| // 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 "../../include/pdfwindow/PDFWindow.h" |
| #include "../../include/pdfwindow/PWL_Wnd.h" |
| #include "../../include/pdfwindow/PWL_Caret.h" |
| #include "../../include/pdfwindow/PWL_Utils.h" |
| |
| #define PWL_CARET_FLASHINTERVAL 500 |
| |
| ////////////////////////////////////////////////////////////////////// |
| // Construction/Destruction |
| ////////////////////////////////////////////////////////////////////// |
| |
| CPWL_Caret::CPWL_Caret() : |
| m_bFlash(FALSE), |
| m_ptHead(0,0), |
| m_ptFoot(0,0), |
| m_fWidth(0.4f), |
| m_nDelay(0) |
| { |
| } |
| |
| CPWL_Caret::~CPWL_Caret() |
| { |
| } |
| |
| CFX_ByteString CPWL_Caret::GetClassName() const |
| { |
| return "CPWL_Caret"; |
| } |
| |
| void CPWL_Caret::GetThisAppearanceStream(CFX_ByteTextBuf & sAppStream) |
| { |
| GetCaretApp(sAppStream,CPDF_Point(0.0f,0.0f)); |
| } |
| |
| void CPWL_Caret::DrawThisAppearance(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device) |
| { |
| if (IsVisible() && m_bFlash) |
| { |
| CPDF_Rect rcRect = GetCaretRect(); |
| CPDF_Rect rcClip = GetClipRect(); |
| |
| CFX_PathData path; |
| |
| path.SetPointCount(2); |
| |
| FX_FLOAT fCaretX = rcRect.left + m_fWidth * 0.5f; |
| FX_FLOAT fCaretTop = rcRect.top; |
| FX_FLOAT fCaretBottom = rcRect.bottom; |
| |
| if (!rcClip.IsEmpty()) |
| { |
| rcRect.Intersect(rcClip); |
| if (!rcRect.IsEmpty()) |
| { |
| fCaretTop = rcRect.top; |
| fCaretBottom = rcRect.bottom; |
| path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO); |
| path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO); |
| } |
| else |
| { |
| return; |
| } |
| } |
| else |
| { |
| path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO); |
| path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO); |
| } |
| |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = m_fWidth; |
| |
| pDevice->DrawPath(&path, pUser2Device, &gsd,0, ArgbEncode(255,0,0,0), FXFILL_ALTERNATE); |
| } |
| } |
| |
| void CPWL_Caret::GetCaretApp(CFX_ByteTextBuf & sAppStream,const CPDF_Point & ptOffset) |
| { |
| if (IsVisible() && m_bFlash) |
| { |
| CFX_ByteTextBuf sCaret; |
| |
| CPDF_Rect rcRect = GetCaretRect(); |
| CPDF_Rect rcClip = GetClipRect(); |
| |
| rcRect = CPWL_Utils::OffsetRect(rcRect,ptOffset.x,ptOffset.y); |
| rcClip = CPWL_Utils::OffsetRect(rcClip,ptOffset.x,ptOffset.y); |
| |
| sCaret << "q\n"; |
| if (!rcClip.IsEmpty()) |
| { |
| sCaret << rcClip.left << " " << rcClip.bottom + 2.5f << " " |
| << rcClip.right - rcClip.left << " " << rcClip.top - rcClip.bottom - 4.5f << " re W n\n"; |
| } |
| sCaret << m_fWidth << " w\n0 G\n"; |
| sCaret << rcRect.left + m_fWidth/2 << " " << rcRect.bottom << " m\n"; |
| sCaret << rcRect.left + m_fWidth/2 << " " << rcRect.top << " l S\nQ\n"; |
| |
| sAppStream << sCaret; |
| } |
| } |
| |
| CFX_ByteString CPWL_Caret::GetCaretAppearanceStream(const CPDF_Point & ptOffset) |
| { |
| CFX_ByteTextBuf sCaret; |
| GetCaretApp(sCaret,ptOffset); |
| return sCaret.GetByteString(); |
| } |
| |
| void CPWL_Caret::TimerProc() |
| { |
| if (m_nDelay > 0) |
| { |
| m_nDelay--; |
| } |
| else |
| { |
| m_bFlash = !m_bFlash; |
| InvalidateRect(); |
| } |
| } |
| |
| CPDF_Rect CPWL_Caret::GetCaretRect() const |
| { |
| return CPDF_Rect(m_ptFoot.x, |
| m_ptFoot.y, |
| m_ptHead.x + m_fWidth, |
| m_ptHead.y); |
| } |
| |
| void CPWL_Caret::SetCaret(FX_BOOL bVisible, const CPDF_Point & ptHead, const CPDF_Point & ptFoot) |
| { |
| if (bVisible) |
| { |
| if (IsVisible()) |
| { |
| if (m_ptHead.x != ptHead.x || m_ptHead.y != ptHead.y || |
| m_ptFoot.x != ptFoot.x || m_ptFoot.y != ptFoot.y) |
| { |
| m_ptHead = ptHead; |
| m_ptFoot = ptFoot; |
| |
| m_bFlash = TRUE; |
| //Move(GetCaretRect(),FALSE,TRUE); |
| Move(m_rcInvalid, FALSE, TRUE); |
| } |
| } |
| else |
| { |
| m_ptHead = ptHead; |
| m_ptFoot = ptFoot; |
| |
| EndTimer(); |
| BeginTimer(PWL_CARET_FLASHINTERVAL); |
| |
| CPWL_Wnd::SetVisible(TRUE); |
| m_bFlash = TRUE; |
| |
| //Move(GetCaretRect(),FALSE,TRUE); |
| Move(m_rcInvalid, FALSE, TRUE); |
| } |
| } |
| else |
| { |
| m_ptHead = CPDF_Point(0, 0); |
| m_ptFoot = CPDF_Point(0, 0); |
| |
| m_bFlash = FALSE; |
| if (IsVisible()) |
| { |
| EndTimer(); |
| CPWL_Wnd::SetVisible(FALSE); |
| } |
| } |
| } |
| |
| void CPWL_Caret::InvalidateRect(CPDF_Rect * pRect) |
| { |
| if (pRect) |
| { |
| CPDF_Rect rcRefresh = CPWL_Utils::InflateRect(*pRect,0.5f); |
| rcRefresh.top += 1; |
| rcRefresh.bottom -= 1; |
| |
| CPWL_Wnd::InvalidateRect(&rcRefresh); |
| } |
| else |
| CPWL_Wnd::InvalidateRect(pRect); |
| } |
| |