diff options
Diffstat (limited to 'fpdfsdk/pwl/cpwl_combo_box.cpp')
| -rw-r--r-- | fpdfsdk/pwl/cpwl_combo_box.cpp | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/fpdfsdk/pwl/cpwl_combo_box.cpp b/fpdfsdk/pwl/cpwl_combo_box.cpp new file mode 100644 index 0000000000..9514e55646 --- /dev/null +++ b/fpdfsdk/pwl/cpwl_combo_box.cpp @@ -0,0 +1,541 @@ +// 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/pwl/cpwl_combo_box.h" + +#include <algorithm> +#include <sstream> + +#include "core/fxge/cfx_pathdata.h" +#include "core/fxge/cfx_renderdevice.h" +#include "fpdfsdk/pwl/cpwl_edit.h" +#include "fpdfsdk/pwl/cpwl_edit_ctrl.h" +#include "fpdfsdk/pwl/cpwl_list_box.h" +#include "fpdfsdk/pwl/cpwl_list_impl.h" +#include "fpdfsdk/pwl/cpwl_wnd.h" +#include "public/fpdf_fwlevent.h" + +namespace { + +constexpr float kDefaultFontSize = 12.0f; +constexpr float kTriangleHalfLength = 3.0f; + +} // namespace + +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->NotifyLButtonUp(this, point); + + return !OnNotifySelectionChanged(false, nFlag); +} + +bool CPWL_CBListBox::IsMovementKey(uint16_t nChar) const { + 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: + return true; + default: + return false; + } +} + +bool CPWL_CBListBox::OnMovementKeyDown(uint16_t nChar, uint32_t nFlag) { + ASSERT(IsMovementKey(nChar)); + + 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; + } + return OnNotifySelectionChanged(true, nFlag); +} + +bool CPWL_CBListBox::IsChar(uint16_t nChar, uint32_t nFlag) const { + return m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); +} + +bool CPWL_CBListBox::OnCharNotify(uint16_t nChar, uint32_t nFlag) { + if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetParentWindow()) + pComboBox->SetSelectText(); + + return OnNotifySelectionChanged(true, nFlag); +} + +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()) + return; + + CFX_PointF ptCenter = GetCenterPoint(); + + CFX_PointF pt1(ptCenter.x - kTriangleHalfLength, + ptCenter.y + kTriangleHalfLength * 0.5f); + CFX_PointF pt2(ptCenter.x + kTriangleHalfLength, + ptCenter.y + kTriangleHalfLength * 0.5f); + CFX_PointF pt3(ptCenter.x, ptCenter.y - kTriangleHalfLength * 0.5f); + + if (IsFloatBigger(rectWnd.right - rectWnd.left, kTriangleHalfLength * 2) && + IsFloatBigger(rectWnd.top - rectWnd.bottom, kTriangleHalfLength)) { + 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->NotifyLButtonDown(this, point); + + 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() {} + +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::OnDestroy() { + // Until cleanup takes place in the virtual destructor for CPWL_Wnd + // subclasses, implement the virtual OnDestroy method that does the + // cleanup first, then invokes the superclass OnDestroy ... gee, + // like a dtor would. + m_pList.Release(); + m_pButton.Release(); + m_pEdit.Release(); + CPWL_Wnd::OnDestroy(); +} + +void CPWL_ComboBox::SetFocus() { + if (m_pEdit) + m_pEdit->SetFocus(); +} + +void CPWL_ComboBox::KillFocus() { + SetPopup(false); + CPWL_Wnd::KillFocus(); +} + +CFX_WideString CPWL_ComboBox::GetSelectedText() { + if (m_pEdit) + return m_pEdit->GetSelectedText(); + + return CFX_WideString(); +} + +void CPWL_ComboBox::DeleteSelectedText() { + if (m_pEdit) + m_pEdit->DeleteSelectedText(); +} + +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::SetEditSelection(int32_t nStartChar, int32_t nEndChar) { + if (m_pEdit) + m_pEdit->SetSelection(nStartChar, nEndChar); +} + +void CPWL_ComboBox::GetEditSelection(int32_t& nStartChar, + int32_t& nEndChar) const { + nStartChar = -1; + nEndChar = -1; + + if (m_pEdit) + m_pEdit->GetSelection(nStartChar, nEndChar); +} + +void CPWL_ComboBox::ClearSelection() { + if (m_pEdit) + m_pEdit->ClearSelection(); +} + +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_Edit(); + 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(); + 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 = CFX_Color(COLORTYPE_RGB, 220.0f / 255.0f, + 220.0f / 255.0f, 220.0f / 255.0f); + 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(); + + if (cp.dwFlags & PWS_AUTOFONTSIZE) + lcp.fFontSize = kDefaultFontSize; + 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 + if (m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), 0)) + 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 + m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), 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) { +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + if (m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), nFlag)) + return false; + if (m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), nFlag)) + return false; + } +#endif // PDF_ENABLE_XFA + if (m_pList->IsMovementKey(nChar)) { + if (m_pList->OnMovementKeyDown(nChar, nFlag)) + return false; + SetSelectText(); + } + } + return true; + case FWL_VKEY_Down: + if (m_pList->GetCurSel() < m_pList->GetCount() - 1) { +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + if (m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), nFlag)) + return false; + if (m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), nFlag)) + return false; + } +#endif // PDF_ENABLE_XFA + if (m_pList->IsMovementKey(nChar)) { + if (m_pList->OnMovementKeyDown(nChar, nFlag)) + 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); + +#ifdef PDF_ENABLE_XFA + if (m_pFillerNotify) { + if (m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), nFlag)) + return false; + if (m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), nFlag)) + return false; + } +#endif // PDF_ENABLE_XFA + if (!m_pList->IsChar(nChar, nFlag)) + return false; + return m_pList->OnCharNotify(nChar, nFlag); +} + +void CPWL_ComboBox::NotifyLButtonDown(CPWL_Wnd* child, const CFX_PointF& pos) { + if (child == m_pButton) + SetPopup(!m_bPopup); +} + +void CPWL_ComboBox::NotifyLButtonUp(CPWL_Wnd* child, const CFX_PointF& pos) { + if (!m_pEdit || !m_pList || child != m_pList) + return; + + SetSelectText(); + SelectAll(); + m_pEdit->SetFocus(); + SetPopup(false); +} + +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); +} |