fish/surf/mouse.c

   1 #include "scrnio.ih"
   2 #ifdef MANX
   3 #include <functions.h>
   4 #endif
   5 #include "scrnio.h"
   6 #include "mytypes.h"
   7
   8 #include "bezpt.h"
   9 #include "control.h"
  10
  11
  12 static bool buttondown;  /* is left button down */
  13 static short mousex, mousey;
  14 static enum BezPtEnum selbezpt;  /* selected bez pt */
  15
  16 void DrawBox( int, int, int);
  17 void DrawSqr( int, int, int);
  18 void EditStartPt(int, int);
  19 void EditEndPt(int, int);
  20
  21 void HandleTicks(mesg)
  22 struct IntuiMessage *mesg;
  23 {
  24     int x, y;
  25
  26     x = CntrX(mesg->MouseX);
  27     y = CntrY(mesg->MouseY);
  28
  29     if(!buttondown || (mousex == x && mousey == y )){
  30         return;
  31     }
  32
  33     mousex = x;
  34     mousey = y;
  35
  36     switch( CurMode ) {
  37
  38     case DRAWPOLY:
  39          EditBezPt( mousex, mousey);
  40          break;
  41
  42     case FITBEZIER:
  43         switch(selbezpt) {
  44         case BPEStartPt:
  45             EditStartPt(mousex, mousey);
  46             break;
  47
  48         case BPEEndPt:
  49             EditEndPt(mousex, mousey);
  50             break;
  51
  52         case BPECntrlPt1:
  53             EditControl0(mousex, mousey);
  54             break;
  55
  56         case BPECntrlPt2:
  57             EditControl1(mousex, mousey);
  58             break;
  59         }
  60         break;
  61
  62     default:
  63         break;
  64     }
  65 }
  66
  67
  68
  69 void HandleMButtons(mesg)
  70 struct IntuiMessage *mesg;
  71 {
  72
  73     long startdist, enddist, leftdist, rightdist;
  74     long tx, ty;
  75
  76     mousex = CntrX(mesg->MouseX);
  77     mousey = CntrY(mesg->MouseY);
  78
  79     switch( mesg->Code) {
  80     case SELECTDOWN:
  81         buttondown = true;  /* down */
  82
  83         switch( CurMode ) {
  84         case DRAWPOLY:
  85             InitBezPt( mousex, mousey);
  86             if( GetNumSegs() == 0 ) {
  87                 InitBezPt( mousex, mousey );
  88             }
  89             break;
  90
  91         case FITBEZIER:
  92             tx = mousex - StartPtX(GetCurSeg());
  93             ty = mousey - StartPtY(GetCurSeg());
  94             startdist = tx * tx + ty * ty;
  95
  96             tx = mousex - EndPtX(GetCurSeg());
  97             ty = mousey - EndPtY(GetCurSeg());
  98             enddist = tx * tx + ty * ty;
  99
 100             tx = mousex - Cntrl1X(GetCurSeg());
 101             ty = mousey - Cntrl1Y(GetCurSeg());
 102             leftdist = tx * tx + ty * ty;
 103
 104             tx = mousex - Cntrl2X(GetCurSeg());
 105             ty = mousey - Cntrl2Y(GetCurSeg());
 106             rightdist = tx *tx + ty * ty;
 107
 108             if( leftdist <= rightdist &&
 109                  leftdist <= startdist &&
 110                  leftdist <= enddist ) {
 111                 selbezpt = BPECntrlPt1;
 112                 EditControl0( mousex, mousey );
 113                 }
 114             else if ( rightdist <= startdist &&
 115                     rightdist <= enddist ) {
 116                 selbezpt = BPECntrlPt2;
 117                 EditControl1( mousex, mousey );
 118                 }
 119             else if ( startdist <= enddist ) {
 120                 selbezpt = BPEStartPt;
 121                 EditStartPt(mousex, mousey);
 122             }
 123             else {
 124                 selbezpt = BPEEndPt;
 125                 EditEndPt(mousex, mousey);
 126             }
 127             break;
 128
 129         default:
 130             break;
 131         }
 132         break;
 133
 134
 135     case SELECTUP:
 136         buttondown = false; /* up */
 137         break;
 138
 139     case MENUUP:
 140         if( CurMode == FITBEZIER ) {
 141             DrawStartPt();
 142             DrawEndPt();
 143             DrawControl0();
 144             DrawControl1();
 145             NextSeg();
 146             DrawStartPt();
 147             DrawEndPt();
 148             DrawControl0();
 149             DrawControl1();
 150         }
 151         break;
 152
 153     default:
 154         break;
 155     }
 156 }