/*
* Class: magick_Magick
* Method: parseImageGeometry
* Signature: (Ljava/lang/String;Ljava/awt/Rectangle;)I
*/
JNIEXPORT jint JNICALL Java_magick_Magick_parseImageGeometry
(JNIEnv *env, jclass magickClass, jstring geometry, jobject rect)
{
unsigned long x, y, width, height;
jint flags;
const char *cstr;
if (!getIntFieldValue(env, rect, "width", NULL, (jint *) &width) ||
!getIntFieldValue(env, rect, "height", NULL, (jint *) &height) ||
!getIntFieldValue(env, rect, "x", NULL, (jint *) &x) ||
!getIntFieldValue(env, rect, "y", NULL, (jint *) &y)) {
throwMagickException(env, "Unable to obtain Rectangle values");
return 0;
}
cstr = (const char *) (*env)->GetStringUTFChars(env, geometry, 0);
flags = ParseImageGeometry(cstr, &x, &y, &width, &height);
(*env)->ReleaseStringUTFChars(env, geometry, cstr);
if (!setIntFieldValue(env, rect, "width", NULL, width) ||
!setIntFieldValue(env, rect, "height", NULL, height) ||
!setIntFieldValue(env, rect, "x", NULL, x) ||
!setIntFieldValue(env, rect, "y", NULL, y)) {
throwMagickException(env, "Unable to set Rectangle values");
return 0;
}
return flags;
}
/*
* From a java.awt.Rectangle object, construct a ImageMagick
* RectangleInfo, as passed in from the parameter.
*
* Input:
* env Java VM environment
* jRect an instance of java.awt.Rectangle
*
* Output:
* iRect to be initilised by values in jRect
*
* Return:
* non-zero if successful
* zero if failed
*/
int getRectangle(JNIEnv *env, jobject jRect, RectangleInfo *iRect)
{
jint width, height, x, y;
int retVal =
getIntFieldValue(env, jRect, "width", NULL, (jint *) &width) &&
getIntFieldValue(env, jRect, "height", NULL, (jint *) &height) &&
getIntFieldValue(env, jRect, "x", NULL, (jint *) &x) &&
getIntFieldValue(env, jRect, "y", NULL, (jint *) &y);
if (retVal) {
iRect->width = width;
iRect->height = height;
iRect->x = x;
iRect->y = y;
}
return retVal;
}
/*
* From a magick.PixelPacket object, construct a ImageMagick
* PixelPacket, as passed in from the parameter.
*
* Input:
* env Java VM environment
* jPixelPacket an instance of magick.PixelPacket
*
* Output:
* iPixelPacket to be initilised by values in jPixelPacket
*
* Return:
* non-zero if successful
* zero if failed
*/
int getPixelPacket(JNIEnv *env,
jobject jPixelPacket,
PixelPacket *iPixelPacket)
{
jint red, green, blue, opacity;
int successful =
getIntFieldValue(env, jPixelPacket, "red", NULL,
&red) &&
getIntFieldValue(env, jPixelPacket, "green", NULL,
&green) &&
getIntFieldValue(env, jPixelPacket, "blue", NULL,
&blue) &&
getIntFieldValue(env, jPixelPacket, "opacity", NULL,
&opacity);
if (!successful) {
return successful;
}
iPixelPacket->red = (Quantum) red;
iPixelPacket->green = (Quantum) green;
iPixelPacket->blue = (Quantum) blue;
iPixelPacket->opacity = (Quantum) opacity;
return successful;
}