void Fl_Table_Copy::damage_zone(int r1, int c1, int r2, int c2, int r3, int c3) {
int R1 = r1, C1 = c1;
int R2 = r2, C2 = c2;
if (r1 > R2) R2 = r1;
if (r2 < R1) R1 = r2;
if (r3 > R2) R2 = r3;
if (r3 < R1) R1 = r3;
if (c1 > C2) C2 = c1;
if (c2 < C1) C1 = c2;
if (c3 > C2) C2 = c3;
if (c3 < C1) C1 = c3;
if (R1 < 0) {
if (R2 < 0) return;
R1 = 0;
}
if (C1 < 0) {
if (C2 < 0) return;
C1 = 0;
}
if (R1 < toprow) R1 = toprow;
if (R2 > botrow) R2 = botrow;
if (C1 < leftcol) C1 = leftcol;
if (C2 > rightcol) C2 = rightcol;
redraw_range(R1, R2, C1, C2);
}
/*
* Redraw a ColorBar window.
* Input: cb - the ColorBar object
*/
void LUI_ColorBarRedraw( LUI_COLORBAR *cb )
{
Window win, root;
int x, y;
unsigned int width, height, bw, depth;
win = cb->window;
redraw_range( cb, 0, cb->table_size-1 );
redraw_marker( cb );
LUI_DrawFrame( win, 1, 1, cb->width-2, cb->height-2, cb->framewidth-1, 1 );
XDrawRectangle( LUI_Display, win, LUI_GC_black,
0, 0, cb->width-1, cb->height-1 );
}
/*
* Given an XEvent, process it if it pertains to a ColorBar, else do
* nothing with it.
* Input: event - the X event
* Output: whichcb - which colorbar this event pertained to.
* Return: 1 - if color table was changed.
* 2 - if reset key was pressed
* 3 - if <shift>+reset key was pressed
* 0 - if no change
*/
static int colorbar_process( LUI_COLORBAR *cb, XEvent *event )
{
static int p1 = 0, p2 = 0, p3 = 0, p4 = 0; /* red, green, blue, alpha */
static int pentry;
int i, modify, entry, result;
static int move_marker;
result = modify = 0;
if (event->type==KeyPress) {
char keybuf[50];
KeySym key;
XComposeStatus compose;
int count;
count = XLookupString( &event->xkey, keybuf, 50, &key, &compose );
if (count==1) {
if (keybuf[0]=='r') {
/* Reset RGB */
cb->params[DRAWFLAG] = 0.0;
result = LUI_RGB_RESET;
}
else if (keybuf[0]=='R') {
/* Reset alpha */
result = LUI_ALPHA_RESET;
cb->params[DRAWFLAG] = 0.0;
}
else if (keybuf[0]=='c' || keybuf[0]=='C') {
/* Copy current colors to clipboard */
copy_colors( cb );
}
else if (keybuf[0]=='p' || keybuf[0]=='P') {
/* Paste clipboard colors to current color widget */
paste_colors( cb );
LUI_ColorBarRedraw( cb );
result = LUI_RGB_CHANGE | LUI_ALPHA_CHANGE;
cb->params[DRAWFLAG] = 0.0;
result = LUI_RGB_CHANGE | LUI_ALPHA_CHANGE;
}
/* WLH 7-18-96 */
else if (keybuf[0]=='s' || keybuf[0]=='S') {
/* save colors to a file */
save_colors( cb );
}
else if (keybuf[0]=='l' || keybuf[0]=='L') {
/* load colors from a file */
load_colors( cb );
LUI_ColorBarRedraw( cb );
return 1;
}
else {
/* if unused key, toggle help display */
cb->helpflag = !cb->helpflag;
LUI_ColorBarRedraw( cb );
}
}
else if (key == XK_Left) {
/* rotate left */
cb->params[BIAS] -= 0.03/cb->params[CURVE];
result = LUI_RGB_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
else if (key == XK_Right) {
/* rotate right */
cb->params[BIAS] += 0.03/cb->params[CURVE];
result = LUI_RGB_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
else if (key == XK_Up) {
/* expand color map */
if (event->xkey.state & ANY_MODIFIER) {
cb->params[ALPHAPOW] -= 0.1;
if (cb->params[ALPHAPOW]<0.0)
cb->params[ALPHAPOW] = 0.0;
result = LUI_ALPHA_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
else {
cb->params[CURVE] -= 0.1;
result = LUI_RGB_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
}
else if (key == XK_Down) {
/* compress color map */
if (event->xkey.state & ANY_MODIFIER) {
cb->params[ALPHAPOW] += 0.1;
result = LUI_ALPHA_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
else {
cb->params[CURVE] += 0.1;
result = LUI_RGB_SHAPE;
cb->params[DRAWFLAG] = 0.0;
}
}
}
else if (event->type==Expose && event->xexpose.count==0) {
LUI_ColorBarRedraw( cb );
result = 0;
}
else if (event->type==ConfigureNotify) {
/* MJK 4.15.99 */
LUI_ColorBarSetSize( cb, event->xconfigure.width, event->xconfigure.height );
result = 0;
}
else if (event->type==ButtonPress ) {
if (event->xbutton.y<cb->wedge_y) {
/* change color function */
move_marker = 0;
}
else {
/* change marker position */
move_marker = 1;
}
/* determine which curve to modify */
if (event->xbutton.state&ANY_MODIFIER) {
p4 = 1;
}
else {
if (event->xbutton.button==Button1) p1 = 1;
if (event->xbutton.button==Button2) p2 = 1;
if (event->xbutton.button==Button3) p3 = 1;
}
pentry = x_to_index( cb, event->xbutton.x );
modify = 1;
}
else if (event->type==ButtonRelease) {
if (p1 || p2 || p3) {
result = LUI_RGB_CHANGE;
}
else {
result = LUI_ALPHA_CHANGE;
}
if (event->xbutton.button==Button1) p1 = 0;
if (event->xbutton.button==Button2) p2 = 0;
if (event->xbutton.button==Button3) p3 = 0;
p4 = 0;
}
else if (event->type==MotionNotify) {
/* Flush extra MotionNotify events */
while (QLength(LUI_Display)>0) {
XEvent next;
XPeekEvent(LUI_Display, &next);
if (next.type!=MotionNotify)
break;
XNextEvent(LUI_Display, event);
}
modify = 1;
}
/* Modify one or more of the color curves */
if (modify && (p1 || p2 || p3 || p4)) {
/* calculate which entry in color table to change */
entry = x_to_index( cb, event->xbutton.x );
/* update */
if (move_marker) {
/* changing marker position */
cb->markerpos = entry;
redraw_marker( cb );
}
else {
/* changing color graph */
int a, b, value;
value = y_to_intensity( cb, event->xbutton.y );
if (pentry<=entry) {
a = pentry;
b = entry;
}
else {
a = entry;
b = pentry;
}
/* update entries from 'pentry' to 'entry' */
for (i=a; i<=b; i++) {
int red, green, blue, alpha;
red = UNPACK_RED(cb->table[i]);
green = UNPACK_GREEN(cb->table[i]);
blue = UNPACK_BLUE(cb->table[i]);
alpha = UNPACK_ALPHA(cb->table[i]);
if (p1) {
/* modify red */
red = value;
}
if (p2) {
/* modify green */
green = value;
}
if (p3) {
/* modify blue */
blue = value;
}
if (p4) {
/* modify alpha */
alpha = value;
}
/* change the color table entry */
cb->table[i] = PACK_COLOR(red,green,blue,alpha);
} /* for */
/* redraw the color curves */
if (pentry<entry)
redraw_range( cb, pentry-1, entry+1 );
else
redraw_range( cb, entry-1, pentry+1 );
pentry = entry;
if (p4) {
/* update min,max alpha values */
cb->minalpha = 256;
cb->maxalpha = 0;
for (i=0;i<cb->table_size;i++) {
int a = UNPACK_ALPHA( cb->table[i] );
if (a<cb->minalpha) cb->minalpha = a;
if (a>cb->maxalpha) cb->maxalpha = a;
}
}
if (p4) {
result = LUI_ALPHA_MODIFY;
/*
result = LUI_ALPHA_CHANGE;
*/
}
else {
result = LUI_RGB_MODIFY;
/*
result = LUI_RGB_CHANGE;
*/
}
cb->params[DRAWFLAG] = 1.0;
}
} /*modify*/
if (result!=0 && cb->callback) {
(*cb->callback)(cb, result);
}
return result;
}
