#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#if defined(ISC) && __STDC__ && !defined(ISC30)
extern double atof(char *);
#endif
#include <X11/IntrinsicP.h>
#include <X11/StringDefs.h>
#include <X11/Xos.h>
#include <X11/Xaw/XawInit.h>
#include "CutPaste.h"
#include "ScaleP.h"
#define myrint(x) floor(x + 0.5)
#define streq(a,b) (strcmp( (a), (b) ) == 0)
#ifndef min
#define min(x, y) ((x) > (y) ? (y) : (x))
#endif
#ifndef max
#define max(x, y) ((x) < (y) ? (y) : (x))
#endif
#if defined(ISC) && __STDC__ && !defined(ISC30)
extern double atof(char *);
#endif
#define DefaultBufferSize 1024
#define DefaultScaleFactor NULL
#define Offset(field) XtOffsetOf(ScaleRec, scale.field)
static XtResource resources[] = {
{XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
Offset(foreground_pixel), XtRString, (XtPointer) XtDefaultForeground},
{XtNgravity, XtCGravity, XtRGravity, sizeof(XtGravity),
Offset(gravity), XtRImmediate, (XtPointer) "ForgetGravity"},
{XtNinternalWidth, XtCWidth, XtRDimension, sizeof(Dimension),
Offset(internal_width), XtRImmediate, (XtPointer) 2},
{XtNinternalHeight, XtCHeight, XtRDimension, sizeof(Dimension),
Offset(internal_height), XtRImmediate, (XtPointer) 2},
{XtNresize, XtCResize, XtRBoolean, sizeof(Boolean),
Offset(resize), XtRImmediate, (XtPointer) True},
{XtNautoscale, XtCAutoscale, XtRBoolean, sizeof(Boolean),
Offset(autoscale), XtRImmediate, (XtPointer) True},
{XtNproportional, XtCProportional, XtRBoolean, sizeof(Boolean),
Offset(proportional), XtRImmediate, (XtPointer) True},
{XtNscaleX, XtCScaleFactor, XtRString, sizeof(String),
Offset(scale_x_str), XtRImmediate, (XtPointer) DefaultScaleFactor},
{XtNscaleY, XtCScaleFactor, XtRString, sizeof(String),
Offset(scale_y_str), XtRImmediate, (XtPointer) DefaultScaleFactor},
{XtNaspectRatio, XtCAspectRatio, XtRString, sizeof(String),
Offset(aspect_ratio_str), XtRImmediate, (XtPointer) "1.0"},
{XtNprecision, XtCPrecision, XtRString, sizeof(String),
Offset(precision_str), XtRImmediate, (XtPointer) "0.001"},
{XtNimage, XtCImage, XtRImage, sizeof(XImage*),
Offset(image), XtRImmediate, (XtPointer) NULL},
{XtNpasteBuffer, XtCPasteBuffer, XtRBoolean, sizeof(Boolean),
Offset(paste_buffer), XtRImmediate, (XtPointer) False},
{XtNbufferSize, XtCBufferSize, XtRCardinal, sizeof(Cardinal),
Offset(buffer_size), XtRImmediate, (XtPointer) DefaultBufferSize},
{XtNuserData, XtCuserData, XtRuserData, sizeof(XtPointer),
Offset(userData), XtRImmediate, (XtPointer) NULL},
{ XtNvisual, XtCvisual, XtRVisual, sizeof(Visual*),
Offset(visual), XtRImmediate, CopyFromParent}
};
#undef Offset
static void ClassInitialize ( void );
static void GetGC ( ScaleWidget sw );
static void GetInitialScaleValues ( ScaleWidget sw );
static void GetRectangleBuffer ( ScaleWidget sw, Cardinal buffer_size );
static void Initialize ( Widget request, Widget new, ArgList args,
Cardinal *num_args );
static void BuildTable ( ScaleWidget sw );
static void FlushRectangles ( ScaleWidget sw, Drawable drawable, GC gc );
static void FillRectangle ( ScaleWidget sw, Drawable drawable, GC gc,
Position x, Position y,
Dimension width, Dimension height );
static void ScaleImage ( ScaleWidget sw, Drawable drawable,
Position img_x, Position img_y,
Position dst_x, Position dst_y,
Dimension img_width, Dimension img_height );
static int FindPixel ( ScaleWidget sw, Position x, Position y,
Position *img_x, Position *img_y, Pixel *img_pixel );
static void Redisplay ( Widget w, XEvent *event, Region region );
static void TryResize ( ScaleWidget sw );
static void Precision ( ScaleWidget sw );
static void Proportional ( ScaleWidget sw );
static void GetScaledSize ( ScaleWidget sw );
static void GetScaleValues ( ScaleWidget sw );
static void Unscale ( ScaleWidget sw );
static void Autoscale ( ScaleWidget sw );
static void PositionImage ( ScaleWidget sw );
static void Resize ( Widget w );
static void Realize ( Widget wid, Mask *vmask, XSetWindowAttributes *attr );
static void Destroy ( Widget w );
static Boolean SetValues ( Widget current, Widget request, Widget new,
ArgList args, Cardinal *num_args );
static XtActionsRec actions[] =
{
{"unscale", SWUnscale},
{"autoscale", SWAutoscale},
{"initial-size", SWInitialSize},
{"paste", RequestSelection},
{"cut", GrabSelection}
};
static char translations[] =
"\
<Key>u: unscale()\n\
<Key>a: autoscale()\n\
<Key>i: initial-size()\n\
";
ScaleClassRec scaleClassRec = {
{
(WidgetClass) &simpleClassRec,
"Scale",
sizeof(ScaleRec),
ClassInitialize,
NULL,
FALSE,
Initialize,
NULL,
Realize,
actions,
XtNumber(actions),
resources,
XtNumber(resources),
NULLQUARK,
TRUE,
XtExposeCompressMaximal|
XtExposeGraphicsExposeMerged,
TRUE,
TRUE,
Destroy,
Resize,
Redisplay,
SetValues,
NULL,
XtInheritSetValuesAlmost,
NULL,
NULL,
XtVersion,
NULL,
translations,
XtInheritQueryGeometry,
XtInheritDisplayAccelerator,
NULL
},
{
XtInheritChangeSensitive,
}
};
WidgetClass scaleWidgetClass = (WidgetClass) &scaleClassRec;
static void
ClassInitialize(void)
{
}
static void
GetGC(ScaleWidget sw)
{
XGCValues values;
values.foreground = sw->scale.foreground_pixel;
values.background = sw->core.background_pixel;
values.function = GXcopy;
sw->scale.gc = XtGetGC((Widget) sw,
GCForeground |
GCBackground |
GCFunction,
&values);
}
static void
GetInitialScaleValues(ScaleWidget sw)
{
if (sw->scale.proportional) {
sw->scale.scale_x = sw->scale.scale_y =
((sw->scale.aspect_ratio > 1.0) ?
sw->scale.aspect_ratio : 1.0 / sw->scale.aspect_ratio) *
(sw->scale.precision > 1.0 ?
sw->scale.precision : 1.0);
Proportional(sw);
}
else
sw->scale.scale_x = sw->scale.scale_y = 1.0;
}
static void
GetRectangleBuffer(ScaleWidget sw, Cardinal buffer_size)
{
if (buffer_size == 0) {
buffer_size = DefaultBufferSize;
XtWarning("buffer size has to be a positive number greater than zero");
}
sw->scale.rectangles = (XRectangle *)
XtRealloc((char *) sw->scale.rectangles,
buffer_size * sizeof(XRectangle));
sw->scale.buffer_size = buffer_size;
}
static void
Initialize(Widget request, Widget new, ArgList args, Cardinal *num_args)
{
ScaleWidget new_sw = (ScaleWidget) new;
new_sw->scale.table.x = (Position *) NULL;
new_sw->scale.table.y = (Position *) NULL;
new_sw->scale.table.width = (Dimension *) NULL;
new_sw->scale.table.height = (Dimension *) NULL;
new_sw->scale.nrectangles = 0;
new_sw->scale.rectangles = (XRectangle *) NULL;
GetRectangleBuffer(new_sw, new_sw->scale.buffer_size);
GetGC(new_sw);
if (new_sw->scale.image != NULL) {
if (new_sw->core.width == 0)
new_sw->core.width =
new_sw->scale.image->width + 2 * new_sw->scale.internal_width;
if (new_sw->core.height == 0)
new_sw->core.height =
new_sw->scale.image->height + 2 *new_sw->scale.internal_height;
}
else {
if (new_sw->core.width == 0)
new_sw->core.width = 1 + 2 * new_sw->scale.internal_width;
if (new_sw->core.height == 0)
new_sw->core.height = 1 + 2 * new_sw->scale.internal_height;
new_sw->scale.image = XCreateImage(XtDisplay(new),
DefaultVisual(XtDisplay(new),
DefaultScreen(XtDisplay(new))),
1, XYBitmap, 0,
XtCalloc(1, sizeof(char)),
1, 1, 8, 0);
}
if ((new_sw->scale.aspect_ratio =
atof(new_sw->scale.aspect_ratio_str)) < 0.0) {
new_sw->scale.aspect_ratio = 1.0;
XtWarning("AspectRatio has to be a positive number. (forced to 1.0)");
}
if ((new_sw->scale.precision =
atof(new_sw->scale.precision_str)) < 0.0) {
new_sw->scale.precision = 0.001;
XtWarning("Precision has to be a positive number. (forced to 0.001)");
}
if (new_sw->scale.scale_x_str == DefaultScaleFactor
||
new_sw->scale.scale_y_str == DefaultScaleFactor)
GetInitialScaleValues(new_sw);
else {
if ((new_sw->scale.scale_x =
atof(new_sw->scale.scale_x_str)) < 0.0) {
new_sw->scale.scale_x = 1.0;
XtWarning("ScaleValue has to be a positive number. (forced to 1.0)");
}
if ((new_sw->scale.scale_y =
atof(new_sw->scale.scale_y_str)) < 0.0) {
new_sw->scale.scale_y = 1.0;
XtWarning("ScaleValue has to be a positive number. (forced to 1.0)");
}
}
}
static void
BuildTable(ScaleWidget sw)
{
Position x, y;
XtFree((char *) sw->scale.table.x);
XtFree((char *) sw->scale.table.y);
XtFree((char *) sw->scale.table.width);
XtFree((char *) sw->scale.table.height);
sw->scale.table.x =
(Position *) XtMalloc(sizeof(Position) * sw->scale.image->width);
sw->scale.table.y =
(Position *) XtMalloc(sizeof(Position) * sw->scale.image->height);
sw->scale.table.width =
(Dimension *) XtMalloc(sizeof(Dimension) * sw->scale.image->width);
sw->scale.table.height =
(Dimension *) XtMalloc(sizeof(Dimension) * sw->scale.image->height);
for (x = 0; x < sw->scale.image->width; x++) {
sw->scale.table.x[(int) x] = (Position) myrint(sw->scale.scale_x * x);
sw->scale.table.width[(int) x] = (Dimension)
myrint(sw->scale.scale_x *(x + 1)) - myrint(sw->scale.scale_x * x);
}
for (y = 0; y < sw->scale.image->height; y++) {
sw->scale.table.y[(int) y] = (Position) myrint(sw->scale.scale_y * y);
sw->scale.table.height[(int) y] = (Dimension)
myrint(sw->scale.scale_y *(y + 1)) - myrint(sw->scale.scale_y * y);
}
}
static void
FlushRectangles(ScaleWidget sw, Drawable drawable, GC gc)
{
XFillRectangles(XtDisplay(sw), drawable, gc,
sw->scale.rectangles, sw->scale.nrectangles);
sw->scale.nrectangles = 0;
}
static void
FillRectangle(ScaleWidget sw, Drawable drawable, GC gc,
Position x, Position y, Dimension width, Dimension height)
{
if (sw->scale.nrectangles == sw->scale.buffer_size)
FlushRectangles(sw, drawable, gc);
sw->scale.rectangles[(int) sw->scale.nrectangles].x = x;
sw->scale.rectangles[(int) sw->scale.nrectangles].y = y;
sw->scale.rectangles[(int) sw->scale.nrectangles].width = width;
sw->scale.rectangles[(int) sw->scale.nrectangles].height = height;
++sw->scale.nrectangles;
}
static void
ScaleImage(ScaleWidget sw, Drawable drawable, Position img_x, Position img_y,
Position dst_x, Position dst_y,
Dimension img_width, Dimension img_height)
{
GC gc;
XGCValues gcv;
Position x, y;
Pixel pixel;
img_x = min(max(img_x, 0), (Position) sw->scale.image->width - 1);
img_y = min(max(img_y, 0), (Position) sw->scale.image->height - 1);
img_width =
min(img_width, (Dimension)(sw->scale.image->width - (Dimension)img_x));
img_height =
min(img_height, (Dimension)(sw->scale.image->height - (Dimension)img_y));
if (sw->scale.scale_x == 1.0 && sw->scale.scale_y == 1.0)
XPutImage(XtDisplay(sw), drawable, sw->scale.gc, sw->scale.image,
img_x, img_y, dst_x, dst_y,
img_width, img_height);
else {
dst_x = dst_x - sw->scale.table.x[(int) img_x];
dst_y = dst_y - sw->scale.table.y[(int) img_y];
gc = XCreateGC(XtDisplay(sw), drawable, 0, NULL);
gcv.function = GXcopy;
XChangeGC(XtDisplay(sw), gc, GCFunction, &gcv);
gcv.background = sw->core.background_pixel;
XChangeGC(XtDisplay(sw), gc, GCBackground, &gcv);
gcv.foreground = gcv.background;
XChangeGC(XtDisplay(sw), gc, GCForeground, &gcv);
XFillRectangle(XtDisplay(sw), drawable, gc,
sw->scale.table.x[(int) img_x] + dst_x,
sw->scale.table.y[(int) img_y] + dst_y,
sw->scale.table.x[(int) img_x + img_width - 1] -
sw->scale.table.x[(int) img_x],
sw->scale.table.y[(int) img_y + img_height - 1] -
sw->scale.table.y[(int) img_y]);
if (sw->scale.image->format == XYBitmap) {
for (x = img_x; x < img_x + (Position)img_width; x++)
for (y = img_y; y < img_y + (Position)img_height; y++) {
pixel = XGetPixel(sw->scale.image, x, y);
if (pixel)
FillRectangle(sw, drawable, sw->scale.gc,
sw->scale.table.x[(int) x] + dst_x,
sw->scale.table.y[(int) y] + dst_y,
sw->scale.table.width[(int) x],
sw->scale.table.height[(int) y]);
}
FlushRectangles(sw, drawable, sw->scale.gc);
}
else {
for (x = img_x; x < img_x + (Position)img_width; x++)
for (y = img_y; y < img_y + (Position)img_height; y++) {
pixel = XGetPixel(sw->scale.image, x, y);
if (pixel != gcv.background) {
if (gcv.foreground != pixel) {
gcv.foreground = pixel;
XChangeGC(XtDisplay(sw), gc, GCForeground, &gcv);
}
XFillRectangle(XtDisplay(sw), drawable, gc,
sw->scale.table.x[(int) x] + dst_x,
sw->scale.table.y[(int) y] + dst_y,
sw->scale.table.width[(int) x],
sw->scale.table.height[(int) y]);
}
}
}
XFreeGC(XtDisplay(sw), gc);
}
}
static int
FindPixel(ScaleWidget sw, Position x, Position y,
Position *img_x, Position *img_y, Pixel *img_pixel)
{
if (*img_x < 0 || *img_x >= sw->scale.image->width
||
*img_y < 0 || *img_y >= sw->scale.image->height)
return (-1);
if (sw->scale.table.x[(int) *img_x] >= x) {
--*img_x;
return FindPixel(sw, x, y, img_x, img_y, img_pixel);
}
if (sw->scale.table.x[(int) *img_x] +
(Position)sw->scale.table.width[(int) *img_x] < x) {
++*img_x;
return FindPixel(sw, x, y, img_x, img_y, img_pixel);
}
if (sw->scale.table.y[(int) *img_y] >= y) {
--*img_y;
return FindPixel(sw, x, y, img_x, img_y, img_pixel);
}
if (sw->scale.table.y[(int) *img_y] +
(Position)sw->scale.table.height[(int) *img_y] < y) {
++*img_y;
return FindPixel(sw, x, y, img_x, img_y, img_pixel);
}
*img_pixel = XGetPixel(sw->scale.image, *img_x, *img_y);
return (0);
}
int
SWGetImagePixel(Widget w, Position x, Position y,
Position *img_x, Position *img_y, Pixel *img_pixel)
{
ScaleWidget sw = (ScaleWidget) w;
x -= sw->scale.x;
y -= sw->scale.y;
*img_x = (Position) floor(x / sw->scale.scale_x);
*img_y = (Position) floor(y / sw->scale.scale_y);
return FindPixel(sw, x, y, img_x, img_y, img_pixel);
}
static void
Redisplay(Widget w, XEvent *event, Region region)
{
ScaleWidget sw = (ScaleWidget) w;
Position x, y, img_x, img_y;
Dimension width, height;
if (event->type == Expose) {
if (event->xexpose.x < sw->scale.x) {
x = 0;
width = event->xexpose.width -
(sw->scale.x - event->xexpose.x);
}
else {
x = event->xexpose.x - sw->scale.x;
width = event->xexpose.width;
}
if (event->xexpose.y < sw->scale.y) {
y = 0;
height = event->xexpose.height -
(sw->scale.y - event->xexpose.y);
}
else {
y = event->xexpose.y - sw->scale.y;
height = event->xexpose.height;
}
img_x = min(max((Position) floor((float) x
/ (float) sw->scale.scale_x), 0),
(Position) sw->scale.image->width - 1);
img_y = min(max((Position) floor((float) y
/ (float) sw->scale.scale_y), 0),
(Position) sw->scale.image->height - 1);
if (sw->core.visible) {
ScaleImage(sw, XtWindow(w),
img_x, img_y,
sw->scale.x + sw->scale.table.x[(int) img_x],
sw->scale.y + sw->scale.table.y[(int) img_y],
(Dimension) ceil((float) width
/ sw->scale.scale_x) + 1,
(Dimension) ceil((float) height
/ sw->scale.scale_y) + 1);
}
}
}
static void
TryResize(ScaleWidget sw)
{
Dimension width, height;
XtGeometryResult result;
width = (Dimension)
floor(sw->scale.image->width * sw->scale.scale_x)
+ 2 * sw->scale.internal_width;
height = (Dimension)
floor(sw->scale.image->height * sw->scale.scale_y)
+ 2 * sw->scale.internal_height;
while ((result =
XtMakeResizeRequest((Widget)sw,width,height,&width,&height))
== XtGeometryAlmost);
if (result != XtGeometryNo) {
sw->core.width = width;
sw->core.height = height;
}
}
static void
Precision(ScaleWidget sw)
{
if (sw->scale.scale_x != 1.0)
sw->scale.scale_x = floor(sw->scale.scale_x / sw->scale.precision)
* sw->scale.precision;
if (sw->scale.scale_y != 1.0)
sw->scale.scale_y = floor(sw->scale.scale_y / sw->scale.precision)
* sw->scale.precision;
}
static void
Proportional(ScaleWidget sw)
{
float scale_x, scale_y;
scale_x = sw->scale.scale_y / sw->scale.aspect_ratio;
scale_y = sw->scale.scale_x * sw->scale.aspect_ratio;
if (scale_x <= sw->scale.scale_x && scale_y <= sw->scale.scale_y) {
if (scale_x > scale_y)
sw->scale.scale_x = scale_x;
else
sw->scale.scale_y = scale_y;
}
else if (scale_x <= sw->scale.scale_x)
sw->scale.scale_x = scale_x;
else if (scale_y <= sw->scale.scale_y)
sw->scale.scale_y = scale_y;
else {
float x_ratio, y_ratio;
x_ratio = scale_x / sw->scale.scale_x;
y_ratio = scale_y / sw->scale.scale_y;
if (x_ratio < y_ratio)
sw->scale.scale_y /= x_ratio;
else
sw->scale.scale_x /= y_ratio;
}
if (fabs(sw->scale.scale_x / sw->scale.scale_y * sw->scale.aspect_ratio
- 1.0) > sw->scale.precision)
XtWarning("can not preserve aspect ratio");
}
static void
GetScaledSize(ScaleWidget sw)
{
sw->scale.width = (Dimension)
max(myrint(sw->scale.scale_x * sw->scale.image->width), 1);
sw->scale.height = (Dimension)
max(myrint(sw->scale.scale_y * sw->scale.image->height), 1);
}
static void
GetScaleValues(ScaleWidget sw)
{
sw->scale.scale_x =
(float) max((int)(sw->core.width - 2 * sw->scale.internal_width), 1)
/ (float) sw->scale.image->width;
sw->scale.scale_y =
(float) max((int)(sw->core.height - 2 * sw->scale.internal_height), 1)
/ (float) sw->scale.image->height;
}
static void
Unscale(ScaleWidget sw)
{
sw->scale.scale_x = sw->scale.scale_y = 1.0;
GetScaledSize(sw);
BuildTable(sw);
}
static void
Autoscale(ScaleWidget sw)
{
GetScaleValues(sw);
if (sw->scale.proportional) Proportional(sw);
Precision(sw);
GetScaledSize(sw);
BuildTable(sw);
}
static void
PositionImage(ScaleWidget sw)
{
sw->scale.x = (Position)
(sw->core.width - sw->scale.width) / 2;
sw->scale.y = (Position)
(sw->core.height - sw->scale.height) / 2;
}
static void
Resize(Widget w)
{
ScaleWidget sw = (ScaleWidget) w;
if (sw->scale.autoscale) Autoscale(sw);
PositionImage(sw);
}
static void
Realize(Widget wid, Mask *vmask, XSetWindowAttributes *attr)
{
ScaleWidget sw = (ScaleWidget) wid;
XtCreateWindow(wid, (unsigned int) InputOutput,
(Visual *) sw->scale.visual, *vmask, attr);
}
static void
Destroy(Widget w)
{
ScaleWidget sw = (ScaleWidget) w;
XtFree((char *) sw->scale.table.x);
XtFree((char *) sw->scale.table.y);
XtFree((char *) sw->scale.table.width);
XtFree((char *) sw->scale.table.height);
XtFree((char *) sw->scale.rectangles);
XtReleaseGC(w, sw->scale.gc);
XDestroyImage(sw->scale.image);
}
static Boolean
SetValues(Widget current, Widget request, Widget new,
ArgList args, Cardinal *num_args)
{
ScaleWidget cur_sw = (ScaleWidget) current;
ScaleWidget new_sw = (ScaleWidget) new;
Boolean redisplay = False;
Cardinal i;
for (i = 0; i < *num_args; i++) {
if (streq(XtNbackground, args[i].name)) {
XSetBackground(XtDisplay(new), new_sw->scale.gc,
new_sw->core.background_pixel);
}
if (streq(XtNforeground, args[i].name)) {
XSetForeground(XtDisplay(new), new_sw->scale.gc,
new_sw->scale.foreground_pixel);
}
if (streq(XtNimage, args[i].name)) {
XDestroyImage(cur_sw->scale.image);
if (new_sw->scale.image == NULL)
new_sw->scale.image = XCreateImage(XtDisplay(new),
DefaultVisual(XtDisplay(new),
DefaultScreen(XtDisplay(new))),
1, XYBitmap, 0,
XtCalloc(1, sizeof(char)),
1, 1, 8, 0);
else
new_sw->scale.image =
XSubImage(new_sw->scale.image,
0, 0,
new_sw->scale.image->width,
new_sw->scale.image->height);
if (new_sw->scale.resize)
TryResize(new_sw);
if (new_sw->scale.autoscale)
Autoscale(new_sw);
else {
GetScaledSize(new_sw);
BuildTable(new_sw);
}
PositionImage(new_sw);
redisplay = True;
}
if (streq(XtNuserData, args[i].name))
new_sw->scale.userData = (XtPointer)args[i].value;
if (streq(XtNbufferSize, args[i].name)) {
if (new_sw->scale.buffer_size != cur_sw->scale.buffer_size) {
GetRectangleBuffer(new_sw, new_sw->scale.buffer_size);
}
}
if (streq(XtNaspectRatio, args[i].name)) {
if ((new_sw->scale.aspect_ratio =
atof(new_sw->scale.aspect_ratio_str)) < 0.0) {
new_sw->scale.aspect_ratio = cur_sw->scale.aspect_ratio;
XtWarning("AspectRatio has to be a positive number.");
}
else if (new_sw->scale.aspect_ratio != cur_sw->scale.aspect_ratio){
if (new_sw->scale.proportional) {
Proportional(new_sw);
Precision(new_sw);
GetScaledSize(new_sw);
BuildTable(new_sw);
PositionImage(new_sw);
redisplay = True;
}
}
}
if (streq(XtNproportional, args[i].name)) {
if (new_sw->scale.proportional != cur_sw->scale.proportional) {
if (new_sw->scale.proportional) Proportional(new_sw);
Precision(new_sw);
GetScaledSize(new_sw);
BuildTable(new_sw);
PositionImage(new_sw);
redisplay = True;
}
}
if (streq(XtNscaleX, args[i].name)
||
streq(XtNscaleY, args[i].name)) {
if (new_sw->scale.scale_x_str == DefaultScaleFactor
||
new_sw->scale.scale_y_str == DefaultScaleFactor)
GetInitialScaleValues(new_sw);
else {
if ((new_sw->scale.scale_x =
atof(new_sw->scale.scale_x_str)) < 0.0) {
new_sw->scale.scale_x = cur_sw->scale.scale_x;
XtWarning("ScaleValue has to be a positive number.");
}
if ((new_sw->scale.scale_y =
atof(new_sw->scale.scale_y_str)) < 0.0) {
new_sw->scale.scale_y = cur_sw->scale.scale_y;
XtWarning("ScaleValue has to be a positive number.");
}
}
if (new_sw->scale.scale_x != cur_sw->scale.scale_x
||
new_sw->scale.scale_y != cur_sw->scale.scale_y) {
fprintf(stderr, "================>>%f %f\n",
new_sw->scale.scale_x, new_sw->scale.scale_y);
if (new_sw->scale.proportional) Proportional(new_sw);
Precision(new_sw);
if (new_sw->scale.resize)
TryResize(new_sw);
GetScaledSize(new_sw);
BuildTable(new_sw);
PositionImage(new_sw);
redisplay = True;
}
}
if (streq(XtNprecision, args[i].name)) {
if ((new_sw->scale.precision =
atof(new_sw->scale.precision_str)) < 0.0) {
new_sw->scale.precision = cur_sw->scale.precision;
XtWarning("Precision has to be a positive number.");
}
if (new_sw->scale.precision != cur_sw->scale.precision) {
if (new_sw->scale.proportional) Proportional(new_sw);
Precision(new_sw);
GetScaledSize(new_sw);
BuildTable(new_sw);
PositionImage(new_sw);
redisplay = True;
}
}
}
return(redisplay);
}
void
SWUnscale(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
ScaleWidget sw = (ScaleWidget) w;
Unscale(sw);
PositionImage(sw);
XClearArea(XtDisplay(w), XtWindow(w), 0, 0, 0, 0, True);
}
void
SWAutoscale(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
ScaleWidget sw = (ScaleWidget) w;
Autoscale(sw);
PositionImage(sw);
XClearArea(XtDisplay(w), XtWindow(w), 0, 0, 0, 0, True);
}
void
SWInitialSize(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
ScaleWidget sw = (ScaleWidget) w;
GetInitialScaleValues(sw);
if (sw->scale.proportional) Proportional(sw);
Precision(sw);
if (sw->scale.resize)
TryResize(sw);
GetScaledSize(sw);
BuildTable(sw);
PositionImage(sw);
XClearArea(XtDisplay(w), XtWindow(w), 0, 0, 0, 0, True);
}
void
SWSetImage(Widget w, XImage *image)
{
int n;
Arg wargs[2];
n = 0;
XtSetArg(wargs[n], XtNimage, (XtArgVal) image); n++;
XtSetValues(w, wargs, n);
}
void
RequestSelection(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
SWRequestSelection(w, event->xbutton.time);
}
void
GrabSelection(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
SWGrabSelection(w, event->xbutton.time);
}
Pixmap
SWGetPixmap(Widget w)
{
ScaleWidget sw = (ScaleWidget) w;
Pixmap pixmap;
pixmap = XCreatePixmap(XtDisplay(w), XtWindow(w),
sw->scale.width,
sw->scale.height,
sw->scale.image->depth);
ScaleImage(sw, pixmap,
0, 0, 0, 0,
(Dimension) sw->scale.image->width,
(Dimension) sw->scale.image->height);
return(pixmap);
}