114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: misc.h
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// Purpose: Miscellaneous utilities for OGL
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// Author: Julian Smart
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// Modified by:
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// Created: 12/07/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _OGL_MISC_H_
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#define _OGL_MISC_H_
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#ifdef __GNUG__
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#pragma interface "misc.h"
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#endif
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// List to use when copying objects; may need to associate elements of new objects
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// with elements of old objects, e.g. when copying constraint.s
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extern wxList oglObjectCopyMapping;
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/*
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* TEXT FORMATTING FUNCTIONS
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*
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*/
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// Centres the given list of wxShapeTextLine strings in the given box
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// (changing the positions in situ). Doesn't actually draw into the DC.
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void oglCentreText(wxDC& dc, wxList *text, double m_xpos, double m_ypos,
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double width, double height,
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int formatMode = FORMAT_CENTRE_HORIZ | FORMAT_CENTRE_VERT);
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// Given a string, returns a list of strings that fit within the given
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// width of box. Height is ignored.
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wxStringList *oglFormatText(wxDC& dc, const wxString& text, double width, double height, int formatMode = 0);
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// Centres the list of wxShapeTextLine strings, doesn't clip.
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// Doesn't actually draw into the DC.
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void oglCentreTextNoClipping(wxDC& dc, wxList *text_list,
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double m_xpos, double m_ypos, double width, double height);
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// Gets the maximum width and height of the given list of wxShapeTextLines.
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void oglGetCentredTextExtent(wxDC& dc, wxList *text_list,
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double m_xpos, double m_ypos, double width, double height,
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double *actual_width, double *actual_height);
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// Actually draw the preformatted list of wxShapeTextLines.
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void oglDrawFormattedText(wxDC& context, wxList *text_list,
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double m_xpos, double m_ypos, double width, double height,
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int formatMode = FORMAT_CENTRE_HORIZ | FORMAT_CENTRE_VERT);
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// Give it a list of points, finds the centre.
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void oglFindPolylineCentroid(wxList *points, double *x, double *y);
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void oglCheckLineIntersection(double x1, double y1, double x2, double y2,
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double x3, double y3, double x4, double y4,
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double *ratio1, double *ratio2);
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void oglFindEndForPolyline(double n, double xvec[], double yvec[],
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double x1, double y1, double x2, double y2, double *x3, double *y3);
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void oglFindEndForBox(double width, double height,
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double x1, double y1, // Centre of box (possibly)
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double x2, double y2, // other end of line
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double *x3, double *y3); // End on box edge
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void oglFindEndForCircle(double radius,
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double x1, double y1, // Centre of circle
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double x2, double y2, // Other end of line
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double *x3, double *y3);
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void oglGetArrowPoints(double x1, double y1, double x2, double y2,
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double length, double width,
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double *tip_x, double *tip_y,
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double *side1_x, double *side1_y,
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double *side2_x, double *side2_y);
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/*
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* Given an ellipse and endpoints of a line, returns the point at which
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* the line touches the ellipse in values x4, y4.
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* This function assumes that the centre of the ellipse is at x1, y1, and the
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* ellipse has a width of a1 and a height of b1. It also assumes you are
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* wanting to draw an arc FROM point x2, y2 TOWARDS point x3, y3.
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* This function calculates the x,y coordinates of the intersection point of
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* the arc with the ellipse.
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* Author: Ian Harrison
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*/
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void oglDrawArcToEllipse(double x1, double y1, double a1, double b1, double x2, double y2, double x3, double y3,
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double *x4, double *y4);
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bool oglRoughlyEqual(double val1, double val2, double tol = 0.00001);
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extern wxFont* g_oglNormalFont;
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extern wxPen* g_oglBlackPen;
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extern wxPen* g_oglWhiteBackgroundPen;
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extern wxPen* g_oglTransparentPen;
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extern wxBrush* g_oglWhiteBackgroundBrush;
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extern wxPen* g_oglBlackForegroundPen;
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extern wxCursor* g_oglBullseyeCursor;
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extern wxFont* oglMatchFont(int point_size);
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extern wxString oglColourToHex(const wxColour& colour);
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extern wxColour oglHexToColour(const wxString& hex);
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extern void oglDecToHex(unsigned int dec, char *buf);
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extern unsigned int oglHexToDec(char* buf);
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#endif
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// _OGL_MISC_H_
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