simple editor

#include "simpleEditor.h" #include "ProcessFunction.h" #include "CreateFindWindow.h" gboolean WindowDeleteEvent(GtkWidget *widget,GdkEvent *event,gpointer data) { CloseTheApp(widget,data); return TRUE; } void MenuFind(GtkWidget *widget,gpointer data) { GtkWidget *ProcessWindow; ProcessWindow=CreateFindWindow(); gtk_widget_show(ProcessWindow); } void CloseTheApp(GtkWidget *widget,gpointer data) { GtkDialog *dialog; GtkWidget *label; /* if file have been modified, * save file at first */ if( gtk_text_buffer_get_modified(TextArea->buffer)==TRUE ) MenuSaveItem(widget,data); dialog=gtk_dialog_new_with_buttons("Do you want to quit?", MainWindow, GTK_DIALOG_MODAL, GTK_STOCK_YES,GTK_RESPONSE_ACCEPT, GTK_STOCK_NO,GTK_RESPONSE_CANCEL, NULL); label=gtk_label_new("Do you want to quit?"); gtk_widget_show(label); gtk_box_pack_start( GTK_BOX(dialog->vbox), label, TRUE,TRUE,3); /* confirm that user want to quit or not */ if( gtk_dialog_run(dialog)==GTK_RESPONSE_ACCEPT ) gtk_main_quit(); gtk_widget_destroy(dialog); } void MenuNewItem(GtkWidget *widget,gpointer data) { /* a new file that donnot have name but have been modified, * or an exist file modified , save it firstly. */ if( gtk_text_buffer_get_modified(TextArea->buffer)==TRUE || pFileName!=NULL ) MenuSaveItem(widget,data); g_free(pFileName); pFileName=NULL; /* destroy TextView::buffer */ TextArea->buffer=NULL; } void MenuOpenItem(GtkWidget *widget,gpointer data) { gchar *temp; GtkTextBuffer* buffer; if( gtk_text_buffer_get_modified(TextArea->buffer)==TRUE || pFileName!=NULL ) MenuSaveItem(widget,data); temp=GetFullPathName(GTK_FILE_CHOOSER_ACTION_OPEN); if( temp!=NULL ) { if( !CanRead(temp) ) gnome_dialog_run_and_close( gnome_error_dialog_parented( "ERROR : cann't open file", GTK_WINDOW(MainWindow))); else { buffer=GetTextBuffer(temp); g_free(pFileName); pFileName=temp; gtk_text_view_set_buffer(TextArea,buffer); } } } void MenuSaveItem(GtkWidget *widget,gpointer data) { GtkWidget* dialog; if( gtk_text_buffer_get_modified(TextArea->buffer)==FALSE ) return ; if( pFileName==NULL ) { pFileName=GetFullPathName(GTK_FILE_CHOOSER_ACTION_SAVE); } if( pFileName!=NULL ) { if( CanWrite(pFileName) ) { SaveTextBuffer(TextArea->buffer,pFileName); } else { gnome_dialog_run_and_close( GTK_DIALOG( gnome_error_dialog_parented( "ERROR : can write file", MainWindow))); pFileName=NULL; } } } void MenuSaveAsItem(GtkWidget *widget,gpointer data) { pFileName=NULL; MenuSaveItem(widget,data); } gboolean CanRead(gchar *fileName) { if( fileName!=NULL && (access(fileName,F_OK|R_OK)==0) ) return TRUE; return FALSE; } gboolean CanWrite(gchar *fileName) { if( fileName==NULL ) return FALSE; if( access(fileName,F_OK)==0 ) { if( access(fileName,W_OK)==0 ) return TRUE; else return FALSE; } else { int fd; fd=open(fileName,O_WRONLY|O_CREAT,0644); if( fd==-1 ) return FALSE; else { close(fd); return TRUE; } } } gchar *GetFullPathName(GtkFileChooserAction action) { GtkDialog *dialog; gchar *filename; if( action==GTK_FILE_CHOOSER_ACTION_OPEN ) { dialog=gtk_file_chooser_dialog_new( "Open File", GTK_WINDOW(MainWindow), action, GTK_STOCK_CANCEL,GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN,GTK_RESPONSE_ACCEPT, NULL); switch( gtk_dialog_run(dialog) ) { case GTK_RESPONSE_ACCEPT: filename=gtk_file_chooser_get_filename( GTK_FILE_CHOOSER(dialog)); break; default: filename=NULL; break; } gtk_widget_destroy(dialog); } else if( action==GTK_FILE_CHOOSER_ACTION_SAVE ) { dialog=gtk_file_chooser_dialog_new( "Save As..", GTK_WINDOW(MainWindow), action, GTK_STOCK_CANCEL,GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE,GTK_RESPONSE_ACCEPT, NULL); switch( gtk_dialog_run(dialog) ) { case GTK_RESPONSE_ACCEPT: filename=gtk_file_chooser_get_filename( GTK_FILE_CHOOSER(dialog)); break; default: filename=NULL; break; } gtk_widget_destroy(dialog); } return filename; } #define STRLEN 256 GtkTextBuffer* GetTextBuffer(gchar *filename) { int fd; GtkTextBuffer *buffer; char strBuffer[STRLEN]; GtkTextIter iter; int readLen; buffer=gtk_text_buffer_new(NULL); fd=open(filename,O_RDONLY); while( (readLen=read(fd,strBuffer,STRLEN))!=0 ) { gtk_text_buffer_get_end_iter(buffer,&iter); gtk_text_buffer_insert(buffer,&iter,strBuffer,readLen); } close(fd); return buffer; } #undef STRLEN void SaveTextBuffer(GtkTextBuffer *buffer,gchar *filename) { gchar *contents; int fd; size_t contentLen; GtkTextIter begin,end; fd=open(filename,O_WRONLY); gtk_text_buffer_get_start_iter(buffer,&begin); gtk_text_buffer_get_end_iter(buffer,&end); contents=gtk_text_buffer_get_text(buffer,&begin,&end,TRUE); contentLen=strlen(contents); write(fd,contents,contentLen); close(fd); }