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Add more properties to LdSymbol.

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Also move the actual storage of symbol properties to implementations
of the abstract LdSymbol class. All the properties are read only.
This commit is contained in:
Přemysl Eric Janouch 2010-10-27 15:52:36 +02:00
parent aa33db342b
commit 9156953cc9
5 changed files with 142 additions and 74 deletions
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6
src/ld-lua-symbol-private.h
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@ -19,10 +19,16 @@ G_BEGIN_DECLS
/*
* LdLuaSymbolPrivate:
* @lua: Parent #LdLua object.
* @name: Name of this symbol.
* @human_name: Localized human name of this symbol.
* @area: Area of this symbol.
*/
struct _LdLuaSymbolPrivate
{
LdLua *lua;
gchar *name;
gchar *human_name;
LdSymbolArea area;
};

39
src/ld-lua-symbol.c
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@ -34,6 +34,9 @@ G_DEFINE_TYPE (LdLuaSymbol, ld_lua_symbol, LD_TYPE_SYMBOL);
static void ld_lua_symbol_finalize (GObject *gobject);
static const gchar *ld_lua_symbol_get_name (LdSymbol *symbol);
static const gchar *ld_lua_symbol_get_human_name (LdSymbol *symbol);
static void ld_lua_symbol_get_area (LdSymbol *symbol, LdSymbolArea *area);
static void ld_lua_symbol_draw (LdSymbol *symbol, cairo_t *cr);
@ -45,6 +48,9 @@ ld_lua_symbol_class_init (LdLuaSymbolClass *klass)
object_class = G_OBJECT_CLASS (klass);
object_class->finalize = ld_lua_symbol_finalize;
klass->parent_class.get_name = ld_lua_symbol_get_name;
klass->parent_class.get_human_name = ld_lua_symbol_get_human_name;
klass->parent_class.get_area = ld_lua_symbol_get_area;
klass->parent_class.draw = ld_lua_symbol_draw;
g_type_class_add_private (klass, sizeof (LdLuaSymbolPrivate));
@ -67,18 +73,49 @@ ld_lua_symbol_finalize (GObject *gobject)
ld_lua_private_unregister (self->priv->lua, self);
g_object_unref (self->priv->lua);
if (self->priv->name)
g_free (self->priv->name);
if (self->priv->human_name)
g_free (self->priv->human_name);
/* Chain up to the parent class. */
G_OBJECT_CLASS (ld_lua_symbol_parent_class)->finalize (gobject);
}
const gchar *
ld_lua_symbol_get_name (LdSymbol *symbol)
{
g_return_val_if_fail (LD_IS_LUA_SYMBOL (symbol), NULL);
return LD_LUA_SYMBOL (symbol)->priv->name;
}
const gchar *
ld_lua_symbol_get_human_name (LdSymbol *symbol)
{
g_return_val_if_fail (LD_IS_LUA_SYMBOL (symbol), NULL);
return LD_LUA_SYMBOL (symbol)->priv->human_name;
}
void
ld_lua_symbol_get_area (LdSymbol *symbol, LdSymbolArea *area)
{
LdLuaSymbol *self;
g_return_if_fail (LD_IS_LUA_SYMBOL (symbol));
g_return_if_fail (area != NULL);
self = LD_LUA_SYMBOL (symbol);
*area = self->priv->area;
}
static void
ld_lua_symbol_draw (LdSymbol *symbol, cairo_t *cr)
{
LdLuaSymbol *self;
g_return_if_fail (LD_IS_LUA_SYMBOL (symbol));
g_return_if_fail (cr != NULL);
g_return_if_fail (LD_IS_SYMBOL (symbol));
self = LD_LUA_SYMBOL (symbol);
ld_lua_private_draw (self->priv->lua, self, cr);

16
src/ld-lua.c
View File

@ -363,14 +363,6 @@ ld_lua_logdiag_register (lua_State *L)
lua_pop (L, 1);
g_return_val_if_fail (ud != NULL, 0);
/* TODO: Create a symbol using the given parameters:
* 1. name
* 2. names (table) -> use g_get_language_names ()
* 3. area (table)
* 4. terminals (table)
* 5. render function
*/
/* Check and retrieve arguments. */
name = lua_tostring (L, 1);
if (!name)
@ -378,12 +370,16 @@ ld_lua_logdiag_register (lua_State *L)
if (!lua_isfunction (L, 5))
luaL_error (L, "register: bad or missing argument #%d", 5);
/* Create a symbol object. */
/* TODO: Create a symbol using the given parameters:
* 2. names (table) -> use g_get_language_names ()
* 3. area (table)
* 4. terminals (table)
*/
symbol = g_object_new (LD_TYPE_LUA_SYMBOL, NULL);
symbol->priv->lua = ud->self;
g_object_ref (ud->self);
ld_symbol_set_name (LD_SYMBOL (symbol), name);
symbol->priv->name = g_strdup (name);
/* Create an entry in the symbol table. */
lua_getfield (L, LUA_REGISTRYINDEX, LD_LUA_SYMBOLS_INDEX);

123
src/ld-symbol.c
View File

@ -26,21 +26,14 @@
* drawn onto the #LdCanvas.
*/
/*
* LdSymbolPrivate:
* @name: The name of this symbol.
*/
struct _LdSymbolPrivate
{
gchar *name;
};
G_DEFINE_ABSTRACT_TYPE (LdSymbol, ld_symbol, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_NAME
PROP_NAME,
PROP_HUMAN_NAME,
/* TODO: Property for the area. */
};
static void
@ -63,7 +56,6 @@ ld_symbol_class_init (LdSymbolClass *klass)
object_class = G_OBJECT_CLASS (klass);
object_class->get_property = ld_symbol_get_property;
object_class->set_property = ld_symbol_set_property;
object_class->finalize = ld_symbol_finalize;
/**
* LdSymbol:name:
@ -72,17 +64,23 @@ ld_symbol_class_init (LdSymbolClass *klass)
*/
pspec = g_param_spec_string ("name", "Name",
"The name of this symbol.",
"", G_PARAM_READWRITE);
"", G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_NAME, pspec);
g_type_class_add_private (klass, sizeof (LdSymbolPrivate));
/**
* LdSymbol:human-name:
*
* The localized human name of this symbol.
*/
pspec = g_param_spec_string ("human-name", "Human name",
"The localized human name of this symbol.",
"", G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_HUMAN_NAME, pspec);
}
static void
ld_symbol_init (LdSymbol *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE
(self, LD_TYPE_SYMBOL, LdSymbolPrivate);
}
static void
@ -97,6 +95,9 @@ ld_symbol_get_property (GObject *object, guint property_id,
case PROP_NAME:
g_value_set_string (value, ld_symbol_get_name (self));
break;
case PROP_HUMAN_NAME:
g_value_set_string (value, ld_symbol_get_human_name (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
@ -106,50 +107,9 @@ static void
ld_symbol_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec)
{
LdSymbol *self;
self = LD_SYMBOL (object);
switch (property_id)
{
case PROP_NAME:
ld_symbol_set_name (self, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
ld_symbol_finalize (GObject *gobject)
{
LdSymbol *self;
self = LD_SYMBOL (gobject);
if (self->priv->name)
g_free (self->priv->name);
/* Chain up to the parent class. */
G_OBJECT_CLASS (ld_symbol_parent_class)->finalize (gobject);
}
/**
* ld_symbol_set_name:
* @self: An #LdSymbol object.
* @name: A new name for the symbol.
*
* Set the name of a symbol.
*/
void
ld_symbol_set_name (LdSymbol *self, const gchar *name)
{
g_return_if_fail (LD_IS_SYMBOL (self));
g_return_if_fail (name != NULL);
if (self->priv->name)
g_free (self->priv->name);
self->priv->name = g_strdup (name);
}
/**
* ld_symbol_get_name:
@ -160,8 +120,51 @@ ld_symbol_set_name (LdSymbol *self, const gchar *name)
const gchar *
ld_symbol_get_name (LdSymbol *self)
{
LdSymbolClass *klass;
g_return_if_fail (LD_IS_SYMBOL (self));
return self->priv->name;
klass = LD_SYMBOL_GET_CLASS (self);
g_return_val_if_fail (klass->get_name != NULL, NULL);
return klass->get_name (self);
}
/**
* ld_symbol_get_human_name:
* @self: An #LdSymbol object.
*
* Return value: The localised human name of the symbol.
*/
const gchar *
ld_symbol_get_human_name (LdSymbol *self)
{
LdSymbolClass *klass;
g_return_if_fail (LD_IS_SYMBOL (self));
klass = LD_SYMBOL_GET_CLASS (self);
g_return_val_if_fail (klass->get_human_name != NULL, NULL);
return klass->get_human_name (self);
}
/**
* ld_symbol_get_area:
* @self: A symbol object.
* @area: Where the area of the symbol will be returned.
*
* Get the area of the symbol.
*/
void
ld_symbol_get_area (LdSymbol *self, LdSymbolArea *area)
{
LdSymbolClass *klass;
g_return_if_fail (LD_IS_SYMBOL (self));
g_return_if_fail (area != NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_if_fail (klass->get_area != NULL);
klass->get_area (self, area);
}
/**
@ -180,6 +183,6 @@ ld_symbol_draw (LdSymbol *self, cairo_t *cr)
g_return_if_fail (cr != NULL);
klass = LD_SYMBOL_GET_CLASS (self);
if (klass->draw)
klass->draw (self, cr);
g_return_if_fail (klass->draw != NULL);
klass->draw (self, cr);
}

32
src/ld-symbol.h
View File

@ -30,6 +30,8 @@ typedef struct _LdSymbol LdSymbol;
typedef struct _LdSymbolPrivate LdSymbolPrivate;
typedef struct _LdSymbolClass LdSymbolClass;
typedef struct _LdSymbolArea LdSymbolArea;
/**
* LdSymbol:
@ -42,27 +44,51 @@ struct _LdSymbol
LdSymbolPrivate *priv;
};
/**
* LdSymbolArea:
* @x1: Left-top X coordinate.
* @y1: Left-top Y coordinate.
* @x2: Right-bottom X coordinate.
* @y2: Right-bottom Y coordinate.
*
* Defines the area of the symbol relative to the center of the symbol,
* which is at the (0, 0) coordinates.
*/
struct _LdSymbolArea
{
gdouble x1, y1;
gdouble x2, y2;
};
/**
* LdSymbolClass:
* @parent_class: The parent class.
* @get_name: Get the name of the symbol.
* @get_human_name: Get the localized human name of the symbol.
* @get_area: Get the area of the symbol.
* @draw: Draw the symbol on a Cairo surface.
*/
struct _LdSymbolClass
{
GObjectClass parent_class;
const gchar *(*get_name) (LdSymbol *self);
const gchar *(*get_human_name) (LdSymbol *self);
void (*get_area) (LdSymbol *self, LdSymbolArea *area);
void (*draw) (LdSymbol *self, cairo_t *cr);
};
GType ld_symbol_get_type (void) G_GNUC_CONST;
void ld_symbol_set_name (LdSymbol *self, const gchar *name);
const gchar *ld_symbol_get_name (LdSymbol *self);
const gchar *ld_symbol_get_human_name (LdSymbol *self);
void ld_symbol_get_area (LdSymbol *self, LdSymbolArea *area);
void ld_symbol_draw (LdSymbol *self, cairo_t *cr);
/* TODO: Interface for symbol terminals. */
/* TODO: Interface for terminals.
* Something like a list of gdouble pairs (-> a new structure).
*/
G_END_DECLS