mirror of
https://github.com/OpenMW/openmw.git
synced 2025-02-25 07:09:43 +00:00
134 lines
4.3 KiB
C++
134 lines
4.3 KiB
C++
/*!
|
|
@file
|
|
@author George Evmenov
|
|
@date 05/2009
|
|
@module
|
|
*/
|
|
/*
|
|
This file is part of MyGUI.
|
|
|
|
MyGUI is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
MyGUI 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "MyGUI_Precompiled.h"
|
|
#include "MyGUI_RotatingSkin.h"
|
|
#include "MyGUI_RenderItem.h"
|
|
#include "MyGUI_CommonStateInfo.h"
|
|
|
|
namespace MyGUI
|
|
{
|
|
|
|
RotatingSkin::RotatingSkin() :
|
|
SubSkin(),
|
|
mAngle(0.0f),
|
|
mLocalCenter(false)
|
|
{
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
mBaseAngles[i] = 0.0f;
|
|
mBaseDistances[i] = 0.0f;
|
|
}
|
|
}
|
|
|
|
RotatingSkin::~RotatingSkin()
|
|
{
|
|
}
|
|
|
|
void RotatingSkin::setAngle(float _angle)
|
|
{
|
|
mAngle = _angle;
|
|
if (nullptr != mNode) mNode->outOfDate(mRenderItem);
|
|
}
|
|
|
|
void RotatingSkin::setCenter(const IntPoint &_center, bool _local)
|
|
{
|
|
mCenterPos = _center;
|
|
mLocalCenter = _local;
|
|
recalculateAngles();
|
|
if (nullptr != mNode) mNode->outOfDate(mRenderItem);
|
|
}
|
|
|
|
IntPoint RotatingSkin::getCenter(bool _local) const
|
|
{
|
|
return mCenterPos + (_local ? IntPoint() : mCroppedParent->getAbsolutePosition());
|
|
}
|
|
|
|
void RotatingSkin::doRender()
|
|
{
|
|
if ((!mVisible) || mEmptyView) return;
|
|
|
|
VertexQuad* quad = (VertexQuad*)mRenderItem->getCurrentVertextBuffer();
|
|
|
|
const RenderTargetInfo& info = mRenderItem->getRenderTarget()->getInfo();
|
|
|
|
float vertex_z = info.maximumDepth;
|
|
|
|
float vertex_left_base = ((info.pixScaleX * (float)(mCurrentCoord.left + mCroppedParent->getAbsoluteLeft() + mCenterPos.left) + info.hOffset) * 2) - 1;
|
|
float vertex_top_base = -(((info.pixScaleY * (float)(mCurrentCoord.top + mCroppedParent->getAbsoluteTop() + mCenterPos.top) + info.vOffset) * 2) - 1);
|
|
|
|
// FIXME: do it only when size changes
|
|
recalculateAngles();
|
|
|
|
quad->set(
|
|
vertex_left_base + cos(-mAngle + mBaseAngles[0]) * mBaseDistances[0] * info.pixScaleX * -2,
|
|
vertex_top_base + sin(-mAngle + mBaseAngles[0]) * mBaseDistances[0] * info.pixScaleY * -2,
|
|
vertex_left_base + cos(-mAngle + mBaseAngles[3]) * mBaseDistances[3] * info.pixScaleX * -2,
|
|
vertex_top_base + sin(-mAngle + mBaseAngles[3]) * mBaseDistances[3] * info.pixScaleY * -2,
|
|
vertex_left_base + cos(-mAngle + mBaseAngles[2]) * mBaseDistances[2] * info.pixScaleX * -2,
|
|
vertex_top_base + sin(-mAngle + mBaseAngles[2]) * mBaseDistances[2] * info.pixScaleY * -2,
|
|
vertex_left_base + cos(-mAngle + mBaseAngles[1]) * mBaseDistances[1] * info.pixScaleX * -2,
|
|
vertex_top_base + sin(-mAngle + mBaseAngles[1]) * mBaseDistances[1] * info.pixScaleY * -2,
|
|
vertex_z,
|
|
mCurrentTexture.left,
|
|
mCurrentTexture.top,
|
|
mCurrentTexture.right,
|
|
mCurrentTexture.bottom,
|
|
mCurrentColour
|
|
);
|
|
|
|
mRenderItem->setLastVertexCount(VertexQuad::VertexCount);
|
|
}
|
|
|
|
inline float len(float x, float y) { return sqrt(x*x + y*y); }
|
|
|
|
void RotatingSkin::recalculateAngles()
|
|
{
|
|
#ifndef M_PI
|
|
const float M_PI = 3.141593f;
|
|
#endif
|
|
// FIXME mLocalCenter ignored
|
|
float left_base = 0;
|
|
float top_base = 0;
|
|
|
|
if (!mLocalCenter)
|
|
{
|
|
left_base = (float)mCurrentCoord.width;
|
|
top_base = (float)mCurrentCoord.height;
|
|
}
|
|
|
|
float width_base = (float)mCurrentCoord.width;
|
|
float height_base = (float)mCurrentCoord.height;
|
|
|
|
mBaseAngles[0] = atan2((float) - mCenterPos.left, - mCenterPos.top) + M_PI/2;
|
|
mBaseAngles[1] = atan2((float) - mCenterPos.left, height_base - mCenterPos.top) + M_PI/2;
|
|
mBaseAngles[2] = atan2((float)width_base - mCenterPos.left, height_base - mCenterPos.top) + M_PI/2;
|
|
mBaseAngles[3] = atan2((float)width_base - mCenterPos.left, - mCenterPos.top) + M_PI/2;
|
|
|
|
mBaseDistances[0] = len((float) - mCenterPos.left, - mCenterPos.top);
|
|
mBaseDistances[1] = len((float) - mCenterPos.left, height_base - mCenterPos.top);
|
|
mBaseDistances[2] = len((float)width_base - mCenterPos.left, height_base - mCenterPos.top);
|
|
mBaseDistances[3] = len((float)width_base - mCenterPos.left, - mCenterPos.top);
|
|
|
|
}
|
|
|
|
} // namespace MyGUI
|