mirror of https://github.com/odrling/Aegisub
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
// Copyright (c) 2012, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file font_file_lister.h
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/// @see font_file_lister.cpp
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/// @ingroup font_collector
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///
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#pragma once
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#include <libaegisub/fs_fwd.h>
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#include <boost/filesystem/path.hpp>
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#include <functional>
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#include <map>
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#include <set>
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#include <string>
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#include <vector>
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#include <wx/string.h>
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class AssDialogue;
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class AssFile;
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typedef std::function<void (wxString, int)> FontCollectorStatusCallback;
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/// @class FontFileLister
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/// @brief Font lister interface
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class FontFileLister {
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public:
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struct CollectionResult {
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/// Characters which could not be found in any font files
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wxString missing;
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/// Paths to the file(s) containing the requested font
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std::vector<agi::fs::path> paths;
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};
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/// @brief Get the path to the font with the given styles
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/// @param facename Name of font face
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/// @param bold ASS font weight
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/// @param italic Italic?
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/// @param characters Characters in this style
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/// @return Path to the matching font file(s), or empty if not found
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virtual CollectionResult GetFontPaths(std::string const& facename, int bold, bool italic, std::set<wxUniChar> const& characters) = 0;
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};
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/// @class FontCollector
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/// @brief Class which collects the paths to all fonts used in a script
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class FontCollector {
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/// All data needed to find the font file used to render text
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struct StyleInfo {
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std::string facename;
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int bold;
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bool italic;
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bool operator<(StyleInfo const& rgt) const;
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};
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/// Data about where each style is used
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struct UsageData {
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std::set<wxUniChar> chars; ///< Characters used in this style which glyphs will be needed for
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std::set<int> lines; ///< Lines on which this style is used via overrides
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std::set<std::string> styles; ///< ASS styles which use this style
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};
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/// Message callback provider by caller
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FontCollectorStatusCallback status_callback;
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/// The actual lister to use to get font paths
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FontFileLister &lister;
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/// The set of all glyphs used in the file
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std::map<StyleInfo, UsageData> used_styles;
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/// Style name -> ASS style definition
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std::map<std::string, StyleInfo> styles;
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/// Paths to found required font files
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std::set<agi::fs::path> results;
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/// Number of fonts which could not be found
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int missing = 0;
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/// Number of fonts which were found, but did not contain all used glyphs
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int missing_glyphs = 0;
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/// Gather all of the unique styles with text on a line
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void ProcessDialogueLine(const AssDialogue *line, int index);
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/// Get the font for a single style
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void ProcessChunk(std::pair<StyleInfo, UsageData> const& style);
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/// Print the lines and styles on which a missing font is used
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void PrintUsage(UsageData const& data);
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public:
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/// Constructor
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/// @param status_callback Function to pass status updates to
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/// @param lister The actual font file lister
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FontCollector(FontCollectorStatusCallback status_callback, FontFileLister &lister);
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/// @brief Get a list of the locations of all font files used in the file
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/// @param file Lines in the subtitle file to check
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/// @param status Callback function for messages
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/// @return List of paths to fonts
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std::vector<agi::fs::path> GetFontPaths(const AssFile *file);
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};
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