MemphisRuleSet

MemphisRuleSet — Defines drawing rules for the renderer.

Synopsis

                    MemphisRuleSet;
MemphisRuleSet*     memphis_rule_set_new                ();
void                memphis_rule_set_free               (MemphisRuleSet *rules);
void                memphis_rule_set_load_from_file     (MemphisRuleSet *rules,
                                                         const gchar *filename,
                                                         GError **error);
void                memphis_rule_set_load_from_data     (MemphisRuleSet *rules,
                                                         const gchar *data,
                                                         guint size,
                                                         GError **error);
void                memphis_rule_set_set_bg_color       (MemphisRuleSet *rules,
                                                         guint8 r,
                                                         guint8 g,
                                                         guint8 b,
                                                         guint8 a);
void                memphis_rule_set_get_bg_color       (MemphisRuleSet *rules,
                                                         guint8 *r,
                                                         guint8 *g,
                                                         guint8 *b,
                                                         guint8 *a);
GList*              memphis_rule_set_get_rule_ids       (MemphisRuleSet *rules);
void                memphis_rule_set_set_rule           (MemphisRuleSet *rules,
                                                         MemphisRule *rule);
MemphisRule*        memphis_rule_set_get_rule           (MemphisRuleSet *rules,
                                                         const gchar *id);
gboolean            memphis_rule_set_remove_rule        (MemphisRuleSet *rules,
                                                         const gchar *id);

Object Hierarchy

  GObject
   +----MemphisRuleSet

Description

This Object defines drawing rules for a MemphisRenderer. The rules can be loaded from an XML file or can they be defined during execution time.

Details

MemphisRuleSet

typedef struct _MemphisRuleSet MemphisRuleSet;

memphis_rule_set_new ()

MemphisRuleSet*     memphis_rule_set_new                ();

Returns :

 a new MemphisRuleSet whithout any rules.

Since 0.1

memphis_rule_set_free ()

void                memphis_rule_set_free               (MemphisRuleSet *rules);

Frees the memory of a MemphisRuleSet.

rules :

 a MemphisRuleSet

Since 0.1

memphis_rule_set_load_from_file ()

void                memphis_rule_set_load_from_file     (MemphisRuleSet *rules,
                                                         const gchar *filename,
                                                         GError **error);

Load rules from an XML file.

rules :

 a MemphisRuleSet

filename :

 a path to a rules file

error :

 a pointer to a GError or NULL

Since 0.2

memphis_rule_set_load_from_data ()

void                memphis_rule_set_load_from_data     (MemphisRuleSet *rules,
                                                         const gchar *data,
                                                         guint size,
                                                         GError **error);

Load rules data from an XML file.

rules :

 a MemphisRuleSet

data :

 a character array with rules XML data

size :

 the size of the array

error :

 a pointer to a GError or NULL

Since 0.2

memphis_rule_set_set_bg_color ()

void                memphis_rule_set_set_bg_color       (MemphisRuleSet *rules,
                                                         guint8 r,
                                                         guint8 g,
                                                         guint8 b,
                                                         guint8 a);

Sets the background color and transparency rule.

rules :

 a MemphisRuleSet

r :

 red color component

g :

 green color component

b :

 blue color component

a :

 transparency

Since 0.1

memphis_rule_set_get_bg_color ()

void                memphis_rule_set_get_bg_color       (MemphisRuleSet *rules,
                                                         guint8 *r,
                                                         guint8 *g,
                                                         guint8 *b,
                                                         guint8 *a);

Assigns the background color and the transparency of the background to r, g, b and a.

rules :

 a MemphisRuleSet

r :

 red color component. out.

g :

 green color component. out.

b :

 blue color component. out.

a :

 transparency. out.

Since 0.1

memphis_rule_set_get_rule_ids ()

GList*              memphis_rule_set_get_rule_ids       (MemphisRuleSet *rules);

rules :

 a MemphisRuleSet

Returns :

 a list of rule id strings. Free the list with g_list_free when done. These strings have the following form: key1|key2|...|keyN:value1|value2|...|valueM Example: "waterway:river|stream|canal" . transfer full.

Since 0.1

memphis_rule_set_set_rule ()

void                memphis_rule_set_set_rule           (MemphisRuleSet *rules,
                                                         MemphisRule *rule);

Adds the given rule to the rule set.

rules :

 a MemphisRuleSet

rule :

 a MemphisRule

Since 0.1

memphis_rule_set_get_rule ()

MemphisRule*        memphis_rule_set_get_rule           (MemphisRuleSet *rules,
                                                         const gchar *id);

rules :

 a MemphisRuleSet

id :

 an id string

Returns :

 a MemphisRule that has the given id string or NULL otherwise. . allow-none.

Since 0.1

memphis_rule_set_remove_rule ()

gboolean            memphis_rule_set_remove_rule        (MemphisRuleSet *rules,
                                                         const gchar *id);

Removes the rule with the given id from the rules set.

rules :

 a MemphisRuleSet

id :

 an id string

Returns :

 true if the rule could be found and removed.

Since 0.1

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