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/*
* Copyright (C) 2024 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2024 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 6 мая 2020 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_STYLE_SCHEMA_H_
#define LSP_PLUG_IN_TK_STYLE_SCHEMA_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/lltl/pphash.h>
#include <lsp-plug.in/runtime/LSPString.h>
#include <lsp-plug.in/runtime/Color.h>
#include <lsp-plug.in/io/Path.h>
#include <lsp-plug.in/io/IInStream.h>
#include <lsp-plug.in/io/IInSequence.h>
#include <lsp-plug.in/fmt/xml/PullParser.h>
#include <lsp-plug.in/resource/ILoader.h>
namespace lsp
{
namespace tk
{
class Atoms;
class Display;
// Style definition
namespace style
{
LSP_TK_STYLE_DEF_BEGIN(Root, Style)
prop::Float sScaling;
prop::Float sFontScaling;
prop::Font sFont;
prop::DrawMode sDrawMode;
prop::Boolean sInvertMouseHScroll;
prop::Boolean sInvertMouseVScroll;
LSP_TK_STYLE_DEF_END
}
/**
* This class describes the system schema.
* The schema provides complete style hierarchy and may be
* reconfigured by applying another style sheet.
*/
class Schema
{
protected:
enum flags_t
{
S_CONFIGURING = 1 << 0, // Schema is in configuration state
S_INITIALIZED = 1 << 1, // Schema is initialized
};
typedef struct raw_property_t
{
const LSPString *name;
const LSPString *value;
ssize_t order;
} raw_property_t;
typedef struct property_value_t
{
property_type_t type;
union
{
bool bvalue;
int ivalue;
float fvalue;
};
LSPString svalue;
} property_value_t;
protected:
mutable Atoms *pAtoms;
mutable Display *pDisplay;
size_t nFlags;
Style *pRoot;
lltl::pphash<LSPString, Style> vBuiltin;
lltl::pphash<LSPString, Style> vStyles;
lltl::pphash<LSPString, lsp::Color> vColors;
prop::Float sScaling;
prop::Float sFontScaling;
prop::Font sFont;
prop::DrawMode sDrawMode;
prop::Boolean sInvertMouseHScroll;
prop::Boolean sInvertMouseVScroll;
protected:
static ssize_t compare_properties_by_order(const raw_property_t *a, const raw_property_t *b);
static bool make_raw_properties(StyleSheet::style_t *xs, lltl::darray<raw_property_t> *props);
protected:
status_t create_builtin_style(IStyleFactory *init);
status_t create_style(const LSPString *name);
status_t create_missing_styles(const StyleSheet *sheet);
status_t unlink_styles();
status_t link_styles(const StyleSheet *sheet);
status_t configure_styles(const StyleSheet *sheet);
static bool check_parents_configured(Style *s);
status_t apply_settings(Style *s, StyleSheet::style_t *xs);
status_t apply_relations(Style *s, const lltl::parray<LSPString> *parents);
status_t apply_relations(Style *s, const char *parents);
void destroy_colors();
status_t init_colors_from_sheet(const StyleSheet *sheet);
status_t load_fonts_from_sheet(const StyleSheet *sheet, resource::ILoader *loader);
static status_t parse_property_value(property_value_t *v, const LSPString *text, property_type_t pt);
void bind(Style *root);
status_t apply_internal(const StyleSheet *sheet, resource::ILoader *loader);
public:
explicit Schema(Atoms *atoms, Display *dpy);
Schema(const Schema &) = delete;
Schema(Schema &&) = delete;
virtual ~Schema();
Schema & operator = (const Schema &) = delete;
Schema & operator = (Schema &&) = delete;
/**
* Initialize schema with the specified list of styles
* Can be run only once after the schema is instantiated. Otherwise
* it will return error
*
* @param list list of styles
* @return status of operation
*/
status_t init(lltl::parray<IStyleFactory> *list);
status_t init(lltl::parray<IStyleFactory> &list);
/**
* Initialize schema with the specified list of styles
* Can be run only once after the schema is instantiated. Otherwise
* it will return error
*
* @param list array of pointers to style initializers
* @param n number of elements in array
* @return status of operation
*/
status_t init(IStyleFactory **list, size_t n);
/**
* Register additional styles
* @param list list of styles to register
* @return status of operation
*/
status_t add(lltl::parray<IStyleFactory> *list);
status_t add(lltl::parray<IStyleFactory> &list);
/**
* Register additional styles
* @param list array of pointers to style initializers
* @param n number of elements in array
* @return status of operation
*/
status_t add(IStyleFactory **list, size_t n);
/**
* Register additional style
* @param factory style factory
* @return status of operation
*/
status_t add(IStyleFactory *factory);
/**
* Apply stylesheet settings to the schema
* @param sheet style sheet
* @param loader resource loader
* @return status of operation
*/
status_t apply(const StyleSheet *sheet, resource::ILoader *loader = NULL);
public:
LSP_TK_PROPERTY(Float, scaling, &sScaling)
LSP_TK_PROPERTY(Float, font_scaling, &sFontScaling)
LSP_TK_PROPERTY(Font, font, &sFont)
LSP_TK_PROPERTY(DrawMode, draw_mode, &sDrawMode)
LSP_TK_PROPERTY(Boolean, invert_mouse_hscroll, &sInvertMouseHScroll)
LSP_TK_PROPERTY(Boolean, invert_mouse_vscroll, &sInvertMouseVScroll)
public:
/**
* Get color by identifier
* @param id color identifier
* @return color or NULL if not present
*/
lsp::Color *color(const char *id);
/**
* Get color by identifier
* @param id color identifier
* @return color or NULL if not present
*/
lsp::Color *color(const LSPString *id);
/**
* Get root style
* @return root style or NULL on error
*/
inline Style *root() { return pRoot; }
/**
* Get style by class identifier.
* If style does not exists, it will be automatically created and bound to the root style
* @return style or NULL on error
*/
Style *get(const char *id);
/**
* Get style by class identifier.
* If style does not exists, it will be automatically created and bound to the root style
* @return style or NULL on error
*/
Style *get(const LSPString *id);
/**
* Get atom identifier by name
* @param name atom name
* @return atom identifier or negative error code
*/
atom_t atom_id(const char *name) const;
/**
* Get atom identifier by name
* @param name atom name
* @return atom identifier or negative error code
*/
atom_t atom_id(const LSPString *name) const;
/**
* Get atom name by identifier
* @param name atom name or NULL
* @return atom identifier
*/
const char *atom_name(atom_t id) const;
/**
* Get currently used language
* @param dst pointer to store the result
* @return status of operation
*/
status_t get_language(LSPString *dst) const;
/**
* Set currently used language
* @param lang language identifier
* @return status of operation
*/
status_t set_lanugage(const LSPString *lang);
status_t set_lanugage(const char *lang);
/**
* Check that schema is in configuration mode:
* - no implicit overrides of style properties are allowed
* - automatic property synchronization on change is enabled
* @return
*/
inline bool config_mode() const { return nFlags & S_CONFIGURING; }
/**
* Load font and add to the repository
* @param name font name in UTF-8
* @param path path to the file that contains the font data (UTF-8)
* @return status of operation
*/
status_t add_font(const char *name, const char *path);
/**
* Load font and add to the repository
* @param name font name in UTF-8
* @param path path to the file that contains the font data (UTF-8)
* @return status of operation
*/
status_t add_font(const char *name, const io::Path *path);
/**
* Load font and add to the repository
* @param name font name in UTF-8
* @param path path to the file that contains the font data (UTF-8)
* @return status of operation
*/
status_t add_font(const char *name, const LSPString *path);
/**
* Load font from stream and add to the repository
* @param name font name in UTF-8
* @param path path to the file that contains the font data (UTF-8)
* @return status of operation
*/
status_t add_font(const char *name, io::IInStream *is);
/**
* Add an alias to the font name
* @param name font name
* @param alias alias for the font name
* @return status of operation
*/
status_t add_font_alias(const char *name, const char *alias);
/**
* Remove font or font alias by identifier
* @param name name font name or font alias
* @return status of operation
*/
status_t remove_font(const char *name);
/**
* Remove all previously loaded custom fonts and aliases
*/
void remove_all_fonts();
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_STYLE_SCHEMA_H_ */
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