CGAffineTransform PDFPageGetDrawingTransform(CGPDFPageRef page, CGPDFBox box, float scale)
{
CGRect boxRect = CGPDFPageGetBoxRect(page, box);
int rotation = PDFPageGetRotation(page);
CGAffineTransform transform = CGAffineTransformMakeScale(scale, scale);
transform = CGAffineTransformRotate(transform, -(rotation * M_PI_2));
switch (rotation)
{
case 1:
transform = CGAffineTransformTranslate(transform, -CGRectGetWidth(boxRect), 0);
break;
case 2:
transform = CGAffineTransformTranslate(transform, -CGRectGetWidth(boxRect), 0);
transform = CGAffineTransformTranslate(transform, 0, -CGRectGetHeight(boxRect));
break;
case 3:
transform = CGAffineTransformTranslate(transform, 0, -CGRectGetHeight(boxRect));
break;
default:
break;
}
transform = CGAffineTransformTranslate(transform, -boxRect.origin.x, -boxRect.origin.y);
return transform;
}
JNIEXPORT void JNICALL OS_NATIVE(CGAffineTransformRotate)
(JNIEnv *env, jclass that, jfloatArray arg0, jfloat arg1, jfloatArray arg2)
{
jfloat *lparg0=NULL;
jfloat *lparg2=NULL;
OS_NATIVE_ENTER(env, that, CGAffineTransformRotate_FUNC);
if (arg0) if ((lparg0 = (*env)->GetFloatArrayElements(env, arg0, NULL)) == NULL) goto fail;
if (arg2) if ((lparg2 = (*env)->GetFloatArrayElements(env, arg2, NULL)) == NULL) goto fail;
*(CGAffineTransform *)lparg2 = CGAffineTransformRotate(*(CGAffineTransform *)lparg0, arg1);
fail:
if (arg2 && lparg2) (*env)->ReleaseFloatArrayElements(env, arg2, lparg2, 0);
if (arg0 && lparg0) (*env)->ReleaseFloatArrayElements(env, arg0, lparg0, JNI_ABORT);
OS_NATIVE_EXIT(env, that, CGAffineTransformRotate_FUNC);
}
void EJCanvasContext::rotate(float angle)
{
state->transform = CGAffineTransformRotate( state->transform, angle );
path->transform = state->transform;
}
AffineTransform &AffineTransform::rotate(double d)
{
m_transform = CGAffineTransformRotate(m_transform, d * deg2rad);
return *this;
}
Transform2D Transform2D::rotate(Float angleInRadians) const
{
return CGAffineTransformRotate(*this, angleInRadians);
}
void CCSprite::updateTransform(void)
{
assert(m_bUsesBatchNode);
// optimization. Quick return if not dirty
if (! m_bDirty)
{
return;
}
CGAffineTransform matrix;
// Optimization: if it is not visible, then do nothing
if (! m_bIsVisible)
{
m_sQuad.br.vertices = m_sQuad.tl.vertices = m_sQuad.tr.vertices = m_sQuad.bl.vertices = vertex3(0,0,0);
m_pobTextureAtlas->updateQuad(&m_sQuad, m_uAtlasIndex);
m_bDirty = m_bRecursiveDirty = false;
return;
}
// Optimization: If parent is batchnode, or parent is nil
// build Affine transform manually
if (! m_pParent || m_pParent == m_pobBatchNode)
{
float radians = -CC_DEGREES_TO_RADIANS(m_fRotation);
float c = cosf(radians);
float s = sinf(radians);
matrix = CGAffineTransformMake(c * m_fScaleX, s * m_fScaleX,
-s * m_fScaleY, c * m_fScaleY,
m_tPositionInPixels.x, m_tPositionInPixels.y);
matrix = CGAffineTransformTranslate(matrix, -m_tAnchorPointInPixels.x, -m_tAnchorPointInPixels.y);
} else // parent_ != batchNode_
{
// else do affine transformation according to the HonorParentTransform
matrix = CGAffineTransformIdentity;
ccHonorParentTransform prevHonor = CC_HONOR_PARENT_TRANSFORM_ALL;
for (CCNode *p = this; p && p != m_pobBatchNode; p = p->getParent())
{
// Might happen. Issue #1053
// how to implement, we can not use dynamic
// NSAssert( [p isKindOfClass:[CCSprite class]], @"CCSprite should be a CCSprite subclass. Probably you initialized an sprite with a batchnode, but you didn't add it to the batch node." );
struct transformValues_ tv;
((CCSprite*)p)->getTransformValues(&tv);
// If any of the parents are not visible, then don't draw this node
if (! tv.visible)
{
m_sQuad.br.vertices = m_sQuad.tl.vertices = m_sQuad.tr.vertices = m_sQuad.bl.vertices = vertex3(0,0,0);
m_pobTextureAtlas->updateQuad(&m_sQuad, m_uAtlasIndex);
m_bDirty = m_bRecursiveDirty = false;
return;
}
CGAffineTransform newMatrix = CGAffineTransformIdentity;
// 2nd: Translate, Rotate, Scale
if( prevHonor & CC_HONOR_PARENT_TRANSFORM_TRANSLATE )
{
newMatrix = CGAffineTransformTranslate(newMatrix, tv.pos.x, tv.pos.y);
}
if( prevHonor & CC_HONOR_PARENT_TRANSFORM_ROTATE )
{
newMatrix = CGAffineTransformRotate(newMatrix, -CC_DEGREES_TO_RADIANS(tv.rotation));
}
if( prevHonor & CC_HONOR_PARENT_TRANSFORM_SCALE )
{
newMatrix = CGAffineTransformScale(newMatrix, tv.scale.x, tv.scale.y);
}
// 3rd: Translate anchor point
newMatrix = CGAffineTransformTranslate(newMatrix, -tv.ap.x, -tv.ap.y);
// 4th: Matrix multiplication
matrix = CGAffineTransformConcat( matrix, newMatrix);
prevHonor = ((CCSprite*)p)->getHornorParentTransform();
}
}
//
// calculate the Quad based on the Affine Matrix
//
CGSize size = m_obRectInPixels.size;
float x1 = m_obOffsetPositionInPixels.x;
float y1 = m_obOffsetPositionInPixels.y;
float x2 = x1 + size.width;
float y2 = y1 + size.height;
float x = matrix.tx;
float y = matrix.ty;
float cr = matrix.a;
float sr = matrix.b;
float cr2 = matrix.d;
float sr2 = -matrix.c;
float ax = x1 * cr - y1 * sr2 + x;
float ay = x1 * sr + y1 * cr2 + y;
float bx = x2 * cr - y1 * sr2 + x;
float by = x2 * sr + y1 * cr2 + y;
float cx = x2 * cr - y2 * sr2 + x;
float cy = x2 * sr + y2 * cr2 + y;
float dx = x1 * cr - y2 * sr2 + x;
float dy = x1 * sr + y2 * cr2 + y;
m_sQuad.bl.vertices = vertex3((float)RENDER_IN_SUBPIXEL(ax), (float)RENDER_IN_SUBPIXEL(ay), m_fVertexZ);
m_sQuad.br.vertices = vertex3((float)RENDER_IN_SUBPIXEL(bx), (float)RENDER_IN_SUBPIXEL(by), m_fVertexZ);
m_sQuad.tl.vertices = vertex3((float)RENDER_IN_SUBPIXEL(dx), (float)RENDER_IN_SUBPIXEL(dy), m_fVertexZ);
m_sQuad.tr.vertices = vertex3((float)RENDER_IN_SUBPIXEL(cx), (float)RENDER_IN_SUBPIXEL(cy), m_fVertexZ);
m_pobTextureAtlas->updateQuad(&m_sQuad, m_uAtlasIndex);
m_bDirty = m_bRecursiveDirty = false;
}
