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drawn.h
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C/C++ Source or Header
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2002-09-08
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9KB
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228 lines
/////////////////////////////////////////////////////////////////////////////
// Name: drawn.h
// Purpose: wxDrawnShape
// Author: Julian Smart
// Modified by:
// Created: 12/07/98
// RCS-ID: $Id: drawn.h,v 1.2 2002/09/07 12:10:20 GD Exp $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _OGL_DRAWN_H_
#define _OGL_DRAWN_H_
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "drawn.h"
#endif
#include <wx/ogl/basic.h>
#define oglMETAFLAGS_OUTLINE 1
#define oglMETAFLAGS_ATTACHMENTS 2
class wxDrawnShape;
class wxPseudoMetaFile: public wxObject
{
DECLARE_DYNAMIC_CLASS(wxPseudoMetaFile)
public:
wxPseudoMetaFile();
wxPseudoMetaFile(wxPseudoMetaFile& mf);
~wxPseudoMetaFile();
void Draw(wxDC& dc, double xoffset, double yoffset);
#ifdef PROLOGIO
void WriteAttributes(wxExpr *clause, int whichAngle);
void ReadAttributes(wxExpr *clause, int whichAngle);
#endif
void Clear();
void Copy(wxPseudoMetaFile& copy);
void Scale(double sx, double sy);
void ScaleTo(double w, double h); // Scale to fit size
void Translate(double x, double y);
// Rotate about the given axis by theta radians from the x axis.
void Rotate(double x, double y, double theta);
bool LoadFromMetaFile(char *filename, double *width, double *height);
void GetBounds(double *minX, double *minY, double *maxX, double *maxY);
// Calculate size from current operations
void CalculateSize(wxDrawnShape* shape);
inline wxList& GetOutlineColours() const { return (wxList&) m_outlineColours; }
inline wxList& GetFillColours() const { return (wxList&) m_fillColours; }
inline void SetRotateable(bool rot) { m_rotateable = rot; }
inline bool GetRotateable() const { return m_rotateable; }
inline void SetSize(double w, double h) { m_width = w; m_height = h; }
inline void SetFillBrush(wxBrush* brush) { m_fillBrush = brush; }
inline wxBrush* GetFillBrush() const { return m_fillBrush; }
inline void SetOutlinePen(wxPen* pen) { m_outlinePen = pen; }
inline wxPen* GetOutlinePen() const { return m_outlinePen; }
inline void SetOutlineOp(int op) { m_outlineOp = op; }
inline int GetOutlineOp() const { return m_outlineOp; }
inline wxList& GetOps() const { return (wxList&) m_ops; }
// Is this a valid (non-empty) metafile?
inline bool IsValid() const { return (m_ops.Number() > 0); }
public:
/// Set of functions for drawing into a pseudo metafile.
/// They use integers, but doubles are used internally for accuracy
/// when scaling.
virtual void DrawLine(const wxPoint& pt1, const wxPoint& pt2);
virtual void DrawRectangle(const wxRect& rect);
virtual void DrawRoundedRectangle(const wxRect& rect, double radius);
virtual void DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt);
virtual void DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle);
virtual void DrawEllipse(const wxRect& rect);
virtual void DrawPoint(const wxPoint& pt);
virtual void DrawText(const wxString& text, const wxPoint& pt);
virtual void DrawLines(int n, wxPoint pts[]);
// flags:
// oglMETAFLAGS_OUTLINE: will be used for drawing the outline and
// also drawing lines/arrows at the circumference.
// oglMETAFLAGS_ATTACHMENTS: will be used for initialising attachment points at
// the vertices (perhaps a rare case...)
virtual void DrawPolygon(int n, wxPoint pts[], int flags = 0);
virtual void DrawSpline(int n, wxPoint pts[]);
virtual void SetClippingRect(const wxRect& rect);
virtual void DestroyClippingRect();
virtual void SetPen(wxPen* pen, bool isOutline = FALSE); // TODO: eventually, just store GDI object attributes, not actual
virtual void SetBrush(wxBrush* brush, bool isFill = FALSE); // pens/brushes etc.
virtual void SetFont(wxFont* font);
virtual void SetTextColour(const wxColour& colour);
virtual void SetBackgroundColour(const wxColour& colour);
virtual void SetBackgroundMode(int mode);
public:
bool m_rotateable;
double m_width;
double m_height;
wxList m_ops; // List of drawing operations (see drawnp.h)
wxList m_gdiObjects; // List of pens, brushes and fonts for this object.
int m_outlineOp; // The op representing the outline, if any
// Pen/brush specifying outline/fill colours
// to override operations.
wxPen* m_outlinePen;
wxBrush* m_fillBrush;
wxList m_outlineColours; // List of the GDI operations that comprise the outline
wxList m_fillColours; // List of the GDI operations that fill the shape
double m_currentRotation;
};
#define oglDRAWN_ANGLE_0 0
#define oglDRAWN_ANGLE_90 1
#define oglDRAWN_ANGLE_180 2
#define oglDRAWN_ANGLE_270 3
class wxDrawnShape: public wxRectangleShape
{
DECLARE_DYNAMIC_CLASS(wxDrawnShape)
public:
wxDrawnShape();
~wxDrawnShape();
void OnDraw(wxDC& dc);
#ifdef PROLOGIO
// I/O
void WriteAttributes(wxExpr *clause);
void ReadAttributes(wxExpr *clause);
#endif
// Does the copying for this object
void Copy(wxShape& copy);
void Scale(double sx, double sy);
void Translate(double x, double y);
// Rotate about the given axis by theta radians from the x axis.
void Rotate(double x, double y, double theta);
// Get current rotation
inline double GetRotation() const { return m_rotation; }
void SetSize(double w, double h, bool recursive = TRUE);
bool LoadFromMetaFile(char *filename);
inline void SetSaveToFile(bool save) { m_saveToFile = save; }
inline wxPseudoMetaFile& GetMetaFile(int which = 0) const { return (wxPseudoMetaFile&) m_metafiles[which]; }
void OnDrawOutline(wxDC& dc, double x, double y, double w, double h);
// Get the perimeter point using the special outline op, if there is one,
// otherwise use default wxRectangleShape scheme
bool GetPerimeterPoint(double x1, double y1,
double x2, double y2,
double *x3, double *y3);
/// Set of functions for drawing into a pseudo metafile.
/// They use integers, but doubles are used internally for accuracy
/// when scaling.
virtual void DrawLine(const wxPoint& pt1, const wxPoint& pt2);
virtual void DrawRectangle(const wxRect& rect);
virtual void DrawRoundedRectangle(const wxRect& rect, double radius);
virtual void DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt);
virtual void DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle);
virtual void DrawEllipse(const wxRect& rect);
virtual void DrawPoint(const wxPoint& pt);
virtual void DrawText(const wxString& text, const wxPoint& pt);
virtual void DrawLines(int n, wxPoint pts[]);
virtual void DrawPolygon(int n, wxPoint pts[], int flags = 0);
virtual void DrawSpline(int n, wxPoint pts[]);
virtual void SetClippingRect(const wxRect& rect);
virtual void DestroyClippingRect();
virtual void SetDrawnPen(wxPen* pen, bool isOutline = FALSE); // TODO: eventually, just store GDI object attributes, not actual
virtual void SetDrawnBrush(wxBrush* brush, bool isFill = FALSE); // pens/brushes etc.
virtual void SetDrawnFont(wxFont* font);
virtual void SetDrawnTextColour(const wxColour& colour);
virtual void SetDrawnBackgroundColour(const wxColour& colour);
virtual void SetDrawnBackgroundMode(int mode);
// Set the width/height according to the shapes in the metafile.
// Call this after drawing into the shape.
inline void CalculateSize() { m_metafiles[m_currentAngle].CalculateSize(this); }
inline void DrawAtAngle(int angle) { m_currentAngle = angle; };
inline int GetAngle() const { return m_currentAngle; }
// Implementation
protected:
// Which metafile do we use now? Based on current rotation and validity
// of metafiles.
int DetermineMetaFile(double rotation);
private:
// One metafile for each 90 degree rotation (or just a single one).
wxPseudoMetaFile m_metafiles[4];
// Don't save all wxDrawnShape metafiles to file: sometimes
// we take the metafile data from a symbol library.
bool m_saveToFile;
// Which angle are we using/drawing into?
int m_currentAngle;
};
#endif
// _DRAWN_H_