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PL286/external/pdfium/xfa/fwl/cfwl_edit.cpp

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// 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_edit.h"
#include <algorithm>
#include <memory>
#include <utility>
#include <vector>
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
#include "xfa/fde/cfde_txtedtengine.h"
#include "xfa/fde/fde_gedevice.h"
#include "xfa/fde/fde_render.h"
#include "xfa/fde/ifde_txtedtpage.h"
#include "xfa/fgas/font/cfgas_gefont.h"
#include "xfa/fwl/cfwl_app.h"
#include "xfa/fwl/cfwl_caret.h"
#include "xfa/fwl/cfwl_event.h"
#include "xfa/fwl/cfwl_eventcheckword.h"
#include "xfa/fwl/cfwl_eventtextchanged.h"
#include "xfa/fwl/cfwl_eventvalidate.h"
#include "xfa/fwl/cfwl_messagekey.h"
#include "xfa/fwl/cfwl_messagemouse.h"
#include "xfa/fwl/cfwl_themebackground.h"
#include "xfa/fwl/cfwl_themepart.h"
#include "xfa/fwl/cfwl_widgetmgr.h"
#include "xfa/fwl/ifwl_themeprovider.h"
#include "xfa/fxfa/xfa_ffdoc.h"
#include "xfa/fxfa/xfa_ffwidget.h"
#include "xfa/fxgraphics/cfx_path.h"
namespace {
const int kEditMargin = 3;
bool FX_EDIT_ISLATINWORD(FX_WCHAR c) {
return c == 0x2D || (c <= 0x005A && c >= 0x0041) ||
(c <= 0x007A && c >= 0x0061) || (c <= 0x02AF && c >= 0x00C0) ||
c == 0x0027;
}
void AddSquigglyPath(CFX_Path* pPathData,
FX_FLOAT fStartX,
FX_FLOAT fEndX,
FX_FLOAT fY,
FX_FLOAT fStep) {
pPathData->MoveTo(CFX_PointF(fStartX, fY));
int i = 1;
for (FX_FLOAT fx = fStartX + fStep; fx < fEndX; fx += fStep, ++i)
pPathData->LineTo(CFX_PointF(fx, fY + (i & 1) * fStep));
}
} // namespace
CFWL_Edit::CFWL_Edit(const CFWL_App* app,
std::unique_ptr<CFWL_WidgetProperties> properties,
CFWL_Widget* pOuter)
: CFWL_Widget(app, std::move(properties), pOuter),
m_fVAlignOffset(0.0f),
m_fScrollOffsetX(0.0f),
m_fScrollOffsetY(0.0f),
m_bLButtonDown(false),
m_nSelStart(0),
m_nLimit(-1),
m_fFontSize(0),
m_bSetRange(false),
m_iMax(0xFFFFFFF),
m_iCurRecord(-1),
m_iMaxRecord(128) {
m_rtClient.Reset();
m_rtEngine.Reset();
m_rtStatic.Reset();
InitCaret();
}
CFWL_Edit::~CFWL_Edit() {
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
HideCaret(nullptr);
ClearRecord();
}
FWL_Type CFWL_Edit::GetClassID() const {
return FWL_Type::Edit;
}
CFX_RectF CFWL_Edit::GetWidgetRect() {
CFX_RectF rect = m_pProperties->m_rtWidget;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
IFWL_ThemeProvider* theme = GetAvailableTheme();
float scrollbarWidth = theme ? theme->GetScrollBarWidth() : 0.0f;
if (IsShowScrollBar(true)) {
rect.width += scrollbarWidth;
rect.width += kEditMargin;
}
if (IsShowScrollBar(false)) {
rect.height += scrollbarWidth;
rect.height += kEditMargin;
}
}
return rect;
}
CFX_RectF CFWL_Edit::GetAutosizedWidgetRect() {
CFX_RectF rect;
if (m_EdtEngine.GetTextLength() > 0) {
CFX_SizeF sz = CalcTextSize(
m_EdtEngine.GetText(0, -1), m_pProperties->m_pThemeProvider,
!!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_MultiLine));
rect = CFX_RectF(0, 0, sz);
}
InflateWidgetRect(rect);
return rect;
}
void CFWL_Edit::SetStates(uint32_t dwStates) {
if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Invisible) ||
(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)) {
HideCaret(nullptr);
}
CFWL_Widget::SetStates(dwStates);
}
void CFWL_Edit::Update() {
if (IsLocked())
return;
if (!m_pProperties->m_pThemeProvider)
m_pProperties->m_pThemeProvider = GetAvailableTheme();
Layout();
if (m_rtClient.IsEmpty())
return;
UpdateEditEngine();
UpdateVAlignment();
UpdateScroll();
InitCaret();
}
FWL_WidgetHit CFWL_Edit::HitTest(const CFX_PointF& point) {
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
if (IsShowScrollBar(true)) {
if (m_pVertScrollBar->GetWidgetRect().Contains(point))
return FWL_WidgetHit::VScrollBar;
}
if (IsShowScrollBar(false)) {
if (m_pHorzScrollBar->GetWidgetRect().Contains(point))
return FWL_WidgetHit::HScrollBar;
}
}
if (m_rtClient.Contains(point))
return FWL_WidgetHit::Edit;
return FWL_WidgetHit::Unknown;
}
void CFWL_Edit::AddSpellCheckObj(CFX_Path& PathData,
int32_t nStart,
int32_t nCount,
FX_FLOAT fOffSetX,
FX_FLOAT fOffSetY) {
FX_FLOAT fStartX = 0.0f;
FX_FLOAT fEndX = 0.0f;
FX_FLOAT fY = 0.0f;
FX_FLOAT fStep = 0.0f;
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
const FDE_TXTEDTPARAMS* txtEdtParams = m_EdtEngine.GetEditParams();
FX_FLOAT fAsent = static_cast<FX_FLOAT>(txtEdtParams->pFont->GetAscent()) *
txtEdtParams->fFontSize / 1000;
std::vector<CFX_RectF> rectArray;
pPage->CalcRangeRectArray(nStart, nCount, &rectArray);
for (const auto& rectText : rectArray) {
fY = rectText.top + fAsent + fOffSetY;
fStep = txtEdtParams->fFontSize / 16.0f;
fStartX = rectText.left + fOffSetX;
fEndX = fStartX + rectText.Width();
AddSquigglyPath(&PathData, fStartX, fEndX, fY, fStep);
}
}
void CFWL_Edit::DrawSpellCheck(CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix) {
pGraphics->SaveGraphState();
if (pMatrix)
pGraphics->ConcatMatrix(const_cast<CFX_Matrix*>(pMatrix));
CFX_Color crLine(0xFFFF0000);
CFWL_EventCheckWord checkWordEvent(this);
CFX_ByteString sLatinWord;
CFX_Path pathSpell;
int32_t nStart = 0;
FX_FLOAT fOffSetX = m_rtEngine.left - m_fScrollOffsetX;
FX_FLOAT fOffSetY = m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset;
CFX_WideString wsSpell = GetText();
int32_t nContentLen = wsSpell.GetLength();
for (int i = 0; i < nContentLen; i++) {
if (FX_EDIT_ISLATINWORD(wsSpell[i])) {
if (sLatinWord.IsEmpty())
nStart = i;
sLatinWord += (FX_CHAR)wsSpell[i];
continue;
}
checkWordEvent.bsWord = sLatinWord;
checkWordEvent.bCheckWord = true;
DispatchEvent(&checkWordEvent);
if (!sLatinWord.IsEmpty() && !checkWordEvent.bCheckWord) {
AddSpellCheckObj(pathSpell, nStart, sLatinWord.GetLength(), fOffSetX,
fOffSetY);
}
sLatinWord.clear();
}
checkWordEvent.bsWord = sLatinWord;
checkWordEvent.bCheckWord = true;
DispatchEvent(&checkWordEvent);
if (!sLatinWord.IsEmpty() && !checkWordEvent.bCheckWord) {
AddSpellCheckObj(pathSpell, nStart, sLatinWord.GetLength(), fOffSetX,
fOffSetY);
}
if (!pathSpell.IsEmpty()) {
CFX_RectF rtClip = m_rtEngine;
CFX_Matrix mt(1, 0, 0, 1, fOffSetX, fOffSetY);
if (pMatrix) {
pMatrix->TransformRect(rtClip);
mt.Concat(*pMatrix);
}
pGraphics->SetClipRect(rtClip);
pGraphics->SetStrokeColor(&crLine);
pGraphics->SetLineWidth(0);
pGraphics->StrokePath(&pathSpell, nullptr);
}
pGraphics->RestoreGraphState();
}
void CFWL_Edit::DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) {
if (!pGraphics)
return;
if (!m_pProperties->m_pThemeProvider)
return;
if (m_rtClient.IsEmpty())
return;
IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
if (!m_pWidgetMgr->IsFormDisabled())
DrawTextBk(pGraphics, pTheme, pMatrix);
DrawContent(pGraphics, pTheme, pMatrix);
if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) &&
!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly)) {
DrawSpellCheck(pGraphics, pMatrix);
}
if (HasBorder())
DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
}
void CFWL_Edit::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) {
if (!pThemeProvider)
return;
if (m_pHorzScrollBar)
m_pHorzScrollBar->SetThemeProvider(pThemeProvider);
if (m_pVertScrollBar)
m_pVertScrollBar->SetThemeProvider(pThemeProvider);
if (m_pCaret)
m_pCaret->SetThemeProvider(pThemeProvider);
m_pProperties->m_pThemeProvider = pThemeProvider;
}
void CFWL_Edit::SetText(const CFX_WideString& wsText) {
m_EdtEngine.SetText(wsText);
}
int32_t CFWL_Edit::GetTextLength() const {
return m_EdtEngine.GetTextLength();
}
CFX_WideString CFWL_Edit::GetText() const {
return m_EdtEngine.GetText(0, -1);
}
void CFWL_Edit::ClearText() {
m_EdtEngine.ClearText();
}
void CFWL_Edit::AddSelRange(int32_t nStart) {
m_EdtEngine.AddSelRange(nStart, -1);
}
int32_t CFWL_Edit::CountSelRanges() const {
return m_EdtEngine.CountSelRanges();
}
int32_t CFWL_Edit::GetSelRange(int32_t nIndex, int32_t* nStart) const {
return m_EdtEngine.GetSelRange(nIndex, nStart);
}
void CFWL_Edit::ClearSelections() {
m_EdtEngine.ClearSelection();
}
int32_t CFWL_Edit::GetLimit() const {
return m_nLimit;
}
void CFWL_Edit::SetLimit(int32_t nLimit) {
m_nLimit = nLimit;
m_EdtEngine.SetLimit(nLimit);
}
void CFWL_Edit::SetAliasChar(FX_WCHAR wAlias) {
m_EdtEngine.SetAliasChar(wAlias);
}
bool CFWL_Edit::Copy(CFX_WideString& wsCopy) {
int32_t nCount = m_EdtEngine.CountSelRanges();
if (nCount == 0)
return false;
wsCopy.clear();
int32_t nStart;
int32_t nLength;
for (int32_t i = 0; i < nCount; i++) {
nLength = m_EdtEngine.GetSelRange(i, &nStart);
wsCopy += m_EdtEngine.GetText(nStart, nLength);
}
return true;
}
bool CFWL_Edit::Cut(CFX_WideString& wsCut) {
int32_t nCount = m_EdtEngine.CountSelRanges();
if (nCount == 0)
return false;
wsCut.clear();
CFX_WideString wsTemp;
int32_t nStart, nLength;
for (int32_t i = 0; i < nCount; i++) {
nLength = m_EdtEngine.GetSelRange(i, &nStart);
wsTemp = m_EdtEngine.GetText(nStart, nLength);
wsCut += wsTemp;
wsTemp.clear();
}
m_EdtEngine.Delete(0);
return true;
}
bool CFWL_Edit::Paste(const CFX_WideString& wsPaste) {
int32_t nCaret = m_EdtEngine.GetCaretPos();
int32_t iError =
m_EdtEngine.Insert(nCaret, wsPaste.c_str(), wsPaste.GetLength());
if (iError < 0) {
ProcessInsertError(iError);
return false;
}
return true;
}
bool CFWL_Edit::Redo(const IFDE_TxtEdtDoRecord* pRecord) {
return m_EdtEngine.Redo(pRecord);
}
bool CFWL_Edit::Undo(const IFDE_TxtEdtDoRecord* pRecord) {
return m_EdtEngine.Undo(pRecord);
}
bool CFWL_Edit::Undo() {
if (!CanUndo())
return false;
return Undo(m_DoRecords[m_iCurRecord--].get());
}
bool CFWL_Edit::Redo() {
if (!CanRedo())
return false;
return Redo(m_DoRecords[++m_iCurRecord].get());
}
bool CFWL_Edit::CanUndo() {
return m_iCurRecord >= 0;
}
bool CFWL_Edit::CanRedo() {
return m_iCurRecord < pdfium::CollectionSize<int32_t>(m_DoRecords) - 1;
}
void CFWL_Edit::SetOuter(CFWL_Widget* pOuter) {
m_pOuter = pOuter;
}
void CFWL_Edit::OnCaretChanged() {
if (m_rtEngine.IsEmpty())
return;
if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)
return;
bool bRepaintContent = UpdateOffset();
UpdateCaret();
CFX_RectF rtInvalid;
bool bRepaintScroll = false;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_MultiLine) {
CFWL_ScrollBar* pScroll = UpdateScroll();
if (pScroll) {
rtInvalid = pScroll->GetWidgetRect();
bRepaintScroll = true;
}
}
if (bRepaintContent || bRepaintScroll) {
if (bRepaintContent)
rtInvalid.Union(m_rtEngine);
RepaintRect(rtInvalid);
}
}
void CFWL_Edit::OnTextChanged(const FDE_TXTEDT_TEXTCHANGE_INFO& ChangeInfo) {
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_VAlignMask)
UpdateVAlignment();
CFWL_EventTextChanged event(this);
event.wsPrevText = ChangeInfo.wsPrevText;
DispatchEvent(&event);
LayoutScrollBar();
RepaintRect(GetClientRect());
}
void CFWL_Edit::OnSelChanged() {
RepaintRect(GetClientRect());
}
bool CFWL_Edit::OnPageLoad(int32_t nPageIndex) {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(nPageIndex);
if (!pPage)
return false;
pPage->LoadPage(nullptr, nullptr);
return true;
}
bool CFWL_Edit::OnPageUnload(int32_t nPageIndex) {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(nPageIndex);
if (!pPage)
return false;
pPage->UnloadPage(nullptr);
return true;
}
void CFWL_Edit::OnAddDoRecord(std::unique_ptr<IFDE_TxtEdtDoRecord> pRecord) {
AddDoRecord(std::move(pRecord));
}
bool CFWL_Edit::OnValidate(const CFX_WideString& wsText) {
CFWL_Widget* pDst = GetOuter();
if (!pDst)
pDst = this;
CFWL_EventValidate event(this);
event.wsInsert = wsText;
event.bValidate = true;
DispatchEvent(&event);
return event.bValidate;
}
void CFWL_Edit::SetScrollOffset(FX_FLOAT fScrollOffset) {
m_fScrollOffsetY = fScrollOffset;
}
void CFWL_Edit::DrawTextBk(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix) {
CFWL_ThemeBackground param;
param.m_pWidget = this;
param.m_iPart = CFWL_Part::Background;
param.m_bStaticBackground = false;
param.m_dwStates = m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly
? CFWL_PartState_ReadOnly
: CFWL_PartState_Normal;
uint32_t dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled);
if (dwStates)
param.m_dwStates = CFWL_PartState_Disabled;
param.m_pGraphics = pGraphics;
param.m_matrix = *pMatrix;
param.m_rtPart = m_rtClient;
pTheme->DrawBackground(&param);
if (!IsShowScrollBar(true) || !IsShowScrollBar(false))
return;
CFX_RectF rtScroll = m_pHorzScrollBar->GetWidgetRect();
CFX_RectF rtStatic(m_rtClient.right() - rtScroll.height,
m_rtClient.bottom() - rtScroll.height, rtScroll.height,
rtScroll.height);
param.m_bStaticBackground = true;
param.m_bMaximize = true;
param.m_rtPart = rtStatic;
pTheme->DrawBackground(&param);
}
void CFWL_Edit::DrawContent(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix) {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return;
pGraphics->SaveGraphState();
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_CombText)
pGraphics->SaveGraphState();
CFX_RectF rtClip = m_rtEngine;
FX_FLOAT fOffSetX = m_rtEngine.left - m_fScrollOffsetX;
FX_FLOAT fOffSetY = m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset;
CFX_Matrix mt(1, 0, 0, 1, fOffSetX, fOffSetY);
if (pMatrix) {
pMatrix->TransformRect(rtClip);
mt.Concat(*pMatrix);
}
bool bShowSel = !!(m_pProperties->m_dwStates & FWL_WGTSTATE_Focused);
int32_t nSelCount = m_EdtEngine.CountSelRanges();
if (bShowSel && nSelCount > 0) {
int32_t nPageCharStart = pPage->GetCharStart();
int32_t nPageCharCount = pPage->GetCharCount();
int32_t nPageCharEnd = nPageCharStart + nPageCharCount - 1;
int32_t nCharCount;
int32_t nCharStart;
std::vector<CFX_RectF> rectArr;
for (int32_t i = 0; i < nSelCount; i++) {
nCharCount = m_EdtEngine.GetSelRange(i, &nCharStart);
int32_t nCharEnd = nCharStart + nCharCount - 1;
if (nCharEnd < nPageCharStart || nCharStart > nPageCharEnd)
continue;
int32_t nBgn = std::max(nCharStart, nPageCharStart);
int32_t nEnd = std::min(nCharEnd, nPageCharEnd);
pPage->CalcRangeRectArray(nBgn - nPageCharStart, nEnd - nBgn + 1,
&rectArr);
}
CFX_Path path;
for (auto& rect : rectArr) {
rect.left += fOffSetX;
rect.top += fOffSetY;
path.AddRectangle(rect.left, rect.top, rect.width, rect.height);
}
pGraphics->SetClipRect(rtClip);
CFWL_ThemeBackground param;
param.m_pGraphics = pGraphics;
param.m_matrix = *pMatrix;
param.m_pWidget = this;
param.m_iPart = CFWL_Part::Background;
param.m_pPath = &path;
pTheme->DrawBackground(&param);
}
CFX_RenderDevice* pRenderDev = pGraphics->GetRenderDevice();
if (!pRenderDev)
return;
std::unique_ptr<CFDE_RenderDevice> pRenderDevice(
new CFDE_RenderDevice(pRenderDev, false));
std::unique_ptr<CFDE_RenderContext> pRenderContext(new CFDE_RenderContext);
pRenderDevice->SetClipRect(rtClip);
pRenderContext->StartRender(pRenderDevice.get(), pPage, mt);
pRenderContext->DoRender(nullptr);
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_CombText) {
pGraphics->RestoreGraphState();
CFX_Path path;
int32_t iLimit = m_nLimit > 0 ? m_nLimit : 1;
FX_FLOAT fStep = m_rtEngine.width / iLimit;
FX_FLOAT fLeft = m_rtEngine.left + 1;
for (int32_t i = 1; i < iLimit; i++) {
fLeft += fStep;
path.AddLine(CFX_PointF(fLeft, m_rtClient.top),
CFX_PointF(fLeft, m_rtClient.bottom()));
}
CFWL_ThemeBackground param;
param.m_pGraphics = pGraphics;
param.m_matrix = *pMatrix;
param.m_pWidget = this;
param.m_iPart = CFWL_Part::CombTextLine;
param.m_pPath = &path;
pTheme->DrawBackground(&param);
}
pGraphics->RestoreGraphState();
}
void CFWL_Edit::UpdateEditEngine() {
UpdateEditParams();
UpdateEditLayout();
if (m_nLimit > -1)
m_EdtEngine.SetLimit(m_nLimit);
}
void CFWL_Edit::UpdateEditParams() {
FDE_TXTEDTPARAMS params;
params.nHorzScale = 100;
params.fPlateWidth = m_rtEngine.width;
params.fPlateHeight = m_rtEngine.height;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_CombText)
params.dwLayoutStyles |= FDE_TEXTEDITLAYOUT_CombText;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_LastLineHeight)
params.dwLayoutStyles |= FDE_TEXTEDITLAYOUT_LastLineHeight;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_Validate)
params.dwMode |= FDE_TEXTEDITMODE_Validate;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_Password)
params.dwMode |= FDE_TEXTEDITMODE_Password;
switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_HAlignMask) {
case FWL_STYLEEXT_EDT_HNear: {
params.dwAlignment |= FDE_TEXTEDITALIGN_Left;
break;
}
case FWL_STYLEEXT_EDT_HCenter: {
params.dwAlignment |= FDE_TEXTEDITALIGN_Center;
break;
}
case FWL_STYLEEXT_EDT_HFar: {
params.dwAlignment |= FDE_TEXTEDITALIGN_Right;
break;
}
default:
break;
}
switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_HAlignModeMask) {
case FWL_STYLEEXT_EDT_Justified: {
params.dwAlignment |= FDE_TEXTEDITALIGN_Justified;
break;
}
default: {
params.dwAlignment |= FDE_TEXTEDITALIGN_Normal;
break;
}
}
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_MultiLine) {
params.dwMode |= FDE_TEXTEDITMODE_MultiLines;
if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_AutoHScroll) == 0) {
params.dwMode |=
FDE_TEXTEDITMODE_AutoLineWrap | FDE_TEXTEDITMODE_LimitArea_Horz;
}
if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll) == 0 &&
(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_AutoVScroll) == 0) {
params.dwMode |= FDE_TEXTEDITMODE_LimitArea_Vert;
} else {
params.fPlateHeight = 0x00FFFFFF;
}
} else if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_AutoHScroll) ==
0) {
params.dwMode |= FDE_TEXTEDITMODE_LimitArea_Horz;
}
if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly) ||
(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)) {
params.dwMode |= FDE_TEXTEDITMODE_ReadOnly;
}
IFWL_ThemeProvider* theme = GetAvailableTheme();
CFWL_ThemePart part;
part.m_pWidget = this;
m_fFontSize = theme ? theme->GetFontSize(&part) : FWLTHEME_CAPACITY_FontSize;
if (!theme)
return;
params.dwFontColor = theme->GetTextColor(&part);
params.fLineSpace = theme->GetLineHeight(&part);
CFX_RetainPtr<CFGAS_GEFont> pFont = theme->GetFont(&part);
if (!pFont)
return;
params.pFont = pFont;
params.fFontSize = m_fFontSize;
params.nLineCount = (int32_t)(params.fPlateHeight / params.fLineSpace);
if (params.nLineCount <= 0)
params.nLineCount = 1;
params.fTabWidth = params.fFontSize * 1;
params.bTabEquidistant = true;
params.wLineBreakChar = L'\n';
params.nCharRotation = 0;
params.pEventSink = this;
m_EdtEngine.SetEditParams(params);
}
void CFWL_Edit::UpdateEditLayout() {
if (m_EdtEngine.GetTextLength() <= 0)
m_EdtEngine.SetTextByStream(nullptr);
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (pPage)
pPage->UnloadPage(nullptr);
m_EdtEngine.StartLayout();
m_EdtEngine.DoLayout(nullptr);
m_EdtEngine.EndLayout();
pPage = m_EdtEngine.GetPage(0);
if (pPage)
pPage->LoadPage(nullptr, nullptr);
}
bool CFWL_Edit::UpdateOffset() {
CFX_RectF rtCaret;
m_EdtEngine.GetCaretRect(rtCaret);
FX_FLOAT fOffSetX = m_rtEngine.left - m_fScrollOffsetX;
FX_FLOAT fOffSetY = m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset;
rtCaret.Offset(fOffSetX, fOffSetY);
const CFX_RectF& rtEidt = m_rtEngine;
if (rtEidt.Contains(rtCaret)) {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return false;
CFX_RectF rtFDE = pPage->GetContentsBox();
rtFDE.Offset(fOffSetX, fOffSetY);
if (rtFDE.right() < rtEidt.right() && m_fScrollOffsetX > 0) {
m_fScrollOffsetX += rtFDE.right() - rtEidt.right();
m_fScrollOffsetX = std::max(m_fScrollOffsetX, 0.0f);
}
if (rtFDE.bottom() < rtEidt.bottom() && m_fScrollOffsetY > 0) {
m_fScrollOffsetY += rtFDE.bottom() - rtEidt.bottom();
m_fScrollOffsetY = std::max(m_fScrollOffsetY, 0.0f);
}
return false;
}
FX_FLOAT offsetX = 0.0;
FX_FLOAT offsetY = 0.0;
if (rtCaret.left < rtEidt.left)
offsetX = rtCaret.left - rtEidt.left;
if (rtCaret.right() > rtEidt.right())
offsetX = rtCaret.right() - rtEidt.right();
if (rtCaret.top < rtEidt.top)
offsetY = rtCaret.top - rtEidt.top;
if (rtCaret.bottom() > rtEidt.bottom())
offsetY = rtCaret.bottom() - rtEidt.bottom();
m_fScrollOffsetX += offsetX;
m_fScrollOffsetY += offsetY;
if (m_fFontSize > m_rtEngine.height)
m_fScrollOffsetY = 0;
return true;
}
bool CFWL_Edit::UpdateOffset(CFWL_ScrollBar* pScrollBar, FX_FLOAT fPosChanged) {
if (pScrollBar == m_pHorzScrollBar.get())
m_fScrollOffsetX += fPosChanged;
else
m_fScrollOffsetY += fPosChanged;
return true;
}
void CFWL_Edit::UpdateVAlignment() {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return;
const CFX_RectF& rtFDE = pPage->GetContentsBox();
FX_FLOAT fOffsetY = 0.0f;
FX_FLOAT fSpaceAbove = 0.0f;
FX_FLOAT fSpaceBelow = 0.0f;
IFWL_ThemeProvider* theme = GetAvailableTheme();
if (theme) {
CFWL_ThemePart part;
part.m_pWidget = this;
CFX_SizeF pSpace = theme->GetSpaceAboveBelow(&part);
fSpaceAbove = pSpace.width;
fSpaceBelow = pSpace.height;
}
if (fSpaceAbove < 0.1f)
fSpaceAbove = 0;
if (fSpaceBelow < 0.1f)
fSpaceBelow = 0;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_VCenter) {
fOffsetY = (m_rtEngine.height - rtFDE.height) / 2;
if (fOffsetY < (fSpaceAbove + fSpaceBelow) / 2 &&
fSpaceAbove < fSpaceBelow) {
return;
}
fOffsetY += (fSpaceAbove - fSpaceBelow) / 2;
} else if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_VFar) {
fOffsetY = (m_rtEngine.height - rtFDE.height);
fOffsetY -= fSpaceBelow;
} else {
fOffsetY += fSpaceAbove;
}
m_fVAlignOffset = std::max(fOffsetY, 0.0f);
}
void CFWL_Edit::UpdateCaret() {
CFX_RectF rtFDE;
m_EdtEngine.GetCaretRect(rtFDE);
rtFDE.Offset(m_rtEngine.left - m_fScrollOffsetX,
m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset);
CFX_RectF rtCaret(rtFDE.left, rtFDE.top, rtFDE.width, rtFDE.height);
CFX_RectF rtClient = GetClientRect();
rtCaret.Intersect(rtClient);
if (rtCaret.left > rtClient.right()) {
FX_FLOAT right = rtCaret.right();
rtCaret.left = rtClient.right() - 1;
rtCaret.width = right - rtCaret.left;
}
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused && !rtCaret.IsEmpty())
ShowCaret(&rtCaret);
else
HideCaret(&rtCaret);
}
CFWL_ScrollBar* CFWL_Edit::UpdateScroll() {
bool bShowHorz =
m_pHorzScrollBar &&
((m_pHorzScrollBar->GetStates() & FWL_WGTSTATE_Invisible) == 0);
bool bShowVert =
m_pVertScrollBar &&
((m_pVertScrollBar->GetStates() & FWL_WGTSTATE_Invisible) == 0);
if (!bShowHorz && !bShowVert)
return nullptr;
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return nullptr;
const CFX_RectF& rtFDE = pPage->GetContentsBox();
CFWL_ScrollBar* pRepaint = nullptr;
if (bShowHorz) {
CFX_RectF rtScroll = m_pHorzScrollBar->GetWidgetRect();
if (rtScroll.width < rtFDE.width) {
m_pHorzScrollBar->LockUpdate();
FX_FLOAT fRange = rtFDE.width - rtScroll.width;
m_pHorzScrollBar->SetRange(0.0f, fRange);
FX_FLOAT fPos = std::min(std::max(m_fScrollOffsetX, 0.0f), fRange);
m_pHorzScrollBar->SetPos(fPos);
m_pHorzScrollBar->SetTrackPos(fPos);
m_pHorzScrollBar->SetPageSize(rtScroll.width);
m_pHorzScrollBar->SetStepSize(rtScroll.width / 10);
m_pHorzScrollBar->RemoveStates(FWL_WGTSTATE_Disabled);
m_pHorzScrollBar->UnlockUpdate();
m_pHorzScrollBar->Update();
pRepaint = m_pHorzScrollBar.get();
} else if ((m_pHorzScrollBar->GetStates() & FWL_WGTSTATE_Disabled) == 0) {
m_pHorzScrollBar->LockUpdate();
m_pHorzScrollBar->SetRange(0, -1);
m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Disabled);
m_pHorzScrollBar->UnlockUpdate();
m_pHorzScrollBar->Update();
pRepaint = m_pHorzScrollBar.get();
}
}
if (bShowVert) {
CFX_RectF rtScroll = m_pVertScrollBar->GetWidgetRect();
if (rtScroll.height < rtFDE.height) {
m_pVertScrollBar->LockUpdate();
FX_FLOAT fStep = m_EdtEngine.GetEditParams()->fLineSpace;
FX_FLOAT fRange = std::max(rtFDE.height - m_rtEngine.height, fStep);
m_pVertScrollBar->SetRange(0.0f, fRange);
FX_FLOAT fPos = std::min(std::max(m_fScrollOffsetY, 0.0f), fRange);
m_pVertScrollBar->SetPos(fPos);
m_pVertScrollBar->SetTrackPos(fPos);
m_pVertScrollBar->SetPageSize(rtScroll.height);
m_pVertScrollBar->SetStepSize(fStep);
m_pVertScrollBar->RemoveStates(FWL_WGTSTATE_Disabled);
m_pVertScrollBar->UnlockUpdate();
m_pVertScrollBar->Update();
pRepaint = m_pVertScrollBar.get();
} else if ((m_pVertScrollBar->GetStates() & FWL_WGTSTATE_Disabled) == 0) {
m_pVertScrollBar->LockUpdate();
m_pVertScrollBar->SetRange(0, -1);
m_pVertScrollBar->SetStates(FWL_WGTSTATE_Disabled);
m_pVertScrollBar->UnlockUpdate();
m_pVertScrollBar->Update();
pRepaint = m_pVertScrollBar.get();
}
}
return pRepaint;
}
bool CFWL_Edit::IsShowScrollBar(bool bVert) {
bool bShow =
(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ShowScrollbarFocus)
? (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) ==
FWL_WGTSTATE_Focused
: true;
if (bVert) {
return bShow && (m_pProperties->m_dwStyles & FWL_WGTSTYLE_VScroll) &&
(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_MultiLine) &&
IsContentHeightOverflow();
}
return false;
}
bool CFWL_Edit::IsContentHeightOverflow() {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return false;
return pPage->GetContentsBox().height > m_rtEngine.height + 1.0f;
}
int32_t CFWL_Edit::AddDoRecord(std::unique_ptr<IFDE_TxtEdtDoRecord> pRecord) {
int32_t nCount = pdfium::CollectionSize<int32_t>(m_DoRecords);
if (m_iCurRecord == nCount - 1) {
if (nCount == m_iMaxRecord) {
m_DoRecords.pop_front();
m_iCurRecord--;
}
} else {
m_DoRecords.erase(m_DoRecords.begin() + m_iCurRecord + 1,
m_DoRecords.end());
}
m_DoRecords.push_back(std::move(pRecord));
m_iCurRecord = pdfium::CollectionSize<int32_t>(m_DoRecords) - 1;
return m_iCurRecord;
}
void CFWL_Edit::Layout() {
m_rtClient = GetClientRect();
m_rtEngine = m_rtClient;
IFWL_ThemeProvider* theme = GetAvailableTheme();
if (!theme)
return;
FX_FLOAT fWidth = theme->GetScrollBarWidth();
CFWL_ThemePart part;
if (!m_pOuter) {
part.m_pWidget = this;
CFX_RectF pUIMargin = theme->GetUIMargin(&part);
m_rtEngine.Deflate(pUIMargin.left, pUIMargin.top, pUIMargin.width,
pUIMargin.height);
} else if (m_pOuter->GetClassID() == FWL_Type::DateTimePicker) {
part.m_pWidget = m_pOuter;
CFX_RectF pUIMargin = theme->GetUIMargin(&part);
m_rtEngine.Deflate(pUIMargin.left, pUIMargin.top, pUIMargin.width,
pUIMargin.height);
}
bool bShowVertScrollbar = IsShowScrollBar(true);
bool bShowHorzScrollbar = IsShowScrollBar(false);
if (bShowVertScrollbar) {
InitVerticalScrollBar();
CFX_RectF rtVertScr;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
rtVertScr = CFX_RectF(m_rtClient.right() + kEditMargin, m_rtClient.top,
fWidth, m_rtClient.height);
} else {
rtVertScr = CFX_RectF(m_rtClient.right() - fWidth, m_rtClient.top, fWidth,
m_rtClient.height);
if (bShowHorzScrollbar)
rtVertScr.height -= fWidth;
m_rtEngine.width -= fWidth;
}
m_pVertScrollBar->SetWidgetRect(rtVertScr);
m_pVertScrollBar->RemoveStates(FWL_WGTSTATE_Invisible);
m_pVertScrollBar->Update();
} else if (m_pVertScrollBar) {
m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible);
}
if (bShowHorzScrollbar) {
InitHorizontalScrollBar();
CFX_RectF rtHoriScr;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
rtHoriScr = CFX_RectF(m_rtClient.left, m_rtClient.bottom() + kEditMargin,
m_rtClient.width, fWidth);
} else {
rtHoriScr = CFX_RectF(m_rtClient.left, m_rtClient.bottom() - fWidth,
m_rtClient.width, fWidth);
if (bShowVertScrollbar)
rtHoriScr.width -= fWidth;
m_rtEngine.height -= fWidth;
}
m_pHorzScrollBar->SetWidgetRect(rtHoriScr);
m_pHorzScrollBar->RemoveStates(FWL_WGTSTATE_Invisible);
m_pHorzScrollBar->Update();
} else if (m_pHorzScrollBar) {
m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible);
}
}
void CFWL_Edit::LayoutScrollBar() {
if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ShowScrollbarFocus) ==
0) {
return;
}
bool bShowVertScrollbar = IsShowScrollBar(true);
bool bShowHorzScrollbar = IsShowScrollBar(false);
IFWL_ThemeProvider* theme = GetAvailableTheme();
FX_FLOAT fWidth = theme ? theme->GetScrollBarWidth() : 0;
if (bShowVertScrollbar) {
if (!m_pVertScrollBar) {
InitVerticalScrollBar();
CFX_RectF rtVertScr;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
rtVertScr = CFX_RectF(m_rtClient.right() + kEditMargin, m_rtClient.top,
fWidth, m_rtClient.height);
} else {
rtVertScr = CFX_RectF(m_rtClient.right() - fWidth, m_rtClient.top,
fWidth, m_rtClient.height);
if (bShowHorzScrollbar)
rtVertScr.height -= fWidth;
}
m_pVertScrollBar->SetWidgetRect(rtVertScr);
m_pVertScrollBar->Update();
}
m_pVertScrollBar->RemoveStates(FWL_WGTSTATE_Invisible);
} else if (m_pVertScrollBar) {
m_pVertScrollBar->SetStates(FWL_WGTSTATE_Invisible);
}
if (bShowHorzScrollbar) {
if (!m_pHorzScrollBar) {
InitHorizontalScrollBar();
CFX_RectF rtHoriScr;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
rtHoriScr =
CFX_RectF(m_rtClient.left, m_rtClient.bottom() + kEditMargin,
m_rtClient.width, fWidth);
} else {
rtHoriScr = CFX_RectF(m_rtClient.left, m_rtClient.bottom() - fWidth,
m_rtClient.width, fWidth);
if (bShowVertScrollbar)
rtHoriScr.width -= (fWidth);
}
m_pHorzScrollBar->SetWidgetRect(rtHoriScr);
m_pHorzScrollBar->Update();
}
m_pHorzScrollBar->RemoveStates(FWL_WGTSTATE_Invisible);
} else if (m_pHorzScrollBar) {
m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible);
}
if (bShowVertScrollbar || bShowHorzScrollbar)
UpdateScroll();
}
CFX_PointF CFWL_Edit::DeviceToEngine(const CFX_PointF& pt) {
return pt + CFX_PointF(m_fScrollOffsetX - m_rtEngine.left,
m_fScrollOffsetY - m_rtEngine.top - m_fVAlignOffset);
}
void CFWL_Edit::InitVerticalScrollBar() {
if (m_pVertScrollBar)
return;
auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>();
prop->m_dwStyleExes = FWL_STYLEEXT_SCB_Vert;
prop->m_dwStates = FWL_WGTSTATE_Disabled | FWL_WGTSTATE_Invisible;
prop->m_pParent = this;
prop->m_pThemeProvider = m_pProperties->m_pThemeProvider;
m_pVertScrollBar =
pdfium::MakeUnique<CFWL_ScrollBar>(m_pOwnerApp, std::move(prop), this);
}
void CFWL_Edit::InitHorizontalScrollBar() {
if (m_pHorzScrollBar)
return;
auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>();
prop->m_dwStyleExes = FWL_STYLEEXT_SCB_Horz;
prop->m_dwStates = FWL_WGTSTATE_Disabled | FWL_WGTSTATE_Invisible;
prop->m_pParent = this;
prop->m_pThemeProvider = m_pProperties->m_pThemeProvider;
m_pHorzScrollBar =
pdfium::MakeUnique<CFWL_ScrollBar>(m_pOwnerApp, std::move(prop), this);
}
void CFWL_Edit::ShowCaret(CFX_RectF* pRect) {
if (m_pCaret) {
m_pCaret->ShowCaret();
if (!pRect->IsEmpty())
m_pCaret->SetWidgetRect(*pRect);
RepaintRect(m_rtEngine);
return;
}
CFWL_Widget* pOuter = this;
pRect->Offset(m_pProperties->m_rtWidget.left, m_pProperties->m_rtWidget.top);
while (pOuter->GetOuter()) {
pOuter = pOuter->GetOuter();
CFX_RectF rtOuter = pOuter->GetWidgetRect();
pRect->Offset(rtOuter.left, rtOuter.top);
}
CXFA_FFWidget* pXFAWidget = pOuter->GetLayoutItem();
if (!pXFAWidget)
return;
IXFA_DocEnvironment* pDocEnvironment =
pXFAWidget->GetDoc()->GetDocEnvironment();
if (!pDocEnvironment)
return;
CFX_RectF rt(*pRect);
pXFAWidget->GetRotateMatrix().TransformRect(rt);
pDocEnvironment->DisplayCaret(pXFAWidget, true, &rt);
}
void CFWL_Edit::HideCaret(CFX_RectF* pRect) {
if (m_pCaret) {
m_pCaret->HideCaret();
RepaintRect(m_rtEngine);
return;
}
CFWL_Widget* pOuter = this;
while (pOuter->GetOuter())
pOuter = pOuter->GetOuter();
CXFA_FFWidget* pXFAWidget = pOuter->GetLayoutItem();
if (!pXFAWidget)
return;
IXFA_DocEnvironment* pDocEnvironment =
pXFAWidget->GetDoc()->GetDocEnvironment();
if (!pDocEnvironment)
return;
pDocEnvironment->DisplayCaret(pXFAWidget, false, pRect);
}
bool CFWL_Edit::ValidateNumberChar(FX_WCHAR cNum) {
if (!m_bSetRange)
return true;
CFX_WideString wsText = m_EdtEngine.GetText(0, -1);
if (wsText.IsEmpty()) {
if (cNum == L'0')
return false;
return true;
}
int32_t caretPos = m_EdtEngine.GetCaretPos();
if (CountSelRanges() == 0) {
if (cNum == L'0' && caretPos == 0)
return false;
int32_t nLen = wsText.GetLength();
CFX_WideString l = wsText.Mid(0, caretPos);
CFX_WideString r = wsText.Mid(caretPos, nLen - caretPos);
CFX_WideString wsNew = l + cNum + r;
if (wsNew.GetInteger() <= m_iMax)
return true;
return false;
}
if (wsText.GetInteger() <= m_iMax)
return true;
return false;
}
void CFWL_Edit::InitCaret() {
if (!m_pCaret)
return;
m_pCaret.reset();
}
void CFWL_Edit::ClearRecord() {
m_iCurRecord = -1;
m_DoRecords.clear();
}
void CFWL_Edit::ProcessInsertError(int32_t iError) {
if (iError != -2)
return;
CFWL_Event textFullEvent(CFWL_Event::Type::TextFull, this);
DispatchEvent(&textFullEvent);
}
void CFWL_Edit::OnProcessMessage(CFWL_Message* pMessage) {
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::LeftButtonDblClk:
OnButtonDblClk(pMsg);
break;
case FWL_MouseCommand::Move:
OnMouseMove(pMsg);
break;
case FWL_MouseCommand::RightButtonDown:
DoButtonDown(pMsg);
break;
default:
break;
}
break;
}
case CFWL_Message::Type::Key: {
CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown)
OnKeyDown(pKey);
else if (pKey->m_dwCmd == FWL_KeyCommand::Char)
OnChar(pKey);
break;
}
default:
break;
}
CFWL_Widget::OnProcessMessage(pMessage);
}
void CFWL_Edit::OnProcessEvent(CFWL_Event* pEvent) {
if (!pEvent)
return;
if (pEvent->GetType() != CFWL_Event::Type::Scroll)
return;
CFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget;
if ((pSrcTarget == m_pVertScrollBar.get() && m_pVertScrollBar) ||
(pSrcTarget == m_pHorzScrollBar.get() && m_pHorzScrollBar)) {
CFWL_EventScroll* pScrollEvent = static_cast<CFWL_EventScroll*>(pEvent);
OnScroll(static_cast<CFWL_ScrollBar*>(pSrcTarget),
pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos);
}
}
void CFWL_Edit::OnDrawWidget(CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix) {
DrawWidget(pGraphics, pMatrix);
}
void CFWL_Edit::DoButtonDown(CFWL_MessageMouse* pMsg) {
if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)
SetFocus(true);
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return;
bool bBefore = true;
int32_t nIndex = pPage->GetCharIndex(DeviceToEngine(pMsg->m_pos), bBefore);
if (nIndex < 0)
nIndex = 0;
m_EdtEngine.SetCaretPos(nIndex, bBefore);
}
void CFWL_Edit::OnFocusChanged(CFWL_Message* pMsg, bool bSet) {
bool bRepaint = false;
if (bSet) {
m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
UpdateVAlignment();
UpdateOffset();
UpdateCaret();
} else if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) {
m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
HideCaret(nullptr);
int32_t nSel = CountSelRanges();
if (nSel > 0) {
ClearSelections();
bRepaint = true;
}
m_EdtEngine.SetCaretPos(0, true);
UpdateOffset();
ClearRecord();
}
LayoutScrollBar();
if (!bRepaint)
return;
CFX_RectF rtInvalidate(0, 0, m_pProperties->m_rtWidget.width,
m_pProperties->m_rtWidget.height);
RepaintRect(rtInvalidate);
}
void CFWL_Edit::OnLButtonDown(CFWL_MessageMouse* pMsg) {
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
return;
m_bLButtonDown = true;
SetGrab(true);
DoButtonDown(pMsg);
int32_t nIndex = m_EdtEngine.GetCaretPos();
bool bRepaint = false;
if (m_EdtEngine.CountSelRanges() > 0) {
m_EdtEngine.ClearSelection();
bRepaint = true;
}
if ((pMsg->m_dwFlags & FWL_KEYFLAG_Shift) && m_nSelStart != nIndex) {
int32_t iStart = std::min(m_nSelStart, nIndex);
int32_t iEnd = std::max(m_nSelStart, nIndex);
m_EdtEngine.AddSelRange(iStart, iEnd - iStart);
bRepaint = true;
} else {
m_nSelStart = nIndex;
}
if (bRepaint)
RepaintRect(m_rtEngine);
}
void CFWL_Edit::OnLButtonUp(CFWL_MessageMouse* pMsg) {
m_bLButtonDown = false;
SetGrab(false);
}
void CFWL_Edit::OnButtonDblClk(CFWL_MessageMouse* pMsg) {
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return;
int32_t nCount = 0;
int32_t nIndex = pPage->SelectWord(DeviceToEngine(pMsg->m_pos), nCount);
if (nIndex < 0)
return;
m_EdtEngine.AddSelRange(nIndex, nCount);
m_EdtEngine.SetCaretPos(nIndex + nCount - 1, false);
RepaintRect(m_rtEngine);
}
void CFWL_Edit::OnMouseMove(CFWL_MessageMouse* pMsg) {
if (m_nSelStart == -1 || !m_bLButtonDown)
return;
IFDE_TxtEdtPage* pPage = m_EdtEngine.GetPage(0);
if (!pPage)
return;
bool bBefore = true;
int32_t nIndex = pPage->GetCharIndex(DeviceToEngine(pMsg->m_pos), bBefore);
m_EdtEngine.SetCaretPos(nIndex, bBefore);
nIndex = m_EdtEngine.GetCaretPos();
m_EdtEngine.ClearSelection();
if (nIndex == m_nSelStart)
return;
int32_t nLen = m_EdtEngine.GetTextLength();
if (m_nSelStart >= nLen)
m_nSelStart = nLen;
m_EdtEngine.AddSelRange(std::min(m_nSelStart, nIndex),
FXSYS_abs(nIndex - m_nSelStart));
}
void CFWL_Edit::OnKeyDown(CFWL_MessageKey* pMsg) {
FDE_TXTEDTMOVECARET MoveCaret = MC_MoveNone;
bool bShift = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Shift);
bool bCtrl = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl);
uint32_t dwKeyCode = pMsg->m_dwKeyCode;
switch (dwKeyCode) {
case FWL_VKEY_Left: {
MoveCaret = MC_Left;
break;
}
case FWL_VKEY_Right: {
MoveCaret = MC_Right;
break;
}
case FWL_VKEY_Up: {
MoveCaret = MC_Up;
break;
}
case FWL_VKEY_Down: {
MoveCaret = MC_Down;
break;
}
case FWL_VKEY_Home: {
MoveCaret = bCtrl ? MC_Home : MC_LineStart;
break;
}
case FWL_VKEY_End: {
MoveCaret = bCtrl ? MC_End : MC_LineEnd;
break;
}
case FWL_VKEY_Insert:
break;
case FWL_VKEY_Delete: {
if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly) ||
(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)) {
break;
}
int32_t nCaret = m_EdtEngine.GetCaretPos();
#if (_FX_OS_ == _FX_MACOSX_)
m_EdtEngine.Delete(nCaret, true);
#else
m_EdtEngine.Delete(nCaret);
#endif
break;
}
case FWL_VKEY_F2:
case FWL_VKEY_Tab:
default:
break;
}
if (MoveCaret != MC_MoveNone)
m_EdtEngine.MoveCaretPos(MoveCaret, bShift, bCtrl);
}
void CFWL_Edit::OnChar(CFWL_MessageKey* pMsg) {
if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly) ||
(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)) {
return;
}
int32_t iError = 0;
FX_WCHAR c = static_cast<FX_WCHAR>(pMsg->m_dwKeyCode);
int32_t nCaret = m_EdtEngine.GetCaretPos();
switch (c) {
case FWL_VKEY_Back:
m_EdtEngine.Delete(nCaret, true);
break;
case FWL_VKEY_NewLine:
case FWL_VKEY_Escape:
break;
case FWL_VKEY_Tab: {
iError = m_EdtEngine.Insert(nCaret, L"\t", 1);
break;
}
case FWL_VKEY_Return: {
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_WantReturn) {
iError = m_EdtEngine.Insert(nCaret, L"\n", 1);
}
break;
}
default: {
if (!m_pWidgetMgr->IsFormDisabled()) {
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_Number) {
if (((pMsg->m_dwKeyCode < FWL_VKEY_0) &&
(pMsg->m_dwKeyCode != 0x2E && pMsg->m_dwKeyCode != 0x2D)) ||
pMsg->m_dwKeyCode > FWL_VKEY_9) {
break;
}
if (!ValidateNumberChar(c))
break;
}
}
#if (_FX_OS_ == _FX_MACOSX_)
if (pMsg->m_dwFlags & FWL_KEYFLAG_Command)
#else
if (pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl)
#endif
{
break;
}
iError = m_EdtEngine.Insert(nCaret, &c, 1);
break;
}
}
if (iError < 0)
ProcessInsertError(iError);
}
bool CFWL_Edit::OnScroll(CFWL_ScrollBar* pScrollBar,
CFWL_EventScroll::Code dwCode,
FX_FLOAT fPos) {
CFX_SizeF fs;
pScrollBar->GetRange(&fs.width, &fs.height);
FX_FLOAT iCurPos = pScrollBar->GetPos();
FX_FLOAT fStep = pScrollBar->GetStepSize();
switch (dwCode) {
case CFWL_EventScroll::Code::Min: {
fPos = fs.width;
break;
}
case CFWL_EventScroll::Code::Max: {
fPos = fs.height;
break;
}
case CFWL_EventScroll::Code::StepBackward: {
fPos -= fStep;
if (fPos < fs.width + fStep / 2) {
fPos = fs.width;
}
break;
}
case CFWL_EventScroll::Code::StepForward: {
fPos += fStep;
if (fPos > fs.height - fStep / 2) {
fPos = fs.height;
}
break;
}
case CFWL_EventScroll::Code::PageBackward: {
fPos -= pScrollBar->GetPageSize();
if (fPos < fs.width) {
fPos = fs.width;
}
break;
}
case CFWL_EventScroll::Code::PageForward: {
fPos += pScrollBar->GetPageSize();
if (fPos > fs.height) {
fPos = fs.height;
}
break;
}
case CFWL_EventScroll::Code::Pos:
case CFWL_EventScroll::Code::TrackPos:
case CFWL_EventScroll::Code::None:
break;
case CFWL_EventScroll::Code::EndScroll:
return false;
}
if (iCurPos == fPos)
return true;
pScrollBar->SetPos(fPos);
pScrollBar->SetTrackPos(fPos);
UpdateOffset(pScrollBar, fPos - iCurPos);
UpdateCaret();
CFX_RectF rect = GetWidgetRect();
RepaintRect(CFX_RectF(0, 0, rect.width + 2, rect.height + 2));
return true;
}