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tools_interactive_paint.c
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#if defined(__GNUC__)
#ident "University of Edinburgh $Id$"
#else
static char _tools_interactive_paint_c[] = "University of Edinburgh $Id$";
#endif
/*!
* \file tools_interactive_paint.c
* \author Richard Baldock
* \date April 2009
* \version $Id$
* \par
* Address:
* MRC Human Genetics Unit,
* MRC Institute of Genetics and Molecular Medicine,
* University of Edinburgh,
* Western General Hospital,
* Edinburgh, EH4 2XU, UK.
* \par
* Copyright (C), [2012],
* The University Court of the University of Edinburgh,
* Old College, Edinburgh, UK.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be
* useful but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
* \ingroup MAPaint
* \brief
*/
#include <stdio.h>
#include <stdlib.h>
#include <MAPaint.h>
extern WlzPolygonDomain *HGU_XGetPolyDomain(Display *dpy,
Window win,
int mode,
HGU_XInteractCallbacks *callbacks,
WlzPolygonDomain *start);
#define stipple_width 8
#define stipple_height 8
/*static unsigned char stipple_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};*/
static void thresh_conn_cb(Widget w,
XtPointer client_data,
XtPointer call_data);
static void paint_shape_cb(Widget w,
XtPointer client_data,
XtPointer call_data);
static void paint_border_cb(Widget w,
XtPointer client_data,
XtPointer call_data);
static void paint_size_cb(Widget w,
XtPointer client_data,
XtPointer call_data);
static void draw_cursor_cb(Widget w,
XtPointer client_data,
XtPointer call_data);
static MenuItem thresh_conn_items[] = { /* threshold connectivity items */
{"4_neighbour", &xmPushButtonGadgetClass, 0, NULL, NULL, False,
thresh_conn_cb, (XtPointer) WLZ_4_CONNECTED,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{"8_neighbour", &xmPushButtonGadgetClass, 0, NULL, NULL, True,
thresh_conn_cb, (XtPointer) WLZ_8_CONNECTED,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{NULL},
};
static MenuItem paint_shape_items[] = { /* paint shape items */
{"Circle", &xmPushButtonGadgetClass, 0, NULL, NULL, True,
paint_shape_cb, (XtPointer) HGU_XBLOBTYPE_CIRCLE,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{"Square", &xmPushButtonGadgetClass, 0, NULL, NULL, False,
paint_shape_cb, (XtPointer) HGU_XBLOBTYPE_SQUARE,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{NULL},
};
static MenuItem draw_cursor_items[] = { /* draw cursor items */
{"Dot", &xmPushButtonGadgetClass, 0, NULL, NULL, True,
draw_cursor_cb, (XtPointer) HGU_XCURSOR_POINT,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{"Sights", &xmPushButtonGadgetClass, 0, NULL, NULL, False,
draw_cursor_cb, (XtPointer) HGU_XCURSOR_CROSS,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{"Arrow", &xmPushButtonGadgetClass, 0, NULL, NULL, False,
draw_cursor_cb, (XtPointer) HGU_XCURSOR_POINTER,
myHGU_XmHelpStandardCb, "",
XmTEAR_OFF_DISABLED, False, False, NULL},
{NULL},
};
static XtResource paintCursorRes[] = {
{"cursorType", "CursorType", XtRString, sizeof(String),
0, XtRString, "Sights"}
};
static Widget thresh_slider, draw_paint_controls, paint_blob_slider;
static WlzConnectType thresh_connectivity_type = WLZ_4_CONNECTED;
static int thresh_range_size = 5;
static double thresh_smooth_size = 3.0;
static int paint_blob_size = 6;
static int paint_blob_border = 0;
static HGU_XBlobType paint_blob_type = HGU_XBLOBTYPE_CIRCLE;
static HGU_XCursorType draw_cursor_type = HGU_XCURSOR_POINT;
static HGU_XInteractCallbacks paint_callbacks;
static WlzObject *cursorObj=NULL;
static Cursor cursor;
static void setThreshRangeCb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
Widget slider=w;
while( strcmp(XtName(slider), "range") ){
if( (slider = XtParent(slider)) == NULL )
return;
}
thresh_range_size = (int) HGU_XmGetSliderValue( slider );
return;
}
static void setThreshSmoothWidthCb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
Widget slider=w;
while( strcmp(XtName(slider), "gaussian_width") ){
if( (slider = XtParent(slider)) == NULL )
return;
}
thresh_smooth_size = (double) HGU_XmGetSliderValue( slider );
return;
}
static void setBlobCursor(
Display *dpy,
Window win,
HGU_XBlobType type,
int radius,
int border)
{
WlzDomain cursorDom;
WlzValues cursorVals;
WlzErrorNum errNum=WLZ_ERR_NONE;
/* clear the object cursor object */
if( cursorObj ){
WlzFreeObj(cursorObj);
cursorObj=NULL;
XFreeCursor(dpy, cursor);
}
/* unset the old cursor */
XUndefineCursor(dpy, win);
/* make an object to define the cursor */
switch( type ){
case HGU_XBLOBTYPE_CIRCLE:
cursorObj = WlzMakeCircleObject((double) radius + 0.3, 0.0, 0.0, &errNum);
break;
case HGU_XBLOBTYPE_SQUARE:
if((cursorDom.i = WlzMakeIntervalDomain(WLZ_INTERVALDOMAIN_RECT,
-radius, radius, -radius, radius,
&errNum))){
cursorVals.core = NULL;
cursorObj = WlzMakeMain(WLZ_2D_DOMAINOBJ, cursorDom, cursorVals,
NULL, NULL, NULL);
}
break;
default:
break;
}
/* set the new cursor */
if( errNum == WLZ_ERR_NONE ){
cursor = HGU_XCreateObjectCursor(dpy, win, cursorObj, border);
XDefineCursor(dpy, win, cursor);
}
else {
MAPaintReportWlzError(globals.topl, "setBlobCursor", errNum);
}
return;
}
void thresh_conn_cb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
thresh_connectivity_type = (WlzConnectType) client_data;
return;
}
void draw_cursor_cb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
draw_cursor_type = (HGU_XCursorType) client_data;
/* set the cursor if a paint_key registered */
if((paint_key) &&
(globals.currentPaintAction == MAPAINT_DRAW_2D) ){
HGU_XSetCursor(XtDisplay(paint_key->canvas),
XtWindow(paint_key->canvas), draw_cursor_type);
}
return;
}
void paint_shape_cb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
paint_blob_type = (HGU_XBlobType) client_data;
/* set the cursor if a paint_key registered */
if((paint_key) &&
(globals.currentPaintAction == MAPAINT_PAINT_BALL_2D) ){
/* set the paint-ball cursor */
setBlobCursor(XtDisplay(paint_key->canvas),
XtWindow(paint_key->canvas),
paint_blob_type, paint_blob_size, paint_blob_border);
}
return;
}
void paint_border_cb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
XmToggleButtonCallbackStruct *cbs =
(XmToggleButtonCallbackStruct *) call_data;
paint_blob_border = cbs->set;
/* set the cursor if a paint_key registered */
if((paint_key) &&
(globals.currentPaintAction == MAPAINT_PAINT_BALL_2D) ){
/* set the paint-ball cursor */
setBlobCursor(XtDisplay(paint_key->canvas),
XtWindow(paint_key->canvas),
paint_blob_type, paint_blob_size, paint_blob_border);
}
return;
}
void paint_size_cb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
Widget slider = w;
while( strcmp(XtName(slider), "blob_size") ){
if( (slider = XtParent(slider)) == NULL )
return;
}
paint_blob_size = (int) HGU_XmGetSliderValue( slider );
/* set the cursor if a paint_key registered */
if((paint_key) &&
(globals.currentPaintAction == MAPAINT_PAINT_BALL_2D) ){
setBlobCursor(XtDisplay(paint_key->canvas),
XtWindow(paint_key->canvas),
paint_blob_type, paint_blob_size, paint_blob_border);
}
return;
}
/* tool menu manipulation procedure to mimic accelerators from a
painting view window */
void selectNextPaintCursor(int downFlag)
{
int currIndex, newIndex, numCursors;
Widget button, option_menu;
XmPushButtonCallbackStruct cbs;
String strBuf;
/* get the menu and set/unset the toggles and reset the
selected widget ID */
if( (option_menu =
XtNameToWidget(globals.topl,
"*tool_control_dialog*paint_draw_form1.cursor"))
== NULL ){
return;
}
/* get the current selection */
XtVaGetValues(option_menu, XmNmenuHistory, &button, NULL);
/* find the current index and calculate the new */
numCursors = 0;
currIndex = 0;
while( draw_cursor_items[numCursors].name ){
if(button &&
!strcmp(draw_cursor_items[numCursors].name, XtName(button)) ){
currIndex = numCursors;
}
numCursors++;
}
if( downFlag ){
newIndex = (numCursors + currIndex - 1) % numCursors;
}
else {
newIndex = (currIndex + 1) % numCursors;
}
/* set the new */
strBuf = (String) AlcMalloc(strlen(draw_cursor_items[newIndex].name)
+ 4);
sprintf(strBuf, "*%s", draw_cursor_items[newIndex].name);
button = XtNameToWidget(option_menu, strBuf);
/* set the menu history */
XtVaSetValues(option_menu, XmNmenuHistory, button, NULL);
/* call the callbacks */
cbs.reason = XmCR_ACTIVATE;
cbs.event = NULL;
cbs.click_count = 0;
XtCallCallbacks(button, XmNactivateCallback, &cbs);
return;
}
void MAPaintDraw2DInit(
ThreeDViewStruct *view_struct)
{
/* initialise the callbacks */
paint_callbacks.type = 0;
paint_callbacks.window_func = NULL;
paint_callbacks.window_data = NULL;
paint_callbacks.non_window_func = (HGU_XInteractCallback)
InteractDispatchEvent;
paint_callbacks.non_window_data = NULL;
paint_callbacks.help_func = (HGU_XInteractCallback) InteractHelpCb;
paint_callbacks.help_data = "Paint 3D - HGU_XGetDomain Help";
/* set the cursor */
HGU_XSetCursor(XtDisplay(view_struct->canvas),
XtWindow(view_struct->canvas), draw_cursor_type);
return;
}
void MAPaintDraw2DQuit(
ThreeDViewStruct *view_struct)
{
/* unset the cursor */
XUndefineCursor(XtDisplay(view_struct->canvas),
XtWindow(view_struct->canvas));
return;
}
void MAPaintDraw2DCb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
ThreeDViewStruct *view_struct = (ThreeDViewStruct *) client_data;
WlzThreeDViewStruct *wlzViewStr= view_struct->wlzViewStr;
XmAnyCallbackStruct *cbs = (XmAnyCallbackStruct *) call_data;
DomainSelection currDomain;
int delFlag;
WlzObject *obj, *obj1;
WlzPolygonDomain *poly, *startPoly;
WlzFVertex2 fpVtx, *fpVtxP;
WlzErrorNum errNum=WLZ_ERR_NONE;
/* when left button pressed, get the polyline and install
the new domain either adding to or subtracting from the
current domain. Take account of dominance and reset and
redisplay the painted object */
switch( cbs->event->type ){
case ButtonPress:
switch( cbs->event->xbutton.button ){
case Button1:
case Button2:
/* do nothing if shift pressed - magnify option */
if( cbs->event->xbutton.state & ButtonStateIgnoreMask ){
break;
}
/* save the current domain selection and meta button state */
currDomain = globals.current_domain;
delFlag = ((cbs->event->xbutton.state & Mod1Mask) ||
(cbs->event->xbutton.button == Button2));
/* get the polyline, rescale as required */
fpVtx.vtX = cbs->event->xbutton.x;
fpVtx.vtY = cbs->event->xbutton.y;
fpVtxP = &fpVtx;
startPoly = WlzAssignPolygonDomain(
WlzMakePolygonDomain(WLZ_POLYGON_FLOAT, 1, (WlzIVertex2 *) fpVtxP,
1, 1, NULL), NULL);
globals.paint_action_quit_flag = 0;
poly = HGU_XGetPolyDomain(XtDisplay(view_struct->canvas),
XtWindow(view_struct->canvas),
0, &paint_callbacks, startPoly);
WlzFreePolyDmn(startPoly);
/* define the new domain */
if( poly ){
/* rescale and shift the object here */
if((obj = WlzPolyToObj(poly, WLZ_SIMPLE_FILL, &errNum))){
WlzFreePolyDmn(poly);
if( wlzViewStr->scale > 0.95 ){
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(wlzViewStr->scale), 0, &errNum);
}
else {
float invScale = 1.0 / wlzViewStr->scale;
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(invScale), 1, &errNum);
}
WlzFreeObj(obj);
if( obj1 ){
obj = WlzShiftObject(obj1,
view_struct->painted_object->domain.i->kol1,
view_struct->painted_object->domain.i->line1,
0, &errNum);
WlzFreeObj(obj1);
}
}
if( errNum != WLZ_ERR_NONE ){
break;
}
}
else {
obj = NULL;
}
/* push the domains for undo
reset the painted object and redisplay */
if( obj ){
pushUndoDomains(view_struct);
setDomainIncrement(obj, view_struct, currDomain, delFlag);
WlzFreeObj( obj );
}
break;
default:
break;
}
break;
case ButtonRelease:
break;
case MotionNotify:
break;
case KeyPress:
switch( XLookupKeysym(&(cbs->event->xkey), 0) ){
case XK_Right:
case XK_KP_Right:
case XK_f:
/* if <alt> or <alt gr> pressed then change tool option */
if( cbs->event->xkey.state&(Mod1Mask|Mod2Mask) ){
selectNextPaintCursor(0);
}
break;
case XK_Up:
case XK_p:
break;
case XK_Left:
case XK_KP_Left:
case XK_b:
/* if <alt> or <alt gr> pressed then change tool option */
if( cbs->event->xkey.state&(Mod1Mask|Mod2Mask) ){
selectNextPaintCursor(1);
}
break;
case XK_Down:
case XK_n:
break;
}
break;
default:
break;
}
if( errNum != WLZ_ERR_NONE ){
MAPaintReportWlzError(globals.topl, "MAPaintDraw2DCb", errNum);
}
return;
}
void selectNextPaintBallSize(int downFlag)
{
float currVal, minVal, maxVal;
Widget slider;
/* get the slider */
if( (slider =
XtNameToWidget(globals.topl,
"*tool_control_dialog*paint_draw_form1.blob_size"))
== NULL ){
return;
}
/* get current val and val range */
currVal = HGU_XmGetSliderValue(slider);
HGU_XmGetSliderRange(slider, &minVal, &maxVal);
/* calculate next value */
if( downFlag ){
currVal = (currVal <= minVal) ? minVal : currVal - 1.0;
}
else {
currVal = (currVal >= maxVal) ? maxVal : currVal + 1.0;
}
HGU_XmSetSliderValue(slider, currVal);
/* call the callbacks */
paint_size_cb(slider, NULL, NULL);
return;
}
void MAPaintPaintBall2DInit(
ThreeDViewStruct *view_struct)
{
/* set the cursor */
setBlobCursor(XtDisplay(view_struct->canvas),
XtWindow(view_struct->canvas),
paint_blob_type, paint_blob_size, paint_blob_border);
return;
}
void MAPaintPaintBall2DQuit(
ThreeDViewStruct *view_struct)
{
/* unset the cursor */
XUndefineCursor(XtDisplay(view_struct->canvas),
XtWindow(view_struct->canvas));
/* just in case */
view_struct->viewLockedFlag = 0;
return;
}
static int paintBallDelFlag=0;
static DomainSelection paintBallCurrDomain;
static int paintBallTrigger=0;
void MAPaintPaintBall2DCb(
Widget w,
XtPointer client_data,
XtPointer call_data)
{
ThreeDViewStruct *view_struct = (ThreeDViewStruct *) client_data;
WlzThreeDViewStruct *wlzViewStr= view_struct->wlzViewStr;
XmAnyCallbackStruct *cbs = (XmAnyCallbackStruct *) call_data;
int delX, delY;
WlzObject *obj, *obj1;
WlzErrorNum errNum=WLZ_ERR_NONE;
/* */
switch( cbs->event->type ){
case ButtonPress:
switch( cbs->event->xbutton.button ){
case Button1:
case Button2:
/* do nothing if shift pressed - magnify option */
if( cbs->event->xbutton.state & ButtonStateIgnoreMask ){
paintBallTrigger = 0;
break;
}
/* save the current domain and delete choice */
paintBallCurrDomain = globals.current_domain;
paintBallDelFlag = ((cbs->event->xbutton.state & Mod1Mask) ||
(cbs->event->xbutton.button == Button2));
paintBallTrigger = 1;
view_struct->viewLockedFlag = 1;
/* push the domains for undo */
pushUndoDomains(view_struct);
/* use the cursor object to increment the domain */
delX = (int) cbs->event->xbutton.x - 1;
delY = (int) cbs->event->xbutton.y - 1;
if((obj = WlzAssignObject(WlzShiftObject(cursorObj, delX, delY,
0, &errNum), NULL))){
if( wlzViewStr->scale > 0.95 ){
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(wlzViewStr->scale), 0, &errNum);
}
else {
float invScale = 1.0 / wlzViewStr->scale;
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(invScale), 1, &errNum);
}
obj1 = WlzAssignObject(obj1, NULL);
WlzFreeObj(obj);
if( obj1 ){
delX = wlzViewStr->minvals.vtX;
delY = wlzViewStr->minvals.vtY;
obj = WlzAssignObject(WlzShiftObject(obj1, delX, delY,
0, &errNum), NULL);
WlzFreeObj(obj1);
}
else {
obj = NULL;
}
}
/* reset the painted object and redisplay */
if( obj ){
setDomainIncrement(obj, view_struct, paintBallCurrDomain,
paintBallDelFlag);
WlzFreeObj( obj );
}
break;
default:
break;
}
break;
case ButtonRelease:
switch( cbs->event->xbutton.button ){
case Button1:
case Button2:
paintBallTrigger = 0;
view_struct->viewLockedFlag = 0;
break;
default:
break;
}
break;
case MotionNotify:
/* use the cursor object to increment the domain
should check that button 1 or button 2 is pressed */
if((paintBallTrigger) &&
(cbs->event->xmotion.state & (Button1Mask|Button2Mask)) ){
delX = (int) cbs->event->xmotion.x - 1;
delY = (int) cbs->event->xmotion.y - 1;
if((obj = WlzAssignObject(WlzShiftObject(cursorObj, delX, delY,
0, &errNum), NULL))){
if( wlzViewStr->scale > 0.95 ){
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(wlzViewStr->scale), 0, &errNum);
}
else {
float invScale = 1.0 / wlzViewStr->scale;
obj1 = WlzIntRescaleObj(obj, WLZ_NINT(invScale), 1, &errNum);
}
obj1 = WlzAssignObject(obj1, NULL);
WlzFreeObj(obj);
if( obj1 ){
delX = wlzViewStr->minvals.vtX;
delY = wlzViewStr->minvals.vtY;
obj = WlzAssignObject(WlzShiftObject(obj1, delX, delY,
0, &errNum), NULL);
WlzFreeObj(obj1);
}
else {
obj = NULL;
}
}
/* reset the painted object and redisplay */
if( obj ){
setDomainIncrement(obj, view_struct, paintBallCurrDomain,
paintBallDelFlag);
WlzFreeObj( obj );
}
}
break;
case KeyPress:
switch( XLookupKeysym(&(cbs->event->xkey), 0) ){
case XK_Right:
case XK_KP_Right:
case XK_f:
/* if <alt> or <alt gr> pressed then change tool option */
if( cbs->event->xkey.state&(Mod1Mask|Mod2Mask) ){
selectNextPaintBallSize(0);
}
break;
case XK_Up:
case XK_p:
break;
case XK_Left:
case XK_KP_Left:
case XK_b:
/* if <alt> or <alt gr> pressed then change tool option */
if( cbs->event->xkey.state&(Mod1Mask|Mod2Mask) ){
selectNextPaintBallSize(1);
}
break;
case XK_Down:
case XK_n:
break;
}
break;
default:
break;
}
if( errNum != WLZ_ERR_NONE ){
MAPaintReportWlzError(globals.topl, "MAPaintPaintBall2DCb", errNum);
}
return;
}
static WlzGreyValueWSpace *threshold_gVWSp=NULL;
static void thresholdCanvasMotionEventHandler(
Widget w,
XtPointer client_data,
XEvent *event,
Boolean *continue_to_dispatch)
{
ThreeDViewStruct *view_struct = (ThreeDViewStruct *) client_data;
WlzThreeDViewStruct *wlzViewStr= view_struct->wlzViewStr;
char g_str[64];
int x, y;
int iVal;
double dVal;
WlzErrorNum errNum=WLZ_ERR_NONE;
/* check if initialised */
if( threshold_gVWSp == NULL ){
/* attempt to reset */
if( view_struct->view_object == NULL ){
WlzObject *tmpObj;
if((tmpObj = WlzGetSectionFromObject(globals.orig_obj,
view_struct->wlzViewStr,
WLZ_INTERPOLATION_NEAREST,
&errNum))){
view_struct->view_object = WlzAssignObject(tmpObj, NULL);
}
else {
MAPaintReportWlzError(globals.topl, "thresholdCanvasMotionEventHandler",
errNum);
return;
}
}
if( (threshold_gVWSp = WlzGreyValueMakeWSp(view_struct->view_object,
&errNum)) == NULL ){
MAPaintReportWlzError(globals.topl, "thresholdCanvasMotionEventHandler",
errNum);
return;
}
}
/* call the canvas input callbacks */
switch( event->type ){
case MotionNotify:
/* get the grey value if a button is not pressed */
if( !(event->xmotion.state & (Button1Mask|Button2Mask)) ){
x = ((int) (event->xmotion.x / wlzViewStr->scale) +
wlzViewStr->minvals.vtX);
y = ((int) (event->xmotion.y / wlzViewStr->scale) +
wlzViewStr->minvals.vtY);
WlzGreyValueGet(threshold_gVWSp, 0, (double) y, (double) x);
}
/* put up the feedback string */
switch( threshold_gVWSp->gType )
{
case WLZ_GREY_INT:
iVal = (int) ((*(threshold_gVWSp->gVal)).inv);
(void) sprintf(&g_str[0], "value: %d, range: (%d, %d)",
iVal, iVal-thresh_range_size,
iVal+thresh_range_size);
break;
case WLZ_GREY_SHORT:
iVal = (int) ((*(threshold_gVWSp->gVal)).shv);
(void) sprintf(&g_str[0], "value: %d, range: (%d, %d)",
iVal, iVal-thresh_range_size,
iVal+thresh_range_size);
break;
case WLZ_GREY_UBYTE:
iVal = (int) ((*(threshold_gVWSp->gVal)).ubv);
(void) sprintf(&g_str[0], "value: %d, range: (%d, %d)",
iVal, WLZ_MAX(iVal-thresh_range_size, 0),
WLZ_MIN(iVal+thresh_range_size, 255));
break;
case WLZ_GREY_FLOAT:
dVal = (double) ((*(threshold_gVWSp->gVal)).flv);
(void) sprintf(&g_str[0], "value: %g, range: (%g, %g)",
dVal, dVal-thresh_range_size,
dVal+thresh_range_size);
break;
case WLZ_GREY_DOUBLE:
dVal = (double) ((*(threshold_gVWSp->gVal)).dbv);
(void) sprintf(&g_str[0], "value: %g, range: (%g, %g)",
dVal, dVal-thresh_range_size,
dVal+thresh_range_size);
break;
default:
break;
}
XtVaSetValues(view_struct->text, XmNvalue, g_str, NULL);
break;
default:
break;
}
return;
}
void changeThreshRange(int downFlag)
{
float currVal, minVal, maxVal;
Widget slider;
/* get the slider */
if( (slider =
XtNameToWidget(globals.topl,
"*tool_control_dialog*threshold_form1.range"))
== NULL ){
return;
}
/* get current val and val range */
currVal = HGU_XmGetSliderValue(slider);
HGU_XmGetSliderRange(slider, &minVal, &maxVal);
/* calculate next value */
if( downFlag ){
currVal = (currVal <= minVal) ? minVal : currVal - 1.0;
}
else {
currVal = (currVal >= maxVal) ? maxVal : currVal + 1.0;
}
HGU_XmSetSliderValue(slider, currVal);
/* call the callbacks */
setThreshRangeCb(slider, NULL, NULL);
return;
}
void MAPaintThreshold2DInit(
ThreeDViewStruct *view_struct)
{
WlzErrorNum errNum=WLZ_ERR_NONE;
/* make sure the view object is present and initialise the
grey-value workspace */
if( view_struct->view_object == NULL ){
WlzObject *tmpObj;
if((tmpObj = WlzGetSectionFromObject(globals.orig_obj,
view_struct->wlzViewStr,
WLZ_INTERPOLATION_NEAREST, &errNum))){
view_struct->view_object = WlzAssignObject(tmpObj, NULL);
}
else {
MAPaintReportWlzError(globals.topl, "MAPaintThreshold2DInit", errNum);
return;
}
}
if((threshold_gVWSp = WlzGreyValueMakeWSp(view_struct->view_object,
&errNum))){
/* set an event handler to display the current grey-value */
XtAddEventHandler(view_struct->canvas, PointerMotionMask, False,
thresholdCanvasMotionEventHandler, view_struct);
}
else {
MAPaintReportWlzError(globals.topl, "MAPaintThreshold2DInit", errNum);
}
return;
}
void MAPaintThreshold2DQuit(
ThreeDViewStruct *view_struct)
{
if( threshold_gVWSp ){
/* remove the event handler */
XtRemoveEventHandler(view_struct->canvas, PointerMotionMask, False,
thresholdCanvasMotionEventHandler, view_struct);
/* clear the grey-value workspace */
WlzGreyValueFreeWSp(threshold_gVWSp);
threshold_gVWSp = NULL;
}
view_struct->viewLockedFlag = 0;
return;
}
static WlzObject *get_thresh_obj(
WlzObject *ref_obj,
int x,
int y,
int thresh_up,
int thresh_down)
{
WlzObject *obj1, *obj2=NULL, **obj_list;
WlzPixelV threshV;
WlzGreyType gtype;
WlzGreyValueWSpace *gVWSp = NULL;
int i, num_obj;
WlzErrorNum errNum=WLZ_ERR_NONE;
/* get the selected grey-value */
if( ref_obj == NULL ){
return NULL;
}
gtype = WlzGreyTableTypeToGreyType(ref_obj->values.core->type, &errNum);
if((errNum == WLZ_ERR_NONE) &&
(gVWSp = WlzGreyValueMakeWSp(ref_obj, &errNum))){
threshV.type = WLZ_GREY_INT;
WlzGreyValueGet(gVWSp, 0, (double) y, (double) x);
switch(gtype)
{
case WLZ_GREY_INT:
threshV.v.inv = (int) ((*(gVWSp->gVal)).inv);
break;
case WLZ_GREY_SHORT:
threshV.v.inv = (int) ((*(gVWSp->gVal)).shv);
break;
case WLZ_GREY_UBYTE:
threshV.v.inv = (int) ((*(gVWSp->gVal)).ubv);
break;
case WLZ_GREY_FLOAT:
threshV.v.inv = (int) ((*(gVWSp->gVal)).flv);
break;
case WLZ_GREY_DOUBLE:
threshV.v.inv = (int) ((*(gVWSp->gVal)).dbv);
break;
default:
break;
}
WlzGreyValueFreeWSp(gVWSp);
}
/* threshold within the required range */
if( errNum == WLZ_ERR_NONE ){
threshV.v.inv -= thresh_down;
if(((obj1 = WlzThreshold(ref_obj, threshV, WLZ_THRESH_HIGH,
&errNum)) == NULL) || (obj1->type == WLZ_EMPTY_OBJ))
{
if( errNum != WLZ_ERR_NONE ){