diff options
Diffstat (limited to 'xfa/src/fde/fde_gedevice.cpp')
| -rw-r--r-- | xfa/src/fde/fde_gedevice.cpp | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/xfa/src/fde/fde_gedevice.cpp b/xfa/src/fde/fde_gedevice.cpp deleted file mode 100644 index 13ae1bb330..0000000000 --- a/xfa/src/fde/fde_gedevice.cpp +++ /dev/null @@ -1,573 +0,0 @@ -// 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/src/fde/fde_gedevice.h" - -#include <algorithm> - -#include "xfa/src/fde/fde_brush.h" -#include "xfa/src/fde/fde_devbasic.h" -#include "xfa/src/fde/fde_geobject.h" -#include "xfa/src/fde/fde_image.h" -#include "xfa/src/fde/fde_pen.h" - -FX_BOOL FDE_GetStockHatchMask(int32_t iHatchStyle, CFX_DIBitmap& hatchMask) { - FDE_LPCHATCHDATA pData = FDE_DEVGetHatchData(iHatchStyle); - if (!pData) { - return FALSE; - } - hatchMask.Create(pData->iWidth, pData->iHeight, FXDIB_1bppMask); - FXSYS_memcpy(hatchMask.GetBuffer(), pData->MaskBits, - hatchMask.GetPitch() * pData->iHeight); - return TRUE; -} - -IFDE_RenderDevice* IFDE_RenderDevice::Create(CFX_DIBitmap* pBitmap, - FX_BOOL bRgbByteOrder) { - if (pBitmap == NULL) { - return NULL; - } - CFX_FxgeDevice* pDevice = new CFX_FxgeDevice; - pDevice->Attach(pBitmap, 0, bRgbByteOrder); - return new CFDE_FxgeDevice(pDevice, TRUE); -} -IFDE_RenderDevice* IFDE_RenderDevice::Create(CFX_RenderDevice* pDevice) { - return pDevice ? new CFDE_FxgeDevice(pDevice, FALSE) : nullptr; -} -CFDE_FxgeDevice::CFDE_FxgeDevice(CFX_RenderDevice* pDevice, - FX_BOOL bOwnerDevice) - : m_pDevice(pDevice), - m_bOwnerDevice(bOwnerDevice), - m_pCharPos(NULL), - m_iCharCount(0) { - FXSYS_assert(pDevice != NULL); - FX_RECT rt = m_pDevice->GetClipBox(); - m_rtClip.Set((FX_FLOAT)rt.left, (FX_FLOAT)rt.top, (FX_FLOAT)rt.Width(), - (FX_FLOAT)rt.Height()); -} -CFDE_FxgeDevice::~CFDE_FxgeDevice() { - FX_Free(m_pCharPos); - if (m_bOwnerDevice) - delete m_pDevice; -} -int32_t CFDE_FxgeDevice::GetWidth() const { - return m_pDevice->GetWidth(); -} -int32_t CFDE_FxgeDevice::GetHeight() const { - return m_pDevice->GetHeight(); -} -FDE_HDEVICESTATE CFDE_FxgeDevice::SaveState() { - m_pDevice->SaveState(); - return NULL; -} -void CFDE_FxgeDevice::RestoreState(FDE_HDEVICESTATE hState) { - m_pDevice->RestoreState(); - const FX_RECT& rt = m_pDevice->GetClipBox(); - m_rtClip.Set((FX_FLOAT)rt.left, (FX_FLOAT)rt.top, (FX_FLOAT)rt.Width(), - (FX_FLOAT)rt.Height()); -} -FX_BOOL CFDE_FxgeDevice::SetClipRect(const CFX_RectF& rtClip) { - m_rtClip = rtClip; - return m_pDevice->SetClip_Rect(FX_RECT((int32_t)FXSYS_floor(rtClip.left), - (int32_t)FXSYS_floor(rtClip.top), - (int32_t)FXSYS_ceil(rtClip.right()), - (int32_t)FXSYS_ceil(rtClip.bottom()))); -} -const CFX_RectF& CFDE_FxgeDevice::GetClipRect() { - return m_rtClip; -} -FX_BOOL CFDE_FxgeDevice::SetClipPath(const IFDE_Path* pClip) { - return FALSE; -} -IFDE_Path* CFDE_FxgeDevice::GetClipPath() const { - return NULL; -} -FX_FLOAT CFDE_FxgeDevice::GetDpiX() const { - return 96; -} -FX_FLOAT CFDE_FxgeDevice::GetDpiY() const { - return 96; -} -FX_BOOL CFDE_FxgeDevice::DrawImage(CFX_DIBSource* pDib, - const CFX_RectF* pSrcRect, - const CFX_RectF& dstRect, - const CFX_Matrix* pImgMatrix, - const CFX_Matrix* pDevMatrix) { - FXSYS_assert(pDib != NULL); - CFX_RectF srcRect; - if (pSrcRect) { - srcRect = *pSrcRect; - } else { - srcRect.Set(0, 0, (FX_FLOAT)pDib->GetWidth(), (FX_FLOAT)pDib->GetHeight()); - } - if (srcRect.IsEmpty()) { - return FALSE; - } - CFX_Matrix dib2fxdev; - if (pImgMatrix) { - dib2fxdev = *pImgMatrix; - } else { - dib2fxdev.SetIdentity(); - } - dib2fxdev.a = dstRect.width; - dib2fxdev.d = -dstRect.height; - dib2fxdev.e = dstRect.left; - dib2fxdev.f = dstRect.bottom(); - if (pDevMatrix) { - dib2fxdev.Concat(*pDevMatrix); - } - void* handle = NULL; - m_pDevice->StartDIBits(pDib, 255, 0, (const CFX_Matrix*)&dib2fxdev, 0, - handle); - while (m_pDevice->ContinueDIBits(handle, NULL)) { - } - m_pDevice->CancelDIBits(handle); - return handle != NULL; -} -FX_BOOL CFDE_FxgeDevice::DrawString(IFDE_Brush* pBrush, - IFX_Font* pFont, - const FXTEXT_CHARPOS* pCharPos, - int32_t iCount, - FX_FLOAT fFontSize, - const CFX_Matrix* pMatrix) { - FXSYS_assert(pBrush != NULL && pFont != NULL && pCharPos != NULL && - iCount > 0); - CFX_FontCache* pCache = CFX_GEModule::Get()->GetFontCache(); - CFX_Font* pFxFont = (CFX_Font*)pFont->GetDevFont(); - switch (pBrush->GetType()) { - case FDE_BRUSHTYPE_Solid: { - FX_ARGB argb = ((IFDE_SolidBrush*)pBrush)->GetColor(); - if ((pFont->GetFontStyles() & FX_FONTSTYLE_Italic) != 0 && - !pFxFont->IsItalic()) { - FXTEXT_CHARPOS* pCP = (FXTEXT_CHARPOS*)pCharPos; - FX_FLOAT* pAM; - for (int32_t i = 0; i < iCount; ++i) { - static const FX_FLOAT mc = 0.267949f; - pAM = pCP->m_AdjustMatrix; - pAM[2] = mc * pAM[0] + pAM[2]; - pAM[3] = mc * pAM[1] + pAM[3]; - pCP++; - } - } - FXTEXT_CHARPOS* pCP = (FXTEXT_CHARPOS*)pCharPos; - IFX_Font* pCurFont = NULL; - IFX_Font* pSTFont = NULL; - FXTEXT_CHARPOS* pCurCP = NULL; - int32_t iCurCount = 0; -#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - FX_DWORD dwFontStyle = pFont->GetFontStyles(); - CFX_Font FxFont; - CFX_SubstFont SubstFxFont; - FxFont.SetSubstFont(&SubstFxFont); - SubstFxFont.m_Weight = dwFontStyle & FX_FONTSTYLE_Bold ? 700 : 400; - SubstFxFont.m_WeightCJK = SubstFxFont.m_Weight; - SubstFxFont.m_ItalicAngle = dwFontStyle & FX_FONTSTYLE_Italic ? -12 : 0; - SubstFxFont.m_bItlicCJK = !!(dwFontStyle & FX_FONTSTYLE_Italic); -#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - for (int32_t i = 0; i < iCount; ++i) { - pSTFont = pFont->GetSubstFont((int32_t)pCP->m_GlyphIndex); - pCP->m_GlyphIndex &= 0x00FFFFFF; - pCP->m_bFontStyle = FALSE; - if (pCurFont != pSTFont) { - if (pCurFont != NULL) { - pFxFont = (CFX_Font*)pCurFont->GetDevFont(); -#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - FxFont.SetFace(pFxFont->GetFace()); - m_pDevice->DrawNormalText(iCurCount, pCurCP, &FxFont, pCache, - -fFontSize, (const CFX_Matrix*)pMatrix, - argb, FXTEXT_CLEARTYPE); -#else - m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, pCache, - -fFontSize, (const CFX_Matrix*)pMatrix, - argb, FXTEXT_CLEARTYPE); -#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - } - pCurFont = pSTFont; - pCurCP = pCP; - iCurCount = 1; - } else { - iCurCount++; - } - pCP++; - } - if (pCurFont != NULL && iCurCount) { - pFxFont = (CFX_Font*)pCurFont->GetDevFont(); -#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - FxFont.SetFace(pFxFont->GetFace()); - FX_BOOL bRet = m_pDevice->DrawNormalText( - iCurCount, pCurCP, &FxFont, pCache, -fFontSize, - (const CFX_Matrix*)pMatrix, argb, FXTEXT_CLEARTYPE); - FxFont.SetSubstFont(nullptr); - FxFont.SetFace(nullptr); - return bRet; -#else - return m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, pCache, - -fFontSize, (const CFX_Matrix*)pMatrix, - argb, FXTEXT_CLEARTYPE); -#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - } -#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - FxFont.SetSubstFont(nullptr); - FxFont.SetFace(nullptr); -#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ - return TRUE; - } break; - default: - return FALSE; - } -} -FX_BOOL CFDE_FxgeDevice::DrawBezier(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_PointF& pt1, - const CFX_PointF& pt2, - const CFX_PointF& pt3, - const CFX_PointF& pt4, - const CFX_Matrix* pMatrix) { - CFX_PointsF points; - points.Add(pt1); - points.Add(pt2); - points.Add(pt3); - points.Add(pt4); - CFDE_Path path; - path.AddBezier(points); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawCurve(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_PointsF& points, - FX_BOOL bClosed, - FX_FLOAT fTension, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddCurve(points, bClosed, fTension); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawEllipse(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_RectF& rect, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddEllipse(rect); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawLines(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_PointsF& points, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddLines(points); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawLine(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_PointF& pt1, - const CFX_PointF& pt2, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddLine(pt1, pt2); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawPath(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const IFDE_Path* pPath, - const CFX_Matrix* pMatrix) { - CFDE_Path* pGePath = (CFDE_Path*)pPath; - if (pGePath == NULL) { - return FALSE; - } - CFX_GraphStateData graphState; - if (!CreatePen(pPen, fPenWidth, graphState)) { - return FALSE; - } - return m_pDevice->DrawPath(&pGePath->m_Path, (const CFX_Matrix*)pMatrix, - &graphState, 0, pPen->GetColor(), 0); -} -FX_BOOL CFDE_FxgeDevice::DrawPolygon(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_PointsF& points, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddPolygon(points); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::DrawRectangle(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - const CFX_RectF& rect, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddRectangle(rect); - return DrawPath(pPen, fPenWidth, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::FillClosedCurve(IFDE_Brush* pBrush, - const CFX_PointsF& points, - FX_FLOAT fTension, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddCurve(points, TRUE, fTension); - return FillPath(pBrush, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::FillEllipse(IFDE_Brush* pBrush, - const CFX_RectF& rect, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddEllipse(rect); - return FillPath(pBrush, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::FillPolygon(IFDE_Brush* pBrush, - const CFX_PointsF& points, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddPolygon(points); - return FillPath(pBrush, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::FillRectangle(IFDE_Brush* pBrush, - const CFX_RectF& rect, - const CFX_Matrix* pMatrix) { - CFDE_Path path; - path.AddRectangle(rect); - return FillPath(pBrush, &path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::CreatePen(IFDE_Pen* pPen, - FX_FLOAT fPenWidth, - CFX_GraphStateData& graphState) { - if (pPen == NULL) { - return FALSE; - } - graphState.m_LineCap = (CFX_GraphStateData::LineCap)pPen->GetLineCap(); - graphState.m_LineJoin = (CFX_GraphStateData::LineJoin)pPen->GetLineJoin(); - graphState.m_LineWidth = fPenWidth; - graphState.m_MiterLimit = pPen->GetMiterLimit(); - graphState.m_DashPhase = pPen->GetDashPhase(); - CFX_FloatArray dashArray; - switch (pPen->GetDashStyle()) { - case FDE_DASHSTYLE_Dash: - dashArray.Add(3); - dashArray.Add(1); - break; - case FDE_DASHSTYLE_Dot: - dashArray.Add(1); - dashArray.Add(1); - break; - case FDE_DASHSTYLE_DashDot: - dashArray.Add(3); - dashArray.Add(1); - dashArray.Add(1); - dashArray.Add(1); - break; - case FDE_DASHSTYLE_DashDotDot: - dashArray.Add(3); - dashArray.Add(1); - dashArray.Add(1); - dashArray.Add(1); - dashArray.Add(1); - dashArray.Add(1); - break; - case FDE_DASHSTYLE_Customized: - pPen->GetDashArray(dashArray); - break; - } - int32_t iDashCount = dashArray.GetSize(); - if (iDashCount > 0) { - graphState.SetDashCount(iDashCount); - for (int32_t i = 0; i < iDashCount; ++i) { - graphState.m_DashArray[i] = dashArray[i] * fPenWidth; - } - } - return TRUE; -} -typedef FX_BOOL (CFDE_FxgeDevice::*pfFillPath)(IFDE_Brush* pBrush, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix); -static const pfFillPath gs_FillPath[] = { - &CFDE_FxgeDevice::FillSolidPath, &CFDE_FxgeDevice::FillHatchPath, - &CFDE_FxgeDevice::FillTexturePath, &CFDE_FxgeDevice::FillLinearGradientPath, -}; -FX_BOOL CFDE_FxgeDevice::FillPath(IFDE_Brush* pBrush, - const IFDE_Path* pPath, - const CFX_Matrix* pMatrix) { - CFDE_Path* pGePath = (CFDE_Path*)pPath; - if (pGePath == NULL) { - return FALSE; - } - if (pBrush == NULL) { - return FALSE; - } - int32_t iType = pBrush->GetType(); - if (iType < 0 || iType > FDE_BRUSHTYPE_MAX) { - return FALSE; - } - return (this->*gs_FillPath[iType])(pBrush, &pGePath->m_Path, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::FillSolidPath(IFDE_Brush* pBrush, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix) { - FXSYS_assert(pPath && pBrush && pBrush->GetType() == FDE_BRUSHTYPE_Solid); - IFDE_SolidBrush* pSolidBrush = (IFDE_SolidBrush*)pBrush; - return m_pDevice->DrawPath(pPath, (const CFX_Matrix*)pMatrix, NULL, - pSolidBrush->GetColor(), 0, FXFILL_WINDING); -} -FX_BOOL CFDE_FxgeDevice::FillHatchPath(IFDE_Brush* pBrush, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix) { - FXSYS_assert(pPath && pBrush && pBrush->GetType() == FDE_BRUSHTYPE_Hatch); - IFDE_HatchBrush* pHatchBrush = (IFDE_HatchBrush*)pBrush; - int32_t iStyle = pHatchBrush->GetHatchStyle(); - if (iStyle < FDE_HATCHSTYLE_Min || iStyle > FDE_HATCHSTYLE_Max) { - return FALSE; - } - CFX_DIBitmap mask; - if (!FDE_GetStockHatchMask(iStyle, mask)) { - return FALSE; - } - FX_ARGB dwForeColor = pHatchBrush->GetColor(TRUE); - FX_ARGB dwBackColor = pHatchBrush->GetColor(FALSE); - CFX_FloatRect rectf = pPath->GetBoundingBox(); - if (pMatrix) { - rectf.Transform((const CFX_Matrix*)pMatrix); - } - FX_RECT rect(FXSYS_round(rectf.left), FXSYS_round(rectf.top), - FXSYS_round(rectf.right), FXSYS_round(rectf.bottom)); - m_pDevice->SaveState(); - m_pDevice->StartRendering(); - m_pDevice->SetClip_PathFill(pPath, (const CFX_Matrix*)pMatrix, - FXFILL_WINDING); - m_pDevice->FillRect(&rect, dwBackColor); - for (int32_t j = rect.bottom; j < rect.top; j += mask.GetHeight()) - for (int32_t i = rect.left; i < rect.right; i += mask.GetWidth()) { - m_pDevice->SetBitMask(&mask, i, j, dwForeColor); - } - m_pDevice->EndRendering(); - m_pDevice->RestoreState(); - return TRUE; -} -FX_BOOL CFDE_FxgeDevice::FillTexturePath(IFDE_Brush* pBrush, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix) { - FXSYS_assert(pPath && pBrush && pBrush->GetType() == FDE_BRUSHTYPE_Texture); - IFDE_TextureBrush* pTextureBrush = static_cast<IFDE_TextureBrush*>(pBrush); - IFDE_Image* pImage = pTextureBrush->GetImage(); - if (!pImage) - return FALSE; - - CFX_Size size(pImage->GetImageWidth(), pImage->GetImageHeight()); - CFX_DIBitmap bmp; - bmp.Create(size.x, size.y, FXDIB_Argb); - if (!pImage->StartLoadImage(&bmp, 0, 0, size.x, size.y, 0, 0, size.x, - size.y)) { - return FALSE; - } - if (pImage->DoLoadImage() < 100) { - return FALSE; - } - pImage->StopLoadImage(); - return WrapTexture(pTextureBrush->GetWrapMode(), &bmp, pPath, pMatrix); -} -FX_BOOL CFDE_FxgeDevice::WrapTexture(int32_t iWrapMode, - const CFX_DIBitmap* pBitmap, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix) { - CFX_FloatRect rectf = pPath->GetBoundingBox(); - if (pMatrix) { - rectf.Transform((const CFX_Matrix*)pMatrix); - } - FX_RECT rect(FXSYS_round(rectf.left), FXSYS_round(rectf.top), - FXSYS_round(rectf.right), FXSYS_round(rectf.bottom)); - rect.Normalize(); - if (rect.IsEmpty()) { - return FALSE; - } - m_pDevice->SaveState(); - m_pDevice->StartRendering(); - m_pDevice->SetClip_PathFill(pPath, (const CFX_Matrix*)pMatrix, - FXFILL_WINDING); - switch (iWrapMode) { - case FDE_WRAPMODE_Tile: - case FDE_WRAPMODE_TileFlipX: - case FDE_WRAPMODE_TileFlipY: - case FDE_WRAPMODE_TileFlipXY: { - FX_BOOL bFlipX = iWrapMode == FDE_WRAPMODE_TileFlipXY || - iWrapMode == FDE_WRAPMODE_TileFlipX; - FX_BOOL bFlipY = iWrapMode == FDE_WRAPMODE_TileFlipXY || - iWrapMode == FDE_WRAPMODE_TileFlipY; - const CFX_DIBitmap* pFlip[2][2]; - pFlip[0][0] = pBitmap; - pFlip[0][1] = bFlipX ? pBitmap->FlipImage(TRUE, FALSE) : pBitmap; - pFlip[1][0] = bFlipY ? pBitmap->FlipImage(FALSE, TRUE) : pBitmap; - pFlip[1][1] = - (bFlipX || bFlipY) ? pBitmap->FlipImage(bFlipX, bFlipY) : pBitmap; - int32_t iCounterY = 0; - for (int32_t j = rect.top; j < rect.bottom; j += pBitmap->GetHeight()) { - int32_t indexY = iCounterY++ % 2; - int32_t iCounterX = 0; - for (int32_t i = rect.left; i < rect.right; i += pBitmap->GetWidth()) { - int32_t indexX = iCounterX++ % 2; - m_pDevice->SetDIBits(pFlip[indexY][indexX], i, j); - } - } - if (pFlip[0][1] != pFlip[0][0]) { - delete pFlip[0][1]; - } - if (pFlip[1][0] != pFlip[0][0]) { - delete pFlip[1][0]; - } - if (pFlip[1][1] != pFlip[0][0]) { - delete pFlip[1][1]; - } - } break; - case FDE_WRAPMODE_Clamp: { - m_pDevice->SetDIBits(pBitmap, rect.left, rect.bottom); - } break; - } - m_pDevice->EndRendering(); - m_pDevice->RestoreState(); - return TRUE; -} -FX_BOOL CFDE_FxgeDevice::FillLinearGradientPath(IFDE_Brush* pBrush, - const CFX_PathData* pPath, - const CFX_Matrix* pMatrix) { - FXSYS_assert(pPath && pBrush && - pBrush->GetType() == FDE_BRUSHTYPE_LinearGradient); - IFDE_LinearGradientBrush* pLinearBrush = (IFDE_LinearGradientBrush*)pBrush; - CFX_PointF pt0, pt1; - pLinearBrush->GetLinearPoints(pt0, pt1); - CFX_VectorF fDiagonal(pt0, pt1); - FX_FLOAT fTheta = FXSYS_atan2(fDiagonal.y, fDiagonal.x); - FX_FLOAT fLength = fDiagonal.Length(); - FX_FLOAT fTotalX = fLength / FXSYS_cos(fTheta); - FX_FLOAT fTotalY = fLength / FXSYS_cos(FX_PI / 2 - fTheta); - FX_FLOAT fSteps = std::max(fTotalX, fTotalY); - FX_FLOAT dx = fTotalX / fSteps; - FX_FLOAT dy = fTotalY / fSteps; - FX_ARGB cr0, cr1; - pLinearBrush->GetLinearColors(cr0, cr1); - FX_FLOAT a0 = FXARGB_A(cr0); - FX_FLOAT r0 = FXARGB_R(cr0); - FX_FLOAT g0 = FXARGB_G(cr0); - FX_FLOAT b0 = FXARGB_B(cr0); - FX_FLOAT da = (FXARGB_A(cr1) - a0) / fSteps; - FX_FLOAT dr = (FXARGB_R(cr1) - r0) / fSteps; - FX_FLOAT dg = (FXARGB_G(cr1) - g0) / fSteps; - FX_FLOAT db = (FXARGB_B(cr1) - b0) / fSteps; - CFX_DIBitmap bmp; - bmp.Create(FXSYS_round(FXSYS_fabs(fDiagonal.x)), - FXSYS_round(FXSYS_fabs(fDiagonal.y)), FXDIB_Argb); - CFX_FxgeDevice dev; - dev.Attach(&bmp); - pt1 = pt0; - int32_t iSteps = FXSYS_round(FXSYS_ceil(fSteps)); - while (--iSteps >= 0) { - cr0 = ArgbEncode(FXSYS_round(a0), FXSYS_round(r0), FXSYS_round(g0), - FXSYS_round(b0)); - dev.DrawCosmeticLine(pt0.x, pt0.y, pt1.x, pt1.y, cr0); - pt1.x += dx; - pt0.y += dy; - a0 += da; - r0 += dr; - g0 += dg; - b0 += db; - } - return WrapTexture(pLinearBrush->GetWrapMode(), &bmp, pPath, pMatrix); -} |