/*
 * Class TimePrefsBrowser is a View class that implements the time the editing
 * component of the instructor prefs interface.  It's composed fundamentally of
 * an HBox of text editors.  The leftmost text editor is read-only, since it
 * contains the time labels.  The other editors are a sublass Sted, with Tab
 * and Return specialized to tab horizontally to next editable label and move
 * vertically in the current column, respecitively.
 *
 * See timeprefs.h for the the companion Model class.
 */

#include <InterViews/box.h>
#include <InterViews/frame.h>
#include <InterViews/scene.h>
#include "timeprefed.h"


class TimePrefsBrowser : public MonoScene {

  public:
    TimePrefsBrowser(int starttime, int endtime, int granularity);
    /*
     * Construct a browser with the given start time, end time, and time
     * granularity.  E.g., 8AM, 5PM, 30 min.  The time values must be 4-digit
     * integers in 24-hour time.  The time granularity must be an integer
     * between 1 and 60.
     */

  protected:
    HBox* ComposeEditors(int starttime, int endtime, int granularity);
    /*
     * Build the text editors that comprise each column of the time prefs
     * display.
     */

    VBox* ComposeLeftColumn(
	int starttime, int endtime, int granularity, int& numrows);
    /*
     * Build the left column that contains the hours of the day, starting at
     * the given starttime, ending at the given end time, and separated by the
     * given granularity.  Return the total number of rows (i.e., time slots)
     * in the given numrows ref parm.
     */

    VBox* ComposeColumn(const char* title, int numrows);
    /*
     * Compose one of the days of the week columns, with the given column
     * heading and the given number of rows.
     */

    void SetInitialTimes(TimePrefsEditor* ed, int starttime, int numrows);
    /*
     * Set the intial time values in the lefthand display editor.
     */

    HBox* columns;	/* The hbox of labled text editors.  */
    int numcolumns;	/* Fixed number of text editor columns (this should
			 * probably be a constructor parm). */
};