| // 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/include/pdfwindow/PWL_ComboBox.h" |
| |
| #include "fpdfsdk/include/pdfwindow/PWL_Edit.h" |
| #include "fpdfsdk/include/pdfwindow/PWL_EditCtrl.h" |
| #include "fpdfsdk/include/pdfwindow/PWL_ListBox.h" |
| #include "fpdfsdk/include/pdfwindow/PWL_Utils.h" |
| #include "fpdfsdk/include/pdfwindow/PWL_Wnd.h" |
| #include "public/fpdf_fwlevent.h" |
| |
| #define PWLCB_DEFAULTFONTSIZE 12.0f |
| |
| #define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001) |
| #define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb))) |
| #define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb))) |
| #define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb)) |
| |
| FX_BOOL CPWL_CBListBox::OnLButtonUp(const CPDF_Point& point, FX_DWORD nFlag) { |
| CPWL_Wnd::OnLButtonUp(point, nFlag); |
| |
| if (m_bMouseDown) { |
| ReleaseCapture(); |
| m_bMouseDown = FALSE; |
| |
| if (ClientHitTest(point)) { |
| if (CPWL_Wnd* pParent = GetParentWindow()) { |
| pParent->OnNotify(this, PNM_LBUTTONUP, 0, |
| PWL_MAKEDWORD(point.x, point.y)); |
| } |
| |
| FX_BOOL bExit = FALSE; |
| OnNotifySelChanged(FALSE, bExit, nFlag); |
| if (bExit) |
| return FALSE; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| FX_BOOL CPWL_CBListBox::OnKeyDownWithExit(FX_WORD nChar, |
| FX_BOOL& bExit, |
| FX_DWORD nFlag) { |
| if (!m_pList) |
| return FALSE; |
| |
| switch (nChar) { |
| default: |
| return FALSE; |
| 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; |
| } |
| |
| 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; |
| } |
| |
| FX_BOOL CPWL_CBListBox::OnCharWithExit(FX_WORD nChar, |
| FX_BOOL& bExit, |
| FX_DWORD nFlag) { |
| if (!m_pList) |
| return FALSE; |
| |
| 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); |
| |
| CPDF_Rect rectWnd = CPWL_Wnd::GetWindowRect(); |
| |
| if (IsVisible() && !rectWnd.IsEmpty()) { |
| CFX_ByteTextBuf sButton; |
| |
| CPDF_Point ptCenter = GetCenterPoint(); |
| |
| CPDF_Point pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN, |
| ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); |
| CPDF_Point pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN, |
| ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); |
| CPDF_Point 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); |
| |
| CPDF_Rect rectWnd = CPWL_Wnd::GetWindowRect(); |
| |
| if (IsVisible() && !rectWnd.IsEmpty()) { |
| CPDF_Point ptCenter = GetCenterPoint(); |
| |
| CPDF_Point pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN, |
| ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); |
| CPDF_Point pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN, |
| ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f); |
| CPDF_Point 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.SetPointCount(4); |
| path.SetPoint(0, pt1.x, pt1.y, FXPT_MOVETO); |
| path.SetPoint(1, pt2.x, pt2.y, FXPT_LINETO); |
| path.SetPoint(2, pt3.x, pt3.y, FXPT_LINETO); |
| path.SetPoint(3, pt1.x, pt1.y, FXPT_LINETO); |
| |
| pDevice->DrawPath(&path, pUser2Device, NULL, |
| CPWL_Utils::PWLColorToFXColor(PWL_DEFAULT_BLACKCOLOR, |
| GetTransparency()), |
| 0, FXFILL_ALTERNATE); |
| } |
| } |
| } |
| |
| FX_BOOL CPWL_CBButton::OnLButtonDown(const CPDF_Point& point, FX_DWORD 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; |
| } |
| |
| FX_BOOL CPWL_CBButton::OnLButtonUp(const CPDF_Point& point, FX_DWORD nFlag) { |
| CPWL_Wnd::OnLButtonUp(point, nFlag); |
| |
| ReleaseCapture(); |
| |
| return TRUE; |
| } |
| |
| CPWL_ComboBox::CPWL_ComboBox() |
| : m_pEdit(NULL), |
| m_pButton(NULL), |
| m_pList(NULL), |
| m_bPopup(FALSE), |
| m_nPopupWhere(0), |
| m_nSelectItem(-1), |
| m_pFillerNotify(NULL) {} |
| |
| 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 FX_WCHAR* text) { |
| if (m_pEdit) |
| m_pEdit->SetText(text); |
| } |
| |
| void CPWL_ComboBox::AddString(const FX_WCHAR* string) { |
| if (m_pList) |
| m_pList->AddString(string); |
| } |
| |
| 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().c_str()); |
| |
| 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) { |
| m_pEdit = new CPWL_CBEdit; |
| m_pEdit->AttachFFLData(m_pFormFiller); |
| |
| 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 = CPDF_Rect(0, 0, 0, 0); |
| ecp.dwBorderWidth = 0; |
| ecp.nBorderStyle = PBS_SOLID; |
| |
| m_pEdit->Create(ecp); |
| } |
| } |
| |
| void CPWL_ComboBox::CreateButton(const PWL_CREATEPARAM& cp) { |
| if (!m_pButton) { |
| 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 = PBS_BEVELED; |
| bcp.eCursorType = FXCT_ARROW; |
| |
| m_pButton->Create(bcp); |
| } |
| } |
| |
| void CPWL_ComboBox::CreateListBox(const PWL_CREATEPARAM& cp) { |
| if (!m_pList) { |
| m_pList = new CPWL_CBListBox; |
| m_pList->AttachFFLData(m_pFormFiller); |
| PWL_CREATEPARAM lcp = cp; |
| lcp.pParentWnd = this; |
| lcp.dwFlags = |
| PWS_CHILD | PWS_BORDER | PWS_BACKGROUND | PLBS_HOVERSEL | PWS_VSCROLL; |
| lcp.nBorderStyle = PBS_SOLID; |
| lcp.dwBorderWidth = 1; |
| lcp.eCursorType = FXCT_ARROW; |
| lcp.rcRectWnd = CPDF_Rect(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() { |
| CPDF_Rect rcClient = GetClientRect(); |
| |
| if (m_bPopup) { |
| CPDF_Rect rclient = GetClientRect(); |
| CPDF_Rect rcButton = rclient; |
| CPDF_Rect rcEdit = rcClient; |
| CPDF_Rect rcList = CPWL_Wnd::GetWindowRect(); |
| |
| FX_FLOAT fOldWindowHeight = m_rcOldWindow.Height(); |
| FX_FLOAT fOldClientHeight = fOldWindowHeight - GetBorderWidth() * 2; |
| |
| switch (m_nPopupWhere) { |
| case 0: |
| rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH; |
| |
| if (rcButton.left < rclient.left) |
| rcButton.left = rclient.left; |
| |
| rcButton.bottom = rcButton.top - fOldClientHeight; |
| |
| rcEdit.right = rcButton.left - 1.0f; |
| |
| if (rcEdit.left < rclient.left) |
| rcEdit.left = rclient.left; |
| |
| if (rcEdit.right < rcEdit.left) |
| rcEdit.right = rcEdit.left; |
| |
| rcEdit.bottom = rcEdit.top - fOldClientHeight; |
| |
| rcList.top -= fOldWindowHeight; |
| |
| break; |
| case 1: |
| rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH; |
| |
| if (rcButton.left < rclient.left) |
| rcButton.left = rclient.left; |
| |
| rcButton.top = rcButton.bottom + fOldClientHeight; |
| |
| rcEdit.right = rcButton.left - 1.0f; |
| |
| if (rcEdit.left < rclient.left) |
| rcEdit.left = rclient.left; |
| |
| if (rcEdit.right < rcEdit.left) |
| rcEdit.right = rcEdit.left; |
| |
| rcEdit.top = rcEdit.bottom + fOldClientHeight; |
| |
| rcList.bottom += fOldWindowHeight; |
| |
| break; |
| } |
| |
| 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); |
| } |
| } else { |
| CPDF_Rect rcButton = rcClient; |
| |
| rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH; |
| |
| if (rcButton.left < rcClient.left) |
| rcButton.left = rcClient.left; |
| |
| if (m_pButton) |
| m_pButton->Move(rcButton, TRUE, FALSE); |
| |
| CPDF_Rect rcEdit = rcClient; |
| rcEdit.right = rcButton.left - 1.0f; |
| |
| if (rcEdit.left < rcClient.left) |
| rcEdit.left = rcClient.left; |
| |
| if (rcEdit.right < rcEdit.left) |
| rcEdit.right = 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(); |
| } |
| |
| CPDF_Rect CPWL_ComboBox::GetFocusRect() const { |
| return CPDF_Rect(); |
| } |
| |
| void CPWL_ComboBox::SetPopup(FX_BOOL bPopup) { |
| if (!m_pList) |
| return; |
| if (bPopup == m_bPopup) |
| return; |
| FX_FLOAT fListHeight = m_pList->GetContentRect().Height(); |
| if (!IsFloatBigger(fListHeight, 0.0f)) |
| return; |
| |
| if (bPopup) { |
| if (m_pFillerNotify) { |
| int32_t nWhere = 0; |
| FX_FLOAT fPopupRet = 0.0f; |
| FX_FLOAT fPopupMin = 0.0f; |
| if (m_pList->GetCount() > 3) |
| fPopupMin = |
| m_pList->GetFirstHeight() * 3 + m_pList->GetBorderWidth() * 2; |
| FX_FLOAT fPopupMax = fListHeight + m_pList->GetBorderWidth() * 2; |
| m_pFillerNotify->QueryWherePopup(GetAttachedData(), fPopupMin, fPopupMax, |
| nWhere, fPopupRet); |
| |
| if (IsFloatBigger(fPopupRet, 0.0f)) { |
| m_bPopup = bPopup; |
| |
| CPDF_Rect rcWindow = CPWL_Wnd::GetWindowRect(); |
| m_rcOldWindow = rcWindow; |
| switch (nWhere) { |
| default: |
| case 0: |
| rcWindow.bottom -= fPopupRet; |
| break; |
| case 1: |
| rcWindow.top += fPopupRet; |
| break; |
| } |
| |
| m_nPopupWhere = nWhere; |
| Move(rcWindow, TRUE, TRUE); |
| } |
| } |
| } else { |
| m_bPopup = bPopup; |
| Move(m_rcOldWindow, TRUE, TRUE); |
| } |
| } |
| |
| FX_BOOL CPWL_ComboBox::OnKeyDown(FX_WORD nChar, FX_DWORD 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) { |
| FX_BOOL bExit = FALSE; |
| 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) { |
| FX_BOOL bExit = FALSE; |
| 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; |
| } |
| |
| FX_BOOL CPWL_ComboBox::OnChar(FX_WORD nChar, FX_DWORD nFlag) { |
| if (!m_pList) |
| return FALSE; |
| |
| if (!m_pEdit) |
| return FALSE; |
| |
| m_nSelectItem = -1; |
| if (HasFlag(PCBS_ALLOWCUSTOMTEXT)) |
| return m_pEdit->OnChar(nChar, nFlag); |
| |
| FX_BOOL bExit = FALSE; |
| return m_pList->OnCharWithExit(nChar, bExit, nFlag) ? bExit : FALSE; |
| } |
| |
| void CPWL_ComboBox::OnNotify(CPWL_Wnd* pWnd, |
| FX_DWORD 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; |
| } |
| } |
| } |
| |
| 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(); |
| } |
| |
| FX_BOOL CPWL_ComboBox::IsModified() const { |
| return m_pEdit->IsModified(); |
| } |
| |
| 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); |
| } |