// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fde/tto/fde_textout.h"
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#include <algorithm>
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#include "core/fxcrt/include/fx_coordinates.h"
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#include "core/fxcrt/include/fx_system.h"
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#include "xfa/fde/cfde_path.h"
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#include "xfa/fde/fde_gedevice.h"
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#include "xfa/fde/fde_object.h"
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#include "xfa/fgas/crt/fgas_memory.h"
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#include "xfa/fgas/crt/fgas_utils.h"
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#include "xfa/fgas/layout/fgas_textbreak.h"
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CFDE_TextOut::CFDE_TextOut()
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: m_pFont(nullptr),
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m_fFontSize(12.0f),
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m_fLineSpace(m_fFontSize),
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m_fLinePos(0.0f),
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m_fTolerance(0.0f),
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m_iAlignment(0),
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m_iTxtBkAlignment(0),
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m_pCharWidths(nullptr),
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m_iChars(0),
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m_pEllCharWidths(nullptr),
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m_iEllChars(0),
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m_wParagraphBkChar(L'\n'),
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m_TxtColor(0xFF000000),
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m_dwStyles(0),
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m_dwTxtBkStyles(0),
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m_bElliChanged(FALSE),
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m_iEllipsisWidth(0),
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m_ttoLines(5),
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m_iCurLine(0),
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m_iCurPiece(0),
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m_iTotalLines(0),
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m_pCharPos(nullptr),
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m_iCharPosSize(0) {
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m_pTxtBreak = new CFX_TxtBreak(FX_TXTBREAKPOLICY_None);
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m_Matrix.SetIdentity();
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m_rtClip.Reset();
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m_rtLogicClip.Reset();
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}
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CFDE_TextOut::~CFDE_TextOut() {
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delete m_pTxtBreak;
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FX_Free(m_pCharWidths);
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FX_Free(m_pEllCharWidths);
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FX_Free(m_pCharPos);
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m_ttoLines.RemoveAll();
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}
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void CFDE_TextOut::SetFont(CFGAS_GEFont* pFont) {
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ASSERT(pFont);
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m_pFont = pFont;
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m_pTxtBreak->SetFont(pFont);
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}
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void CFDE_TextOut::SetFontSize(FX_FLOAT fFontSize) {
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ASSERT(fFontSize > 0);
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m_fFontSize = fFontSize;
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m_pTxtBreak->SetFontSize(fFontSize);
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}
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void CFDE_TextOut::SetTextColor(FX_ARGB color) {
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m_TxtColor = color;
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}
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void CFDE_TextOut::SetStyles(uint32_t dwStyles) {
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m_dwStyles = dwStyles;
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m_dwTxtBkStyles = 0;
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if (dwStyles & FDE_TTOSTYLE_SingleLine) {
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m_dwTxtBkStyles |= FX_TXTLAYOUTSTYLE_SingleLine;
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}
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if (dwStyles & FDE_TTOSTYLE_ExpandTab) {
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m_dwTxtBkStyles |= FX_TXTLAYOUTSTYLE_ExpandTab;
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}
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if (dwStyles & FDE_TTOSTYLE_ArabicShapes) {
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m_dwTxtBkStyles |= FX_TXTLAYOUTSTYLE_ArabicShapes;
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}
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if (dwStyles & FDE_TTOSTYLE_RTL) {
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m_dwTxtBkStyles |= FX_TXTLAYOUTSTYLE_RTLReadingOrder;
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}
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if (dwStyles & FDE_TTOSTYLE_ArabicContext) {
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m_dwTxtBkStyles |= FX_TXTLAYOUTSTYLE_ArabicContext;
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}
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if (dwStyles & FDE_TTOSTYLE_VerticalLayout) {
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m_dwTxtBkStyles |=
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(FX_TXTLAYOUTSTYLE_VerticalChars | FX_TXTLAYOUTSTYLE_VerticalLayout);
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}
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m_pTxtBreak->SetLayoutStyles(m_dwTxtBkStyles);
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}
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void CFDE_TextOut::SetTabWidth(FX_FLOAT fTabWidth) {
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ASSERT(fTabWidth > 1.0f);
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m_pTxtBreak->SetTabWidth(fTabWidth, FALSE);
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}
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void CFDE_TextOut::SetEllipsisString(const CFX_WideString& wsEllipsis) {
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m_bElliChanged = TRUE;
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m_wsEllipsis = wsEllipsis;
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}
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void CFDE_TextOut::SetParagraphBreakChar(FX_WCHAR wch) {
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m_wParagraphBkChar = wch;
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m_pTxtBreak->SetParagraphBreakChar(wch);
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}
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void CFDE_TextOut::SetAlignment(int32_t iAlignment) {
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m_iAlignment = iAlignment;
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switch (m_iAlignment) {
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case FDE_TTOALIGNMENT_TopCenter:
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case FDE_TTOALIGNMENT_Center:
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case FDE_TTOALIGNMENT_BottomCenter:
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m_iTxtBkAlignment = FX_TXTLINEALIGNMENT_Center;
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break;
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case FDE_TTOALIGNMENT_TopRight:
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case FDE_TTOALIGNMENT_CenterRight:
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case FDE_TTOALIGNMENT_BottomRight:
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m_iTxtBkAlignment = FX_TXTLINEALIGNMENT_Right;
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break;
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default:
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m_iTxtBkAlignment = FX_TXTLINEALIGNMENT_Left;
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break;
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}
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m_pTxtBreak->SetAlignment(m_iTxtBkAlignment);
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}
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void CFDE_TextOut::SetLineSpace(FX_FLOAT fLineSpace) {
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ASSERT(fLineSpace > 1.0f);
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m_fLineSpace = fLineSpace;
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}
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void CFDE_TextOut::SetDIBitmap(CFX_DIBitmap* pDIB) {
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ASSERT(pDIB);
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m_pRenderDevice.reset();
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CFX_FxgeDevice* device = new CFX_FxgeDevice;
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device->Attach(pDIB, false, nullptr, false);
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m_pRenderDevice.reset(new CFDE_RenderDevice(device, FALSE));
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}
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void CFDE_TextOut::SetRenderDevice(CFX_RenderDevice* pDevice) {
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ASSERT(pDevice);
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m_pRenderDevice.reset(new CFDE_RenderDevice(pDevice, FALSE));
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}
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void CFDE_TextOut::SetClipRect(const CFX_Rect& rtClip) {
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m_rtClip.Set((FX_FLOAT)rtClip.left, (FX_FLOAT)rtClip.top,
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(FX_FLOAT)rtClip.Width(), (FX_FLOAT)rtClip.Height());
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}
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void CFDE_TextOut::SetClipRect(const CFX_RectF& rtClip) {
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m_rtClip = rtClip;
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}
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void CFDE_TextOut::SetLogicClipRect(const CFX_RectF& rtClip) {
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m_rtLogicClip = rtClip;
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}
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void CFDE_TextOut::SetMatrix(const CFX_Matrix& matrix) {
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m_Matrix = matrix;
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}
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void CFDE_TextOut::SetLineBreakTolerance(FX_FLOAT fTolerance) {
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m_fTolerance = fTolerance;
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m_pTxtBreak->SetLineBreakTolerance(m_fTolerance);
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}
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int32_t CFDE_TextOut::GetTotalLines() {
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return m_iTotalLines;
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}
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void CFDE_TextOut::CalcSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_Size& size) {
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CFX_RectF rtText;
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rtText.Set(0.0f, 0.0f, (FX_FLOAT)size.x, (FX_FLOAT)size.y);
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CalcSize(pwsStr, iLength, rtText);
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size.x = (int32_t)rtText.Width();
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size.y = (int32_t)rtText.Height();
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}
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void CFDE_TextOut::CalcSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_SizeF& size) {
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CFX_RectF rtText;
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rtText.Set(0.0f, 0.0f, size.x, size.y);
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CalcSize(pwsStr, iLength, rtText);
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size.x = rtText.Width();
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size.y = rtText.Height();
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}
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void CFDE_TextOut::CalcSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_Rect& rect) {
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CFX_RectF rtText;
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rtText.Set((FX_FLOAT)rect.left, (FX_FLOAT)rect.top, (FX_FLOAT)rect.Width(),
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(FX_FLOAT)rect.Height());
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CalcSize(pwsStr, iLength, rtText);
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rect.Set((int32_t)rtText.left, (int32_t)rtText.top, (int32_t)rtText.Width(),
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(int32_t)rtText.Height());
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}
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void CFDE_TextOut::CalcSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_RectF& rect) {
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if (!pwsStr || iLength < 1) {
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rect.width = 0.0f;
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rect.height = 0.0f;
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} else {
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CFX_Matrix rm;
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rm.SetReverse(m_Matrix);
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rm.TransformRect(rect);
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CalcTextSize(pwsStr, iLength, rect);
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m_Matrix.TransformRect(rect);
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}
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}
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void CFDE_TextOut::CalcLogicSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_SizeF& size) {
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CFX_RectF rtText;
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rtText.Set(0.0f, 0.0f, size.x, size.y);
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CalcLogicSize(pwsStr, iLength, rtText);
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size.x = rtText.Width();
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size.y = rtText.Height();
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}
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void CFDE_TextOut::CalcLogicSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_RectF& rect) {
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if (!pwsStr || iLength < 1) {
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rect.width = 0.0f;
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rect.height = 0.0f;
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} else {
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CalcTextSize(pwsStr, iLength, rect);
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}
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}
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void CFDE_TextOut::CalcTextSize(const FX_WCHAR* pwsStr,
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int32_t iLength,
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CFX_RectF& rect) {
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ASSERT(m_pFont && m_fFontSize >= 1.0f);
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SetLineWidth(rect);
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m_iTotalLines = 0;
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const FX_WCHAR* pStr = pwsStr;
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FX_BOOL bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
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FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
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FX_FLOAT fWidth = 0.0f;
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FX_FLOAT fHeight = 0.0f;
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FX_FLOAT fStartPos = bVertical ? rect.bottom() : rect.right();
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uint32_t dwBreakStatus = 0;
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FX_WCHAR wPreChar = 0;
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FX_WCHAR wch;
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FX_WCHAR wBreak = 0;
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while (iLength-- > 0) {
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wch = *pStr++;
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if (wBreak == 0 && (wch == L'\n' || wch == L'\r')) {
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wBreak = wch;
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m_pTxtBreak->SetParagraphBreakChar(wch);
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}
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if (bHotKey && wch == L'&' && wPreChar != L'&') {
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wPreChar = wch;
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continue;
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}
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dwBreakStatus = m_pTxtBreak->AppendChar(wch);
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if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
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RetrieveLineWidth(dwBreakStatus, fStartPos, fWidth, fHeight);
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}
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wPreChar = 0;
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}
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dwBreakStatus = m_pTxtBreak->EndBreak(FX_TXTBREAK_ParagraphBreak);
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if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
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RetrieveLineWidth(dwBreakStatus, fStartPos, fWidth, fHeight);
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}
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m_pTxtBreak->Reset();
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FX_FLOAT fInc = rect.Height() - fHeight;
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if (bVertical) {
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fInc = rect.Width() - fHeight;
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}
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if (m_iAlignment >= FDE_TTOALIGNMENT_CenterLeft &&
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m_iAlignment < FDE_TTOALIGNMENT_BottomLeft) {
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fInc /= 2.0f;
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} else if (m_iAlignment < FDE_TTOALIGNMENT_CenterLeft) {
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fInc = 0.0f;
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}
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if (bVertical) {
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rect.top += fStartPos;
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rect.left += fInc;
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rect.width = fHeight;
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rect.height = std::min(fWidth, rect.Height());
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} else {
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rect.left += fStartPos;
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rect.top += fInc;
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rect.width = std::min(fWidth, rect.Width());
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rect.height = fHeight;
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if (m_dwStyles & FDE_TTOSTYLE_LastLineHeight) {
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rect.height -= m_fLineSpace - m_fFontSize;
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}
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}
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}
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void CFDE_TextOut::SetLineWidth(CFX_RectF& rect) {
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if ((m_dwStyles & FDE_TTOSTYLE_SingleLine) == 0) {
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FX_FLOAT fLineWidth = 0.0f;
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if (m_dwStyles & FDE_TTOSTYLE_VerticalLayout) {
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if (rect.Height() < 1.0f) {
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rect.height = m_fFontSize * 1000.0f;
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}
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fLineWidth = rect.Height();
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} else {
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if (rect.Width() < 1.0f) {
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rect.width = m_fFontSize * 1000.0f;
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}
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fLineWidth = rect.Width();
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}
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m_pTxtBreak->SetLineWidth(fLineWidth);
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}
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}
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FX_BOOL CFDE_TextOut::RetrieveLineWidth(uint32_t dwBreakStatus,
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FX_FLOAT& fStartPos,
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FX_FLOAT& fWidth,
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FX_FLOAT& fHeight) {
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if (dwBreakStatus <= FX_TXTBREAK_PieceBreak) {
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return FALSE;
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}
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FX_FLOAT fLineStep =
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(m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
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FX_BOOL bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
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FX_FLOAT fLineWidth = 0.0f;
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int32_t iCount = m_pTxtBreak->CountBreakPieces();
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for (int32_t i = 0; i < iCount; i++) {
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const CFX_TxtPiece* pPiece = m_pTxtBreak->GetBreakPiece(i);
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fLineWidth += (FX_FLOAT)pPiece->m_iWidth / 20000.0f;
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fStartPos = std::min(fStartPos, (FX_FLOAT)pPiece->m_iStartPos / 20000.0f);
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}
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m_pTxtBreak->ClearBreakPieces();
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if (dwBreakStatus == FX_TXTBREAK_ParagraphBreak) {
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m_pTxtBreak->Reset();
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}
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if (!bLineWrap && dwBreakStatus == FX_TXTBREAK_LineBreak) {
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fWidth += fLineWidth;
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} else {
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fWidth = std::max(fWidth, fLineWidth);
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fHeight += fLineStep;
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}
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m_iTotalLines++;
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return TRUE;
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}
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void CFDE_TextOut::DrawText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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int32_t x,
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int32_t y) {
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CFX_RectF rtText;
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rtText.Set((FX_FLOAT)x, (FX_FLOAT)y, m_fFontSize * 1000.0f,
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m_fFontSize * 1000.0f);
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DrawText(pwsStr, iLength, rtText);
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}
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void CFDE_TextOut::DrawText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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FX_FLOAT x,
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FX_FLOAT y) {
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CFX_RectF rtText;
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rtText.Set(x, y, m_fFontSize * 1000.0f, m_fFontSize * 1000.0f);
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DrawText(pwsStr, iLength, rtText);
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}
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void CFDE_TextOut::DrawText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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const CFX_Rect& rect) {
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CFX_RectF rtText;
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rtText.Set((FX_FLOAT)rect.left, (FX_FLOAT)rect.top, (FX_FLOAT)rect.width,
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(FX_FLOAT)rect.height);
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DrawText(pwsStr, iLength, rtText);
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}
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void CFDE_TextOut::DrawText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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const CFX_RectF& rect) {
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CFX_RectF rtText;
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rtText.Set(rect.left, rect.top, rect.width, rect.height);
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CFX_Matrix rm;
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rm.SetReverse(m_Matrix);
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rm.TransformRect(rtText);
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DrawText(pwsStr, iLength, rtText, m_rtClip);
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}
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void CFDE_TextOut::DrawLogicText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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FX_FLOAT x,
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FX_FLOAT y) {
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CFX_RectF rtText;
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rtText.Set(x, y, m_fFontSize * 1000.0f, m_fFontSize * 1000.0f);
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DrawLogicText(pwsStr, iLength, rtText);
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}
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void CFDE_TextOut::DrawLogicText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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const CFX_RectF& rect) {
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CFX_RectF rtClip;
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rtClip.Set(m_rtLogicClip.left, m_rtLogicClip.top, m_rtLogicClip.width,
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m_rtLogicClip.height);
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m_Matrix.TransformRect(rtClip);
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DrawText(pwsStr, iLength, rect, rtClip);
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}
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void CFDE_TextOut::DrawText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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const CFX_RectF& rect,
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const CFX_RectF& rtClip) {
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ASSERT(m_pFont && m_fFontSize >= 1.0f);
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if (!pwsStr || iLength < 1)
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return;
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if (rect.width < m_fFontSize || rect.height < m_fFontSize) {
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return;
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}
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FX_FLOAT fLineWidth = rect.width;
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if (m_dwStyles & FDE_TTOSTYLE_VerticalLayout) {
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fLineWidth = rect.height;
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}
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m_pTxtBreak->SetLineWidth(fLineWidth);
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m_ttoLines.RemoveAll(TRUE);
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m_wsText.clear();
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LoadText(pwsStr, iLength, rect);
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if (m_dwStyles & FDE_TTOSTYLE_Ellipsis) {
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ReplaceWidthEllipsis();
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}
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Reload(rect);
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DoAlignment(rect);
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OnDraw(rtClip);
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}
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void CFDE_TextOut::ExpandBuffer(int32_t iSize, int32_t iType) {
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switch (iType) {
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case 0:
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if (!m_pCharWidths) {
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m_pCharWidths = FX_Alloc(int32_t, iSize);
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m_iChars = iSize;
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} else if (m_iChars < iSize) {
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m_pCharWidths = FX_Realloc(int32_t, m_pCharWidths, iSize);
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m_iChars = iSize;
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}
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FXSYS_memset(m_pCharWidths, 0, iSize * sizeof(int32_t));
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break;
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case 1:
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if (!m_pEllCharWidths) {
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m_pEllCharWidths = FX_Alloc(int32_t, iSize);
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m_iEllChars = iSize;
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} else if (m_iEllChars < iSize) {
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m_pEllCharWidths = FX_Realloc(int32_t, m_pEllCharWidths, iSize);
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m_iEllChars = iSize;
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}
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FXSYS_memset(m_pEllCharWidths, 0, iSize * sizeof(int32_t));
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break;
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case 2:
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if (!m_pCharPos) {
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m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, iSize);
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m_iCharPosSize = iSize;
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} else if (m_iCharPosSize < iSize) {
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m_pCharPos = FX_Realloc(FXTEXT_CHARPOS, m_pCharPos, iSize);
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m_iCharPosSize = iSize;
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}
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break;
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}
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}
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void CFDE_TextOut::LoadEllipsis() {
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if (!m_bElliChanged) {
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return;
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}
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m_bElliChanged = FALSE;
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m_iEllipsisWidth = 0;
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int32_t iLength = m_wsEllipsis.GetLength();
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if (iLength < 1) {
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return;
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}
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ExpandBuffer(iLength, 1);
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const FX_WCHAR* pStr = m_wsEllipsis.c_str();
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int32_t* pCharWidths = m_pEllCharWidths;
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uint32_t dwBreakStatus;
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FX_WCHAR wch;
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while (iLength-- > 0) {
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wch = *pStr++;
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dwBreakStatus = m_pTxtBreak->AppendChar(wch);
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if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
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RetrieveEllPieces(pCharWidths);
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}
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}
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dwBreakStatus = m_pTxtBreak->EndBreak(FX_TXTBREAK_ParagraphBreak);
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if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
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RetrieveEllPieces(pCharWidths);
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}
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m_pTxtBreak->Reset();
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}
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void CFDE_TextOut::RetrieveEllPieces(int32_t*& pCharWidths) {
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int32_t iCount = m_pTxtBreak->CountBreakPieces();
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CFX_Char* pTC;
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for (int32_t i = 0; i < iCount; i++) {
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const CFX_TxtPiece* pPiece = m_pTxtBreak->GetBreakPiece(i);
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int32_t iPieceChars = pPiece->GetLength();
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for (int32_t j = 0; j < iPieceChars; j++) {
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pTC = pPiece->GetCharPtr(j);
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if (pTC->m_iCharWidth <= 0) {
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*pCharWidths = 0;
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} else {
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*pCharWidths = pTC->m_iCharWidth;
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}
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m_iEllipsisWidth += *pCharWidths;
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pCharWidths++;
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}
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}
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m_pTxtBreak->ClearBreakPieces();
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}
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void CFDE_TextOut::LoadText(const FX_WCHAR* pwsStr,
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int32_t iLength,
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const CFX_RectF& rect) {
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FX_WCHAR* pStr = m_wsText.GetBuffer(iLength);
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int32_t iTxtLength = iLength;
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ExpandBuffer(iTxtLength, 0);
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FX_BOOL bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
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FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
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FX_BOOL bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
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FX_FLOAT fLineStep =
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(m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
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FX_FLOAT fLineStop = bVertical ? rect.left : rect.bottom();
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m_fLinePos = bVertical ? rect.right() : rect.top;
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if (bVertical) {
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fLineStep = -fLineStep;
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}
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m_hotKeys.RemoveAll();
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int32_t iStartChar = 0;
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int32_t iChars = 0;
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int32_t iPieceWidths = 0;
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uint32_t dwBreakStatus;
|
FX_WCHAR wch;
|
FX_BOOL bRet = FALSE;
|
while (iTxtLength-- > 0) {
|
wch = *pwsStr++;
|
if (bHotKey && wch == L'&' && *(pStr - 1) != L'&') {
|
if (iTxtLength > 0)
|
m_hotKeys.Add(iChars);
|
continue;
|
}
|
*pStr++ = wch;
|
iChars++;
|
dwBreakStatus = m_pTxtBreak->AppendChar(wch);
|
if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
|
FX_BOOL bEndofLine =
|
RetriecePieces(dwBreakStatus, iStartChar, iPieceWidths, FALSE, rect);
|
if (bEndofLine && (bLineWrap || (dwBreakStatus > FX_TXTBREAK_LineBreak &&
|
!bLineWrap))) {
|
iPieceWidths = 0;
|
m_iCurLine++;
|
m_fLinePos += fLineStep;
|
}
|
if ((bVertical && m_fLinePos + fLineStep < fLineStop) ||
|
(!bVertical && m_fLinePos + fLineStep > fLineStop)) {
|
int32_t iCurLine = m_iCurLine;
|
if (bEndofLine) {
|
iCurLine--;
|
}
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(iCurLine);
|
pLine->m_bNewReload = TRUE;
|
bRet = TRUE;
|
break;
|
}
|
}
|
}
|
dwBreakStatus = m_pTxtBreak->EndBreak(FX_TXTBREAK_ParagraphBreak);
|
if (dwBreakStatus > FX_TXTBREAK_PieceBreak && !bRet) {
|
RetriecePieces(dwBreakStatus, iStartChar, iPieceWidths, FALSE, rect);
|
}
|
m_pTxtBreak->ClearBreakPieces();
|
m_pTxtBreak->Reset();
|
m_wsText.ReleaseBuffer(iLength);
|
}
|
FX_BOOL CFDE_TextOut::RetriecePieces(uint32_t dwBreakStatus,
|
int32_t& iStartChar,
|
int32_t& iPieceWidths,
|
FX_BOOL bReload,
|
const CFX_RectF& rect) {
|
FX_BOOL bSingleLine = !!(m_dwStyles & FDE_TTOSTYLE_SingleLine);
|
FX_BOOL bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
|
FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
|
FX_FLOAT fLineStep =
|
(m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
|
if (bVertical) {
|
fLineStep = -fLineStep;
|
}
|
CFX_Char* pTC = nullptr;
|
FX_BOOL bNeedReload = FALSE;
|
FX_FLOAT fLineWidth = bVertical ? rect.Height() : rect.Width();
|
int32_t iLineWidth = FXSYS_round(fLineWidth * 20000.0f);
|
int32_t iCount = m_pTxtBreak->CountBreakPieces();
|
for (int32_t i = 0; i < iCount; i++) {
|
const CFX_TxtPiece* pPiece = m_pTxtBreak->GetBreakPiece(i);
|
int32_t iPieceChars = pPiece->GetLength();
|
int32_t iChar = iStartChar;
|
int32_t iWidth = 0;
|
int32_t j = 0;
|
for (; j < iPieceChars; j++) {
|
pTC = pPiece->GetCharPtr(j);
|
int32_t iCurCharWidth = pTC->m_iCharWidth > 0 ? pTC->m_iCharWidth : 0;
|
if (bSingleLine || !bLineWrap) {
|
if (iLineWidth - iPieceWidths - iWidth < iCurCharWidth) {
|
bNeedReload = TRUE;
|
break;
|
}
|
}
|
iWidth += iCurCharWidth;
|
m_pCharWidths[iChar++] = iCurCharWidth;
|
}
|
if (j == 0 && !bReload) {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(m_iCurLine);
|
pLine->m_bNewReload = TRUE;
|
} else if (j > 0) {
|
CFX_RectF rtPiece;
|
if (bVertical) {
|
rtPiece.left = m_fLinePos;
|
rtPiece.top = rect.top + (FX_FLOAT)pPiece->m_iStartPos / 20000.0f;
|
rtPiece.width = fLineStep;
|
rtPiece.height = iWidth / 20000.0f;
|
} else {
|
rtPiece.left = rect.left + (FX_FLOAT)pPiece->m_iStartPos / 20000.0f;
|
rtPiece.top = m_fLinePos;
|
rtPiece.width = iWidth / 20000.0f;
|
rtPiece.height = fLineStep;
|
}
|
FDE_TTOPIECE ttoPiece;
|
ttoPiece.iStartChar = iStartChar;
|
ttoPiece.iChars = j;
|
ttoPiece.rtPiece = rtPiece;
|
ttoPiece.dwCharStyles = pPiece->m_dwCharStyles;
|
if (FX_IsOdd(pPiece->m_iBidiLevel)) {
|
ttoPiece.dwCharStyles |= FX_TXTCHARSTYLE_OddBidiLevel;
|
}
|
AppendPiece(ttoPiece, bNeedReload, (bReload && i == iCount - 1));
|
}
|
iStartChar += iPieceChars;
|
iPieceWidths += iWidth;
|
}
|
m_pTxtBreak->ClearBreakPieces();
|
FX_BOOL bRet = bSingleLine || bLineWrap || (!bLineWrap && bNeedReload) ||
|
dwBreakStatus == FX_TXTBREAK_ParagraphBreak;
|
return bRet;
|
}
|
void CFDE_TextOut::AppendPiece(const FDE_TTOPIECE& ttoPiece,
|
FX_BOOL bNeedReload,
|
FX_BOOL bEnd) {
|
if (m_iCurLine >= m_ttoLines.GetSize()) {
|
CFDE_TTOLine ttoLine;
|
ttoLine.m_bNewReload = bNeedReload;
|
m_iCurPiece = ttoLine.AddPiece(m_iCurPiece, ttoPiece);
|
m_iCurLine = m_ttoLines.Add(ttoLine);
|
} else {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(m_iCurLine);
|
pLine->m_bNewReload = bNeedReload;
|
m_iCurPiece = pLine->AddPiece(m_iCurPiece, ttoPiece);
|
if (bEnd) {
|
int32_t iPieces = pLine->GetSize();
|
if (m_iCurPiece < iPieces) {
|
pLine->RemoveLast(iPieces - m_iCurPiece - 1);
|
}
|
}
|
}
|
if (!bEnd && bNeedReload) {
|
m_iCurPiece = 0;
|
}
|
}
|
void CFDE_TextOut::ReplaceWidthEllipsis() {
|
LoadEllipsis();
|
int32_t iLength = m_wsEllipsis.GetLength();
|
if (iLength < 1) {
|
return;
|
}
|
int32_t iLines = m_ttoLines.GetSize();
|
for (int32_t i = 0; i < iLines; i++) {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(i);
|
if (!pLine->m_bNewReload) {
|
continue;
|
}
|
int32_t iEllipsisCharIndex = iLength - 1;
|
int32_t iCharWidth = 0;
|
int32_t iCharCount = 0;
|
int32_t iPiece = pLine->GetSize();
|
while (iPiece-- > 0) {
|
FDE_TTOPIECE* pPiece = pLine->GetPtrAt(iPiece);
|
if (!pPiece)
|
break;
|
|
for (int32_t j = pPiece->iChars - 1; j >= 0; j--) {
|
if (iEllipsisCharIndex < 0) {
|
break;
|
}
|
int32_t index = pPiece->iStartChar + j;
|
iCharWidth += m_pCharWidths[index];
|
iCharCount++;
|
if (iCharCount <= iLength) {
|
m_wsText.SetAt(index, m_wsEllipsis.GetAt(iEllipsisCharIndex));
|
m_pCharWidths[index] = m_pEllCharWidths[iEllipsisCharIndex];
|
} else if (iCharWidth <= m_iEllipsisWidth) {
|
m_wsText.SetAt(index, 0);
|
m_pCharWidths[index] = 0;
|
}
|
iEllipsisCharIndex--;
|
}
|
if (iEllipsisCharIndex < 0) {
|
break;
|
}
|
}
|
}
|
}
|
void CFDE_TextOut::Reload(const CFX_RectF& rect) {
|
int32_t iCount = m_ttoLines.GetSize();
|
for (int32_t i = 0; i < iCount; i++) {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(i);
|
if (!pLine || !pLine->m_bNewReload)
|
continue;
|
|
m_iCurLine = i;
|
m_iCurPiece = 0;
|
ReloadLinePiece(pLine, rect);
|
}
|
}
|
void CFDE_TextOut::ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect) {
|
const FX_WCHAR* pwsStr = m_wsText.c_str();
|
FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
|
int32_t iPieceWidths = 0;
|
FDE_TTOPIECE* pPiece = pLine->GetPtrAt(0);
|
int32_t iStartChar = pPiece->iStartChar;
|
m_fLinePos = bVertical ? pPiece->rtPiece.left : pPiece->rtPiece.top;
|
int32_t iPieceCount = pLine->GetSize();
|
int32_t iPieceIndex = 0;
|
uint32_t dwBreakStatus = 0;
|
FX_WCHAR wch;
|
while (iPieceIndex < iPieceCount) {
|
int32_t iStar = iStartChar;
|
int32_t iEnd = pPiece->iChars + iStar;
|
while (iStar < iEnd) {
|
wch = *(pwsStr + iStar);
|
dwBreakStatus = m_pTxtBreak->AppendChar(wch);
|
if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
|
RetriecePieces(dwBreakStatus, iStartChar, iPieceWidths, TRUE, rect);
|
}
|
iStar++;
|
}
|
iPieceIndex++;
|
pPiece = pLine->GetPtrAt(iPieceIndex);
|
}
|
dwBreakStatus = m_pTxtBreak->EndBreak(FX_TXTBREAK_ParagraphBreak);
|
if (dwBreakStatus > FX_TXTBREAK_PieceBreak) {
|
RetriecePieces(dwBreakStatus, iStartChar, iPieceWidths, TRUE, rect);
|
}
|
m_pTxtBreak->Reset();
|
}
|
void CFDE_TextOut::DoAlignment(const CFX_RectF& rect) {
|
FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
|
FX_FLOAT fLineStopS = bVertical ? rect.right() : rect.bottom();
|
int32_t iLines = m_ttoLines.GetSize();
|
if (iLines < 1)
|
return;
|
FDE_TTOPIECE* pFirstPiece = m_ttoLines.GetPtrAt(iLines - 1)->GetPtrAt(0);
|
if (!pFirstPiece)
|
return;
|
|
FX_FLOAT fLineStopD =
|
bVertical ? pFirstPiece->rtPiece.right() : pFirstPiece->rtPiece.bottom();
|
FX_FLOAT fInc = fLineStopS - fLineStopD;
|
if (m_iAlignment >= FDE_TTOALIGNMENT_CenterLeft &&
|
m_iAlignment < FDE_TTOALIGNMENT_BottomLeft) {
|
fInc /= 2.0f;
|
} else if (m_iAlignment < FDE_TTOALIGNMENT_CenterLeft) {
|
fInc = 0.0f;
|
}
|
if (fInc < 1.0f)
|
return;
|
for (int32_t i = 0; i < iLines; i++) {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(i);
|
int32_t iPieces = pLine->GetSize();
|
for (int32_t j = 0; j < iPieces; j++) {
|
FDE_TTOPIECE* pPiece = pLine->GetPtrAt(j);
|
if (bVertical)
|
pPiece->rtPiece.left += fInc;
|
else
|
pPiece->rtPiece.top += fInc;
|
}
|
}
|
}
|
void CFDE_TextOut::OnDraw(const CFX_RectF& rtClip) {
|
if (!m_pRenderDevice)
|
return;
|
|
int32_t iLines = m_ttoLines.GetSize();
|
if (iLines < 1)
|
return;
|
|
CFDE_Brush* pBrush = new CFDE_Brush;
|
pBrush->SetColor(m_TxtColor);
|
CFDE_Pen* pPen = nullptr;
|
m_pRenderDevice->SaveState();
|
if (rtClip.Width() > 0.0f && rtClip.Height() > 0.0f) {
|
m_pRenderDevice->SetClipRect(rtClip);
|
}
|
for (int32_t i = 0; i < iLines; i++) {
|
CFDE_TTOLine* pLine = m_ttoLines.GetPtrAt(i);
|
int32_t iPieces = pLine->GetSize();
|
for (int32_t j = 0; j < iPieces; j++) {
|
FDE_TTOPIECE* pPiece = pLine->GetPtrAt(j);
|
if (!pPiece)
|
continue;
|
|
int32_t iCount = GetDisplayPos(pPiece);
|
if (iCount > 0) {
|
m_pRenderDevice->DrawString(pBrush, m_pFont, m_pCharPos, iCount,
|
m_fFontSize, &m_Matrix);
|
}
|
DrawLine(pPiece, pPen);
|
}
|
}
|
m_pRenderDevice->RestoreState();
|
delete pBrush;
|
delete pPen;
|
}
|
|
int32_t CFDE_TextOut::GetDisplayPos(FDE_TTOPIECE* pPiece) {
|
FX_TXTRUN tr = ToTextRun(pPiece);
|
ExpandBuffer(tr.iLength, 2);
|
return m_pTxtBreak->GetDisplayPos(&tr, m_pCharPos);
|
}
|
|
int32_t CFDE_TextOut::GetCharRects(const FDE_TTOPIECE* pPiece) {
|
FX_TXTRUN tr = ToTextRun(pPiece);
|
m_rectArray.RemoveAll();
|
return m_pTxtBreak->GetCharRects(&tr, m_rectArray);
|
}
|
|
FX_TXTRUN CFDE_TextOut::ToTextRun(const FDE_TTOPIECE* pPiece) {
|
FX_TXTRUN tr;
|
tr.wsStr = m_wsText + pPiece->iStartChar;
|
tr.pWidths = m_pCharWidths + pPiece->iStartChar;
|
tr.iLength = pPiece->iChars;
|
tr.pFont = m_pFont;
|
tr.fFontSize = m_fFontSize;
|
tr.dwStyles = m_dwTxtBkStyles;
|
tr.dwCharStyles = pPiece->dwCharStyles;
|
tr.wLineBreakChar = m_wParagraphBkChar;
|
tr.pRect = &pPiece->rtPiece;
|
return tr;
|
}
|
|
void CFDE_TextOut::DrawLine(const FDE_TTOPIECE* pPiece, CFDE_Pen*& pPen) {
|
FX_BOOL bUnderLine = !!(m_dwStyles & FDE_TTOSTYLE_Underline);
|
FX_BOOL bStrikeOut = !!(m_dwStyles & FDE_TTOSTYLE_Strikeout);
|
FX_BOOL bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
|
FX_BOOL bVertical = !!(m_dwStyles & FDE_TTOSTYLE_VerticalLayout);
|
if (!bUnderLine && !bStrikeOut && !bHotKey)
|
return;
|
|
if (!pPen) {
|
pPen = new CFDE_Pen;
|
pPen->SetColor(m_TxtColor);
|
}
|
std::unique_ptr<CFDE_Path> pPath(new CFDE_Path);
|
int32_t iLineCount = 0;
|
CFX_RectF rtText = pPiece->rtPiece;
|
CFX_PointF pt1, pt2;
|
if (bUnderLine) {
|
if (bVertical) {
|
pt1.x = rtText.left;
|
pt1.y = rtText.top;
|
pt2.x = rtText.left;
|
pt2.y = rtText.bottom();
|
} else {
|
pt1.x = rtText.left;
|
pt1.y = rtText.bottom();
|
pt2.x = rtText.right();
|
pt2.y = rtText.bottom();
|
}
|
pPath->AddLine(pt1, pt2);
|
iLineCount++;
|
}
|
if (bStrikeOut) {
|
if (bVertical) {
|
pt1.x = rtText.left + rtText.width * 2.0f / 5.0f;
|
pt1.y = rtText.top;
|
pt2.x = pt1.x;
|
pt2.y = rtText.bottom();
|
} else {
|
pt1.x = rtText.left;
|
pt1.y = rtText.bottom() - rtText.height * 2.0f / 5.0f;
|
pt2.x = rtText.right();
|
pt2.y = pt1.y;
|
}
|
pPath->AddLine(pt1, pt2);
|
iLineCount++;
|
}
|
if (bHotKey) {
|
int32_t iHotKeys = m_hotKeys.GetSize();
|
int32_t iCount = GetCharRects(pPiece);
|
if (iCount > 0) {
|
for (int32_t i = 0; i < iHotKeys; i++) {
|
int32_t iCharIndex = m_hotKeys.GetAt(i);
|
if (iCharIndex >= pPiece->iStartChar &&
|
iCharIndex < pPiece->iStartChar + pPiece->iChars) {
|
CFX_RectF rect = m_rectArray.GetAt(iCharIndex - pPiece->iStartChar);
|
if (bVertical) {
|
pt1.x = rect.left;
|
pt1.y = rect.top;
|
pt2.x = rect.left;
|
pt2.y = rect.bottom();
|
} else {
|
pt1.x = rect.left;
|
pt1.y = rect.bottom();
|
pt2.x = rect.right();
|
pt2.y = rect.bottom();
|
}
|
pPath->AddLine(pt1, pt2);
|
iLineCount++;
|
}
|
}
|
}
|
}
|
if (iLineCount > 0)
|
m_pRenderDevice->DrawPath(pPen, 1, pPath.get(), &m_Matrix);
|
}
|
|
CFDE_TTOLine::CFDE_TTOLine()
|
: m_bNewReload(FALSE), m_pieces(5), m_iPieceCount(0) {}
|
|
CFDE_TTOLine::CFDE_TTOLine(const CFDE_TTOLine& ttoLine) : m_pieces(5) {
|
m_bNewReload = ttoLine.m_bNewReload;
|
m_iPieceCount = ttoLine.m_iPieceCount;
|
m_pieces.Copy(ttoLine.m_pieces);
|
}
|
|
CFDE_TTOLine::~CFDE_TTOLine() {}
|
|
int32_t CFDE_TTOLine::AddPiece(int32_t index, const FDE_TTOPIECE& ttoPiece) {
|
if (index >= m_iPieceCount) {
|
index = m_pieces.Add(ttoPiece) + 1;
|
m_iPieceCount++;
|
} else {
|
FDE_TTOPIECE& piece = m_pieces.GetAt(index);
|
piece = ttoPiece;
|
}
|
return index;
|
}
|
int32_t CFDE_TTOLine::GetSize() const {
|
return m_iPieceCount;
|
}
|
FDE_TTOPIECE* CFDE_TTOLine::GetPtrAt(int32_t index) {
|
if (index >= m_iPieceCount) {
|
return nullptr;
|
}
|
return m_pieces.GetPtrAt(index);
|
}
|
void CFDE_TTOLine::RemoveLast(int32_t iCount) {
|
m_pieces.RemoveLast(iCount);
|
}
|
void CFDE_TTOLine::RemoveAll(FX_BOOL bLeaveMemory) {
|
m_pieces.RemoveAll(bLeaveMemory);
|
}
|
