diff options
Diffstat (limited to 'xfa/fwl/cfwl_combobox.cpp')
| -rw-r--r-- | xfa/fwl/cfwl_combobox.cpp | 1078 |
1 files changed, 1078 insertions, 0 deletions
diff --git a/xfa/fwl/cfwl_combobox.cpp b/xfa/fwl/cfwl_combobox.cpp new file mode 100644 index 0000000000..90366979f4 --- /dev/null +++ b/xfa/fwl/cfwl_combobox.cpp @@ -0,0 +1,1078 @@ +// 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 "xfa/fwl/cfwl_combobox.h" + +#include <algorithm> +#include <memory> +#include <utility> + +#include "third_party/base/ptr_util.h" +#include "xfa/fde/cfde_txtedtengine.h" +#include "xfa/fde/tto/fde_textout.h" +#include "xfa/fwl/cfwl_app.h" +#include "xfa/fwl/cfwl_event.h" +#include "xfa/fwl/cfwl_eventselectchanged.h" +#include "xfa/fwl/cfwl_eventtextchanged.h" +#include "xfa/fwl/cfwl_formproxy.h" +#include "xfa/fwl/cfwl_listbox.h" +#include "xfa/fwl/cfwl_messagekey.h" +#include "xfa/fwl/cfwl_messagekillfocus.h" +#include "xfa/fwl/cfwl_messagemouse.h" +#include "xfa/fwl/cfwl_messagesetfocus.h" +#include "xfa/fwl/cfwl_notedriver.h" +#include "xfa/fwl/cfwl_themebackground.h" +#include "xfa/fwl/cfwl_themepart.h" +#include "xfa/fwl/cfwl_themetext.h" +#include "xfa/fwl/cfwl_widgetmgr.h" +#include "xfa/fwl/ifwl_themeprovider.h" + +CFWL_ComboBox::CFWL_ComboBox(const CFWL_App* app) + : CFWL_Widget(app, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr), + m_pComboBoxProxy(nullptr), + m_bLButtonDown(false), + m_iCurSel(-1), + m_iBtnState(CFWL_PartState_Normal), + m_fComboFormHandler(0) { + m_rtClient.Reset(); + m_rtBtn.Reset(); + m_rtHandler.Reset(); + + if (m_pWidgetMgr->IsFormDisabled()) { + DisForm_InitComboList(); + DisForm_InitComboEdit(); + return; + } + + auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); + prop->m_pThemeProvider = m_pProperties->m_pThemeProvider; + prop->m_dwStyles |= FWL_WGTSTYLE_Border | FWL_WGTSTYLE_VScroll; + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_ListItemIconText) + prop->m_dwStyleExes |= FWL_STYLEEXT_LTB_Icon; + m_pListBox = + pdfium::MakeUnique<CFWL_ComboList>(m_pOwnerApp, std::move(prop), this); + + if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_DropDown) && !m_pEdit) { + m_pEdit.reset(new CFWL_ComboEdit( + m_pOwnerApp, pdfium::MakeUnique<CFWL_WidgetProperties>(), this)); + m_pEdit->SetOuter(this); + } + if (m_pEdit) + m_pEdit->SetParent(this); + + SetStates(m_pProperties->m_dwStates); +} + +CFWL_ComboBox::~CFWL_ComboBox() {} + +FWL_Type CFWL_ComboBox::GetClassID() const { + return FWL_Type::ComboBox; +} + +void CFWL_ComboBox::AddString(const CFX_WideStringC& wsText) { + m_pListBox->AddString(wsText); +} + +bool CFWL_ComboBox::RemoveAt(int32_t iIndex) { + return m_pListBox->RemoveAt(iIndex); +} + +void CFWL_ComboBox::RemoveAll() { + m_pListBox->DeleteAll(); +} + +void CFWL_ComboBox::ModifyStylesEx(uint32_t dwStylesExAdded, + uint32_t dwStylesExRemoved) { + if (m_pWidgetMgr->IsFormDisabled()) { + DisForm_ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved); + return; + } + + bool bAddDropDown = !!(dwStylesExAdded & FWL_STYLEEXT_CMB_DropDown); + bool bRemoveDropDown = !!(dwStylesExRemoved & FWL_STYLEEXT_CMB_DropDown); + if (bAddDropDown && !m_pEdit) { + m_pEdit = pdfium::MakeUnique<CFWL_ComboEdit>( + m_pOwnerApp, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr); + m_pEdit->SetOuter(this); + m_pEdit->SetParent(this); + } else if (bRemoveDropDown && m_pEdit) { + m_pEdit->SetStates(FWL_WGTSTATE_Invisible); + } + CFWL_Widget::ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved); +} + +void CFWL_ComboBox::Update() { + if (m_pWidgetMgr->IsFormDisabled()) { + DisForm_Update(); + return; + } + if (IsLocked()) + return; + + ResetTheme(); + if (IsDropDownStyle() && m_pEdit) + ResetEditAlignment(); + if (!m_pProperties->m_pThemeProvider) + m_pProperties->m_pThemeProvider = GetAvailableTheme(); + + Layout(); + CFWL_ThemePart part; + part.m_pWidget = this; + m_fComboFormHandler = + *static_cast<FX_FLOAT*>(m_pProperties->m_pThemeProvider->GetCapacity( + &part, CFWL_WidgetCapacity::ComboFormHandler)); +} + +FWL_WidgetHit CFWL_ComboBox::HitTest(FX_FLOAT fx, FX_FLOAT fy) { + if (m_pWidgetMgr->IsFormDisabled()) + return DisForm_HitTest(fx, fy); + return CFWL_Widget::HitTest(fx, fy); +} + +void CFWL_ComboBox::DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + if (m_pWidgetMgr->IsFormDisabled()) { + DisForm_DrawWidget(pGraphics, pMatrix); + return; + } + + if (!pGraphics) + return; + if (!m_pProperties->m_pThemeProvider) + return; + + IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; + if (HasBorder()) + DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix); + if (HasEdge()) + DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix); + + if (!IsDropDownStyle()) { + CFX_RectF rtTextBk(m_rtClient); + rtTextBk.width -= m_rtBtn.width; + + CFWL_ThemeBackground param; + param.m_pWidget = this; + param.m_iPart = CFWL_Part::Background; + param.m_pGraphics = pGraphics; + if (pMatrix) + param.m_matrix.Concat(*pMatrix); + param.m_rtPart = rtTextBk; + + if (m_iCurSel >= 0) { + if (void* p = m_pListBox->GetItemData( + m_pListBox.get(), + m_pListBox->GetItem(m_pListBox.get(), m_iCurSel))) { + param.m_pData = p; + } + } + + if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) { + param.m_dwStates = CFWL_PartState_Disabled; + } else if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) && + (m_iCurSel >= 0)) { + param.m_dwStates = CFWL_PartState_Selected; + } else { + param.m_dwStates = CFWL_PartState_Normal; + } + pTheme->DrawBackground(¶m); + + if (m_iCurSel >= 0) { + if (!m_pListBox) + return; + + CFWL_ListItem* hItem = m_pListBox->GetItem(this, m_iCurSel); + CFX_WideString wsText = m_pListBox->GetDataProviderItemText(hItem); + + CFWL_ThemeText theme_text; + theme_text.m_pWidget = this; + theme_text.m_iPart = CFWL_Part::Caption; + theme_text.m_dwStates = m_iBtnState; + theme_text.m_pGraphics = pGraphics; + theme_text.m_matrix.Concat(*pMatrix); + theme_text.m_rtPart = rtTextBk; + theme_text.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) + ? CFWL_PartState_Selected + : CFWL_PartState_Normal; + theme_text.m_wsText = wsText; + theme_text.m_dwTTOStyles = FDE_TTOSTYLE_SingleLine; + theme_text.m_iTTOAlign = FDE_TTOALIGNMENT_CenterLeft; + pTheme->DrawText(&theme_text); + } + } + + CFWL_ThemeBackground param; + param.m_pWidget = this; + param.m_iPart = CFWL_Part::DropDownButton; + param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? CFWL_PartState_Disabled + : m_iBtnState; + param.m_pGraphics = pGraphics; + param.m_matrix.Concat(*pMatrix); + param.m_rtPart = m_rtBtn; + pTheme->DrawBackground(¶m); +} + +void CFWL_ComboBox::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) { + if (!pThemeProvider) + return; + + m_pProperties->m_pThemeProvider = pThemeProvider; + if (m_pListBox) + m_pListBox->SetThemeProvider(pThemeProvider); + if (m_pEdit) + m_pEdit->SetThemeProvider(pThemeProvider); +} + +CFX_WideString CFWL_ComboBox::GetTextByIndex(int32_t iIndex) const { + CFWL_ListItem* pItem = static_cast<CFWL_ListItem*>( + m_pListBox->GetItem(m_pListBox.get(), iIndex)); + return pItem ? pItem->m_wsText : L""; +} + +void CFWL_ComboBox::SetCurSel(int32_t iSel) { + int32_t iCount = m_pListBox->CountItems(nullptr); + bool bClearSel = iSel < 0 || iSel >= iCount; + if (IsDropDownStyle() && m_pEdit) { + if (bClearSel) { + m_pEdit->SetText(CFX_WideString()); + } else { + CFWL_ListItem* hItem = m_pListBox->GetItem(this, iSel); + CFX_WideString wsText = m_pListBox->GetDataProviderItemText(hItem); + m_pEdit->SetText(wsText); + } + m_pEdit->Update(); + } + m_iCurSel = bClearSel ? -1 : iSel; +} + +void CFWL_ComboBox::SetStates(uint32_t dwStates) { + if (IsDropDownStyle() && m_pEdit) + m_pEdit->SetStates(dwStates); + if (m_pListBox) + m_pListBox->SetStates(dwStates); + CFWL_Widget::SetStates(dwStates); +} + +void CFWL_ComboBox::RemoveStates(uint32_t dwStates) { + if (IsDropDownStyle() && m_pEdit) + m_pEdit->RemoveStates(dwStates); + if (m_pListBox) + m_pListBox->RemoveStates(dwStates); + CFWL_Widget::RemoveStates(dwStates); +} + +void CFWL_ComboBox::SetEditText(const CFX_WideString& wsText) { + if (!m_pEdit) + return; + + m_pEdit->SetText(wsText); + m_pEdit->Update(); +} + +CFX_WideString CFWL_ComboBox::GetEditText() const { + if (m_pEdit) + return m_pEdit->GetText(); + if (!m_pListBox) + return L""; + + CFWL_ListItem* hItem = m_pListBox->GetItem(this, m_iCurSel); + return m_pListBox->GetDataProviderItemText(hItem); +} + +void CFWL_ComboBox::OpenDropDownList(bool bActivate) { + ShowDropList(bActivate); +} + +CFX_RectF CFWL_ComboBox::GetBBox() const { + if (m_pWidgetMgr->IsFormDisabled()) + return DisForm_GetBBox(); + + CFX_RectF rect = m_pProperties->m_rtWidget; + if (!m_pListBox || !IsDropListVisible()) + return rect; + + CFX_RectF rtList = m_pListBox->GetWidgetRect(); + rtList.Offset(rect.left, rect.top); + rect.Union(rtList); + return rect; +} + +void CFWL_ComboBox::EditModifyStylesEx(uint32_t dwStylesExAdded, + uint32_t dwStylesExRemoved) { + if (m_pEdit) + m_pEdit->ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved); +} + +void CFWL_ComboBox::DrawStretchHandler(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + CFWL_ThemeBackground param; + param.m_pGraphics = pGraphics; + param.m_iPart = CFWL_Part::StretchHandler; + param.m_dwStates = CFWL_PartState_Normal; + param.m_pWidget = this; + if (pMatrix) + param.m_matrix.Concat(*pMatrix); + param.m_rtPart = m_rtHandler; + m_pProperties->m_pThemeProvider->DrawBackground(¶m); +} + +void CFWL_ComboBox::ShowDropList(bool bActivate) { + if (m_pWidgetMgr->IsFormDisabled()) + return DisForm_ShowDropList(bActivate); + if (IsDropListVisible() == bActivate) + return; + if (!m_pComboBoxProxy) + InitProxyForm(); + + m_pComboBoxProxy->Reset(); + if (!bActivate) { + m_pComboBoxProxy->EndDoModal(); + + m_bLButtonDown = false; + m_pListBox->SetNotifyOwner(true); + SetFocus(true); + return; + } + + m_pListBox->ChangeSelected(m_iCurSel); + ResetListItemAlignment(); + + uint32_t dwStyleAdd = m_pProperties->m_dwStyleExes & + (FWL_STYLEEXT_CMB_Sort | FWL_STYLEEXT_CMB_OwnerDraw); + m_pListBox->ModifyStylesEx(dwStyleAdd, 0); + m_rtList = m_pListBox->GetAutosizedWidgetRect(); + + CFX_RectF rtAnchor; + rtAnchor.Set(0, 0, m_pProperties->m_rtWidget.width, + m_pProperties->m_rtWidget.height); + + m_rtList.width = std::max(m_rtList.width, m_rtClient.width); + m_rtProxy = m_rtList; + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_ListDrag) + m_rtProxy.height += m_fComboFormHandler; + + GetPopupPos(0, m_rtProxy.height, rtAnchor, m_rtProxy); + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_ListDrag) { + FX_FLOAT fx = 0; + FX_FLOAT fy = m_rtClient.top + m_rtClient.height / 2; + TransformTo(nullptr, fx, fy); + + m_bUpFormHandler = fy > m_rtProxy.top; + if (m_bUpFormHandler) { + m_rtHandler.Set(0, 0, m_rtList.width, m_fComboFormHandler); + m_rtList.top = m_fComboFormHandler; + } else { + m_rtHandler.Set(0, m_rtList.height, m_rtList.width, m_fComboFormHandler); + } + } + m_pComboBoxProxy->SetWidgetRect(m_rtProxy); + m_pComboBoxProxy->Update(); + m_pListBox->SetWidgetRect(m_rtList); + m_pListBox->Update(); + + CFWL_Event ev(CFWL_Event::Type::PreDropDown, this); + DispatchEvent(&ev); + + m_fItemHeight = m_pListBox->GetItemHeight(); + m_pListBox->SetFocus(true); + m_pComboBoxProxy->DoModal(); + m_pListBox->SetFocus(false); +} + +void CFWL_ComboBox::MatchEditText() { + CFX_WideString wsText = m_pEdit->GetText(); + int32_t iMatch = m_pListBox->MatchItem(wsText); + if (iMatch != m_iCurSel) { + m_pListBox->ChangeSelected(iMatch); + if (iMatch >= 0) + SyncEditText(iMatch); + } else if (iMatch >= 0) { + m_pEdit->SetSelected(); + } + m_iCurSel = iMatch; +} + +void CFWL_ComboBox::SyncEditText(int32_t iListItem) { + CFWL_ListItem* hItem = m_pListBox->GetItem(this, iListItem); + CFX_WideString wsText = m_pListBox->GetDataProviderItemText(hItem); + m_pEdit->SetText(wsText); + m_pEdit->Update(); + m_pEdit->SetSelected(); +} + +void CFWL_ComboBox::Layout() { + if (m_pWidgetMgr->IsFormDisabled()) + return DisForm_Layout(); + + GetClientRect(m_rtClient); + FX_FLOAT* pFWidth = static_cast<FX_FLOAT*>( + GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); + if (!pFWidth) + return; + + FX_FLOAT fBtn = *pFWidth; + m_rtBtn.Set(m_rtClient.right() - fBtn, m_rtClient.top, fBtn, + m_rtClient.height); + if (!IsDropDownStyle() || !m_pEdit) + return; + + CFX_RectF rtEdit; + rtEdit.Set(m_rtClient.left, m_rtClient.top, m_rtClient.width - fBtn, + m_rtClient.height); + m_pEdit->SetWidgetRect(rtEdit); + + if (m_iCurSel >= 0) { + CFWL_ListItem* hItem = m_pListBox->GetItem(this, m_iCurSel); + CFX_WideString wsText = m_pListBox->GetDataProviderItemText(hItem); + m_pEdit->LockUpdate(); + m_pEdit->SetText(wsText); + m_pEdit->UnlockUpdate(); + } + m_pEdit->Update(); +} + +void CFWL_ComboBox::ResetTheme() { + IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; + if (!pTheme) { + pTheme = GetAvailableTheme(); + m_pProperties->m_pThemeProvider = pTheme; + } + if (m_pListBox && !m_pListBox->GetThemeProvider()) + m_pListBox->SetThemeProvider(pTheme); + if (m_pEdit && !m_pEdit->GetThemeProvider()) + m_pEdit->SetThemeProvider(pTheme); +} + +void CFWL_ComboBox::ResetEditAlignment() { + if (!m_pEdit) + return; + + uint32_t dwAdd = 0; + switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_EditHAlignMask) { + case FWL_STYLEEXT_CMB_EditHCenter: { + dwAdd |= FWL_STYLEEXT_EDT_HCenter; + break; + } + case FWL_STYLEEXT_CMB_EditHFar: { + dwAdd |= FWL_STYLEEXT_EDT_HFar; + break; + } + default: { dwAdd |= FWL_STYLEEXT_EDT_HNear; } + } + switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_EditVAlignMask) { + case FWL_STYLEEXT_CMB_EditVCenter: { + dwAdd |= FWL_STYLEEXT_EDT_VCenter; + break; + } + case FWL_STYLEEXT_CMB_EditVFar: { + dwAdd |= FWL_STYLEEXT_EDT_VFar; + break; + } + default: { + dwAdd |= FWL_STYLEEXT_EDT_VNear; + break; + } + } + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_EditJustified) + dwAdd |= FWL_STYLEEXT_EDT_Justified; + if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_EditDistributed) + dwAdd |= FWL_STYLEEXT_EDT_Distributed; + + m_pEdit->ModifyStylesEx(dwAdd, FWL_STYLEEXT_EDT_HAlignMask | + FWL_STYLEEXT_EDT_HAlignModeMask | + FWL_STYLEEXT_EDT_VAlignMask); +} + +void CFWL_ComboBox::ResetListItemAlignment() { + if (!m_pListBox) + return; + + uint32_t dwAdd = 0; + switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_ListItemAlignMask) { + case FWL_STYLEEXT_CMB_ListItemCenterAlign: { + dwAdd |= FWL_STYLEEXT_LTB_CenterAlign; + break; + } + case FWL_STYLEEXT_CMB_ListItemRightAlign: { + dwAdd |= FWL_STYLEEXT_LTB_RightAlign; + break; + } + default: { + dwAdd |= FWL_STYLEEXT_LTB_LeftAlign; + break; + } + } + m_pListBox->ModifyStylesEx(dwAdd, FWL_STYLEEXT_CMB_ListItemAlignMask); +} + +void CFWL_ComboBox::ProcessSelChanged(bool bLButtonUp) { + m_iCurSel = m_pListBox->GetItemIndex(this, m_pListBox->GetSelItem(0)); + if (!IsDropDownStyle()) { + Repaint(&m_rtClient); + return; + } + + CFWL_ListItem* hItem = m_pListBox->GetItem(this, m_iCurSel); + if (!hItem) + return; + + CFX_WideString wsText = m_pListBox->GetItemText(this, hItem); + if (m_pEdit) { + m_pEdit->SetText(wsText); + m_pEdit->Update(); + m_pEdit->SetSelected(); + } + + CFWL_EventSelectChanged ev(this); + ev.bLButtonUp = bLButtonUp; + DispatchEvent(&ev); +} + +void CFWL_ComboBox::InitProxyForm() { + if (m_pComboBoxProxy) + return; + if (!m_pListBox) + return; + + auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); + prop->m_pOwner = this; + prop->m_dwStyles = FWL_WGTSTYLE_Popup; + prop->m_dwStates = FWL_WGTSTATE_Invisible; + + // TODO(dsinclair): Does this leak? I don't see a delete, but I'm not sure + // if the SetParent call is going to transfer ownership. + m_pComboBoxProxy = new CFWL_ComboBoxProxy(this, m_pOwnerApp, std::move(prop), + m_pListBox.get()); + m_pListBox->SetParent(m_pComboBoxProxy); +} + +void CFWL_ComboBox::DisForm_InitComboList() { + if (m_pListBox) + return; + + auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); + prop->m_pParent = this; + prop->m_dwStyles = FWL_WGTSTYLE_Border | FWL_WGTSTYLE_VScroll; + prop->m_dwStates = FWL_WGTSTATE_Invisible; + prop->m_pThemeProvider = m_pProperties->m_pThemeProvider; + m_pListBox = + pdfium::MakeUnique<CFWL_ComboList>(m_pOwnerApp, std::move(prop), this); +} + +void CFWL_ComboBox::DisForm_InitComboEdit() { + if (m_pEdit) + return; + + auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>(); + prop->m_pParent = this; + prop->m_pThemeProvider = m_pProperties->m_pThemeProvider; + + m_pEdit = + pdfium::MakeUnique<CFWL_ComboEdit>(m_pOwnerApp, std::move(prop), this); + m_pEdit->SetOuter(this); +} + +void CFWL_ComboBox::DisForm_ShowDropList(bool bActivate) { + if (DisForm_IsDropListVisible() == bActivate) + return; + + if (bActivate) { + CFWL_Event preEvent(CFWL_Event::Type::PreDropDown, this); + DispatchEvent(&preEvent); + + CFWL_ComboList* pComboList = m_pListBox.get(); + int32_t iItems = pComboList->CountItems(nullptr); + if (iItems < 1) + return; + + ResetListItemAlignment(); + pComboList->ChangeSelected(m_iCurSel); + + FX_FLOAT fItemHeight = pComboList->CalcItemHeight(); + FX_FLOAT fBorder = GetBorderSize(true); + FX_FLOAT fPopupMin = 0.0f; + if (iItems > 3) + fPopupMin = fItemHeight * 3 + fBorder * 2; + + FX_FLOAT fPopupMax = fItemHeight * iItems + fBorder * 2; + CFX_RectF rtList; + rtList.left = m_rtClient.left; + rtList.width = m_pProperties->m_rtWidget.width; + rtList.top = 0; + rtList.height = 0; + GetPopupPos(fPopupMin, fPopupMax, m_pProperties->m_rtWidget, rtList); + + m_pListBox->SetWidgetRect(rtList); + m_pListBox->Update(); + } else { + SetFocus(true); + } + + if (bActivate) { + m_pListBox->RemoveStates(FWL_WGTSTATE_Invisible); + CFWL_Event postEvent(CFWL_Event::Type::PostDropDown, this); + DispatchEvent(&postEvent); + } else { + m_pListBox->SetStates(FWL_WGTSTATE_Invisible); + } + + CFX_RectF rect = m_pListBox->GetWidgetRect(); + rect.Inflate(2, 2); + Repaint(&rect); +} + +void CFWL_ComboBox::DisForm_ModifyStylesEx(uint32_t dwStylesExAdded, + uint32_t dwStylesExRemoved) { + if (!m_pEdit) + DisForm_InitComboEdit(); + + bool bAddDropDown = !!(dwStylesExAdded & FWL_STYLEEXT_CMB_DropDown); + bool bDelDropDown = !!(dwStylesExRemoved & FWL_STYLEEXT_CMB_DropDown); + + dwStylesExRemoved &= ~FWL_STYLEEXT_CMB_DropDown; + m_pProperties->m_dwStyleExes |= FWL_STYLEEXT_CMB_DropDown; + + if (bAddDropDown) + m_pEdit->ModifyStylesEx(0, FWL_STYLEEXT_EDT_ReadOnly); + else if (bDelDropDown) + m_pEdit->ModifyStylesEx(FWL_STYLEEXT_EDT_ReadOnly, 0); + CFWL_Widget::ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved); +} + +void CFWL_ComboBox::DisForm_Update() { + if (m_iLock) + return; + if (m_pEdit) + ResetEditAlignment(); + ResetTheme(); + Layout(); +} + +FWL_WidgetHit CFWL_ComboBox::DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy) { + CFX_RectF rect; + rect.Set(0, 0, m_pProperties->m_rtWidget.width - m_rtBtn.width, + m_pProperties->m_rtWidget.height); + if (rect.Contains(fx, fy)) + return FWL_WidgetHit::Edit; + if (m_rtBtn.Contains(fx, fy)) + return FWL_WidgetHit::Client; + if (DisForm_IsDropListVisible()) { + rect = m_pListBox->GetWidgetRect(); + if (rect.Contains(fx, fy)) + return FWL_WidgetHit::Client; + } + return FWL_WidgetHit::Unknown; +} + +void CFWL_ComboBox::DisForm_DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; + CFX_Matrix mtOrg; + mtOrg.Set(1, 0, 0, 1, 0, 0); + if (pMatrix) + mtOrg = *pMatrix; + + pGraphics->SaveGraphState(); + pGraphics->ConcatMatrix(&mtOrg); + if (!m_rtBtn.IsEmpty(0.1f)) { + CFWL_ThemeBackground param; + param.m_pWidget = this; + param.m_iPart = CFWL_Part::DropDownButton; + param.m_dwStates = m_iBtnState; + param.m_pGraphics = pGraphics; + param.m_rtPart = m_rtBtn; + pTheme->DrawBackground(¶m); + } + pGraphics->RestoreGraphState(); + + if (m_pEdit) { + CFX_RectF rtEdit = m_pEdit->GetWidgetRect(); + CFX_Matrix mt; + mt.Set(1, 0, 0, 1, rtEdit.left, rtEdit.top); + mt.Concat(mtOrg); + m_pEdit->DrawWidget(pGraphics, &mt); + } + if (m_pListBox && DisForm_IsDropListVisible()) { + CFX_RectF rtList = m_pListBox->GetWidgetRect(); + CFX_Matrix mt; + mt.Set(1, 0, 0, 1, rtList.left, rtList.top); + mt.Concat(mtOrg); + m_pListBox->DrawWidget(pGraphics, &mt); + } +} + +CFX_RectF CFWL_ComboBox::DisForm_GetBBox() const { + CFX_RectF rect = m_pProperties->m_rtWidget; + if (!m_pListBox || !DisForm_IsDropListVisible()) + return rect; + + CFX_RectF rtList = m_pListBox->GetWidgetRect(); + rtList.Offset(rect.left, rect.top); + rect.Union(rtList); + return rect; +} + +void CFWL_ComboBox::DisForm_Layout() { + GetClientRect(m_rtClient); + m_rtContent = m_rtClient; + FX_FLOAT* pFWidth = static_cast<FX_FLOAT*>( + GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); + if (!pFWidth) + return; + + FX_FLOAT borderWidth = 1; + FX_FLOAT fBtn = *pFWidth; + if (!(GetStylesEx() & FWL_STYLEEXT_CMB_ReadOnly)) { + m_rtBtn.Set(m_rtClient.right() - fBtn, m_rtClient.top + borderWidth, + fBtn - borderWidth, m_rtClient.height - 2 * borderWidth); + } + + CFX_RectF* pUIMargin = + static_cast<CFX_RectF*>(GetThemeCapacity(CFWL_WidgetCapacity::UIMargin)); + if (pUIMargin) { + m_rtContent.Deflate(pUIMargin->left, pUIMargin->top, pUIMargin->width, + pUIMargin->height); + } + + if (!IsDropDownStyle() || !m_pEdit) + return; + + CFX_RectF rtEdit; + rtEdit.Set(m_rtContent.left, m_rtContent.top, m_rtContent.width - fBtn, + m_rtContent.height); + m_pEdit->SetWidgetRect(rtEdit); + + if (m_iCurSel >= 0) { + CFWL_ListItem* hItem = m_pListBox->GetItem(this, m_iCurSel); + CFX_WideString wsText = m_pListBox->GetDataProviderItemText(hItem); + m_pEdit->LockUpdate(); + m_pEdit->SetText(wsText); + m_pEdit->UnlockUpdate(); + } + m_pEdit->Update(); +} + +void CFWL_ComboBox::OnProcessMessage(CFWL_Message* pMessage) { + if (m_pWidgetMgr->IsFormDisabled()) { + DisForm_OnProcessMessage(pMessage); + return; + } + if (!pMessage) + return; + + switch (pMessage->GetType()) { + case CFWL_Message::Type::SetFocus: + OnFocusChanged(pMessage, true); + break; + case CFWL_Message::Type::KillFocus: + OnFocusChanged(pMessage, false); + break; + case CFWL_Message::Type::Mouse: { + CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage); + switch (pMsg->m_dwCmd) { + case FWL_MouseCommand::LeftButtonDown: + OnLButtonDown(pMsg); + break; + case FWL_MouseCommand::LeftButtonUp: + OnLButtonUp(pMsg); + break; + case FWL_MouseCommand::Move: + OnMouseMove(pMsg); + break; + case FWL_MouseCommand::Leave: + OnMouseLeave(pMsg); + break; + default: + break; + } + break; + } + case CFWL_Message::Type::Key: + OnKey(static_cast<CFWL_MessageKey*>(pMessage)); + break; + default: + break; + } + + CFWL_Widget::OnProcessMessage(pMessage); +} + +void CFWL_ComboBox::OnProcessEvent(CFWL_Event* pEvent) { + CFWL_Event::Type type = pEvent->GetType(); + if (type == CFWL_Event::Type::Scroll) { + CFWL_EventScroll* pScrollEvent = static_cast<CFWL_EventScroll*>(pEvent); + CFWL_EventScroll pScrollEv(this); + pScrollEv.m_iScrollCode = pScrollEvent->m_iScrollCode; + pScrollEv.m_fPos = pScrollEvent->m_fPos; + DispatchEvent(&pScrollEv); + } else if (type == CFWL_Event::Type::TextChanged) { + CFWL_Event pTemp(CFWL_Event::Type::EditChanged, this); + DispatchEvent(&pTemp); + } +} + +void CFWL_ComboBox::OnDrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + DrawWidget(pGraphics, pMatrix); +} + +void CFWL_ComboBox::OnFocusChanged(CFWL_Message* pMsg, bool bSet) { + if (bSet) { + m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused; + if (IsDropDownStyle() && pMsg->m_pSrcTarget != m_pListBox.get()) { + if (!m_pEdit) + return; + m_pEdit->SetSelected(); + return; + } + + Repaint(&m_rtClient); + return; + } + + m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused; + if (!IsDropDownStyle() || pMsg->m_pDstTarget == m_pListBox.get()) { + Repaint(&m_rtClient); + return; + } + if (!m_pEdit) + return; + + m_pEdit->FlagFocus(false); + m_pEdit->ClearSelected(); +} + +void CFWL_ComboBox::OnLButtonDown(CFWL_MessageMouse* pMsg) { + if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + return; + + CFX_RectF& rtBtn = IsDropDownStyle() ? m_rtBtn : m_rtClient; + if (!rtBtn.Contains(pMsg->m_fx, pMsg->m_fy)) + return; + + if (IsDropDownStyle() && m_pEdit) + MatchEditText(); + + m_bLButtonDown = true; + m_iBtnState = CFWL_PartState_Pressed; + Repaint(&m_rtClient); + + ShowDropList(true); + m_iBtnState = CFWL_PartState_Normal; + Repaint(&m_rtClient); +} + +void CFWL_ComboBox::OnLButtonUp(CFWL_MessageMouse* pMsg) { + m_bLButtonDown = false; + if (m_rtBtn.Contains(pMsg->m_fx, pMsg->m_fy)) + m_iBtnState = CFWL_PartState_Hovered; + else + m_iBtnState = CFWL_PartState_Normal; + + Repaint(&m_rtBtn); +} + +void CFWL_ComboBox::OnMouseMove(CFWL_MessageMouse* pMsg) { + int32_t iOldState = m_iBtnState; + if (m_rtBtn.Contains(pMsg->m_fx, pMsg->m_fy)) { + m_iBtnState = + m_bLButtonDown ? CFWL_PartState_Pressed : CFWL_PartState_Hovered; + } else { + m_iBtnState = CFWL_PartState_Normal; + } + if ((iOldState != m_iBtnState) && + !((m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == + FWL_WGTSTATE_Disabled)) { + Repaint(&m_rtBtn); + } +} + +void CFWL_ComboBox::OnMouseLeave(CFWL_MessageMouse* pMsg) { + if (!IsDropListVisible() && + !((m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == + FWL_WGTSTATE_Disabled)) { + m_iBtnState = CFWL_PartState_Normal; + Repaint(&m_rtBtn); + } +} + +void CFWL_ComboBox::OnKey(CFWL_MessageKey* pMsg) { + uint32_t dwKeyCode = pMsg->m_dwKeyCode; + if (dwKeyCode == FWL_VKEY_Tab) + return; + if (pMsg->m_pDstTarget == this) + DoSubCtrlKey(pMsg); +} + +void CFWL_ComboBox::DoSubCtrlKey(CFWL_MessageKey* pMsg) { + uint32_t dwKeyCode = pMsg->m_dwKeyCode; + const bool bUp = dwKeyCode == FWL_VKEY_Up; + const bool bDown = dwKeyCode == FWL_VKEY_Down; + if (bUp || bDown) { + int32_t iCount = m_pListBox->CountItems(nullptr); + if (iCount < 1) + return; + + bool bMatchEqual = false; + int32_t iCurSel = m_iCurSel; + bool bDropDown = IsDropDownStyle(); + if (bDropDown && m_pEdit) { + CFX_WideString wsText = m_pEdit->GetText(); + iCurSel = m_pListBox->MatchItem(wsText); + if (iCurSel >= 0) { + CFWL_ListItem* hItem = m_pListBox->GetItem(this, iCurSel); + CFX_WideString wsTemp = m_pListBox->GetDataProviderItemText(hItem); + bMatchEqual = wsText == wsTemp; + } + } + if (iCurSel < 0) { + iCurSel = 0; + } else if (!bDropDown || bMatchEqual) { + if ((bUp && iCurSel == 0) || (bDown && iCurSel == iCount - 1)) + return; + if (bUp) + iCurSel--; + else + iCurSel++; + } + m_iCurSel = iCurSel; + if (bDropDown && m_pEdit) + SyncEditText(m_iCurSel); + else + Repaint(&m_rtClient); + return; + } + + if (IsDropDownStyle()) + m_pEdit->GetDelegate()->OnProcessMessage(pMsg); +} + +void CFWL_ComboBox::DisForm_OnProcessMessage(CFWL_Message* pMessage) { + if (!pMessage) + return; + + bool backDefault = true; + switch (pMessage->GetType()) { + case CFWL_Message::Type::SetFocus: { + backDefault = false; + DisForm_OnFocusChanged(pMessage, true); + break; + } + case CFWL_Message::Type::KillFocus: { + backDefault = false; + DisForm_OnFocusChanged(pMessage, false); + break; + } + case CFWL_Message::Type::Mouse: { + backDefault = false; + CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage); + switch (pMsg->m_dwCmd) { + case FWL_MouseCommand::LeftButtonDown: + DisForm_OnLButtonDown(pMsg); + break; + case FWL_MouseCommand::LeftButtonUp: + OnLButtonUp(pMsg); + break; + default: + break; + } + break; + } + case CFWL_Message::Type::Key: { + backDefault = false; + CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage); + if (pKey->m_dwCmd == FWL_KeyCommand::KeyUp) + break; + if (DisForm_IsDropListVisible() && + pKey->m_dwCmd == FWL_KeyCommand::KeyDown) { + bool bListKey = pKey->m_dwKeyCode == FWL_VKEY_Up || + pKey->m_dwKeyCode == FWL_VKEY_Down || + pKey->m_dwKeyCode == FWL_VKEY_Return || + pKey->m_dwKeyCode == FWL_VKEY_Escape; + if (bListKey) { + m_pListBox->GetDelegate()->OnProcessMessage(pMessage); + break; + } + } + DisForm_OnKey(pKey); + break; + } + default: + break; + } + if (backDefault) + CFWL_Widget::OnProcessMessage(pMessage); +} + +void CFWL_ComboBox::DisForm_OnLButtonDown(CFWL_MessageMouse* pMsg) { + bool bDropDown = DisForm_IsDropListVisible(); + CFX_RectF& rtBtn = bDropDown ? m_rtBtn : m_rtClient; + if (!rtBtn.Contains(pMsg->m_fx, pMsg->m_fy)) + return; + + if (DisForm_IsDropListVisible()) { + DisForm_ShowDropList(false); + return; + } + if (m_pEdit) + MatchEditText(); + DisForm_ShowDropList(true); +} + +void CFWL_ComboBox::DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet) { + if (bSet) { + m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused; + if ((m_pEdit->GetStates() & FWL_WGTSTATE_Focused) == 0) { + CFWL_MessageSetFocus msg(nullptr, m_pEdit.get()); + m_pEdit->GetDelegate()->OnProcessMessage(&msg); + } + } else { + m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused; + DisForm_ShowDropList(false); + CFWL_MessageKillFocus msg(m_pEdit.get()); + m_pEdit->GetDelegate()->OnProcessMessage(&msg); + } +} + +void CFWL_ComboBox::DisForm_OnKey(CFWL_MessageKey* pMsg) { + uint32_t dwKeyCode = pMsg->m_dwKeyCode; + const bool bUp = dwKeyCode == FWL_VKEY_Up; + const bool bDown = dwKeyCode == FWL_VKEY_Down; + if (bUp || bDown) { + CFWL_ComboList* pComboList = m_pListBox.get(); + int32_t iCount = pComboList->CountItems(nullptr); + if (iCount < 1) + return; + + bool bMatchEqual = false; + int32_t iCurSel = m_iCurSel; + if (m_pEdit) { + CFX_WideString wsText = m_pEdit->GetText(); + iCurSel = pComboList->MatchItem(wsText); + if (iCurSel >= 0) { + CFWL_ListItem* item = m_pListBox->GetSelItem(iCurSel); + CFX_WideString wsTemp = m_pListBox->GetDataProviderItemText(item); + bMatchEqual = wsText == wsTemp; + } + } + if (iCurSel < 0) { + iCurSel = 0; + } else if (bMatchEqual) { + if ((bUp && iCurSel == 0) || (bDown && iCurSel == iCount - 1)) + return; + if (bUp) + iCurSel--; + else + iCurSel++; + } + m_iCurSel = iCurSel; + SyncEditText(m_iCurSel); + return; + } + if (m_pEdit) + m_pEdit->GetDelegate()->OnProcessMessage(pMsg); +} |