mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 20:07:35 +00:00
LibPDF: Add a bitmap renderer
This commit adds the Renderer class, which is responsible for rendering a page into a Gfx::Bitmap. There are many improvements to make here, but this is a great start!
This commit is contained in:
Matthew Olsson
Andreas Kling
parent
d6a9b41bac
commit
4479c1bff0
4 changed files with 655 additions and 4 deletions
|
|
@ -3,8 +3,9 @@ set(SOURCES
|
|||
Document.cpp
|
||||
Object.cpp
|
||||
Parser.cpp
|
||||
Renderer.cpp
|
||||
Value.cpp
|
||||
)
|
||||
|
||||
serenity_lib(LibPDF pdf)
|
||||
target_link_libraries(LibPDF LibC LibCore)
|
||||
target_link_libraries(LibPDF LibC LibCore LibIPC LibGfx)
|
||||
|
|
|
|||
|
|
@ -29,9 +29,6 @@ public:
|
|||
ENUMERATE_OBJECT_TYPES(DEFINE_ID)
|
||||
#undef DEFINE_ID
|
||||
|
||||
template<typename T>
|
||||
NonnullRefPtr<T> resolved_to(Document*) const;
|
||||
|
||||
virtual const char* type_name() const = 0;
|
||||
virtual String to_string(int indent) const = 0;
|
||||
|
||||
|
|
|
|||
399
Userland/Libraries/LibPDF/Renderer.cpp
Normal file
399
Userland/Libraries/LibPDF/Renderer.cpp
Normal file
|
|
@ -0,0 +1,399 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <AK/Utf8View.h>
|
||||
#include <LibPDF/Renderer.h>
|
||||
#include <ctype.h>
|
||||
#include <math.h>
|
||||
|
||||
namespace PDF {
|
||||
|
||||
void Renderer::render(Document& document, const Page& page, RefPtr<Gfx::Bitmap> bitmap)
|
||||
{
|
||||
Renderer(document, page, bitmap).render();
|
||||
}
|
||||
|
||||
Renderer::Renderer(RefPtr<Document> document, const Page& page, RefPtr<Gfx::Bitmap> bitmap)
|
||||
: m_document(document)
|
||||
, m_bitmap(bitmap)
|
||||
, m_page(page)
|
||||
, m_painter(*bitmap)
|
||||
{
|
||||
auto media_box = m_page.media_box;
|
||||
|
||||
m_userspace_matrix.translate(media_box.lower_left_x, media_box.lower_left_y);
|
||||
|
||||
float width = media_box.upper_right_x - media_box.lower_left_x;
|
||||
float height = media_box.upper_right_y - media_box.lower_left_y;
|
||||
float scale_x = static_cast<float>(bitmap->width()) / width;
|
||||
float scale_y = static_cast<float>(bitmap->height()) / height;
|
||||
m_userspace_matrix.scale(scale_x, scale_y);
|
||||
|
||||
m_graphics_state_stack.append(GraphicsState { m_userspace_matrix });
|
||||
|
||||
m_bitmap->fill(Gfx::Color::NamedColor::White);
|
||||
}
|
||||
|
||||
void Renderer::render()
|
||||
{
|
||||
// Use our own vector, as the /Content can be an array with multiple
|
||||
// streams which gets concatenated
|
||||
// FIXME: Text operators are supposed to only have effects on the current
|
||||
// stream object. Do the text operators treat this concatenated stream
|
||||
// as one stream or multiple?
|
||||
ByteBuffer byte_buffer;
|
||||
|
||||
if (m_page.contents->is_array()) {
|
||||
auto contents = object_cast<ArrayObject>(m_page.contents);
|
||||
for (auto& ref : *contents) {
|
||||
auto bytes = m_document->resolve_to<StreamObject>(ref)->bytes();
|
||||
byte_buffer.append(bytes.data(), bytes.size());
|
||||
}
|
||||
} else {
|
||||
VERIFY(m_page.contents->is_stream());
|
||||
auto bytes = object_cast<StreamObject>(m_page.contents)->bytes();
|
||||
byte_buffer.append(bytes.data(), bytes.size());
|
||||
}
|
||||
|
||||
auto commands = Parser::parse_graphics_commands(byte_buffer);
|
||||
|
||||
for (auto& command : commands)
|
||||
handle_command(command);
|
||||
}
|
||||
|
||||
void Renderer::handle_command(const Command& command)
|
||||
{
|
||||
switch (command.command_type()) {
|
||||
#define V(name, snake_name, symbol) \
|
||||
case CommandType::name: \
|
||||
return handle_##snake_name(command.arguments());
|
||||
ENUMERATE_COMMANDS(V)
|
||||
#undef V
|
||||
case CommandType::TextNextLineShowString:
|
||||
return handle_text_next_line_show_string(command.arguments());
|
||||
}
|
||||
}
|
||||
|
||||
void Renderer::handle_save_state(const Vector<Value>&)
|
||||
{
|
||||
m_graphics_state_stack.append(state());
|
||||
}
|
||||
|
||||
void Renderer::handle_restore_state(const Vector<Value>&)
|
||||
{
|
||||
m_graphics_state_stack.take_last();
|
||||
}
|
||||
|
||||
void Renderer::handle_concatenate_matrix(const Vector<Value>& args)
|
||||
{
|
||||
Gfx::AffineTransform new_transform(
|
||||
args[0].to_float(),
|
||||
args[1].to_float(),
|
||||
args[2].to_float(),
|
||||
args[3].to_float(),
|
||||
args[4].to_float(),
|
||||
args[5].to_float());
|
||||
|
||||
state().ctm.multiply(new_transform);
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
}
|
||||
|
||||
void Renderer::handle_set_line_width(const Vector<Value>& args)
|
||||
{
|
||||
state().line_width = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_set_line_cap(const Vector<Value>& args)
|
||||
{
|
||||
state().line_cap_style = static_cast<LineCapStyle>(args[0].as_int());
|
||||
}
|
||||
|
||||
void Renderer::handle_set_line_join(const Vector<Value>& args)
|
||||
{
|
||||
state().line_join_style = static_cast<LineJoinStyle>(args[0].as_int());
|
||||
}
|
||||
|
||||
void Renderer::handle_set_miter_limit(const Vector<Value>& args)
|
||||
{
|
||||
state().miter_limit = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_set_dash_pattern(const Vector<Value>& args)
|
||||
{
|
||||
auto dash_array = m_document->resolve_to<ArrayObject>(args[0]);
|
||||
Vector<int> pattern;
|
||||
for (auto& element : *dash_array)
|
||||
pattern.append(element.as_int());
|
||||
state().line_dash_pattern = LineDashPattern { pattern, args[1].as_int() };
|
||||
}
|
||||
|
||||
void Renderer::handle_path_begin(const Vector<Value>&)
|
||||
{
|
||||
m_path = Gfx::Path();
|
||||
}
|
||||
|
||||
void Renderer::handle_path_end(const Vector<Value>&)
|
||||
{
|
||||
}
|
||||
|
||||
void Renderer::handle_path_line(const Vector<Value>& args)
|
||||
{
|
||||
m_path.line_to(map(args[0].to_float(), args[1].to_float()));
|
||||
}
|
||||
|
||||
void Renderer::handle_path_close(const Vector<Value>&)
|
||||
{
|
||||
m_path.close();
|
||||
}
|
||||
|
||||
void Renderer::handle_path_append_rect(const Vector<Value>& args)
|
||||
{
|
||||
auto pos = map(args[0].to_float(), args[1].to_float());
|
||||
auto size = map(Gfx::FloatSize { args[2].to_float(), args[3].to_float() });
|
||||
|
||||
m_path.move_to(pos);
|
||||
m_path.line_to({ pos.x() + size.width(), pos.y() });
|
||||
m_path.line_to({ pos.x() + size.width(), pos.y() + size.height() });
|
||||
m_path.line_to({ pos.x(), pos.y() + size.height() });
|
||||
m_path.close();
|
||||
}
|
||||
|
||||
void Renderer::handle_path_stroke(const Vector<Value>&)
|
||||
{
|
||||
m_painter.stroke_path(m_path, state().stroke_color, state().line_width);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_close_and_stroke(const Vector<Value>& args)
|
||||
{
|
||||
m_path.close();
|
||||
handle_path_stroke(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_fill_nonzero(const Vector<Value>&)
|
||||
{
|
||||
m_painter.fill_path(m_path, state().paint_color, Gfx::Painter::WindingRule::Nonzero);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_fill_nonzero_deprecated(const Vector<Value>& args)
|
||||
{
|
||||
handle_path_fill_nonzero(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_fill_evenodd(const Vector<Value>&)
|
||||
{
|
||||
m_painter.fill_path(m_path, state().paint_color, Gfx::Painter::WindingRule::EvenOdd);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_fill_stroke_nonzero(const Vector<Value>& args)
|
||||
{
|
||||
m_painter.stroke_path(m_path, state().stroke_color, state().line_width);
|
||||
handle_path_fill_nonzero(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_fill_stroke_evenodd(const Vector<Value>& args)
|
||||
{
|
||||
m_painter.stroke_path(m_path, state().stroke_color, state().line_width);
|
||||
handle_path_fill_evenodd(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_close_fill_stroke_nonzero(const Vector<Value>& args)
|
||||
{
|
||||
m_path.close();
|
||||
handle_path_fill_stroke_nonzero(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_path_close_fill_stroke_evenodd(const Vector<Value>& args)
|
||||
{
|
||||
m_path.close();
|
||||
handle_path_fill_stroke_evenodd(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_char_space(const Vector<Value>& args)
|
||||
{
|
||||
text_state().character_spacing = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_word_space(const Vector<Value>& args)
|
||||
{
|
||||
text_state().word_spacing = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_horizontal_scale(const Vector<Value>& args)
|
||||
{
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
text_state().horizontal_scaling = args[0].to_float() / 100.0f;
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_leading(const Vector<Value>& args)
|
||||
{
|
||||
text_state().leading = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_font(const Vector<Value>& args)
|
||||
{
|
||||
auto target_font_name = m_document->resolve_to<NameObject>(args[0])->name();
|
||||
auto fonts_dictionary = m_page.resources->get_dict(m_document, "Font");
|
||||
auto font_dictionary = fonts_dictionary->get_dict(m_document, target_font_name);
|
||||
|
||||
// FIXME: We do not yet have the standard 14 fonts, as some of them are not open fonts,
|
||||
// so we just use LiberationSerif for everything
|
||||
|
||||
auto font_name = font_dictionary->get_name(m_document, "BaseFont")->name().to_lowercase();
|
||||
auto font_view = font_name.view();
|
||||
bool is_bold = font_view.contains("bold");
|
||||
bool is_italic = font_view.contains("italic");
|
||||
|
||||
String font_variant;
|
||||
|
||||
if (is_bold && is_italic) {
|
||||
font_variant = "BoldItalic";
|
||||
} else if (is_bold) {
|
||||
font_variant = "Bold";
|
||||
} else if (is_italic) {
|
||||
font_variant = "Italic";
|
||||
} else {
|
||||
font_variant = "Regular";
|
||||
}
|
||||
|
||||
auto specified_font_size = args[1].to_float();
|
||||
// FIXME: This scaling should occur when drawing the glyph rather than selecting the font.
|
||||
// This should be removed when the painter supports arbitrary bitmap scaling.
|
||||
specified_font_size *= state().ctm.x_scale();
|
||||
|
||||
text_state().font = Gfx::FontDatabase::the().get("Liberation Serif", font_variant, static_cast<int>(specified_font_size));
|
||||
VERIFY(text_state().font);
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_rendering_mode(const Vector<Value>& args)
|
||||
{
|
||||
text_state().rendering_mode = static_cast<TextRenderingMode>(args[0].as_int());
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_rise(const Vector<Value>& args)
|
||||
{
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
text_state().rise = args[0].to_float();
|
||||
}
|
||||
|
||||
void Renderer::handle_text_begin(const Vector<Value>&)
|
||||
{
|
||||
m_text_matrix = Gfx::AffineTransform();
|
||||
m_text_line_matrix = Gfx::AffineTransform();
|
||||
}
|
||||
|
||||
void Renderer::handle_text_end(const Vector<Value>&)
|
||||
{
|
||||
// FIXME: Do we need to do anything here?
|
||||
}
|
||||
|
||||
void Renderer::handle_text_next_line_offset(const Vector<Value>& args)
|
||||
{
|
||||
Gfx::AffineTransform transform(1.0f, 0.0f, 0.0f, 1.0f, args[0].to_float(), args[1].to_float());
|
||||
transform.multiply(m_text_line_matrix);
|
||||
m_text_matrix = transform;
|
||||
m_text_line_matrix = transform;
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
}
|
||||
|
||||
void Renderer::handle_text_next_line_and_set_leading(const Vector<Value>& args)
|
||||
{
|
||||
text_state().leading = -args[1].to_float();
|
||||
handle_text_next_line_offset(args);
|
||||
}
|
||||
|
||||
void Renderer::handle_text_set_matrix_and_line_matrix(const Vector<Value>& args)
|
||||
{
|
||||
Gfx::AffineTransform new_transform(
|
||||
args[0].to_float(),
|
||||
args[1].to_float(),
|
||||
args[2].to_float(),
|
||||
args[3].to_float(),
|
||||
args[4].to_float(),
|
||||
args[5].to_float());
|
||||
m_text_line_matrix = new_transform;
|
||||
m_text_matrix = new_transform;
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
}
|
||||
|
||||
void Renderer::handle_text_next_line(const Vector<Value>&)
|
||||
{
|
||||
handle_text_next_line_offset({ 0.0f, -text_state().leading });
|
||||
}
|
||||
|
||||
void Renderer::handle_text_show_string(const Vector<Value>& args)
|
||||
{
|
||||
auto text = m_document->resolve_to<StringObject>(args[0])->string();
|
||||
show_text(text);
|
||||
}
|
||||
|
||||
void Renderer::handle_text_next_line_show_string(const Vector<Value>& args)
|
||||
{
|
||||
handle_text_next_line(args);
|
||||
handle_text_show_string(args);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
Gfx::Point<T> Renderer::map(T x, T y) const
|
||||
{
|
||||
auto mapped = state().ctm.map(Gfx::Point<T> { x, y });
|
||||
return { mapped.x(), static_cast<T>(m_bitmap->height()) - mapped.y() };
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
Gfx::Size<T> Renderer::map(Gfx::Size<T> size) const
|
||||
{
|
||||
return state().ctm.map(size);
|
||||
}
|
||||
|
||||
void Renderer::show_text(const String& string, int shift)
|
||||
{
|
||||
auto utf = Utf8View(string);
|
||||
auto& font = text_state().font;
|
||||
|
||||
for (auto codepoint : utf) {
|
||||
// FIXME: Don't calculate this matrix for every character
|
||||
auto& text_rendering_matrix = calculate_text_rendering_matrix();
|
||||
|
||||
auto text_position = text_rendering_matrix.map(Gfx::FloatPoint { 0.0f, 0.0f });
|
||||
text_position.set_y(static_cast<float>(m_bitmap->height()) - text_position.y());
|
||||
|
||||
// FIXME: For some reason, the space character in LiberationSerif is drawn as an exclamation point
|
||||
if (codepoint != 0x20)
|
||||
m_painter.draw_glyph(text_position.to_type<int>(), codepoint, *text_state().font, state().paint_color);
|
||||
|
||||
auto glyph_width = static_cast<float>(font->glyph_width(codepoint));
|
||||
auto tx = (glyph_width - static_cast<float>(shift) / 1000.0f);
|
||||
tx += text_state().character_spacing;
|
||||
|
||||
if (codepoint == ' ')
|
||||
tx += text_state().word_spacing;
|
||||
|
||||
tx *= text_state().horizontal_scaling;
|
||||
|
||||
m_text_rendering_matrix_is_dirty = true;
|
||||
m_text_matrix = Gfx::AffineTransform(1, 0, 0, 1, tx, 0).multiply(m_text_matrix);
|
||||
}
|
||||
}
|
||||
|
||||
const Gfx::AffineTransform& Renderer::calculate_text_rendering_matrix()
|
||||
{
|
||||
if (m_text_rendering_matrix_is_dirty) {
|
||||
m_text_rendering_matrix = Gfx::AffineTransform(
|
||||
text_state().horizontal_scaling,
|
||||
0.0f,
|
||||
0.0f,
|
||||
1.0f,
|
||||
0.0f,
|
||||
text_state().rise);
|
||||
m_text_rendering_matrix.multiply(m_text_matrix);
|
||||
m_text_rendering_matrix.multiply(state().ctm);
|
||||
m_text_rendering_matrix_is_dirty = false;
|
||||
}
|
||||
return m_text_rendering_matrix;
|
||||
}
|
||||
|
||||
}
|
||||
254
Userland/Libraries/LibPDF/Renderer.h
Normal file
254
Userland/Libraries/LibPDF/Renderer.h
Normal file
|
|
@ -0,0 +1,254 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/Format.h>
|
||||
#include <LibGfx/AffineTransform.h>
|
||||
#include <LibGfx/Bitmap.h>
|
||||
#include <LibGfx/Font.h>
|
||||
#include <LibGfx/FontDatabase.h>
|
||||
#include <LibGfx/Painter.h>
|
||||
#include <LibGfx/Path.h>
|
||||
#include <LibGfx/Point.h>
|
||||
#include <LibGfx/Rect.h>
|
||||
#include <LibGfx/Size.h>
|
||||
#include <LibPDF/Document.h>
|
||||
#include <LibPDF/Object.h>
|
||||
|
||||
namespace PDF {
|
||||
|
||||
enum class LineCapStyle : u8 {
|
||||
ButtCap = 0,
|
||||
RoundCap = 1,
|
||||
SquareCap = 2,
|
||||
};
|
||||
|
||||
enum class LineJoinStyle : u8 {
|
||||
Miter = 0,
|
||||
Round = 1,
|
||||
Bevel = 2,
|
||||
};
|
||||
|
||||
struct LineDashPattern {
|
||||
Vector<int> pattern;
|
||||
int phase;
|
||||
};
|
||||
|
||||
enum class TextRenderingMode : u8 {
|
||||
Fill = 0,
|
||||
Stroke = 1,
|
||||
FillThenStroke = 2,
|
||||
Invisible = 3,
|
||||
FillAndClip = 4,
|
||||
StrokeAndClip = 5,
|
||||
FillStrokeAndClip = 6,
|
||||
Clip = 7,
|
||||
};
|
||||
|
||||
struct TextState {
|
||||
float character_spacing { 3.0f };
|
||||
float word_spacing { 5.0f };
|
||||
float horizontal_scaling { 1.0f };
|
||||
float leading { 0.0f };
|
||||
RefPtr<Gfx::Font> font;
|
||||
TextRenderingMode rendering_mode { TextRenderingMode::Fill };
|
||||
float rise { 0.0f };
|
||||
bool knockout { true };
|
||||
};
|
||||
|
||||
struct GraphicsState {
|
||||
Gfx::AffineTransform ctm;
|
||||
Gfx::Color stroke_color { Gfx::Color::NamedColor::Black };
|
||||
Gfx::Color paint_color { Gfx::Color::NamedColor::Black };
|
||||
float line_width { 1.0f };
|
||||
LineCapStyle line_cap_style { LineCapStyle::ButtCap };
|
||||
LineJoinStyle line_join_style { LineJoinStyle::Miter };
|
||||
float miter_limit { 10.0f };
|
||||
LineDashPattern line_dash_pattern { {}, 0 };
|
||||
TextState text_state {};
|
||||
};
|
||||
|
||||
class Renderer {
|
||||
public:
|
||||
static void render(Document&, const Page&, RefPtr<Gfx::Bitmap>);
|
||||
|
||||
private:
|
||||
Renderer(RefPtr<Document>, const Page&, RefPtr<Gfx::Bitmap>);
|
||||
|
||||
void render();
|
||||
|
||||
void handle_command(const Command&);
|
||||
#define V(name, snake_name, symbol) \
|
||||
void handle_##snake_name(const Vector<Value>& args);
|
||||
ENUMERATE_COMMANDS(V)
|
||||
#undef V
|
||||
void handle_text_next_line_show_string(const Vector<Value>& args);
|
||||
|
||||
// shift is the manual advance given in the TJ command array
|
||||
void show_text(const String&, int shift = 0);
|
||||
|
||||
ALWAYS_INLINE const GraphicsState& state() const { return m_graphics_state_stack.last(); }
|
||||
ALWAYS_INLINE GraphicsState& state() { return m_graphics_state_stack.last(); }
|
||||
ALWAYS_INLINE const TextState& text_state() const { return state().text_state; }
|
||||
ALWAYS_INLINE TextState& text_state() { return state().text_state; }
|
||||
|
||||
template<typename T>
|
||||
ALWAYS_INLINE Gfx::Point<T> map(T x, T y) const;
|
||||
|
||||
template<typename T>
|
||||
ALWAYS_INLINE Gfx::Size<T> map(Gfx::Size<T>) const;
|
||||
|
||||
const Gfx::AffineTransform& calculate_text_rendering_matrix();
|
||||
|
||||
RefPtr<Document> m_document;
|
||||
RefPtr<Gfx::Bitmap> m_bitmap;
|
||||
const Page& m_page;
|
||||
Gfx::Painter m_painter;
|
||||
|
||||
Gfx::Path m_path;
|
||||
Vector<GraphicsState> m_graphics_state_stack;
|
||||
Gfx::AffineTransform m_text_matrix;
|
||||
Gfx::AffineTransform m_text_line_matrix;
|
||||
Gfx::AffineTransform m_userspace_matrix;
|
||||
|
||||
bool m_text_rendering_matrix_is_dirty { true };
|
||||
Gfx::AffineTransform m_text_rendering_matrix;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
namespace AK {
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::LineCapStyle> : Formatter<StringView> {
|
||||
void format(FormatBuilder& builder, const PDF::LineCapStyle& style)
|
||||
{
|
||||
switch (style) {
|
||||
case PDF::LineCapStyle::ButtCap:
|
||||
Formatter<StringView>::format(builder, "LineCapStyle::ButtCap");
|
||||
break;
|
||||
case PDF::LineCapStyle::RoundCap:
|
||||
Formatter<StringView>::format(builder, "LineCapStyle::RoundCap");
|
||||
break;
|
||||
case PDF::LineCapStyle::SquareCap:
|
||||
Formatter<StringView>::format(builder, "LineCapStyle::SquareCap");
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::LineJoinStyle> : Formatter<StringView> {
|
||||
void format(FormatBuilder& builder, const PDF::LineJoinStyle& style)
|
||||
{
|
||||
switch (style) {
|
||||
case PDF::LineJoinStyle::Miter:
|
||||
Formatter<StringView>::format(builder, "LineJoinStyle::Miter");
|
||||
break;
|
||||
case PDF::LineJoinStyle::Round:
|
||||
Formatter<StringView>::format(builder, "LineJoinStyle::Round");
|
||||
break;
|
||||
case PDF::LineJoinStyle::Bevel:
|
||||
Formatter<StringView>::format(builder, "LineJoinStyle::Bevel");
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::LineDashPattern> : Formatter<StringView> {
|
||||
void format(FormatBuilder& format_builder, const PDF::LineDashPattern& pattern)
|
||||
{
|
||||
StringBuilder builder;
|
||||
builder.append("[");
|
||||
bool first = true;
|
||||
|
||||
for (auto& i : pattern.pattern) {
|
||||
if (!first)
|
||||
builder.append(", ");
|
||||
first = false;
|
||||
builder.appendff("{}", i);
|
||||
}
|
||||
|
||||
builder.appendff("] {}", pattern.phase);
|
||||
return Formatter<StringView>::format(format_builder, builder.to_string());
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::TextRenderingMode> : Formatter<StringView> {
|
||||
void format(FormatBuilder& builder, const PDF::TextRenderingMode& style)
|
||||
{
|
||||
switch (style) {
|
||||
case PDF::TextRenderingMode::Fill:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::Fill");
|
||||
break;
|
||||
case PDF::TextRenderingMode::Stroke:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::Stroke");
|
||||
break;
|
||||
case PDF::TextRenderingMode::FillThenStroke:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::FillThenStroke");
|
||||
break;
|
||||
case PDF::TextRenderingMode::Invisible:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::Invisible");
|
||||
break;
|
||||
case PDF::TextRenderingMode::FillAndClip:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::FillAndClip");
|
||||
break;
|
||||
case PDF::TextRenderingMode::StrokeAndClip:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::StrokeAndClip");
|
||||
break;
|
||||
case PDF::TextRenderingMode::FillStrokeAndClip:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::FillStrokeAndClip");
|
||||
break;
|
||||
case PDF::TextRenderingMode::Clip:
|
||||
Formatter<StringView>::format(builder, "TextRenderingMode::Clip");
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::TextState> : Formatter<StringView> {
|
||||
void format(FormatBuilder& format_builder, const PDF::TextState& state)
|
||||
{
|
||||
StringBuilder builder;
|
||||
builder.append("TextState {\n");
|
||||
builder.appendff(" character_spacing={}\n", state.character_spacing);
|
||||
builder.appendff(" word_spacing={}\n", state.word_spacing);
|
||||
builder.appendff(" horizontal_scaling={}\n", state.horizontal_scaling);
|
||||
builder.appendff(" leading={}\n", state.leading);
|
||||
builder.appendff(" font={}\n", state.font ? state.font->name() : "<null>");
|
||||
builder.appendff(" rendering_mode={}\n", state.rendering_mode);
|
||||
builder.appendff(" rise={}\n", state.rise);
|
||||
builder.appendff(" knockout={}\n", state.knockout);
|
||||
builder.append(" }");
|
||||
Formatter<StringView>::format(format_builder, builder.to_string());
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Formatter<PDF::GraphicsState> : Formatter<StringView> {
|
||||
void format(FormatBuilder& format_builder, const PDF::GraphicsState& state)
|
||||
{
|
||||
StringBuilder builder;
|
||||
builder.append("GraphicsState {\n");
|
||||
builder.appendff(" ctm={}\n", state.ctm);
|
||||
builder.appendff(" stroke_color={}\n", state.stroke_color);
|
||||
builder.appendff(" paint_color={}\n", state.paint_color);
|
||||
builder.appendff(" line_width={}\n", state.line_width);
|
||||
builder.appendff(" line_cap_style={}\n", state.line_cap_style);
|
||||
builder.appendff(" line_join_style={}\n", state.line_join_style);
|
||||
builder.appendff(" miter_limit={}\n", state.miter_limit);
|
||||
builder.appendff(" line_dash_pattern={}\n", state.line_dash_pattern);
|
||||
builder.appendff(" text_state={}\n", state.text_state);
|
||||
builder.append("}");
|
||||
Formatter<StringView>::format(format_builder, builder.to_string());
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue