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Diffstat (limited to 'fpdfsdk/pwl/cpwl_caret.cpp')
-rw-r--r--fpdfsdk/pwl/cpwl_caret.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/fpdfsdk/pwl/cpwl_caret.cpp b/fpdfsdk/pwl/cpwl_caret.cpp
new file mode 100644
index 0000000000..d309d2743b
--- /dev/null
+++ b/fpdfsdk/pwl/cpwl_caret.cpp
@@ -0,0 +1,114 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "fpdfsdk/pwl/cpwl_caret.h"
+
+#include <sstream>
+
+#include "core/fxge/cfx_graphstatedata.h"
+#include "core/fxge/cfx_pathdata.h"
+#include "core/fxge/cfx_renderdevice.h"
+#include "fpdfsdk/pwl/cpwl_wnd.h"
+
+#define PWL_CARET_FLASHINTERVAL 500
+
+CPWL_Caret::CPWL_Caret() : m_bFlash(false), m_fWidth(0.4f), m_nDelay(0) {}
+
+CPWL_Caret::~CPWL_Caret() {}
+
+CFX_ByteString CPWL_Caret::GetClassName() const {
+ return "CPWL_Caret";
+}
+
+void CPWL_Caret::DrawThisAppearance(CFX_RenderDevice* pDevice,
+ CFX_Matrix* pUser2Device) {
+ if (!IsVisible() || !m_bFlash)
+ return;
+
+ CFX_FloatRect rcRect = GetCaretRect();
+ CFX_FloatRect rcClip = GetClipRect();
+ CFX_PathData path;
+
+ float fCaretX = rcRect.left + m_fWidth * 0.5f;
+ float fCaretTop = rcRect.top;
+ float fCaretBottom = rcRect.bottom;
+ if (!rcClip.IsEmpty()) {
+ rcRect.Intersect(rcClip);
+ if (rcRect.IsEmpty())
+ return;
+
+ fCaretTop = rcRect.top;
+ fCaretBottom = rcRect.bottom;
+ }
+
+ path.AppendPoint(CFX_PointF(fCaretX, fCaretBottom), FXPT_TYPE::MoveTo, false);
+ path.AppendPoint(CFX_PointF(fCaretX, fCaretTop), FXPT_TYPE::LineTo, false);
+
+ CFX_GraphStateData gsd;
+ gsd.m_LineWidth = m_fWidth;
+ pDevice->DrawPath(&path, pUser2Device, &gsd, 0, ArgbEncode(255, 0, 0, 0),
+ FXFILL_ALTERNATE);
+}
+
+void CPWL_Caret::TimerProc() {
+ if (m_nDelay > 0) {
+ m_nDelay--;
+ } else {
+ m_bFlash = !m_bFlash;
+ InvalidateRect();
+ }
+}
+
+CFX_FloatRect CPWL_Caret::GetCaretRect() const {
+ return CFX_FloatRect(m_ptFoot.x, m_ptFoot.y, m_ptHead.x + m_fWidth,
+ m_ptHead.y);
+}
+
+void CPWL_Caret::SetCaret(bool bVisible,
+ const CFX_PointF& ptHead,
+ const CFX_PointF& ptFoot) {
+ if (bVisible) {
+ if (IsVisible()) {
+ if (m_ptHead != ptHead || m_ptFoot != ptFoot) {
+ m_ptHead = ptHead;
+ m_ptFoot = ptFoot;
+ m_bFlash = 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(m_rcInvalid, false, true);
+ }
+ } else {
+ m_ptHead = CFX_PointF();
+ m_ptFoot = CFX_PointF();
+ m_bFlash = false;
+ if (IsVisible()) {
+ EndTimer();
+ CPWL_Wnd::SetVisible(false);
+ }
+ }
+}
+
+void CPWL_Caret::InvalidateRect(CFX_FloatRect* pRect) {
+ if (pRect) {
+ CFX_FloatRect rcRefresh = *pRect;
+ if (!rcRefresh.IsEmpty()) {
+ rcRefresh.Inflate(0.5f, 0.5f);
+ rcRefresh.Normalize();
+ }
+ rcRefresh.top += 1;
+ rcRefresh.bottom -= 1;
+ CPWL_Wnd::InvalidateRect(&rcRefresh);
+ } else {
+ CPWL_Wnd::InvalidateRect(pRect);
+ }
+}