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csgrid.h /* Crystal Space Windowing System : grid class Copyright (C) 2000 by Norman Krämer <normank@lycosmail.com> This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __CSWSGRID_H__ #define __CSWSGRID_H__ #include "csws/csscrbar.h" #include "csutil/csvector.h" #include "csutil/csstring.h" typedef bool (*csRegionTreeFunc) (csSome node, csSome databag); class csRegionTree2D; class csSparseGrid; class csGridCell; class csGridView; class csGrid; class csSplitter; class csRegionTree2D { public: csRect region; csRegionTree2D *children[5]; // max. 5 children possible csSome data; public: csRegionTree2D (); csRegionTree2D (csRect area, csSome data); ~csRegionTree2D (); void Insert (csRect &area, csSome data); void FindRegion (const csRect &area, csVector &vLeafList); void Traverse (csRegionTreeFunc userFunc, csSome databag = NULL); }; class csSparseGrid { friend class csGrid; /* * A single entry in the "grid row" array. */ struct csGridRowEntry { int col; csSome data; // Initialize the object with given column and associated data csGridRowEntry (int theCol, csSome theData) : col (theCol), data (theData) {} }; /* * A "grid row" is a horizontal stripe of cells which makes up the * entire grid. Every data item in this csVector is a csGridRowEntry. * The grid row object does not contain all the cells as separate objects; * this would waste too much memory. Instead, we keep only those cell * objects which have associated data items. The cells are kept sorted * by column number for faster searching. */ class csGridRow : public csVector { int col; public: // Initialize the object csGridRow (int theCol); // Destroy the object virtual ~csGridRow (); // Set the data at given column void SetAt (int col, csSome data); // Get the row entry at given column csGridRowEntry *Get (int index); // Compare two row entries virtual int Compare (csSome Item1, csSome Item2, int Mode) const; // Compare a row entry with a key virtual int CompareKey (csSome Item1, csConstSome Key, int Mode) const; // Free a row entry item virtual bool FreeItem (csSome Item); }; friend class csSparseGrid::csGridRow; /* * A "grid row set" is an array of "grid rows", * e.g. this is the grid itself. */ class csGridRowSet : public csGridRow { public: // Initialize the grid row set object csGridRowSet (int theRow) : csGridRow (theRow) {} // destructor virtual ~csGridRowSet () {DeleteAll ();} // Free a particular grid row object virtual bool FreeItem (csSome Item) { delete (csGridRow *)((csGridRowEntry *)Item)->data; delete (csGridRowEntry *)Item; return true; } }; // The Grid (AKA The Matrix :) csGridRowSet rows; public: csSparseGrid () : rows (8) {} csSome GetAt (int row, int col) { csSome result = NULL; int idx1 = rows.FindSortedKey ((csConstSome)row); if (idx1 != -1) { int idx2 = ((csGridRow *)rows.Get (idx1)->data)->FindSortedKey ((csConstSome)col); if (idx2 != -1) result = ((csGridRow *)rows.Get (idx1)->data)->Get (idx2)->data; } return result; } // Set the data at given row/column void SetAt (int row, int col, csSome data) { int idx = rows.FindSortedKey ((csConstSome)row); if (idx == -1) idx = rows.InsertSorted (new csGridRowEntry (row, new csGridRow (row))); ((csGridRow *)rows.Get (idx)->data)->SetAt (col, data); } }; enum csGridCellBorderStyle { gcbsNone = 0, gcbsDash, gcbsDashPoint, gcbsDashPointPoint, gcbsDashDashPoint, gcbsLine }; #define CSS_GRIDCELL_SELECTED 0x00010000 class csGridCell : public csComponent { class csCellBorder { public: csGridCellBorderStyle style; int thick; csCellBorder () : style (gcbsLine), thick (1) {} }; bool inUse; public: csCellBorder upper, lower, left, right; int row, col; csSome data; csString valuePattern; csGridCell (); virtual void Draw (); bool IsUsed () { return inUse; } void SetUsed (bool iState = true) { inUse = iState; } protected: void DrawLine (int x1, int y1, int x2, int y2, csCellBorder &border); }; #define CSGVS_HSCROLL 0x00000001 #define CSGVS_VSCROLL 0x00000002 #define CSGVS_DEFAULTVALUE (CSGVS_HSCROLL | CSGVS_VSCROLL) class csGridView : public csComponent { protected: csRect area; csGrid *pGrid; int row, col; bool fPlaceItems; int Style; csScrollBar *hscroll, *vscroll; void CooAt (int theX, int theY, int &theRow, int &theCol); public: float areafactor; csGridView (csGrid *pParent, const csRect &region, int iStyle = CSGVS_DEFAULTVALUE); csGridView (const csGridView &view, int iStyle = -1); virtual void Draw (); virtual bool HandleEvent (iEvent& Event); virtual bool SetRect (int xmin, int ymin, int xmax, int ymax); const csRect& GetArea (){return area;} virtual void FixSize (int &newW, int &newH); virtual void SuggestSize (int &w, int &h); csGridView *SplitX (int x, int iStyle = -1); csGridView *SplitY (int y, int iStyle = -1); void SetViewArea (const csRect& rc) { area.Set (rc.xmin, rc.ymin, rc.xmax, rc.ymax); col = area.xmin; row = area.ymin; } protected: virtual csGridView *CreateCopy (int iStyle); void PlaceItems (); }; #define CSGS_HSPLIT 0x00000004 #define CSGS_VSPLIT 0x00000008 #define CSGS_DEFAULTVALUE (CSGS_HSPLIT | CSGS_VSPLIT) #define CSGCS_NONE 1 #define CSGCS_CELL 2 #define CSGCS_ROW 3 #define CSGCS_COLUMN 4 enum { cscmdGridCursorChanged = 0x00000F00 }; class csGrid : public csComponent { protected: friend class csGridView; csRegionTree2D *regions, *viewlayout; csSparseGrid *grid; csVector vViews; csGridView *activeView; csVector vRegionStyles; csSplitter *splitterX, *splitterY; int cursorStyle; int xcur, ycur; void CalcMinimalSize (csRegionTree2D *node, int &w, int &h); void PlaceGadgets (); private: // Common method for constructors void init (csComponent *pParent, csRect &rc, int iStyle, csGridCell *gc); public: csGrid (csComponent *pParent, int nRows, int nCols, int iStyle = CSGS_DEFAULTVALUE | CSGVS_DEFAULTVALUE); csGrid (csComponent *pParent, int nRows, int nCols, csGridCell *gridpattern, int iStyle = CSGS_DEFAULTVALUE | CSGVS_DEFAULTVALUE); virtual ~csGrid (); virtual void SetCursorStyle (int iCursorStyle = CSGCS_NONE); virtual int GetCursorStyle (); virtual void GetCursorPos (int &row, int &col); virtual void SetCursorPos (int row, int col); virtual void Draw (); virtual bool SetRect (int xmin, int ymin, int xmax, int ymax); virtual void FixSize (int &newW, int &newH); virtual void SuggestSize (int &w, int &h); virtual bool HandleEvent (iEvent &Event); void CreateRegion (csRect& rc, csGridCell *cell); csGridView* GetRootView () { return (csGridView*)vViews.Get (0); } csGridView *GetActiveView () {return activeView;} void SetActiveView (csGridView *view); virtual void SetStringAt (int row, int col, const char *data); csString *GetStringAt (int row, int col); }; #endif Generated for Crystal Space by doxygen 1.2.5 written by Dimitri van Heesch, ©1997-2000