// 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 // Original code is licensed as follows: /* * Copyright 2011 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "fxbarcode/oned/BC_OneDimWriter.h" #include <algorithm> #include <memory> #include <vector> #include "core/fxge/cfx_defaultrenderdevice.h" #include "core/fxge/cfx_font.h" #include "core/fxge/cfx_graphstatedata.h" #include "core/fxge/cfx_pathdata.h" #include "core/fxge/cfx_renderdevice.h" #include "core/fxge/cfx_unicodeencodingex.h" #include "fxbarcode/BC_Writer.h" #include "third_party/base/ptr_util.h" CBC_OneDimWriter::CBC_OneDimWriter() { m_locTextLoc = BC_TEXT_LOC_BELOWEMBED; m_bPrintChecksum = true; m_iDataLenth = 0; m_bCalcChecksum = false; m_pFont = nullptr; m_fFontSize = 10; m_iFontStyle = 0; m_fontColor = 0xff000000; m_iContentLen = 0; m_bLeftPadding = false; m_bRightPadding = false; } CBC_OneDimWriter::~CBC_OneDimWriter() {} void CBC_OneDimWriter::SetPrintChecksum(bool checksum) { m_bPrintChecksum = checksum; } void CBC_OneDimWriter::SetDataLength(int32_t length) { m_iDataLenth = length; } void CBC_OneDimWriter::SetCalcChecksum(bool state) { m_bCalcChecksum = state; } bool CBC_OneDimWriter::SetFont(CFX_Font* cFont) { if (!cFont) return false; m_pFont = cFont; return true; } void CBC_OneDimWriter::SetFontSize(float size) { m_fFontSize = size; } void CBC_OneDimWriter::SetFontStyle(int32_t style) { m_iFontStyle = style; } void CBC_OneDimWriter::SetFontColor(FX_ARGB color) { m_fontColor = color; } wchar_t CBC_OneDimWriter::Upper(wchar_t ch) { if (ch >= 'a' && ch <= 'z') { ch = ch - ('a' - 'A'); } return ch; } uint8_t* CBC_OneDimWriter::EncodeWithHint(const ByteString& contents, BCFORMAT format, int32_t& outWidth, int32_t& outHeight, int32_t hints) { outHeight = 1; return EncodeImpl(contents, outWidth); } uint8_t* CBC_OneDimWriter::Encode(const ByteString& contents, BCFORMAT format, int32_t& outWidth, int32_t& outHeight) { return EncodeWithHint(contents, format, outWidth, outHeight, 0); } int32_t CBC_OneDimWriter::AppendPattern(uint8_t* target, int32_t pos, const int8_t* pattern, int32_t patternLength, int32_t startColor, int32_t& e) { if (startColor != 0 && startColor != 1) { e = BCExceptionValueMustBeEither0or1; return 0; } uint8_t color = (uint8_t)startColor; int32_t numAdded = 0; for (int32_t i = 0; i < patternLength; i++) { for (int32_t j = 0; j < pattern[i]; j++) { target[pos++] = color; numAdded += 1; } color ^= 1; } return numAdded; } void CBC_OneDimWriter::CalcTextInfo(const ByteString& text, FXTEXT_CHARPOS* charPos, CFX_Font* cFont, float geWidth, int32_t fontSize, float& charsLen) { std::unique_ptr<CFX_UnicodeEncodingEx> encoding = FX_CreateFontEncodingEx(cFont, FXFM_ENCODING_NONE); size_t length = text.GetLength(); uint32_t* pCharCode = FX_Alloc(uint32_t, text.GetLength()); float charWidth = 0; for (size_t j = 0; j < length; j++) { pCharCode[j] = encoding->CharCodeFromUnicode(text[j]); int32_t glyp_code = encoding->GlyphFromCharCode(pCharCode[j]); int32_t glyp_value = cFont->GetGlyphWidth(glyp_code); float temp = (float)((glyp_value)*fontSize / 1000.0); charWidth += temp; } charsLen = charWidth; float leftPositon = (float)(geWidth - charsLen) / 2.0f; if (leftPositon < 0 && geWidth == 0) { leftPositon = 0; } float penX = 0.0; float penY = (float)abs(cFont->GetDescent()) * (float)fontSize / 1000.0f; float left = leftPositon; float top = 0.0; charPos[0].m_Origin = CFX_PointF(penX + left, penY + top); charPos[0].m_GlyphIndex = encoding->GlyphFromCharCode(pCharCode[0]); charPos[0].m_FontCharWidth = cFont->GetGlyphWidth(charPos[0].m_GlyphIndex); #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ charPos[0].m_ExtGID = charPos[0].m_GlyphIndex; #endif penX += (float)(charPos[0].m_FontCharWidth) * (float)fontSize / 1000.0f; for (size_t i = 1; i < length; i++) { charPos[i].m_Origin = CFX_PointF(penX + left, penY + top); charPos[i].m_GlyphIndex = encoding->GlyphFromCharCode(pCharCode[i]); charPos[i].m_FontCharWidth = cFont->GetGlyphWidth(charPos[i].m_GlyphIndex); #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ charPos[i].m_ExtGID = charPos[i].m_GlyphIndex; #endif penX += (float)(charPos[i].m_FontCharWidth) * (float)fontSize / 1000.0f; } FX_Free(pCharCode); } void CBC_OneDimWriter::ShowDeviceChars(CFX_RenderDevice* device, const CFX_Matrix* matrix, const ByteString str, float geWidth, FXTEXT_CHARPOS* pCharPos, float locX, float locY, int32_t barWidth) { int32_t iFontSize = (int32_t)fabs(m_fFontSize); int32_t iTextHeight = iFontSize + 1; CFX_FloatRect rect((float)locX, (float)locY, (float)(locX + geWidth), (float)(locY + iTextHeight)); if (geWidth != m_Width) { rect.right -= 1; } FX_RECT re = matrix->TransformRect(rect).GetOuterRect(); device->FillRect(&re, m_backgroundColor); CFX_Matrix affine_matrix(1.0, 0.0, 0.0, -1.0, (float)locX, (float)(locY + iFontSize)); if (matrix) { affine_matrix.Concat(*matrix); } device->DrawNormalText(str.GetLength(), pCharPos, m_pFont.Get(), static_cast<float>(iFontSize), &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); } bool CBC_OneDimWriter::ShowChars(const WideStringView& contents, CFX_RenderDevice* device, const CFX_Matrix* matrix, int32_t barWidth, int32_t multiple) { if (!device || !m_pFont) return false; ByteString str = FX_UTF8Encode(contents); int32_t iLen = str.GetLength(); std::vector<FXTEXT_CHARPOS> charpos(iLen); float charsLen = 0; float geWidth = 0; if (m_locTextLoc == BC_TEXT_LOC_ABOVEEMBED || m_locTextLoc == BC_TEXT_LOC_BELOWEMBED) { geWidth = 0; } else if (m_locTextLoc == BC_TEXT_LOC_ABOVE || m_locTextLoc == BC_TEXT_LOC_BELOW) { geWidth = (float)barWidth; } int32_t iFontSize = (int32_t)fabs(m_fFontSize); int32_t iTextHeight = iFontSize + 1; CalcTextInfo(str, charpos.data(), m_pFont.Get(), geWidth, iFontSize, charsLen); if (charsLen < 1) return true; int32_t locX = 0; int32_t locY = 0; switch (m_locTextLoc) { case BC_TEXT_LOC_ABOVEEMBED: locX = (int32_t)(barWidth - charsLen) / 2; locY = 0; geWidth = charsLen; break; case BC_TEXT_LOC_ABOVE: locX = 0; locY = 0; geWidth = (float)barWidth; break; case BC_TEXT_LOC_BELOWEMBED: locX = (int32_t)(barWidth - charsLen) / 2; locY = m_Height - iTextHeight; geWidth = charsLen; break; case BC_TEXT_LOC_BELOW: default: locX = 0; locY = m_Height - iTextHeight; geWidth = (float)barWidth; break; } ShowDeviceChars(device, matrix, str, geWidth, charpos.data(), (float)locX, (float)locY, barWidth); return true; } bool CBC_OneDimWriter::RenderDeviceResult(CFX_RenderDevice* device, const CFX_Matrix* matrix, const WideStringView& contents) { if (m_output.empty()) return false; CFX_GraphStateData stateData; CFX_PathData path; path.AppendRect(0, 0, static_cast<float>(m_Width), static_cast<float>(m_Height)); device->DrawPath(&path, matrix, &stateData, m_backgroundColor, m_backgroundColor, FXFILL_ALTERNATE); CFX_Matrix scaledMatrix(m_outputHScale, 0.0, 0.0, static_cast<float>(m_Height), 0.0, 0.0); scaledMatrix.Concat(*matrix); for (auto& rect : m_output) { CFX_GraphStateData data; device->DrawPath(&rect, &scaledMatrix, &data, m_barColor, 0, FXFILL_WINDING); } return m_locTextLoc == BC_TEXT_LOC_NONE || !contents.Contains(' ') || ShowChars(contents, device, matrix, m_barWidth, m_multiple); } bool CBC_OneDimWriter::RenderResult(const WideStringView& contents, uint8_t* code, int32_t codeLength) { if (codeLength < 1) return false; m_ModuleHeight = std::max(m_ModuleHeight, 20); const int32_t codeOldLength = codeLength; const int32_t leftPadding = m_bLeftPadding ? 7 : 0; const int32_t rightPadding = m_bRightPadding ? 7 : 0; codeLength += leftPadding; codeLength += rightPadding; m_outputHScale = m_Width > 0 ? static_cast<float>(m_Width) / static_cast<float>(codeLength) : 1.0; float dataLengthScale = 1.0; if (m_iDataLenth > 0 && contents.GetLength() != 0) dataLengthScale = float(contents.GetLength()) / float(m_iDataLenth); if (m_iDataLenth > 0 && contents.GetLength() == 0) dataLengthScale = float(1) / float(m_iDataLenth); m_multiple = 1; const int32_t outputHeight = 1; const int32_t outputWidth = codeLength; m_barWidth = m_Width; m_output.clear(); for (int32_t inputX = 0, outputX = leftPadding * m_multiple; inputX < codeOldLength; ++inputX, outputX += m_multiple) { if (code[inputX] != 1) continue; if (outputX >= outputWidth) return true; if (outputX + m_multiple > outputWidth && outputWidth - outputX > 0) { RenderVerticalBars(outputX, outputWidth - outputX, outputHeight); return true; } RenderVerticalBars(outputX, m_multiple, outputHeight); } return true; } void CBC_OneDimWriter::RenderVerticalBars(int32_t outputX, int32_t width, int32_t height) { for (int i = 0; i < width; ++i) { float x = outputX + i; CFX_PathData rect; rect.AppendRect(x, 0.0f, x + 1, static_cast<float>(height)); m_output.push_back(rect); } } WideString CBC_OneDimWriter::RenderTextContents( const WideStringView& contents) { return WideString(); }