fted_draw.c

操作系统SunOS 4.1.3版本的源码

    fted_edit_pad_info[pad_num].modified = TRUE;
    
}


fted_point_wipe_reset(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */
{
    pt_wipe_down = FALSE;
}



/*
 * The operations rect, cut, copy, paste and, to an extent, line all use 
 * a rectangle that is drawn on the screen. These static variables
 * hold info about the rect (in the various coordinate systems).
 * 
 */

static int base_x_wc;	/* base corner of rectangle or endpt of line (in window coordinates)	*/
static int base_y_wc;
static int base_x_cc;	/* base corner of rectangle or endpt of line (in cell coordinates)	*/
static int base_y_cc;
static int end_x_wc;	/* end point of rectangle or endpt of line (in window coordinates)	*/
static int end_y_wc;
static int pad_org_x;	/* origin of pad (in window coordinates)				*/
static int pad_org_y;
static int button_pressed = FALSE; /* true if the mouse button has been pressed down		*/

#define DRAW_RECT_OUTLINE(x, y) 					\
   pw_vector(fted_canvas_pw, base_x_wc, base_y_wc, x,			\
   		base_y_wc, PIX_XOR, FOREGROUND);			\
   pw_vector(fted_canvas_pw, x, base_y_wc, x, y, PIX_XOR, FOREGROUND);	\
   pw_vector(fted_canvas_pw, x, y, base_x_wc, y, PIX_XOR, FOREGROUND);	\
   pw_vector(fted_canvas_pw, base_x_wc, y, base_x_wc,			\
   		base_y_wc, PIX_XOR, FOREGROUND);
		
#define DRAW_LINE(x,y)							\
   pw_vector(fted_canvas_pw, base_x_wc, base_y_wc, x, y, PIX_XOR, FOREGROUND);



fted_line0(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    fted_message_user("To draw a line, press down a mouse button and move the mouse.");
    fted_line_reset(x, y, pad_num, mouse_button, shifted);
}


fted_line1(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;
    
    GET_ORG(pad_org_x, pad_org_y);
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);

    base_x_cc = cur_cell_x;
    base_y_cc = cur_cell_y;
    base_x_wc = end_x_wc = (cur_cell_x * CELL_SIZE + pad_org_x) + (CELL_SIZE / 2);
    base_y_wc = end_y_wc = (cur_cell_y * CELL_SIZE + pad_org_y) + (CELL_SIZE / 2);

    DRAW_LINE(end_x_wc, end_y_wc);
    fted_message_user("Now, move the mouse.");
    button_pressed = TRUE;
}



fted_line2(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;

    if (!button_pressed)
       return;
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);
    DRAW_LINE(end_x_wc, end_y_wc);
    end_x_wc = (cur_cell_x * CELL_SIZE + pad_org_x) + (CELL_SIZE / 2);
    end_y_wc = (cur_cell_y * CELL_SIZE + pad_org_y) + (CELL_SIZE / 2);
    DRAW_LINE(end_x_wc, end_y_wc);

}

fted_line_reset(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */
{
    if (button_pressed) {
	DRAW_LINE(end_x_wc, end_y_wc);
	button_pressed = FALSE;
    }
}
    


fted_line3(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;
    int  color;
    struct pixrect *pr;
	    
    if (!button_pressed)
       return;

    DRAW_LINE(end_x_wc, end_y_wc);
    
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);

    if (mouse_button == MS_LEFT)
	color = FOREGROUND;
    else
	color = BACKGROUND;
    
    fted_undo_push(&(fted_edit_pad_info[pad_num]));
    fted_draw_line_of_cells(pad_org_x, pad_org_y, cur_cell_x, cur_cell_y,
	                   			 base_x_cc, base_y_cc, color);
    pr = fted_edit_pad_info[pad_num].pix_char_ptr->pc_pr;
    pr_vector(pr,cur_cell_x, cur_cell_y, base_x_cc, base_y_cc, PIX_SRC, color);
    
    pw_write(fted_canvas_pw, fted_edit_pad_info[pad_num].proof.out_fted_line2.r_left + PROOF_X_OFFSET,
	                    fted_edit_pad_info[pad_num].proof.out_fted_line2.r_top + PROOF_Y_OFFSET,
			    fted_char_max_width, fted_char_max_height,
			    PIX_SRC, pr, 0, 0);

    fted_message_user("  ");
    button_pressed = FALSE;
    fted_edit_pad_info[pad_num].modified = TRUE;
}


fted_rect0(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    fted_message_user("To define a rectangle, press down a mouse button and move the mouse.");
    fted_rect_reset(x, y, pad_num, mouse_button, shifted);
}


fted_rect1(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;
    
    GET_ORG(pad_org_x, pad_org_y);
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);

    base_x_cc = cur_cell_x;
    base_y_cc = cur_cell_y;
    base_x_wc = end_x_wc =
    				(cur_cell_x * CELL_SIZE + pad_org_x) + (CELL_SIZE / 2);
    base_y_wc = end_y_wc =
    				(cur_cell_y * CELL_SIZE + pad_org_y) + (CELL_SIZE / 2);

    DRAW_RECT_OUTLINE(end_x_wc, end_y_wc);
    fted_message_user("Now, move the mouse.");
    button_pressed = TRUE;
}



fted_rect2(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;

    if (!button_pressed)
       return;
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);
    DRAW_RECT_OUTLINE(end_x_wc, end_y_wc);
    end_x_wc = (cur_cell_x * CELL_SIZE + pad_org_x) + (CELL_SIZE / 2);
    end_y_wc = (cur_cell_y * CELL_SIZE + pad_org_y) + (CELL_SIZE / 2);
    DRAW_RECT_OUTLINE(end_x_wc, end_y_wc);

}

fted_rect_reset(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */
{
    if (button_pressed) {
	DRAW_RECT_OUTLINE(end_x_wc, end_y_wc);
	button_pressed = FALSE;
    }
}
    


fted_rect3(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */

{
    register int cur_cell_x, cur_cell_y;
    int  color;
    struct pixrect *pr;
	    
    if (!button_pressed)
       return;
    DRAW_RECT_OUTLINE(end_x_wc, end_y_wc);
    
    GET_CELL(cur_cell_x, cur_cell_y, x, y, pad_org_x, pad_org_y);

	if (mouse_button == MS_LEFT)
	   color = FOREGROUND;
	else
	   color = BACKGROUND;

    fted_undo_push(&(fted_edit_pad_info[pad_num]));
    fted_draw_line_of_cells(pad_org_x, pad_org_y, cur_cell_x, cur_cell_y,
                			 base_x_cc, cur_cell_y, color);
    fted_draw_line_of_cells(pad_org_x, pad_org_y, base_x_cc, cur_cell_y,
        	       			 base_x_cc, base_y_cc, color);
    fted_draw_line_of_cells(pad_org_x, pad_org_y, base_x_cc, base_y_cc,
					 cur_cell_x, base_y_cc, color);
    fted_draw_line_of_cells(pad_org_x, pad_org_y, cur_cell_x, base_y_cc,
	 				 cur_cell_x, cur_cell_y, color);
    pr = fted_edit_pad_info[pad_num].pix_char_ptr->pc_pr;
    pr_vector(pr, cur_cell_x, cur_cell_y, base_x_cc, cur_cell_y,
					PIX_SRC, color);
    pr_vector(pr, base_x_cc, cur_cell_y, base_x_cc, base_y_cc,
					PIX_SRC, color);
    pr_vector(pr, base_x_cc, base_y_cc,    cur_cell_x, base_y_cc,
					PIX_SRC, color);
    pr_vector(pr, cur_cell_x, base_y_cc, cur_cell_x,
					cur_cell_y, PIX_SRC, color);

    pw_write(fted_canvas_pw, fted_edit_pad_info[pad_num].proof.out_fted_line2.r_left +
					PROOF_X_OFFSET,
	                    fted_edit_pad_info[pad_num].proof.out_fted_line2.r_top +
			    		PROOF_Y_OFFSET,
			    fted_char_max_width, fted_char_max_height,
			    PIX_SRC, pr, 0, 0);

    fted_message_user("  ");
    button_pressed = FALSE;
    fted_edit_pad_info[pad_num].modified = TRUE;
}

/*
 * A pixrect is used as the buffer to hold data used by the cut,copy and
 * paste routines. fted_buffer_rect contains the location and size of the
 * buffer.
 * 
 * previous_shift is used in a hack to implement an accelerator for
 * the cut/copy - paste steps. If the shift key is held down while in
 * cut or copy mode, paste mode is entered. previous_shift is used to
 * tell if the shift key is pressed or left up during an operation. 
 */

static unsigned int buffer[((MAX_FONT_CHAR_SIZE_WIDTH / 32) + 1)*MAX_FONT_CHAR_SIZE_HEIGHT];
mpr_static(fted_buffer_pixrect, MAX_FONT_CHAR_SIZE_WIDTH, MAX_FONT_CHAR_SIZE_HEIGHT, 1,
			(short *)buffer);
struct pixrect	*fted_buffer_pr = &fted_buffer_pixrect;
struct rect 	fted_buffer_rect;
static int	buffer_empty = TRUE;

static int 	previous_shift;			/* the previous value of the shift key*/

fted_cut_copy1(x, y, pad_num, mouse_button, shifted)
register int	x, y;				/* coord of point	*/
register int	pad_num;			/* index of button	*/
int		mouse_button;			/* which mouse button was used */
int		shifted;			/* true if the shift key is down */
{
    previous_shift = shifted;

    if (shifted)
    	fted_paste1(x, y, pad_num, mouse_button, shifted);
    else
    	fted_rect1(x, y, pad_num, mouse_button, shifted);
}