diff options
Diffstat (limited to 'xfa/src/fdp/src/fde/fde_render.cpp')
| -rw-r--r-- | xfa/src/fdp/src/fde/fde_render.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/xfa/src/fdp/src/fde/fde_render.cpp b/xfa/src/fdp/src/fde/fde_render.cpp new file mode 100644 index 0000000000..e8e9149e02 --- /dev/null +++ b/xfa/src/fdp/src/fde/fde_render.cpp @@ -0,0 +1,253 @@ +// 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 "../../../foxitlib.h"
+#include "fde_render.h"
+void FDE_GetPageMatrix(CFX_Matrix &pageMatrix, const CFX_RectF &docPageRect, const CFX_Rect &devicePageRect, FX_INT32 iRotate, FX_DWORD dwCoordinatesType)
+{
+ FXSYS_assert(iRotate >= 0 && iRotate <= 3);
+ FX_BOOL bFlipX = (dwCoordinatesType & 0x01) != 0;
+ FX_BOOL bFlipY = (dwCoordinatesType & 0x02) != 0;
+ CFX_Matrix m;
+ m.Set((bFlipX ? -1.0f : 1.0f), 0, 0, (bFlipY ? -1.0f : 1.0f), 0, 0);
+ if (iRotate == 0 || iRotate == 2) {
+ m.a *= (FX_FLOAT)devicePageRect.width / docPageRect.width;
+ m.d *= (FX_FLOAT)devicePageRect.height / docPageRect.height;
+ } else {
+ m.a *= (FX_FLOAT)devicePageRect.height / docPageRect.width;
+ m.d *= (FX_FLOAT)devicePageRect.width / docPageRect.height;
+ }
+ m.Rotate(iRotate * 1.57079632675f);
+ switch (iRotate) {
+ case 0:
+ m.e = bFlipX ? (FX_FLOAT)devicePageRect.right() : (FX_FLOAT)devicePageRect.left;
+ m.f = bFlipY ? (FX_FLOAT)devicePageRect.bottom() : (FX_FLOAT)devicePageRect.top;
+ break;
+ case 1:
+ m.e = bFlipY ? (FX_FLOAT)devicePageRect.left : (FX_FLOAT)devicePageRect.right();
+ m.f = bFlipX ? (FX_FLOAT)devicePageRect.bottom() : (FX_FLOAT)devicePageRect.top;
+ break;
+ case 2:
+ m.e = bFlipX ? (FX_FLOAT)devicePageRect.left : (FX_FLOAT)devicePageRect.right();
+ m.f = bFlipY ? (FX_FLOAT)devicePageRect.top : (FX_FLOAT)devicePageRect.bottom();
+ break;
+ case 3:
+ m.e = bFlipY ? (FX_FLOAT)devicePageRect.right() : (FX_FLOAT)devicePageRect.left;
+ m.f = bFlipX ? (FX_FLOAT)devicePageRect.top : (FX_FLOAT)devicePageRect.bottom();
+ break;
+ default:
+ break;
+ }
+ pageMatrix = m;
+}
+IFDE_RenderContext* IFDE_RenderContext::Create()
+{
+ return FDE_New CFDE_RenderContext;
+}
+CFDE_RenderContext::CFDE_RenderContext()
+ : CFX_ThreadLock()
+ , m_eStatus(FDE_RENDERSTATUS_Reset)
+ , m_pRenderDevice(NULL)
+ , m_pSolidBrush(NULL)
+ , m_Transform()
+ , m_pCharPos(NULL)
+ , m_iCharPosCount(0)
+ , m_pIterator(NULL)
+{
+ m_Transform.Reset();
+}
+CFDE_RenderContext::~CFDE_RenderContext()
+{
+ StopRender();
+}
+FX_BOOL CFDE_RenderContext::StartRender(IFDE_RenderDevice *pRenderDevice, IFDE_CanvasSet *pCanvasSet, const CFX_Matrix &tmDoc2Device )
+{
+ if (m_pRenderDevice != NULL) {
+ return FALSE;
+ }
+ if (pRenderDevice == NULL) {
+ return FALSE;
+ }
+ if (pCanvasSet == NULL) {
+ return FALSE;
+ }
+ Lock();
+ m_eStatus = FDE_RENDERSTATUS_Paused;
+ m_pRenderDevice = pRenderDevice;
+ m_Transform = tmDoc2Device;
+ if (m_pIterator == NULL) {
+ m_pIterator = IFDE_VisualSetIterator::Create();
+ FXSYS_assert(m_pIterator != NULL);
+ }
+ FX_BOOL bAttach = m_pIterator->AttachCanvas(pCanvasSet) && m_pIterator->FilterObjects();
+ Unlock();
+ return bAttach;
+}
+FDE_RENDERSTATUS CFDE_RenderContext::DoRender(IFX_Pause *pPause)
+{
+ if (m_pRenderDevice == NULL) {
+ return FDE_RENDERSTATUS_Failed;
+ }
+ if (m_pIterator == NULL) {
+ return FDE_RENDERSTATUS_Failed;
+ }
+ Lock();
+ FDE_RENDERSTATUS eStatus = FDE_RENDERSTATUS_Paused;
+ CFX_Matrix rm;
+ rm.SetReverse(m_Transform);
+ CFX_RectF rtDocClip = m_pRenderDevice->GetClipRect();
+ if (rtDocClip.IsEmpty()) {
+ rtDocClip.left = rtDocClip.top = 0;
+ rtDocClip.width = (FX_FLOAT)m_pRenderDevice->GetWidth();
+ rtDocClip.height = (FX_FLOAT)m_pRenderDevice->GetHeight();
+ }
+ rm.TransformRect(rtDocClip);
+ IFDE_VisualSet *pVisualSet;
+ FDE_HVISUALOBJ hVisualObj;
+ CFX_RectF rtObj;
+ FX_INT32 iCount = 0;
+ while(TRUE) {
+ hVisualObj = m_pIterator->GetNext(pVisualSet);
+ if (hVisualObj == NULL || pVisualSet == NULL) {
+ eStatus = FDE_RENDERSTATUS_Done;
+ break;
+ }
+ rtObj.Empty();
+ pVisualSet->GetRect(hVisualObj, rtObj);
+ if (!rtDocClip.IntersectWith(rtObj)) {
+ continue;
+ }
+ switch (pVisualSet->GetType()) {
+ case FDE_VISUALOBJ_Text:
+ RenderText((IFDE_TextSet*)pVisualSet, hVisualObj);
+ iCount += 5;
+ break;
+ case FDE_VISUALOBJ_Path:
+ RenderPath((IFDE_PathSet*)pVisualSet, hVisualObj);
+ iCount += 20;
+ break;
+ case FDE_VISUALOBJ_Widget:
+ iCount += 10;
+ break;
+ case FDE_VISUALOBJ_Canvas:
+ FXSYS_assert(FALSE);
+ break;
+ default:
+ break;
+ }
+ if (iCount >= 100 && pPause != NULL && pPause->NeedToPauseNow()) {
+ eStatus = FDE_RENDERSTATUS_Paused;
+ break;
+ }
+ }
+ Unlock();
+ return m_eStatus = eStatus;
+}
+void CFDE_RenderContext::StopRender()
+{
+ Lock();
+ m_eStatus = FDE_RENDERSTATUS_Reset;
+ m_pRenderDevice = NULL;
+ m_Transform.Reset();
+ if (m_pIterator != NULL) {
+ m_pIterator->Release();
+ m_pIterator = NULL;
+ }
+ if (m_pSolidBrush != NULL) {
+ m_pSolidBrush->Release();
+ m_pSolidBrush = NULL;
+ }
+ if (m_pCharPos != NULL) {
+ FDE_Free(m_pCharPos);
+ m_pCharPos = NULL;
+ }
+ m_iCharPosCount = 0;
+ Unlock();
+}
+void CFDE_RenderContext::RenderText(IFDE_TextSet *pTextSet, FDE_HVISUALOBJ hText)
+{
+ FXSYS_assert(m_pRenderDevice != NULL);
+ FXSYS_assert(pTextSet != NULL && hText != NULL);
+ IFX_Font *pFont = pTextSet->GetFont(hText);
+ if (pFont == NULL) {
+ return;
+ }
+ FX_INT32 iCount = pTextSet->GetDisplayPos(hText, NULL, FALSE);
+ if (iCount < 1) {
+ return;
+ }
+ if (m_pSolidBrush == NULL) {
+ m_pSolidBrush = (IFDE_SolidBrush*)IFDE_Brush::Create(FDE_BRUSHTYPE_Solid);
+ if (m_pSolidBrush == NULL) {
+ return;
+ }
+ }
+ if (m_pCharPos == NULL) {
+ m_pCharPos = (FXTEXT_CHARPOS*)FDE_Alloc(sizeof(FXTEXT_CHARPOS) * iCount);
+ } else if (m_iCharPosCount < iCount) {
+ m_pCharPos = (FXTEXT_CHARPOS*)FDE_Realloc(m_pCharPos, sizeof(FXTEXT_CHARPOS) * iCount);
+ }
+ if (m_iCharPosCount < iCount) {
+ m_iCharPosCount = iCount;
+ }
+ iCount = pTextSet->GetDisplayPos(hText, m_pCharPos, FALSE);
+ FX_FLOAT fFontSize = pTextSet->GetFontSize(hText);
+ FX_ARGB dwColor = pTextSet->GetFontColor(hText);
+ m_pSolidBrush->SetColor(dwColor);
+ FDE_HDEVICESTATE hState;
+ FX_BOOL bClip = ApplyClip(pTextSet, hText, hState);
+ m_pRenderDevice->DrawString(m_pSolidBrush, pFont, m_pCharPos, iCount, fFontSize, &m_Transform);
+ if (bClip) {
+ RestoreClip(hState);
+ }
+}
+void CFDE_RenderContext::RenderPath(IFDE_PathSet *pPathSet, FDE_HVISUALOBJ hPath)
+{
+ FXSYS_assert(m_pRenderDevice != NULL);
+ FXSYS_assert(pPathSet != NULL && hPath != NULL);
+ IFDE_Path *pPath = pPathSet->GetPath(hPath);
+ if (pPath == NULL) {
+ return;
+ }
+ FDE_HDEVICESTATE hState;
+ FX_BOOL bClip = ApplyClip(pPathSet, hPath, hState);
+ FX_INT32 iRenderMode = pPathSet->GetRenderMode(hPath);
+ if (iRenderMode & FDE_PATHRENDER_Stroke) {
+ IFDE_Pen *pPen = pPathSet->GetPen(hPath);
+ FX_FLOAT fWidth = pPathSet->GetPenWidth(hPath);
+ if (pPen != NULL && fWidth > 0) {
+ m_pRenderDevice->DrawPath(pPen, fWidth, pPath, &m_Transform);
+ }
+ }
+ if (iRenderMode & FDE_PATHRENDER_Fill) {
+ IFDE_Brush *pBrush = pPathSet->GetBrush(hPath);
+ if (pBrush != NULL) {
+ m_pRenderDevice->FillPath(pBrush, pPath, &m_Transform);
+ }
+ }
+ if (bClip) {
+ RestoreClip(hState);
+ }
+}
+FX_BOOL CFDE_RenderContext::ApplyClip(IFDE_VisualSet *pVisualSet, FDE_HVISUALOBJ hObj, FDE_HDEVICESTATE &hState)
+{
+ CFX_RectF rtClip;
+ if (!pVisualSet->GetClip(hObj, rtClip)) {
+ return FALSE;
+ }
+ CFX_RectF rtObj;
+ pVisualSet->GetRect(hObj, rtObj);
+ rtClip.Offset(rtObj.left, rtObj.top);
+ m_Transform.TransformRect(rtClip);
+ const CFX_RectF &rtDevClip = m_pRenderDevice->GetClipRect();
+ rtClip.Intersect(rtDevClip);
+ hState = m_pRenderDevice->SaveState();
+ return m_pRenderDevice->SetClipRect(rtClip);
+}
+void CFDE_RenderContext::RestoreClip(FDE_HDEVICESTATE hState)
+{
+ m_pRenderDevice->RestoreState(hState);
+}
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