misc.c

用GTK+做用户界面 股票每日分时行情用数据库管理——MYSQL 软件应用方式客户端/服务器模式 基于TCP/IP的C/S通信模式 实现STOCK

 GtkWidget *i_label;
// e_assert_widget(parent, "parent is not a GtkWidget");
 i_label = gtk_label_new(text);
 if(GTK_IS_CONTAINER(parent))
    gtk_container_add(GTK_CONTAINER(parent),i_label );
 else
    gtk_box_pack_start(GTK_BOX(parent), i_label,FALSE,FALSE,0);
 gtk_widget_show(i_label);
 return i_label;
}

/*
 * --- CloseDialog
 *
 * Routine to close the about dialog window.
 */
void closeShowMessage (GtkWidget *widget, gpointer data)
{
    GtkWidget *dialog_widget = (GtkWidget *) data;

    /* --- Close the widget --- */
    gtk_widget_destroy (dialog_widget);
}



/*
 * ClearShowMessage
 *
 * Release the window "grab" 
 * Clear out the global dialog_window since that
 * is checked when the dialog is brought up.
 */
void clearShowMessage (GtkWidget *widget, gpointer data)
{
    gtk_grab_remove (widget);
}


/*
 * ShowMessage
 *
 * Show a popup message to the user.
 *
 * sztitle -- 对话框标题
 * szmessage -- 对话框显示内容
 */
void showMessage (char *szTitle, char *szMessage)
{
    GtkWidget *label;
    GtkWidget *button;
    GtkWidget *dialog_window;

    /* --- Create a dialog window --- */
    dialog_window = gtk_dialog_new ();

    gtk_signal_connect (GTK_OBJECT (dialog_window), "destroy",
              GTK_SIGNAL_FUNC (clearShowMessage),
              NULL);

    /* --- Set the title and add a border --- */
    gtk_window_set_title (GTK_WINDOW (dialog_window), szTitle);
    gtk_container_border_width (GTK_CONTAINER (dialog_window), 0);

    /* --- Create an "Ok" button with the focus --- */
    button = gtk_button_new_with_label ("OK");

    gtk_signal_connect (GTK_OBJECT (button), "clicked",
              GTK_SIGNAL_FUNC (closeShowMessage),
              dialog_window);

    /* --- Default the "Ok" button --- */
    GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area), 
              button, TRUE, TRUE, 0);
    gtk_widget_grab_default (button);
    gtk_widget_show (button);

    /* --- Create a descriptive label --- */
    label = gtk_label_new (szMessage);

    /* --- Put some room around the label text --- */
    gtk_misc_set_padding (GTK_MISC (label), 10, 10);

    /* --- Add label to designated area on dialog --- */
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->vbox), 
              label, TRUE, TRUE, 0);

    /* --- Show the label --- */
    gtk_widget_show (label);


    /* --- Show the dialog --- */
    gtk_widget_show (dialog_window);

    /* --- Only this window can have actions done. --- */
    gtk_grab_add (dialog_window);
}


/*
 * CanWindowClose
 *
 * Function that determines that if the dialog
 * window can be closed.
 */
gint CanWindowClose (GtkWidget *widget)
{
    /* --- TRUE => cannot close --- */
    /* --- FALSE => can close --- */
    return (pdata->bProgressUp);
}

/*
 * UpdateProgress
 *
 * Update the progress window to reflect the state
 * of the file that is being loaded.  
 *
 * pos - how much of the file has been loaded.
 * len - length of the file
 * (pos / len) = % file has been loaded.
 */
void UpdateProgress (long pos, long len)
{
    gfloat pvalue;
    int pct;
 
    /* --- Prevent divide by zero errors --- */
    if (len > 0) {

        /* --- Calculate the percentage --- */
        pvalue = (gfloat) pos / (gfloat) len;
    
        pct = pvalue * 100;

        if (pdata->nLastPct != pct) {

            /* --- Update the displayed value --- */
            gtk_progress_set_percentage (GTK_PROGRESS (pdata->progressbar), 
                                         pvalue);

            /* --- Repaint any windows - like the progress bar --- */
            while (gtk_events_pending ()) {
                gtk_main_iteration ();
            }
            pdata->nLastPct = pct;
        }
    }
}



/*
 * StartProgress 
 *
 * Create a window for the progress bar
 *
 *  hint---进度条框提示内容
 */
void StartProgress (gchar *hint)
{
    GtkWidget *label;
    GtkWidget *table;
    GtkWidget *window;
    GtkAdjustment *adj;

    pdata = (typProgressData *)g_malloc(sizeof(typProgressData));
    pdata->nLastPct = -1;
    pdata->bProgressUp = TRUE;
    /*
     * --- Create the top level window
     */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    pdata->window = window;
    
    /* --- Hook up the destroy  --- */
    gtk_signal_connect (GTK_OBJECT (window), "delete_event",
			GTK_SIGNAL_FUNC (CanWindowClose), pdata);
    
    gtk_container_border_width (GTK_CONTAINER (window), 10);
    
    /* --- Create a table --- */
    table = gtk_table_new (3, 2, TRUE);
    gtk_container_add (GTK_CONTAINER (window), table);
    
    /* --- Add a label to the table --- */
    label = gtk_label_new (hint);
    gtk_table_attach_defaults (GTK_TABLE (table), label, 0,2,0,1);
    gtk_widget_show (label);
    
    /* --- Add the progress bar to the table --- */
    adj = (GtkAdjustment *) gtk_adjustment_new (0, 0, 400, 0, 0, 0);
    pdata->progressbar = gtk_progress_bar_new_with_adjustment (adj);
    gtk_table_attach_defaults (GTK_TABLE (table), 
                               pdata->progressbar, 0,2,1,2);
    gtk_widget_show (pdata->progressbar);

    
    /* --- Show everything --- */
    gtk_widget_show (table);
    gtk_widget_show (window);
}


/*
 * EndProgress
 *
 * Close down the progress bar.
 */
void EndProgress ()
{
    /* --- Allow it to close --- */
    pdata->bProgressUp = FALSE;

    /* --- Destroy the window --- */
    gtk_widget_destroy (pdata->window);

    /* --- Free used memory. --- */
    g_free (pdata);

    pdata = NULL;
}


/*-----------------------------------------
/ create Clist dialog
/ parent --父窗口或容器
/ cols   -- list窗口列数
/ item-selected -- 点击list行记录时回呼函数
/-------------------------------------------*/ 

GtkWidget *createClist(GtkWidget *parent, gint cols, GtkSignalFunc item_selected)
{
 GtkWidget *i_s, *i_list;
// e_assert_widget(parent, "parent is not a GtkWidget");
 i_s = gtk_scrolled_window_new(NULL, NULL);
 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(i_s),
      GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 gtk_box_pack_start(GTK_BOX(parent), i_s, TRUE, TRUE, 0);
 gtk_widget_show(i_s);

 i_list = gtk_clist_new_with_titles(cols, NULL);
 gtk_signal_connect(GTK_OBJECT(i_list), "select_row",
 GTK_SIGNAL_FUNC(internalClistSelect), i_list);
 gtk_signal_connect(GTK_OBJECT(i_list), "select_row",
 GTK_SIGNAL_FUNC(item_selected), i_list);
 gtk_clist_set_shadow_type(GTK_CLIST(i_list), GTK_SHADOW_OUT);
 gtk_clist_set_selection_mode(GTK_CLIST(i_list), GTK_SELECTION_SINGLE);
 gtk_clist_column_titles_show(GTK_CLIST(i_list));
 gtk_container_add(GTK_CONTAINER(i_s), i_list);
 gtk_widget_show(i_list);
 return i_list;
}

/*---------------------------------------
/  设置list构件列项
/  list --list 构件
/  title -- 列标题
/  width -- 列宽度
/-------------------------------------------*/
void setupClist(GtkWidget *list, gint col, gchar *title, gint width)
{
// e_assert_widget(list, "list is not a GtkWidget");
 gtk_clist_set_column_title(GTK_CLIST(list), col, title);
 gtk_clist_set_column_width(GTK_CLIST(list), col, width);
}

void internalClistSelect(GtkWidget *list, gint c, gint r)
{
 gchar *internal;
 int i;
// e_assert_widget(list, "list is not a GtkWidget");
 strcpy(current_list_selection, "");
 current_list_row = c;
 for(i = 0; i < GTK_CLIST(list)->columns; i++)
 {
  gtk_clist_get_text(GTK_CLIST(list), c, i, &internal);
  sprintf(current_list_selection, "%s | %s",current_list_selection, internal);
  
 }
}


gint getClistRow()
{
   return current_list_row;
}

gchar *getClist()
{
 return current_list_selection;
}

/*-------------------------------------------------
/ 获取GTKClist构件中指定的行,列的数据???????????????
/ list -- GTKClist 构件
/ c --行
/ r -- 列
/---------------------------------------------------*/ 
gchar *getClistText(GtkWidget *list, gint c, gint r)
{
 gchar *internal;
// e_assert_widget(list, "list is not a GtkWidget");
 if(c>GTK_CLIST(list)->rows); return NULL;
 if(r>GTK_CLIST(list)->columns); return NULL;
 
 gtk_clist_get_text(GTK_CLIST(list), c, r, &internal);
 
 return internal;
}

/*-------------------------------------------------
/ 设置GTKClist构件中指定的行,列的数据???????????????
/ list -- GTKClist 构件
/ c --行
/ r -- 列
/---------------------------------------------------*/ 
gint setClistText(GtkWidget *list, gint c, gint r,gchar *text)
{
// e_assert_widget(list, "list is not a GtkWidget");
 if(c>GTK_CLIST(list)->rows); return FAIL;
 if(r>GTK_CLIST(list)->columns); return FAIL;
 
 gtk_clist_set_text(GTK_CLIST(list), c, r, text);
 
 return SUCCESS;
}

/*--------------------------------------------
/  插入list纪录到最后
/  list -- list 构件
/  text --  字符串数组
/--------------------------------------------*/
void insertClist(GtkWidget *list, gchar *text[])
{
// e_assert_widget(list, "list is not a GtkWidget");
 gtk_clist_append(GTK_CLIST(list), text);
}

/*--------------------------------------------
/  插入list纪录到指定位址
/  list -- list 构件
/  text --  字符串数组
/--------------------------------------------*/
void insertClistRow(GtkWidget *list, gchar *text[])
{
// e_assert_widget(list, "list is not a GtkWidget");
 gtk_clist_insert(GTK_CLIST(list),current_list_row,text);
}

/*-------------------------------------------
/  删除list构件中当前记录
/----------------------------------------*/
void removeClist(GtkWidget *list)
{
// e_assert_widget(list, "list is not a GtkWidget");
 gtk_clist_remove(GTK_CLIST(list), current_list_row);
}



    
/* 
 * Get the selected filename and print it to the console 
 */
void file_ok_sel (GtkWidget *w, GtkFileSelection *fs)
{
    char *sTempFile;

    /* --- Get the name --- */
    sTempFile = gtk_file_selection_get_filename (GTK_FILE_SELECTION (fs));

//    printf ("Getting %s\n", sTempFile);

    /* --- Allocate space and save it. --- */
    sFilename =(char *)
       malloc (sizeof (char) * (strlen (sTempFile) + 1));
    strcpy (sFilename, sTempFile);

    /* --- Destroy the file selection --- */
    gtk_widget_destroy (filew);
}


void file_cancel_sel (GtkWidget *w, GtkFileSelection *fs)
{

    /* --- Destroy the file selection --- */
    sFilename = (char *)malloc (sizeof (char) * 10);
    strcpy (sFilename, "");
    gtk_widget_destroy (filew);
}


/*
 * DestroyDialog
 *
 * Destroy the dialog (obvious, eh?) but also remove the
 * grab and close the modal. 
 */
int DestroyDialog (GtkWidget *widget, gpointer *data)
{
//    printf ("widget destroyed\n");
//    sFilename = malloc (sizeof (char) * 10);
//    strcpy (sFilename, "");
    gtk_grab_remove (widget);
    gtk_main_quit ();
    return (FALSE);
}

/*
 * getFilename 
返回选择文件