diff options
Diffstat (limited to 'src/sp-mesh-array.h')
| -rw-r--r-- | src/sp-mesh-array.h | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/src/sp-mesh-array.h b/src/sp-mesh-array.h deleted file mode 100644 index df43638db..000000000 --- a/src/sp-mesh-array.h +++ /dev/null @@ -1,231 +0,0 @@ -#ifndef SEEN_SP_MESH_ARRAY_H -#define SEEN_SP_MESH_ARRAY_H -/* - * Authors: - * Tavmjong Bah <tavmjong@free.fr> - * - * Copyrigt (C) 2012 Tavmjong Bah - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -/** - A group of classes and functions for manipulating mesh gradients. - - A mesh is made up of an array of patches. Each patch has four sides and four corners. The sides can - be shared between two patches and the corners between up to four. - - The order of the points for each side always goes from left to right or top to bottom. - For sides 2 and 3 the points must be reversed when used (as in calls to cairo functions). - - Two patches: (C=corner, S=side, H=handle, T=tensor) - - C0 H1 H2 C1 C0 H1 H2 C1 - + ---------- + ---------- + - | S0 | S0 | - H1 | T0 T1 |H1 T0 T1 | H1 - |S3 S1|S3 S1| - H2 | T3 T2 |H2 T3 T2 | H2 - | S2 | S2 | - + ---------- + ---------- + - C3 H1 H2 C2 C3 H1 H2 C2 - - The mesh is stored internally as an array of nodes that includes the tensor nodes. - - Note: This code uses tensor points which are not part of the SVG2 plan at the moment. - Including tensor points was motivated by a desire to experiment with their usefulness - in smoothing color transitions. There doesn't seem to be much advantage for that - purpose. However including them internally allows for storing all the points in - an array which simplifies things like inserting new rows or columns. -*/ - -#include <2geom/point.h> -#include "color.h" - -// For color picking -#include "sp-item.h" - -enum SPMeshType { - SP_MESH_TYPE_COONS, - SP_MESH_TYPE_BICUBIC -}; - -enum SPMeshGeometry { - SP_MESH_GEOMETRY_NORMAL, - SP_MESH_GEOMETRY_CONICAL -}; - -enum NodeType { - MG_NODE_TYPE_UNKNOWN, - MG_NODE_TYPE_CORNER, - MG_NODE_TYPE_HANDLE, - MG_NODE_TYPE_TENSOR -}; - -// Is a node along an edge? -enum NodeEdge { - MG_NODE_EDGE_NONE, - MG_NODE_EDGE_TOP = 1, - MG_NODE_EDGE_LEFT = 2, - MG_NODE_EDGE_BOTTOM = 4, - MG_NODE_EDGE_RIGHT = 8 -}; - -enum MeshCornerOperation { - MG_CORNER_SIDE_TOGGLE, - MG_CORNER_SIDE_ARC, - MG_CORNER_TENSOR_TOGGLE, - MG_CORNER_COLOR_SMOOTH, - MG_CORNER_COLOR_PICK, - MG_CORNER_INSERT -}; - -enum MeshNodeOperation { - MG_NODE_NO_SCALE, - MG_NODE_SCALE, - MG_NODE_SCALE_HANDLE -}; - -class SPStop; - -class SPMeshNode { -public: - SPMeshNode() { - node_type = MG_NODE_TYPE_UNKNOWN; - node_edge = MG_NODE_EDGE_NONE; - set = false; - draggable = -1; - path_type = 'u'; - opacity = 0.0; - stop = nullptr; - } - NodeType node_type; - unsigned int node_edge; - bool set; - Geom::Point p; - unsigned int draggable; // index of on-screen node - char path_type; - SPColor color; - double opacity; - SPStop *stop; // Stop corresponding to node. -}; - - -// I for Internal to distinguish it from the Object class -// This is a convenience class... -class SPMeshPatchI { - -private: - std::vector<std::vector< SPMeshNode* > > *nodes; - int row; - int col; - -public: - SPMeshPatchI( std::vector<std::vector< SPMeshNode* > > *n, int r, int c ); - Geom::Point getPoint( unsigned int side, unsigned int point ); - std::vector< Geom::Point > getPointsForSide( unsigned int i ); - void setPoint( unsigned int side, unsigned int point, Geom::Point p, bool set = true ); - char getPathType( unsigned int i ); - void setPathType( unsigned int, char t ); - Geom::Point getTensorPoint( unsigned int i ); - void setTensorPoint( unsigned int i, Geom::Point p ); - bool tensorIsSet(); - bool tensorIsSet( unsigned int i ); - Geom::Point coonsTensorPoint( unsigned int i ); - void updateNodes(); - SPColor getColor( unsigned int i ); - void setColor( unsigned int i, SPColor c ); - double getOpacity( unsigned int i ); - void setOpacity( unsigned int i, double o ); - SPStop* getStopPtr( unsigned int i ); - void setStopPtr( unsigned int i, SPStop* ); -}; - -class SPMeshGradient; -class SPCurve; - -// An array of mesh nodes. -class SPMeshNodeArray { - -// Should be private -public: - SPMeshGradient *mg; - std::vector< std::vector< SPMeshNode* > > nodes; - -public: - // Draggables to nodes - bool draggers_valid; - std::vector< SPMeshNode* > corners; - std::vector< SPMeshNode* > handles; - std::vector< SPMeshNode* > tensors; - -public: - - friend class SPMeshPatchI; - - SPMeshNodeArray() { built = false; mg = NULL; draggers_valid = false; }; - SPMeshNodeArray( SPMeshGradient *mg ); - SPMeshNodeArray( const SPMeshNodeArray& rhs ); - SPMeshNodeArray& operator=(const SPMeshNodeArray& rhs); - - ~SPMeshNodeArray() { clear(); }; - bool built; - - bool read( SPMeshGradient *mg ); - void write( SPMeshGradient *mg ); - void create( SPMeshGradient *mg, SPItem *item, Geom::OptRect bbox ); - void clear(); - void print(); - - // Fill 'smooth' with a smoothed version by subdividing each patch. - void bicubic( SPMeshNodeArray* smooth, SPMeshType type); - - // Get size of patch - unsigned int patch_rows(); - unsigned int patch_columns(); - - SPMeshNode * node( unsigned int i, unsigned int j ) { return nodes[i][j]; } - - // Operations on corners - bool adjacent_corners( unsigned int i, unsigned int j, SPMeshNode* n[4] ); - unsigned int side_toggle( std::vector< unsigned int > ); - unsigned int side_arc( std::vector< unsigned int > ); - unsigned int tensor_toggle( std::vector< unsigned int > ); - unsigned int color_smooth( std::vector< unsigned int > ); - unsigned int color_pick( std::vector< unsigned int >, SPItem* ); - unsigned int insert( std::vector< unsigned int > ); - - // Update other nodes in response to a node move. - void update_handles( unsigned int corner, std::vector< unsigned int > selected_corners, Geom::Point old_p, MeshNodeOperation op ); - - // Return outline path (don't forget to unref() when done with curve) - SPCurve * outline_path(); - - // Transform array - void transform(Geom::Affine const &m); - - // Transform mesh to fill box. Return true if not identity transform. - bool fill_box(Geom::OptRect &box); - - // Find bounding box - // Geom::OptRect findBoundingBox(); - - void split_row( unsigned int i, unsigned int n ); - void split_column( unsigned int j, unsigned int n ); - void split_row( unsigned int i, double coord ); - void split_column( unsigned int j, double coord ); -}; - -#endif /* !SEEN_SP_MESH_ARRAY_H */ - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - c-basic-offset:2 - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |