380 lines
10 KiB
C++
380 lines
10 KiB
C++
/*
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Native File Dialog
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http://www.frogtoss.com/labs
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include "nfd.h"
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#include "nfd_common.h"
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const char INIT_FAIL_MSG[] = "gtk_init_check failed to initilaize GTK+";
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static void AddTypeToFilterName( const char *typebuf, char *filterName, size_t bufsize )
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{
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const char SEP[] = ", ";
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size_t len = strlen(filterName);
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if ( len != 0 )
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{
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strncat( filterName, SEP, bufsize - len - 1 );
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len += strlen(SEP);
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}
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strncat( filterName, typebuf, bufsize - len - 1 );
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}
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static void AddFiltersToDialog( GtkWidget *dialog, const char *filterList )
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{
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GtkFileFilter *filter;
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char typebuf[NFD_MAX_STRLEN] = {0};
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const char *p_filterList = filterList;
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char *p_typebuf = typebuf;
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char filterName[NFD_MAX_STRLEN] = {0};
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if ( !filterList || strlen(filterList) == 0 )
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return;
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filter = gtk_file_filter_new();
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while ( 1 )
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{
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if ( NFDi_IsFilterSegmentChar(*p_filterList) )
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{
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char typebufWildcard[NFD_MAX_STRLEN];
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/* add another type to the filter */
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assert( strlen(typebuf) > 0 );
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assert( strlen(typebuf) < NFD_MAX_STRLEN-1 );
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snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
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AddTypeToFilterName( typebuf, filterName, NFD_MAX_STRLEN );
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gtk_file_filter_add_pattern( filter, typebufWildcard );
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p_typebuf = typebuf;
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memset( typebuf, 0, sizeof(char) * NFD_MAX_STRLEN );
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}
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if ( *p_filterList == ';' || *p_filterList == '\0' )
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{
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/* end of filter -- add it to the dialog */
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gtk_file_filter_set_name( filter, filterName );
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gtk_file_chooser_add_filter( GTK_FILE_CHOOSER(dialog), filter );
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filterName[0] = '\0';
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if ( *p_filterList == '\0' )
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break;
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filter = gtk_file_filter_new();
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}
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if ( !NFDi_IsFilterSegmentChar( *p_filterList ) )
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{
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*p_typebuf = *p_filterList;
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p_typebuf++;
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}
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p_filterList++;
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}
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/* always append a wildcard option to the end*/
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filter = gtk_file_filter_new();
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gtk_file_filter_set_name( filter, "*.*" );
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gtk_file_filter_add_pattern( filter, "*" );
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gtk_file_chooser_add_filter( GTK_FILE_CHOOSER(dialog), filter );
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}
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static void SetDefaultPath( GtkWidget *dialog, const char *defaultPath )
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{
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if ( !defaultPath || strlen(defaultPath) == 0 )
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return;
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/* GTK+ manual recommends not specifically setting the default path.
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We do it anyway in order to be consistent across platforms.
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If consistency with the native OS is preferred, this is the line
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to comment out. -ml */
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gtk_file_chooser_set_current_folder( GTK_FILE_CHOOSER(dialog), defaultPath );
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}
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static nfdresult_t AllocPathSet( GSList *fileList, nfdpathset_t *pathSet )
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{
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size_t bufSize = 0;
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GSList *node;
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nfdchar_t *p_buf;
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size_t count = 0;
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assert(fileList);
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assert(pathSet);
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pathSet->count = (size_t)g_slist_length( fileList );
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assert( pathSet->count > 0 );
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pathSet->indices = NFDi_Malloc( sizeof(size_t)*pathSet->count );
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if ( !pathSet->indices )
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{
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return NFD_ERROR;
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}
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/* count the total space needed for buf */
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for ( node = fileList; node; node = node->next )
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{
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assert(node->data);
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bufSize += strlen( (const gchar*)node->data ) + 1;
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}
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pathSet->buf = NFDi_Malloc( sizeof(nfdchar_t) * bufSize );
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/* fill buf */
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p_buf = pathSet->buf;
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for ( node = fileList; node; node = node->next )
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{
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nfdchar_t *path = (nfdchar_t*)(node->data);
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size_t byteLen = strlen(path)+1;
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ptrdiff_t index;
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memcpy( p_buf, path, byteLen );
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g_free(node->data);
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index = p_buf - pathSet->buf;
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assert( index >= 0 );
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pathSet->indices[count] = (size_t)index;
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p_buf += byteLen;
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++count;
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}
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g_slist_free( fileList );
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return NFD_OKAY;
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}
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static void WaitForCleanup(void)
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{
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while (gtk_events_pending())
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gtk_main_iteration();
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}
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/* public */
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nfdresult_t NFD_OpenDialog( const nfdchar_t *filterList,
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const nfdchar_t *defaultPath,
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nfdchar_t **outPath )
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{
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GtkWidget *dialog;
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nfdresult_t result;
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if ( !gtk_init_check( NULL, NULL ) )
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{
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NFDi_SetError(INIT_FAIL_MSG);
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return NFD_ERROR;
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}
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dialog = gtk_file_chooser_dialog_new( "Open File",
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NULL,
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GTK_FILE_CHOOSER_ACTION_OPEN,
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"_Cancel", GTK_RESPONSE_CANCEL,
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"_Open", GTK_RESPONSE_ACCEPT,
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NULL );
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/* Build the filter list */
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AddFiltersToDialog(dialog, filterList);
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/* Set the default path */
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SetDefaultPath(dialog, defaultPath);
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result = NFD_CANCEL;
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if ( gtk_dialog_run( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
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{
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char *filename;
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filename = gtk_file_chooser_get_filename( GTK_FILE_CHOOSER(dialog) );
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{
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size_t len = strlen(filename);
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*outPath = NFDi_Malloc( len + 1 );
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memcpy( *outPath, filename, len + 1 );
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if ( !*outPath )
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{
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g_free( filename );
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gtk_widget_destroy(dialog);
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return NFD_ERROR;
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}
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}
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g_free( filename );
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result = NFD_OKAY;
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}
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WaitForCleanup();
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gtk_widget_destroy(dialog);
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WaitForCleanup();
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return result;
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}
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nfdresult_t NFD_OpenDialogMultiple( const nfdchar_t *filterList,
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const nfdchar_t *defaultPath,
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nfdpathset_t *outPaths )
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{
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GtkWidget *dialog;
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nfdresult_t result;
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if ( !gtk_init_check( NULL, NULL ) )
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{
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NFDi_SetError(INIT_FAIL_MSG);
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return NFD_ERROR;
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}
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dialog = gtk_file_chooser_dialog_new( "Open Files",
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NULL,
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GTK_FILE_CHOOSER_ACTION_OPEN,
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"_Cancel", GTK_RESPONSE_CANCEL,
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"_Open", GTK_RESPONSE_ACCEPT,
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NULL );
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gtk_file_chooser_set_select_multiple( GTK_FILE_CHOOSER(dialog), TRUE );
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/* Build the filter list */
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AddFiltersToDialog(dialog, filterList);
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/* Set the default path */
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SetDefaultPath(dialog, defaultPath);
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result = NFD_CANCEL;
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if ( gtk_dialog_run( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
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{
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GSList *fileList = gtk_file_chooser_get_filenames( GTK_FILE_CHOOSER(dialog) );
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if ( AllocPathSet( fileList, outPaths ) == NFD_ERROR )
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{
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gtk_widget_destroy(dialog);
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return NFD_ERROR;
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}
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result = NFD_OKAY;
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}
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WaitForCleanup();
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gtk_widget_destroy(dialog);
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WaitForCleanup();
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return result;
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}
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nfdresult_t NFD_SaveDialog( const nfdchar_t *filterList,
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const nfdchar_t *defaultPath,
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nfdchar_t **outPath )
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{
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GtkWidget *dialog;
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nfdresult_t result;
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if ( !gtk_init_check( NULL, NULL ) )
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{
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NFDi_SetError(INIT_FAIL_MSG);
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return NFD_ERROR;
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}
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dialog = gtk_file_chooser_dialog_new( "Save File",
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NULL,
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GTK_FILE_CHOOSER_ACTION_SAVE,
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"_Cancel", GTK_RESPONSE_CANCEL,
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"_Save", GTK_RESPONSE_ACCEPT,
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NULL );
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gtk_file_chooser_set_do_overwrite_confirmation( GTK_FILE_CHOOSER(dialog), TRUE );
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/* Build the filter list */
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AddFiltersToDialog(dialog, filterList);
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/* Set the default path */
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SetDefaultPath(dialog, defaultPath);
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result = NFD_CANCEL;
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if ( gtk_dialog_run( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
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{
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char *filename;
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filename = gtk_file_chooser_get_filename( GTK_FILE_CHOOSER(dialog) );
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{
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size_t len = strlen(filename);
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*outPath = NFDi_Malloc( len + 1 );
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memcpy( *outPath, filename, len + 1 );
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if ( !*outPath )
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{
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g_free( filename );
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gtk_widget_destroy(dialog);
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return NFD_ERROR;
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}
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}
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g_free(filename);
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result = NFD_OKAY;
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}
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WaitForCleanup();
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gtk_widget_destroy(dialog);
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WaitForCleanup();
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return result;
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}
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nfdresult_t NFD_PickFolder(const nfdchar_t *defaultPath,
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nfdchar_t **outPath)
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{
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GtkWidget *dialog;
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nfdresult_t result;
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if (!gtk_init_check(NULL, NULL))
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{
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NFDi_SetError(INIT_FAIL_MSG);
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return NFD_ERROR;
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}
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dialog = gtk_file_chooser_dialog_new( "Select folder",
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NULL,
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GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
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"_Cancel", GTK_RESPONSE_CANCEL,
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"_Select", GTK_RESPONSE_ACCEPT,
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NULL );
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gtk_file_chooser_set_do_overwrite_confirmation( GTK_FILE_CHOOSER(dialog), TRUE );
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/* Set the default path */
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SetDefaultPath(dialog, defaultPath);
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result = NFD_CANCEL;
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if ( gtk_dialog_run( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
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{
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char *filename;
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filename = gtk_file_chooser_get_filename( GTK_FILE_CHOOSER(dialog) );
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{
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size_t len = strlen(filename);
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*outPath = NFDi_Malloc( len + 1 );
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memcpy( *outPath, filename, len + 1 );
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if ( !*outPath )
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{
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g_free( filename );
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gtk_widget_destroy(dialog);
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return NFD_ERROR;
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}
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}
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g_free(filename);
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result = NFD_OKAY;
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}
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WaitForCleanup();
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gtk_widget_destroy(dialog);
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WaitForCleanup();
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return result;
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}
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