/*
**		BRIEF -- Basic Reconfigurable Interactive Editing Facility
**
**
**		dlg_mous.cb:
**
**		This file contains all macros for the Dialog Manager's Mouse Interface.
*/

#include "dialog.h"
#include "dlg.h"
#include "win_ctrl.h"

int _is_push_button( int col );
int _is_list( int buf_line, int buf_col );
extern void begin_word();

extern int _dialog_mouse_buf;

int mouse_choice_type,
	 new_focus,
	 focus_y,
	 focus_x1,
	 focus_x2;

/*
**	mouse_dialog
**
**	Handle all the mouse events of interest for dialog boxes
**														
*/

void mouse_dialog	  (int event, int modifier, int parm2,	int parm3 )			
{
	/* handle the events of interest */

	switch ( event )
		{
		case BTN1_DOWN:
			{
			string str;
			int curr_buf,
				 line,
				 col,
				 lx,
				 rx;

			/*		Save current buffer */	
		
			curr_buf = inq_buffer();						
			inq_position(line, col);

			/*		The _dialog_mouse_buf is a mirror image of the display
			**	buffer except instead of contols, the buffer contains control
			**	codes.   For example if a radio button	in the display buffer 
			**	looks like XXXX ( ), in the mouse info buffer it looks
			**	like 88888888.
			*/

			set_buffer(_dialog_mouse_buf);

			/*		By positioning in the mouse buffer, we can determine
			**	what the current focus is.
			*/

			move_abs(line, col);

			/*		Find the left and right edges of this control
			*/

			search_back("\t|<| ", TRUE);
			inq_position(NULL, lx);

			/* Find out where the control ends */

			move_rel(0, 1);
			search_fwd("\t|>| ", TRUE);
			inq_position(NULL, rx);

			/*		If this is the first time here, set the current focus.
			*/

			if (first_time())
				{
				focus_y = line;
				focus_x1 = lx + 1;
				focus_x2 = rx - 1;
				}

			/*		Now, check to see if the focus has changed, if so,
			**	set the new_focus flag
			*/

			if (line != parm2 || parm3 < lx + 1 || parm3 > rx - 1)
				{

				/*		Move to new position and read in one character.
				**	That character is the control code (or 0 if not over
				**	a control.
				*/				
		
				move_abs(parm2, parm3);
				str = read(1);
				mouse_choice_type = atoi(str);

				/*		If the mouse down was over a control we have a new_focus */

				if (mouse_choice_type != 0)
					{

					/*		Find the left edge of the control 
					*/

					search_back("\t|<| ", TRUE);
					inq_position(focus_y, focus_x1);
					move_rel(0, 1);
					search_fwd("\t|>| ", TRUE);
					inq_position(NULL, focus_x2);
					focus_x1 ++;
					focus_x2 --;
					new_focus = 1;
					}
				}
	
			/*		If the focus has not changed and the last mouse_choice is 
			**	0 (becuase of a click outside of any control, need to reset
			**	the mouse_choice_type
			*/

			else if (mouse_choice_type == 0)
				{
				move_abs(parm2, parm3);
				str = read(1);
				mouse_choice_type = atoi(str);
				}

			set_buffer(curr_buf);
			}

		case BTN1_CLICK:
			{

			/*	 If we are still in focus and we have a valid mouse_choice_type */

			if (parm2 == focus_y && parm3 >= focus_x1 && parm3 <= focus_x2 &&
				 mouse_choice_type)
					{
					/* if the fcous has not changed */

					if (!new_focus)
						{
						/*		Send a button pick.
						*/
						if (mouse_choice_type == CHECK ||
							 mouse_choice_type == RADIO ||
							 mouse_choice_type == PUSH)

							_dlg_pick_btn();		 

						/*		Send an alter list
						*/
						else if (mouse_choice_type == LIST)
							{
							raise_anchor ();
							move_abs(parm2, parm3);
							begin_word();
							_list_highlight ();
							}

						/*		Must be a field, so just position the cursor
						*/
						else
							{
							raise_anchor();
							move_abs(parm2, parm3);
							}
						}

					else if (_dialog_exit()) 
						{
						string temp;

						raise_anchor();
						set_buffer (_dialog_data_buf);
						top_of_buffer();

						/* locate the line in the control file where the control is defined */

						sprintf( temp, "( @%d @, @%d @)", focus_y, focus_x1);
						search_fwd( temp, TRUE, TRUE );
						beginning_of_line();

						/* send the enter event */

						_dialog_enter();			

						if (mouse_choice_type == CHECK ||
							 mouse_choice_type == RADIO ||
							 mouse_choice_type == PUSH)

							_dlg_pick_btn();
						
						else if (mouse_choice_type == LIST)
							{
							int x1, x2;

							inq_marked(NULL, x1, NULL, x2);

							/*		If not in a marked are, we must be selecting
							**	a new list entry
							*/
		
							if (parm3 < x1 || parm3 > x2)
								{
								raise_anchor();
								move_abs(parm2, parm3);
								begin_word();
								_list_highlight ();
								}
							}

						/*		This must be a field, so position the cursor.
						*/
						else
							{
							raise_anchor();
							move_abs(parm2, parm3);
							}
						}
					new_focus = 0;
				}
			}
		/*		For close and set window, just want to exit the dialog manager.
		*/
		case	CLOSE_WIN:
		case	SET_WIN:

			_dialog_f10();
		}
	}