contrib/samples/ogl/studio/symbols.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        symbols.cpp
   3 // Purpose:     Implements the Studio symbol database
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20 #include <wx/wx.h>
  21 #endif
  22
  23 #include <wx/ogl/ogl.h> // base header of OGL, includes and adjusts wx/deprecated/setup.h
  24
  25 #include "studio.h"
  26 #include "doc.h"
  27 #include "shapes.h"
  28 #include "view.h"
  29 #include "symbols.h"
  30
  31 /*
  32  * csSymbol
  33  * Represents information about a symbol.
  34  */
  35
  36 csSymbol::csSymbol(const wxString& name, wxShape* shape)
  37 {
  38     m_name = name;
  39     m_shape = shape;
  40     m_toolId = 0;
  41 }
  42
  43 csSymbol::~csSymbol()
  44 {
  45     delete m_shape;
  46 }
  47
  48 /*
  49  * A table of all possible shapes.
  50  * We can use this to construct a palette, etc.
  51  */
  52 csSymbolDatabase::csSymbolDatabase()
  53 {
  54     m_currentId = 800;
  55 }
  56
  57 csSymbolDatabase::~csSymbolDatabase()
  58 {
  59     ClearSymbols();
  60 }
  61
  62 void csSymbolDatabase::AddSymbol(csSymbol* symbol)
  63 {
  64     symbol->SetToolId(m_currentId);
  65     m_symbols.Append(symbol);
  66
  67     m_currentId ++;
  68 }
  69
  70 void csSymbolDatabase::ClearSymbols()
  71 {
  72     wxObjectList::compatibility_iterator node = m_symbols.GetFirst();
  73     while (node)
  74     {
  75         csSymbol* symbol = (csSymbol*) node->GetData();
  76         delete symbol;
  77
  78         node = node->GetNext();
  79     }
  80     m_symbols.Clear();
  81 }
  82
  83 csSymbol* csSymbolDatabase::FindSymbol(const wxString& name) const
  84 {
  85     wxObjectList::compatibility_iterator node = m_symbols.GetFirst();
  86     while (node)
  87     {
  88         csSymbol* symbol = (csSymbol*) node->GetData();
  89         if (symbol->GetName() == name)
  90             return symbol;
  91
  92         node = node->GetNext();
  93     }
  94     return NULL;
  95 }
  96
  97 csSymbol* csSymbolDatabase::FindSymbol(int toolId) const
  98 {
  99     wxObjectList::compatibility_iterator node = m_symbols.GetFirst();
 100     while (node)
 101     {
 102         csSymbol* symbol = (csSymbol*) node->GetData();
 103         if (symbol->GetToolId() == toolId)
 104             return symbol;
 105
 106         node = node->GetNext();
 107     }
 108     return NULL;
 109 }
 110
 111 // Add symbols to database
 112 void csApp::InitSymbols()
 113 {
 114     m_symbolDatabase = new csSymbolDatabase;
 115
 116     wxShape* shape = new csCircleShape();
 117     shape->AssignNewIds();
 118     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 119
 120     m_symbolDatabase->AddSymbol(new csSymbol(_T("Circle"), shape));
 121
 122     shape = new csCircleShadowShape();
 123     shape->AssignNewIds();
 124     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 125
 126     m_symbolDatabase->AddSymbol(new csSymbol(_T("Circle shadow"), shape));
 127
 128     shape = new csThinRectangleShape();
 129     shape->AssignNewIds();
 130     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 131
 132     m_symbolDatabase->AddSymbol(new csSymbol(_T("Thin Rectangle"), shape));
 133
 134     shape = new csWideRectangleShape();
 135     shape->AssignNewIds();
 136     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 137
 138     m_symbolDatabase->AddSymbol(new csSymbol(_T("Wide Rectangle"), shape));
 139
 140     shape = new csSemiCircleShape();
 141     shape->AssignNewIds();
 142     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 143
 144     m_symbolDatabase->AddSymbol(new csSymbol(_T("SemiCircle"), shape));
 145
 146     shape = new csTriangleShape();
 147     shape->AssignNewIds();
 148     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 149
 150     m_symbolDatabase->AddSymbol(new csSymbol(_T("Triangle"), shape));
 151
 152     shape = new csOctagonShape();
 153     shape->AssignNewIds();
 154     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 155
 156     m_symbolDatabase->AddSymbol(new csSymbol(_T("Octagon"), shape));
 157
 158     shape = new csGroupShape();
 159     shape->AssignNewIds();
 160     shape->SetEventHandler(new csEvtHandler(shape, shape, wxEmptyString));
 161
 162     m_symbolDatabase->AddSymbol(new csSymbol(_T("Group"), shape));
 163 }
 164
 165 wxBitmap* csSymbolDatabase::CreateToolBitmap(csSymbol* symbol, const wxSize& toolSize)
 166 {
 167     symbol->GetShape()->Recompute();
 168
 169     wxBitmap *newBitmap = new wxBitmap(toolSize.x, toolSize.y);
 170
 171     // Test code
 172 #if 0
 173     wxMemoryDC memDC;
 174     memDC.SelectObject(*newBitmap);
 175     memDC.SetPen(* wxBLACK_PEN);
 176     memDC.SetBrush(* wxWHITE_BRUSH);
 177     memDC.SetBackground(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE), wxSOLID));
 178     memDC.SetLogicalFunction(wxCOPY);
 179     memDC.Clear();
 180
 181     memDC.DrawLine(0, 0, toolSize.x, toolSize.y);
 182     memDC.DrawLine(0, toolSize.y, toolSize.x, 0);
 183
 184     memDC.SelectObject(wxNullBitmap);
 185 #endif
 186
 187 #if 1
 188     wxMemoryDC memDC;
 189
 190     double height, width, maxSize;
 191     symbol->GetShape()->GetBoundingBoxMax(&width, &height);
 192
 193     if (height > width)
 194         maxSize = height;
 195     else
 196         maxSize = width;
 197
 198     double borderMargin = 4.0;
 199     double scaleFactor = (double)(toolSize.x / (maxSize + 2*borderMargin));
 200     double centreX = (double)((toolSize.x/scaleFactor)/2.0)-1;
 201     double centreY = centreX;
 202
 203     memDC.SelectObject(*newBitmap);
 204
 205     memDC.SetUserScale(scaleFactor, scaleFactor);
 206
 207     memDC.SetBackground(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE), wxSOLID));
 208     memDC.Clear();
 209
 210     symbol->GetShape()->Show(true);
 211     symbol->GetShape()->Move(memDC, centreX, centreY);
 212
 213     memDC.SelectObject(wxNullBitmap);
 214 #endif
 215
 216     return newBitmap;
 217 }
 218