeight - GetBorderWidth() * 2; + + CFX_FloatRect rcList = CPWL_Wnd::GetWindowRect(); + CFX_FloatRect rcButton = rcClient; + rcButton.left = + std::max(rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH, rcClient.left); + CFX_FloatRect rcEdit = rcClient; + rcEdit.right = std::max(rcButton.left - 1.0f, rcEdit.left); + if (m_bBottom) { + rcButton.bottom = rcButton.top - fOldClientHeight; + rcEdit.bottom = rcEdit.top - fOldClientHeight; + rcList.top -= fOldWindowHeight; + } else { + rcButton.top = rcButton.bottom + fOldClientHeight; + rcEdit.top = rcEdit.bottom + fOldClientHeight; + rcList.bottom += fOldWindowHeight; + } + + if (m_pButton) + m_pButton->Move(rcButton, true, false); + + if (m_pEdit) + m_pEdit->Move(rcEdit, true, false); + + if (m_pList) { + m_pList->SetVisible(true); + m_pList->Move(rcList, true, false); + m_pList->ScrollToListItem(m_nSelectItem); + } + return; + } + + CFX_FloatRect rcButton = rcClient; + rcButton.left = + std::max(rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH, rcClient.left); + + if (m_pButton) + m_pButton->Move(rcButton, true, false); + + CFX_FloatRect rcEdit = rcClient; + rcEdit.right = std::max(rcButton.left - 1.0f, rcEdit.left); + + if (m_pEdit) + m_pEdit->Move(rcEdit, true, false); + + if (m_pList) + m_pList->SetVisible(false); +} + +void CPWL_ComboBox::SelectAll() { + if (m_pEdit && HasFlag(PCBS_ALLOWCUSTOMTEXT)) + m_pEdit->SelectAll(); +} + +CFX_FloatRect CPWL_ComboBox::GetFocusRect() const { + return CFX_FloatRect(); +} + +void CPWL_ComboBox::SetPopup(bool bPopup) { + if (!m_pList) + return; + if (bPopup == m_bPopup) + return; + float fListHeight = m_pList->GetContentRect().Height(); + if (!IsFloatBigger(fListHeight, 0.0f)) + return; + + if (!bPopup) { + m_bPopup = bPopup; + Move(m_rcOldWindow, true, true); + return; + } + + if (!m_pFillerNotify) + return; + +#ifdef PDF_ENABLE_XFA + bool bExit = false; + m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, 0); + if (bExit) + return; +#endif // PDF_ENABLE_XFA + + float fBorderWidth = m_pList->GetBorderWidth() * 2; + float fPopupMin = 0.0f; + if (m_pList->GetCount() > 3) + fPopupMin = m_pList->GetFirstHeight() * 3 + fBorderWidth; + float fPopupMax = fListHeight + fBorderWidth; + + bool bBottom; + float fPopupRet; + m_pFillerNotify->QueryWherePopup(GetAttachedData(), fPopupMin, fPopupMax, + &bBottom, &fPopupRet); + if (!IsFloatBigger(fPopupRet, 0.0f)) + return; + + m_rcOldWindow = CPWL_Wnd::GetWindowRect(); + m_bPopup = bPopup; + m_bBottom = bBottom; + + CFX_FloatRect rcWindow = m_rcOldWindow; + if (bBottom) + rcWindow.bottom -= fPopupRet; + else + rcWindow.top += fPopupRet; + + Move(rcWindow, true, true); +#ifdef PDF_ENABLE_XFA + bExit = false; + m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, 0); +#endif // PDF_ENABLE_XFA +} + +bool CPWL_ComboBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) { + if (!m_pList) + return false; + if (!m_pEdit) + return false; + + m_nSelectItem = -1; + + switch (nChar) { + case FWL_VKEY_Up: + if (m_pList->GetCurSel() > 0) { + bool bExit = false; +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + bExit = false; + m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + } +#endif // PDF_ENABLE_XFA + if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) { + if (bExit) + return false; + SetSelectText(); + } + } + return true; + case FWL_VKEY_Down: + if (m_pList->GetCurSel() < m_pList->GetCount() - 1) { + bool bExit = false; +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + bExit = false; + m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + } +#endif // PDF_ENABLE_XFA + if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) { + if (bExit) + return false; + SetSelectText(); + } + } + return true; + } + + if (HasFlag(PCBS_ALLOWCUSTOMTEXT)) + return m_pEdit->OnKeyDown(nChar, nFlag); + + return false; +} + +bool CPWL_ComboBox::OnChar(uint16_t nChar, uint32_t nFlag) { + if (!m_pList) + return false; + + if (!m_pEdit) + return false; + + m_nSelectItem = -1; + if (HasFlag(PCBS_ALLOWCUSTOMTEXT)) + return m_pEdit->OnChar(nChar, nFlag); + + bool bExit = false; +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + + m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag); + if (bExit) + return false; + } +#endif // PDF_ENABLE_XFA + return m_pList->OnCharWithExit(nChar, bExit, nFlag) ? bExit : false; +} + +void CPWL_ComboBox::OnNotify(CPWL_Wnd* pWnd, + uint32_t msg, + intptr_t wParam, + intptr_t lParam) { + switch (msg) { + case PNM_LBUTTONDOWN: + 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; + } + } + break; + } + + CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam); +} + +bool CPWL_ComboBox::IsPopup() const { + return m_bPopup; +} + +void CPWL_ComboBox::SetSelectText() { + m_pEdit->SelectAll(); + m_pEdit->ReplaceSel(m_pList->GetText()); + 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); +} |