71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
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#include <plib/ssg.h>
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class FGPanel;
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class SGPropertyNode;
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// PanelNode defines an SSG leaf object that draws a FGPanel object
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// into the scene graph. Note that this is an incomplete SSG object,
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// many methods, mostly involved with modelling and runtime
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// inspection, are unimplemented.
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class FGPanelNode : public ssgLeaf
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{
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protected:
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virtual void draw_geometry();
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public:
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FGPanelNode(SGPropertyNode* props);
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virtual ~FGPanelNode();
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virtual void draw();
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void mouseEvent(int button, int updown, int x, int y);
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virtual void recalcBSphere() { bsphere_is_invalid = 0; }
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//
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// A bunch of Plib functions that aren't implemented. I don't
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// even know what many of them do, but they're pure virtual and
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// require implementation.
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//
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virtual int getNumTriangles() { die(); return 0; }
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virtual void getTriangle(int n, short* v1, short* v2, short* v3) { die(); }
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virtual int getNumLines() { die(); return 0; }
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virtual void getLine(int n, short* v1, short* v2) { die(); }
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virtual void drawHighlight(sgVec4 colour) { die(); }
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virtual void drawHighlight(sgVec4 colour, int i) { die(); }
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virtual float* getVertex(int i) { die(); return 0; }
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virtual float* getNormal(int i) { die(); return 0; }
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virtual float* getColour(int i) { die(); return 0; }
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virtual float* getTexCoord(int i) { die(); return 0; }
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virtual void pick(int baseName) { die(); }
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virtual void isect_triangles(sgSphere* s, sgMat4 m, int testNeeded) { die(); }
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virtual void hot_triangles(sgVec3 s, sgMat4 m, int testNeeded) { die(); }
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virtual void los_triangles(sgVec3 s, sgMat4 m, int testNeeded) { die(); }
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virtual void transform(const sgMat4 m) { die(); }
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private:
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// Handler for all the unimplemented methods above
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void die();
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FGPanel* _panel;
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// Panel corner coordinates
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float _bottomLeft[3], _topLeft[3], _bottomRight[3];
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// The input range expected in the panel definition. These x/y
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// coordinates will map to the right/top sides.
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float _xmax, _ymax;
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// The matrix that results, which transforms 2D x/y panel
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// coordinates into 3D coordinates of the panel quadrilateral.
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GLfloat _xform[16];
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// The matrix transformation state that was active the last time
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// we were rendered. Used by the mouse code to compute
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// intersections.
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GLfloat _lastModelview[16];
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GLfloat _lastProjection[16];
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GLint _lastViewport[4];
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};
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