metadata.h File Reference

#include <libermetadb/ermetadb.h>

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Functions
G_BEGIN_DECLS void	meta_initialize (void)
void	meta_finalize (void)
void	meta_file_open (const gchar *filepath)
gdouble	meta_get_h_position (void)
gdouble	meta_get_v_position (void)
gfloat	meta_get_zoom_level (void)
gboolean	meta_get_full_screen (void)
void	meta_set_h_position (gdouble position)
void	meta_set_v_position (gdouble position)
void	meta_set_zoom_level (gfloat factor)
void	meta_set_full_screen (gboolean is_full_screen)

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Function Documentation

void meta_file_open

(

const gchar *

filepath

)

Definition at line 196 of file metadata.c.

References DEFAULT_FULL_SCREEN, DEFAULT_H_POSITION, DEFAULT_V_POSITION, DEFAULT_ZOOM_LEVEL, ER_OK, ermetadb_close(), ermetadb_local_get_application_data(), ermetadb_local_open(), g_filename, g_full_screen, g_h_position, g_path, g_should_save, g_v_position, g_zoom_level, get_boolean(), get_double(), LOGPRINTF, meta_file_close(), META_FULL_SCREEN, META_H_POSITION, META_V_POSITION, META_ZOOM_LEVEL, metadata_table_add_column(), metadata_table_free, and metadata_table_new().

Referenced by view_open_uri().

{
    LOGPRINTF("entry file='%s'", filepath);
    
    // close if already open
    if (g_path || g_filename)
    {
        meta_file_close();
    }

    g_path = g_path_get_dirname(filepath);
    g_filename = g_path_get_basename(filepath);

    // initialize to default values
    g_should_save = FALSE; 
    g_h_position  = DEFAULT_H_POSITION;
    g_v_position  = DEFAULT_V_POSITION;
    g_zoom_level  = DEFAULT_ZOOM_LEVEL;
    g_full_screen = DEFAULT_FULL_SCREEN;

    // try to open database
    erMetadb db = ermetadb_local_open(g_path, FALSE);
    if (db == NULL) {   // db doesn't exist, ok
        LOGPRINTF("No (valid) metadata found for %s", filepath);
        return;
    }

    // read values from db
    metadata_table *names_table = metadata_table_new();
    metadata_table_add_column(names_table, META_H_POSITION);
    metadata_table_add_column(names_table, META_V_POSITION);
    metadata_table_add_column(names_table, META_ZOOM_LEVEL);
    metadata_table_add_column(names_table, META_FULL_SCREEN);

    metadata_table *results_table = NULL;
    int ret = ermetadb_local_get_application_data(db,
                                                  g_filename,
                                                  names_table,
                                                  &results_table);
    if (ret == ER_OK && results_table) {
        // assign to static variables
        get_double (results_table, META_H_POSITION,  &g_h_position);
        get_double (results_table, META_V_POSITION,  &g_v_position);
        get_double (results_table, META_ZOOM_LEVEL,  &g_zoom_level);
        get_boolean(results_table, META_FULL_SCREEN, &g_full_screen);
    } else {
        LOGPRINTF("No (valid) application data found for %s, error %d", filepath, ret);
    }

    metadata_table_free(names_table);
    metadata_table_free(results_table);
    ermetadb_close(db);
}

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void meta_finalize

(

void

)

Definition at line 185 of file metadata.c.

References g_filename, g_path, LOGPRINTF, and meta_file_close().

Referenced by destroy_cb().

{
    LOGPRINTF("entry");

    if (g_path || g_filename)
    {
        meta_file_close();
    }
}

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gboolean meta_get_full_screen

(

void

)

Definition at line 269 of file metadata.c.

References g_full_screen.

Referenced by view_open_uri().

{
    return g_full_screen;
}

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gdouble meta_get_h_position

(

void

)

Definition at line 251 of file metadata.c.

References g_h_position.

{
    return g_h_position;
}

gdouble meta_get_v_position

(

void

)

Definition at line 257 of file metadata.c.

References g_v_position.

{
    return g_v_position;
}

gfloat meta_get_zoom_level

(

void

)

Definition at line 263 of file metadata.c.

References g_zoom_level.

Referenced by view_open_uri().

{
    return (gfloat) g_zoom_level;
}

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G_BEGIN_DECLS void meta_initialize

(

void

)

File Name : metadata.h

Description: File metadata functions Copyright (C) 2009 iRex Technologies B.V. All rights reserved.

Definition at line 179 of file metadata.c.

References LOGPRINTF.

Referenced by view_create().

{
    LOGPRINTF("entry");
}

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void meta_set_full_screen

(

gboolean

is_full_screen

)

Definition at line 314 of file metadata.c.

References g_full_screen, g_should_save, and LOGPRINTF.

Referenced by view_full_screen().

{
    LOGPRINTF("entry");
    
    if (is_full_screen != g_full_screen)
    {
        LOGPRINTF("saved full screen: %d", is_full_screen);
        g_full_screen = is_full_screen;
        g_should_save = TRUE;
    }
}

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void meta_set_h_position

(

gdouble

position

)

Definition at line 275 of file metadata.c.

References g_h_position, g_should_save, and LOGPRINTF.

Referenced by hadjustment_changed_cb().

{
    LOGPRINTF("entry");
    
    if (position != g_h_position)
    {
        LOGPRINTF("saved h position: %f", position);
        g_h_position  = position;
        g_should_save = TRUE;
    }
}

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void meta_set_v_position

(

gdouble

position

)

Definition at line 288 of file metadata.c.

References g_should_save, g_v_position, and LOGPRINTF.

Referenced by vadjustment_changed_cb().

{
    LOGPRINTF("entry");
    
    if (position != g_v_position)
    {
        LOGPRINTF("saved v position: %f", position);
        g_v_position  = position;
        g_should_save = TRUE;
    }
}

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void meta_set_zoom_level

(

gfloat

factor

)

Definition at line 301 of file metadata.c.

References g_should_save, g_zoom_level, and LOGPRINTF.

Referenced by view_set_zoom_level(), view_zoom_in(), and view_zoom_out().

{
    LOGPRINTF("entry");
    
    if (factor != g_zoom_level)
    {
        LOGPRINTF("saved zoom: %f", factor);
        g_zoom_level = factor;
        g_should_save = TRUE;
    }
}

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