103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/*
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* ld-symbol.h
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*
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* This file is a part of logdiag.
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* Copyright Přemysl Janouch 2010. All rights reserved.
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*
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* See the file LICENSE for licensing information.
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*
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*/
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#ifndef __LD_SYMBOL_H__
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#define __LD_SYMBOL_H__
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G_BEGIN_DECLS
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#define LD_TYPE_SYMBOL_AREA (ld_symbol_area_get_type ())
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typedef struct _LdSymbolArea LdSymbolArea;
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/**
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* LdSymbolArea:
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* @x: Left-top X coordinate.
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* @y: Left-top Y coordinate.
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* @width: Width of the area, must be positive.
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* @height: Height of the area, must be positive.
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*
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* Defines the area of the symbol relative to the center of the symbol,
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* which is at the (0, 0) coordinates.
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*/
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struct _LdSymbolArea
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{
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gdouble x, y;
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gdouble width, height;
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};
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GType ld_symbol_area_get_type (void) G_GNUC_CONST;
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LdSymbolArea *ld_symbol_area_copy (const LdSymbolArea *self);
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void ld_symbol_area_free (LdSymbolArea *self);
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#define LD_TYPE_SYMBOL (ld_symbol_get_type ())
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#define LD_SYMBOL(obj) (G_TYPE_CHECK_INSTANCE_CAST \
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((obj), LD_TYPE_SYMBOL, LdSymbol))
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#define LD_SYMBOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST \
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((klass), LD_TYPE_SYMBOL, LdSymbolClass))
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#define LD_IS_SYMBOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE \
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((obj), LD_TYPE_SYMBOL))
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#define LD_IS_SYMBOL_CLASS(klass) (G_TYPE_CHECK_INSTANCE_TYPE \
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((klass), LD_TYPE_SYMBOL))
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#define LD_SYMBOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS \
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((obj), LD_SYMBOL, LdSymbolClass))
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typedef struct _LdSymbol LdSymbol;
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typedef struct _LdSymbolPrivate LdSymbolPrivate;
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typedef struct _LdSymbolClass LdSymbolClass;
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struct _LdSymbol
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{
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/*< private >*/
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GObject parent_instance;
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LdSymbolPrivate *priv;
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};
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/**
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* LdSymbolClass:
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* @parent_class: The parent class.
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* @get_name: Get the name of the symbol.
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* @get_human_name: Get the localized human name of the symbol.
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* @get_area: Get the area of the symbol.
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* @draw: Draw the symbol on a Cairo surface.
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*/
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struct _LdSymbolClass
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{
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GObjectClass parent_class;
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const gchar *(*get_name) (LdSymbol *self);
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const gchar *(*get_human_name) (LdSymbol *self);
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void (*get_area) (LdSymbol *self, LdSymbolArea *area);
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void (*draw) (LdSymbol *self, cairo_t *cr);
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};
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GType ld_symbol_get_type (void) G_GNUC_CONST;
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const gchar *ld_symbol_get_name (LdSymbol *self);
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const gchar *ld_symbol_get_human_name (LdSymbol *self);
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void ld_symbol_get_area (LdSymbol *self, LdSymbolArea *area);
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void ld_symbol_draw (LdSymbol *self, cairo_t *cr);
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/* TODO: Interface for terminals.
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* Something like a list of gdouble pairs (-> a new structure).
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*/
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G_END_DECLS
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#endif /* ! __LD_SYMBOL_H__ */
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