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/* sunresizebr - resize brush dialog for SunView */
/* XLISP-STAT 2.1 Copyright (c) 1990, by Luke Tierney */
/* Additions to Xlisp 2.1, Copyright (c) 1989 by David Michael Betz */
/* You may give out copies of this software; for conditions see the */
/* file COPYING included with this distribution. */
#include "xlisp.h"
#include "xlstat.h"
#include "xlgraph.h"
extern Canvas StGWCanvas();
typedef struct {
int h, v;
} Point;
static SetRect(r, a, b, c, d)
Rect *r;
int a, b, c, d;
{
r->r_left = a;
r->r_top = b;
r->r_width = c - a;
r->r_height = d - b;
}
static Rect TrackIViewDrag(w, pt)
IVIEW_WINDOW w;
Point pt;
{
int down;
Rect r;
Event myEvent, *event;
int x, y;
event = &myEvent;
SetRect(&r, pt.h, pt.v, pt.h, pt.v);
XorRect(w, r);
do {
window_read_event(StGWCanvas(w), event);
canvas_event(StGWCanvas(w), event);
down = ! event_is_up(event);
XorRect(w, r);
x = event_x(event);
y = event_y(event);
SetRect(&r, pt.h, pt.v, x, y);
XorRect(w, r);
} while (down);
XorRect(w, r);
if (r.r_height < 0) {
r.r_height = -r.r_height;
r.r_top = r.r_top - r.r_height;
}
if (r.r_width < 0) {
r.r_width = -r.r_width;
r.r_left = r.r_left - r.r_width;
}
return(r);
}
static int resizing_brush;
static resize_proc(win, event, arg)
Window win;
Event *event;
caddr_t arg;
{
static int down = FALSE;
if (event_is_down(event)) {
if (event_id(event) == MS_MIDDLE) resizing_brush = TRUE;
window_return(0);
}
}
static Rect GetNewIViewBrush(w)
IVIEW_WINDOW w;
{
Frame message_frame;
Panel panel;
Panel_item message_item;
int left, top, width, height;
Rect *mr, r;
Point mousePt;
Event myEvent, *event;
event = &myEvent;
StSunReleaseButton();
message_frame = window_create(NULL, FRAME, FRAME_SHOW_LABEL, FALSE, 0);
panel = window_create(message_frame, PANEL, WIN_EVENT_PROC, resize_proc, 0);
message_item = panel_create_item(panel, PANEL_MESSAGE, PANEL_LABEL_STRING,
"Click middle button and drag", 0);
window_fit(panel);
window_fit(message_frame);
/* center the message_frame frame on the screen */
mr = (Rect *) window_get(message_frame, WIN_SCREEN_RECT);
width = (int) window_get(message_frame, WIN_WIDTH);
height = (int) window_get(message_frame, WIN_HEIGHT);
left = (mr->r_width - width) / 2;
top = (mr->r_height - height) / 2;
if (left < 0) left = 0;
if (top < 0) top = 0;
window_set(message_frame, WIN_X, left, WIN_Y, top, 0);
window_loop(message_frame);
window_set(message_frame, FRAME_NO_CONFIRM, TRUE, 0);
window_destroy(message_frame);
if (resizing_brush) {
window_read_event(StGWCanvas(w), event);
canvas_event(StGWCanvas(w), event);
mousePt.h = event_x(event);
mousePt.v = event_y(event);
return(TrackIViewDrag(w, mousePt));
}
else {
IViewGetBrush(w, &r.r_left, &r.r_top, &r.r_width, &r.r_height);
return (r);
}
}
static XorRect(w, r)
IVIEW_WINDOW w;
Rect r;
{
static struct pr_texture tex, *texp;
Pixwin *pw = canvas_pixwin(StGWCanvas(w));
int op;
tex.pattern = pr_tex_dashed;
texp = &tex;
op = PIX_COLOR(1) | (PIX_SRC ^ PIX_DST);
pw_line(pw, r.r_left, r.r_top, r.r_left + r.r_width, r.r_top,
NULL, texp, op);
pw_line(pw, r.r_left + r.r_width, r.r_top, r.r_left + r.r_width,
r.r_top + r.r_height,
NULL, texp, op);
pw_line(pw, r.r_left + r.r_width, r.r_top + r.r_height,
r.r_left, r.r_top + r.r_height,
NULL, texp, op);
pw_line(pw, r.r_left, r.r_top + r.r_height, r.r_left, r.r_top,
NULL, texp, op);
}
IViewGetNewBrushSize(w, new_width, new_height)
IVIEW_WINDOW w;
int *new_width, *new_height;
{
Rect r;
r = GetNewIViewBrush(w);
if (new_width != NULL) *new_width = r.r_width;
if (new_height != NULL) *new_height = r.r_height;
return(TRUE);
}
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