gtkradiant/plugins/textool/ControlPointsManager.cpp
TTimo b1bfb19ecd more eol-style
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/ZeroRadiant.ab@186 8a3a26a2-13c4-0310-b231-cf6edde360e5
2007-11-04 03:53:53 +00:00

332 lines
11 KiB
C++

/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
GtkRadiant 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.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// a class to handle control points in a 2D view
// TODO: this one can be placed under an interface, and provided to the editor as service
//
#include "StdAfx.h"
void CControlPointsManagerBFace::Init (int iPts, CtrlPts_t *Pts, C2DView *p2DView, int TexSize[2],
_QERFaceData* pFaceData, _QERQglTable *pQglTable)
{
ManagerState = Idle;
m_NumPoints = iPts;
m_pPts = Pts;
// store the initial config
memcpy( &m_RefPts, Pts, sizeof( CtrlPts_t ) );
// init TM
memset( m_TM, 0, sizeof( float[2][3] ) );
m_TM[0][0] = 1.0f; m_TM[1][1] = 1.0f;
m_bGotAnchor = false;
m_TransOffset[0] = 0.0f; m_TransOffset[1] = 0.0f;
m_TexSize[0] = TexSize[0];
m_TexSize[1] = TexSize[1];
m_pFaceData = pFaceData;
CControlPointsManager::Init( p2DView, pQglTable );
}
bool CControlPointsManagerBFace::OnLButtonDown (int xPos, int yPos)
{
if (ManagerState == Idle)
{
int i;
// scan the point list to see if we selected something
for ( i=0; i<m_NumPoints; i++ )
if ( m_p2DView->DoesSelect( xPos, yPos, m_pPts->data[i] ) )
{
m_iDragPoint = i;
ManagerState = Drag;
if (m_bGotAnchor && i == m_iAnchorPoint)
{
// this means we selected the Anchor, so we'll translate
m_bGotAnchor = false;
}
// perhaps we won't use translation, but we can compute it anyway
ComputeTransOffset(i);
if (m_bGotAnchor)
{
// we have an Anchor and selected another point
m_Anchor[0] = m_pPts->data[m_iAnchorPoint][0];
m_Anchor[1] = m_pPts->data[m_iAnchorPoint][1];
}
}
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
bool CControlPointsManagerBFace::OnMouseMove (int xPos, int yPos)
{
if (ManagerState == Drag)
{
if (m_bGotAnchor)
{
// there's an anchor, we are rotating the shape
// we need to work in XY space for orthonormality
float Pt[2];
vec3_t V1,V2;
vec3_t cross;
float c,s;
// used in XY space
float XYTM[2][3];
float XYRefAnchor[2];
float XYAnchor[2];
m_p2DView->GridForWindow( Pt, xPos, yPos );
V2[0] = Pt[0] - m_Anchor[0];
V2[1] = Pt[1] - m_Anchor[1];
V2[2] = 0.0f;
V1[0] = m_RefPts.data[m_iDragPoint][0] - m_RefPts.data[m_iAnchorPoint][0];
V1[1] = m_RefPts.data[m_iDragPoint][1] - m_RefPts.data[m_iAnchorPoint][1];
V1[2] = 0.0f;
// compute transformation from V1 to V2
// we need to work in XY orthonormal space
XYSpaceForSTSpace( V1, V1 );
XYSpaceForSTSpace( V2, V2 );
VectorNormalize( V2, V2 );
VectorNormalize( V1, V1 );
c = DotProduct( V1, V2 );
CrossProduct( V1, V2, cross );
s = VectorLength( cross );
// we compute the transformation matrix in XY space
// reference position of the Anchor in XY space
XYSpaceForSTSpace( XYRefAnchor, m_RefPts.data[m_iAnchorPoint] );
// current position of the Anchor in XY space
XYSpaceForSTSpace( XYAnchor, m_Anchor );
// compute transformation matrix
XYTM[0][0] = c; XYTM[1][1] = c;
if (cross[2]>0)
s *= -1.0f;
XYTM[0][1] = s; XYTM[1][0] = -s;
XYTM[0][2] = -c*XYRefAnchor[0] - s*XYRefAnchor[1] + XYAnchor[0];
XYTM[1][2] = s*XYRefAnchor[0] - c*XYRefAnchor[1] + XYAnchor[1];
// express this transformation matrix in ST space
m_TM[0][0] = XYTM[0][0];
m_TM[1][0] = XYTM[1][0] * (float)m_TexSize[0] / (float)m_TexSize[1];
m_TM[0][1] = XYTM[0][1] * (float)m_TexSize[1] / (float)m_TexSize[0];
m_TM[1][1] = XYTM[1][1];
m_TM[0][2] = XYTM[0][2] / (float)m_TexSize[0];
m_TM[1][2] = XYTM[1][2] / (float)m_TexSize[1];
// update all points
UpdateCtrlPts();
}
else
{
// no Anchor point is defined, we translate all points
m_p2DView->GridForWindow( m_pPts->data[m_iDragPoint], xPos, yPos );
m_TM[0][2] = m_pPts->data[m_iDragPoint][0] + m_TransOffset[0];
m_TM[1][2] = m_pPts->data[m_iDragPoint][1] + m_TransOffset[1];
// update all points
UpdateCtrlPts();
}
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
bool CControlPointsManagerBFace::OnLButtonUp (int x, int y)
{
if (ManagerState == Drag)
{
// this button is gonna become our Anchor
m_bGotAnchor = true;
m_iAnchorPoint = m_iDragPoint;
// let's get out of Drag mode
ManagerState = Idle;
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
void CControlPointsManagerBFace::Render()
{
int i;
m_pQglTable->m_pfn_qglColor3f(0, 1, 0);
m_pQglTable->m_pfn_qglPointSize(6);
m_pQglTable->m_pfn_qglBegin( GL_POINTS );
for ( i=0; i<m_NumPoints; i++ )
{
if ( ManagerState == Drag && i == m_iDragPoint )
m_pQglTable->m_pfn_qglColor3f(1, 0, 0);
else if ( m_bGotAnchor && i == m_iAnchorPoint )
m_pQglTable->m_pfn_qglColor3f(0, 0, 1);
m_pQglTable->m_pfn_qglVertex2f( m_pPts->data[i][0], m_pPts->data[i][1] );
m_pQglTable->m_pfn_qglColor3f(0, 1, 0);
}
m_pQglTable->m_pfn_qglEnd();
}
void CControlPointsManagerBFace::UpdateCtrlPts()
{
int i;
// update all points
for ( i=0; i<m_NumPoints; i++ )
{
m_pPts->data[i][0] = m_RefPts.data[i][0]*m_TM[0][0]+m_RefPts.data[i][1]*m_TM[0][1]+m_TM[0][2];
m_pPts->data[i][1] = m_RefPts.data[i][0]*m_TM[1][0]+m_RefPts.data[i][1]*m_TM[1][1]+m_TM[1][2];
}
if (g_bPrefsUpdateCameraView)
{
Commit();
// tell Radiant to update
// NOTE: little speed optimisation, disable window updates, and only update camera view
g_FuncTable.m_pfnSetScreenUpdate( false );
g_SelectedFaceTable.m_pfnSetFaceInfo( 0, m_pFaceData );
g_FuncTable.m_pfnSetScreenUpdate( true );
g_FuncTable.m_pfnSysUpdateWindows( W_CAMERA );
}
}
//++timo FIXME: we are using a global for the reference data, use a m_pCancelFaceData instead
void CControlPointsManagerBFace::Commit( )
{
brushprimit_texdef_t aux;
aux.coords[0][0] = m_TM[0][0]*g_CancelFaceData.brushprimit_texdef.coords[0][0] + m_TM[0][1]*g_CancelFaceData.brushprimit_texdef.coords[1][0];
aux.coords[0][1] = m_TM[0][0]*g_CancelFaceData.brushprimit_texdef.coords[0][1] + m_TM[0][1]*g_CancelFaceData.brushprimit_texdef.coords[1][1];
aux.coords[0][2] = m_TM[0][0]*g_CancelFaceData.brushprimit_texdef.coords[0][2] + m_TM[0][1]*g_CancelFaceData.brushprimit_texdef.coords[1][2] + m_TM[0][2];
aux.coords[1][0] = m_TM[1][0]*g_CancelFaceData.brushprimit_texdef.coords[0][0] + m_TM[1][1]*g_CancelFaceData.brushprimit_texdef.coords[1][0];
aux.coords[1][1] = m_TM[1][0]*g_CancelFaceData.brushprimit_texdef.coords[0][1] + m_TM[1][1]*g_CancelFaceData.brushprimit_texdef.coords[1][1];
aux.coords[1][2] = m_TM[1][0]*g_CancelFaceData.brushprimit_texdef.coords[0][2] + m_TM[1][1]*g_CancelFaceData.brushprimit_texdef.coords[1][2] + m_TM[1][2];
memcpy( &m_pFaceData->brushprimit_texdef, &aux, sizeof(brushprimit_texdef_t) );
}
void CControlPointsManagerBFace::ComputeTransOffset(int i)
{
// compute the translation offset used to counteract rotation
m_TransOffset[0] = -m_TM[0][0]*m_RefPts.data[i][0] - m_TM[0][1]*m_RefPts.data[i][1];
m_TransOffset[1] = -m_TM[1][0]*m_RefPts.data[i][0] - m_TM[1][1]*m_RefPts.data[i][1];
}
void CControlPointsManagerBFace::XYSpaceForSTSpace( float xy[2], const float st[2] )
{
xy[0] = st[0] * (float)m_TexSize[0];
xy[1] = st[1] * (float)m_TexSize[1];
}
/*
======================================================================
patch manager
======================================================================
*/
void CControlPointsManagerPatch::Init( patchMesh_t* pWorkPatch, C2DView *p2DView, _QERQglTable *pQglTable, patchMesh_t* pPatch )
{
CControlPointsManager::Init( p2DView, pQglTable );
m_pPatch = pPatch;
m_pWorkPatch = pWorkPatch;
}
bool CControlPointsManagerPatch::OnLButtonDown (int xPos, int yPos)
{
if (ManagerState == Idle)
{
int i,j;
// scan the point list to see if we selected something
for ( i=0; i<m_pPatch->width; i++ )
for ( j=0; j<m_pPatch->height; j++ )
if ( m_p2DView->DoesSelect( xPos, yPos, m_pWorkPatch->ctrl[i][j].st ) )
{
m_iDragPoint[0] = i;
m_iDragPoint[1] = j;
ManagerState = Drag;
}
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
bool CControlPointsManagerPatch::OnMouseMove (int xPos, int yPos)
{
if (ManagerState == Drag)
{
m_p2DView->GridForWindow( m_pWorkPatch->ctrl[ m_iDragPoint[0] ][ m_iDragPoint[1] ].st, xPos, yPos );
if (g_bPrefsUpdateCameraView)
{
Commit();
// ask to rebuild the patch display data
m_pPatch->bDirty = true;
// send a repaint to the camera window as well
g_FuncTable.m_pfnSysUpdateWindows( W_CAMERA );
}
// send a repaint message
g_pToolWnd->Redraw ();
return true;
}
return false;
}
bool CControlPointsManagerPatch::OnLButtonUp (int x, int y)
{
if (ManagerState == Drag)
{
ManagerState = Idle;
// send a repaint message
g_pToolWnd->Redraw ();
}
return false;
}
void CControlPointsManagerPatch::Render()
{
int i,j;
m_pQglTable->m_pfn_qglColor3f(0, 1, 0);
m_pQglTable->m_pfn_qglPointSize(6);
m_pQglTable->m_pfn_qglBegin( GL_POINTS );
for ( i=0; i<m_pPatch->width; i++ )
for ( j=0; j<m_pPatch->height; j++ )
{
if ( ManagerState == Drag && i == m_iDragPoint[0] && j == m_iDragPoint[1] )
m_pQglTable->m_pfn_qglColor3f(1, 0, 0);
m_pQglTable->m_pfn_qglVertex2f( m_pWorkPatch->ctrl[i][j].st[0], m_pWorkPatch->ctrl[i][j].st[1] );
m_pQglTable->m_pfn_qglColor3f(0, 1, 0);
}
m_pQglTable->m_pfn_qglEnd();
}
void CControlPointsManagerPatch::Commit()
{
int i,j;
for ( i=0; i<m_pPatch->width; i++ )
for ( j=0; j<m_pPatch->height; j++ )
{
m_pPatch->ctrl[i][j].st[0] = m_pWorkPatch->ctrl[i][j].st[0];
m_pPatch->ctrl[i][j].st[1] = m_pWorkPatch->ctrl[i][j].st[1];
}
}