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77e6dbab33
It's `"`, not `''`.
Now the `text_next_line_show_string_set_spacing` gets called and logs
a TODO at page render time if `"` is used in a PDF:
warning: Rendering of feature not supported:
draw operation: text_next_line_show_string_set_spacing
It caused a parse error (also at page render time) previously:
[parse_value @ .../LibPDF/Parser.cpp:104]
Parser error at offset 611: Unexpected char """
187 lines
9.3 KiB
C++
187 lines
9.3 KiB
C++
/*
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* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Format.h>
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#include <AK/StringBuilder.h>
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#include <AK/Vector.h>
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#include <LibPDF/Value.h>
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#define ENUMERATE_OPERATORS(V) \
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V(SaveState, save_state, q) \
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V(RestoreState, restore_state, Q) \
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V(ConcatenateMatrix, concatenate_matrix, cm) \
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V(SetLineWidth, set_line_width, w) \
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V(SetLineCap, set_line_cap, J) \
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V(SetLineJoin, set_line_join, j) \
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V(SetMiterLimit, set_miter_limit, M) \
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V(SetDashPattern, set_dash_pattern, d) \
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V(SetColorRenderingIntent, set_color_rendering_intent, ri) \
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V(SetFlatnessTolerance, set_flatness_tolerance, i) \
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V(SetGraphicsStateFromDict, set_graphics_state_from_dict, gs) \
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V(PathMove, path_move, m) \
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V(PathLine, path_line, l) \
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V(PathCubicBezierCurve, path_cubic_bezier_curve, c) \
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V(PathCubicBezierCurveNoFirstControl, path_cubic_bezier_curve_no_first_control, v) \
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V(PathCubicBezierCurveNoSecondControl, path_cubic_bezier_curve_no_second_control, y) \
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V(PathClose, path_close, h) \
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V(PathAppendRect, path_append_rect, re) \
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V(PathStroke, path_stroke, S) \
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V(PathCloseAndStroke, path_close_and_stroke, s) \
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V(PathFillNonZero, path_fill_nonzero, f) \
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V(PathFillNonZeroDeprecated, path_fill_nonzero_deprecated, F) \
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V(PathFillEvenOdd, path_fill_evenodd, f*) \
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V(PathFillStrokeNonZero, path_fill_stroke_nonzero, B) \
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V(PathFillStrokeEvenOdd, path_fill_stroke_evenodd, B*) \
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V(PathCloseFillStrokeNonZero, path_close_fill_stroke_nonzero, b) \
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V(PathCloseFillStrokeEvenOdd, path_close_fill_stroke_evenodd, b*) \
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V(PathEnd, path_end, n) \
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V(PathIntersectClipNonZero, path_intersect_clip_nonzero, W) \
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V(PathIntersectClipEvenOdd, path_intersect_clip_evenodd, W*) \
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V(TextBegin, text_begin, BT) \
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V(TextEnd, text_end, ET) \
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V(TextSetCharSpace, text_set_char_space, Tc) \
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V(TextSetWordSpace, text_set_word_space, Tw) \
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V(TextSetHorizontalScale, text_set_horizontal_scale, Tz) \
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V(TextSetLeading, text_set_leading, TL) \
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V(TextSetFont, text_set_font, Tf) \
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V(TextSetRenderingMode, text_set_rendering_mode, Tr) \
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V(TextSetRise, text_set_rise, Ts) \
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V(TextNextLineOffset, text_next_line_offset, Td) \
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V(TextNextLineAndSetLeading, text_next_line_and_set_leading, TD) \
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V(TextSetMatrixAndLineMatrix, text_set_matrix_and_line_matrix, Tm) \
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V(TextNextLine, text_next_line, T*) \
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V(TextShowString, text_show_string, Tj) \
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V(TextShowStringArray, text_show_string_array, TJ) \
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V(Type3FontSetGlyphWidth, type3_font_set_glyph_width, d0) \
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V(Type3FontSetGlyphWidthAndBBox, type3_font_set_glyph_width_and_bbox, d1) \
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V(SetStrokingSpace, set_stroking_space, CS) \
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V(SetPaintingSpace, set_painting_space, cs) \
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V(SetStrokingColor, set_stroking_color, SC) \
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V(SetStrokingColorExtended, set_stroking_color_extended, SCN) \
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V(SetPaintingColor, set_painting_color, sc) \
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V(SetPaintingColorExtended, set_painting_color_extended, scn) \
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V(SetStrokingColorAndSpaceToGray, set_stroking_color_and_space_to_gray, G) \
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V(SetPaintingColorAndSpaceToGray, set_painting_color_and_space_to_gray, g) \
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V(SetStrokingColorAndSpaceToRGB, set_stroking_color_and_space_to_rgb, RG) \
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V(SetPaintingColorAndSpaceToRGB, set_painting_color_and_space_to_rgb, rg) \
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V(SetStrokingColorAndSpaceToCMYK, set_stroking_color_and_space_to_cmyk, K) \
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V(SetPaintingColorAndSpaceToCMYK, set_painting_color_and_space_to_cmyk, k) \
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V(Shade, shade, sh) \
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V(InlineImageBegin, inline_image_begin, BI) \
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V(InlineImageBeginData, inline_image_begin_data, ID) \
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V(InlineImageEnd, inline_image_end, EI) \
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V(PaintXObject, paint_xobject, Do) \
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V(MarkedContentPoint, marked_content_point, MP) \
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V(MarkedContentDesignate, marked_content_designate, DP) \
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V(MarkedContentBegin, marked_content_begin, BMC) \
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V(MarkedContentBeginWithPropertyList, marked_content_begin_with_property_list, BDC) \
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V(MarkedContentEnd, marked_content_end, EMC) \
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V(CompatibilityBegin, compatibility_begin, BX) \
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V(CompatibilityEnd, compatibility_end, EX)
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namespace PDF {
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enum class OperatorType {
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#define V(name, snake_name, symbol) name,
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ENUMERATE_OPERATORS(V)
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#undef V
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TextNextLineShowString,
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TextNextLineShowStringSetSpacing,
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};
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class Operator {
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public:
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static OperatorType operator_type_from_symbol(StringView symbol_string)
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{
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#define V(name, snake_name, symbol) \
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if (symbol_string == #symbol) \
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return OperatorType::name;
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ENUMERATE_OPERATORS(V)
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#undef V
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if (symbol_string == "'")
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return OperatorType::TextNextLineShowString;
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if (symbol_string == "\"")
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return OperatorType::TextNextLineShowStringSetSpacing;
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dbgln("unsupported graphics symbol {}", symbol_string);
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VERIFY_NOT_REACHED();
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}
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static char const* operator_name(OperatorType operator_type)
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{
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#define V(name, snake_name, symbol) \
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if (operator_type == OperatorType::name) \
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return #name;
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ENUMERATE_OPERATORS(V)
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#undef V
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if (operator_type == OperatorType::TextNextLineShowString)
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return "TextNextLineShowString";
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if (operator_type == OperatorType::TextNextLineShowStringSetSpacing)
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return "TextNextLineShowStringSetSpacing";
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VERIFY_NOT_REACHED();
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}
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static char const* operator_symbol(OperatorType operator_type)
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{
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#define V(name, snake_name, symbol) \
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if (operator_type == OperatorType::name) \
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return #symbol;
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ENUMERATE_OPERATORS(V)
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#undef V
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if (operator_type == OperatorType::TextNextLineShowString)
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return "'";
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if (operator_type == OperatorType::TextNextLineShowStringSetSpacing)
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return "\"";
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VERIFY_NOT_REACHED();
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}
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Operator(OperatorType operator_type, Vector<Value> arguments)
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: m_operator_type(operator_type)
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, m_arguments(move(arguments))
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{
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}
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[[nodiscard]] ALWAYS_INLINE OperatorType type() const { return m_operator_type; }
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[[nodiscard]] ALWAYS_INLINE Vector<Value> const& arguments() const { return m_arguments; }
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private:
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OperatorType m_operator_type;
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Vector<Value> m_arguments;
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};
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}
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namespace AK {
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template<>
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struct Formatter<PDF::Operator> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& format_builder, PDF::Operator const& op)
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{
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StringBuilder builder;
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builder.appendff("{} ({})",
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PDF::Operator::operator_name(op.type()),
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PDF::Operator::operator_symbol(op.type()));
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if (!op.arguments().is_empty()) {
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builder.append(" ["sv);
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for (auto& argument : op.arguments())
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builder.appendff(" {}", argument);
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builder.append(" ]"sv);
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}
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return Formatter<StringView>::format(format_builder, builder.to_deprecated_string());
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}
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};
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}
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