mirror of https://github.com/TTimo/GtkRadiant.git
134 lines
4.4 KiB
C++
134 lines
4.4 KiB
C++
/*
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Copyright (C) 1999-2006 Id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//-----------------------------------------------------------------------------
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//
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// DESCRIPTION:
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// a class to handle control points in a 2D view
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// TODO: this one can be placed under an interface, and provided to the editor as service
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//
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// NOTE: the C2DView *m_p2DView is the orthogonal mapping between window and ST space
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// in Drag mode (for rotation) we need an orthonormal XY space
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// we do ST <-> XY transformations using the texture size
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// ( for translation-only moves, orthogonal is enough )
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// FIXME: is there a better way to deal between Window space <-> ST space <-> XY space ?
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//
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// NOTE: ControlPointsManagers are a bit different between brush faces and patches
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// so there's a base virtual class, and we have two versions
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#ifndef _CONTROLPOINTSMANAGER_H_
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#define _CONTROLPOINTSMANAGER_H_
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class CControlPointsManager
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{
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protected:
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// used by Render
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OpenGLBinding *m_pQglTable;
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C2DView *m_p2DView;
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public:
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CControlPointsManager() { m_pQglTable = NULL; m_p2DView = NULL; }
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virtual ~CControlPointsManager() { }
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void Init( C2DView *p2DView, OpenGLBinding *pQglTable ) { m_pQglTable = pQglTable; m_p2DView = p2DView; }
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virtual bool OnLButtonDown (int x, int y) = 0;
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virtual bool OnMouseMove (int x, int y) = 0;
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virtual bool OnLButtonUp (int x, int y) = 0;
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virtual void render() = 0;
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virtual void Commit() = 0;
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};
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// brush face manager
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class CControlPointsManagerBFace : public CControlPointsManager
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{
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enum EManagerState { Idle, Drag } ManagerState;
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int m_NumPoints;
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// initial geometry
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CtrlPts_t m_RefPts;
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// current geometry
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CtrlPts_t *m_pPts;
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// transform matrix ( 2DView is Window <-> ST )
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float m_TM[2][3];
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// texture size for ST <-> XY
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int m_TexSize[2];
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// used when translating
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float m_TransOffset[2];
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// dragged point index
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int m_iDragPoint;
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// do we have an anchor ?
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bool m_bGotAnchor;
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// anchor point index
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int m_iAnchorPoint;
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// coordinates of Anchor
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float m_Anchor[2];
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// used for commit
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_QERFaceData *m_pFaceData;
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public:
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// construction / init -------------------------------------------------
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CControlPointsManagerBFace() { ManagerState = Idle; }
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virtual ~CControlPointsManagerBFace() { }
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// NOTE: pQglTable is sent to CControlPointsManager::Init
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void Init(int iPts, CtrlPts_t *Pts, C2DView *p2DView, int TexSize[2], _QERFaceData* pFaceData, OpenGLBinding *pQglTable);
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// CControlPointsManager interface -------------------------------------
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virtual bool OnLButtonDown (int x, int y);
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virtual bool OnMouseMove (int x, int y);
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virtual bool OnLButtonUp (int x, int y);
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virtual void render();
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virtual void Commit();
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private:
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// internal members
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void UpdateCtrlPts();
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void ComputeTransOffset(int i);
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void XYSpaceForSTSpace( float xy[2], const float st[2] );
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};
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// patch manager
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class CControlPointsManagerPatch : public CControlPointsManager
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{
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enum EManagerState { Idle, Drag } ManagerState;
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// reference data, used for commits
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patchMesh_t* m_pPatch;
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// work patch, holds current data
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patchMesh_t* m_pWorkPatch;
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int m_iDragPoint[2];
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public:
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// construction / init -------------------------------------------------
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CControlPointsManagerPatch() { ManagerState = Idle; }
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virtual ~CControlPointsManagerPatch() { }
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// NOTE: pQglTable is sent to CControlPointsManager::Init
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void Init( patchMesh_t* pWorkPatch, C2DView *p2DView, OpenGLBinding *pQglTable, patchMesh_t* pPatch );
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// CControlPointsManager interface -------------------------------------
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virtual bool OnLButtonDown (int x, int y);
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virtual bool OnMouseMove (int x, int y);
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virtual bool OnLButtonUp (int x, int y);
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virtual void render();
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virtual void Commit();
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};
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#endif
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