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Overview
Comment:Add drawing ellipses into picture editor
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 38ac4dd10f9534e42b5958b9834a124caeab4ff1
User & Date: user on 2021-01-18 23:27:52
Other Links: manifest | tags
Context
2021-01-19
02:43
Implement import/export in the picture editor. check-in: a5ef9613c5 user: user tags: trunk
2021-01-18
23:27
Add drawing ellipses into picture editor check-in: 38ac4dd10f user: user tags: trunk
06:04
Add rotation and add/delete pictures commands into the picture editor. Also correct the maximum number of picture variants. check-in: bf1d25458b user: user tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified picedit.c from [665be25639] to [14fb1e6db2].

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static void fill_circle(Uint8*p,Uint8 s,Uint8 x0,Uint8 y0,Uint32 r,Uint8 c) {
  int x,y;
  for(y=0;y<s;y++) for(x=0;x<s;x++) {
    if((x-x0)*(x-x0)+(y-y0)*(y-y0)<=r) p[y*s+x]=c;
  }
}








































static inline void edit_picture_1(Picture**pict,const char*name) {
  static const Uint8 shade[64]=
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"








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static void fill_circle(Uint8*p,Uint8 s,Uint8 x0,Uint8 y0,Uint32 r,Uint8 c) {
  int x,y;
  for(y=0;y<s;y++) for(x=0;x<s;x++) {
    if((x-x0)*(x-x0)+(y-y0)*(y-y0)<=r) p[y*s+x]=c;
  }
}

static void draw_ellipse(Uint8*p,Uint8 s,Uint8 x0,Uint8 y0,Uint8 x1,Uint8 y1,Uint8 c) {
  double cx,cy,rx,ry,v;
  int x,y;
  if(x1<x0) x=x1,x1=x0,x0=x;
  if(y1<y0) y=y1,y1=y0,y0=y;
  cx=0.5*(x1+x0);
  cy=0.5*(y1+y0);
  rx=0.5*(x1-x0);
  ry=0.5*(y1-y0);
  for(y=y0;y<=y1;y++) {
    v=(y-cy)/ry; v*=v;
    if(v>1.0) continue;
    v=rx*sqrt(1.0-v);
    x=round(cx-v); if(x>=0 && x<s) p[y*s+x]=c;
    x=round(cx+v); if(x>=0 && x<s) p[y*s+x]=c;
  }
  for(x=x0;x<=x1;x++) {
    v=(x-cx)/rx; v*=v;
    if(v>1.0) continue;
    v=ry*sqrt(1.0-v);
    y=round(cy-v); if(y>=0 && y<s) p[y*s+x]=c;
    y=round(cy+v); if(y>=0 && y<s) p[y*s+x]=c;
  }
}

static void fill_ellipse(Uint8*p,Uint8 s,Uint8 x0,Uint8 y0,Uint8 x1,Uint8 y1,Uint8 c) {
  double cx,cy,rx,ry;
  int x,y;
  if(x1<x0) x=x1,x1=x0,x0=x;
  if(y1<y0) y=y1,y1=y0,y0=y;
  cx=0.5*(x1+x0);
  cy=0.5*(y1+y0);
  rx=0.5*(x1-x0);
  ry=0.5*(y1-y0);
  for(y=y0;y<=y1;y++) for(x=x0;x<=x1;x++) {
    if(pow((x-cx)/rx,2.0)+pow((y-cy)/ry,2.0)<=1.0) p[y*s+x]=c;
  }
}

static inline void edit_picture_1(Picture**pict,const char*name) {
  static const Uint8 shade[64]=
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
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            case 2: // Pick
              i=pict[sel]->data[(y+1)*pict[sel]->size+x];
              goto pick;
            case 3: // Line
              if((i&2) && xx!=-1) draw_line(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,xx,yy,cc);
              if(i&1) xx=x,yy=y;
              break;
            case 4: // Rect
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                p=pict[sel]->data+(j=pict[sel]->size);
                if(xx<x) i=x,x=xx,xx=i;
                if(yy<y) i=y,y=yy,yy=i;
                memset(p+y*j+x,cc,xx+1-x);
                memset(p+yy*j+x,cc,xx+1-x);
                while(y<yy) p[y*j+x]=p[y*j+xx]=cc,y++;
                xx=yy=-1;
              }
              break;
            case 5: // Fillrect
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                p=pict[sel]->data+(j=pict[sel]->size);
                if(xx<x) i=x,x=xx,xx=i;
                if(yy<y) i=y,y=yy,yy=i;
                while(y<yy) memset(p+y*j+x,cc,xx+1-x),y++;
                xx=yy=-1;
              }
              break;
            case 6: // Circle
              if(i==1) {
                xx=x; yy=y;
              } else if(i==2) {
                draw_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              } else if(i==3) {
                draw_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,xx,yy,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              }
              break;
            case 7: // Fillcircle
              if(i==1) {
                xx=x; yy=y;
              } else if(i==2) {
                fill_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              } else if(i==3) {
                fill_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,xx,yy,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              }















              break;
          }
          goto redraw;
        }
        break;
      case SDL_KEYDOWN:
        switch(ev.key.keysym.sym) {








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            case 2: // Pick
              i=pict[sel]->data[(y+1)*pict[sel]->size+x];
              goto pick;
            case 3: // Line
              if((i&2) && xx!=-1) draw_line(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,xx,yy,cc);
              if(i&1) xx=x,yy=y;
              break;
            case 4: // Rectangle
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                p=pict[sel]->data+(j=pict[sel]->size);
                if(xx<x) i=x,x=xx,xx=i;
                if(yy<y) i=y,y=yy,yy=i;
                memset(p+y*j+x,cc,xx+1-x);
                memset(p+yy*j+x,cc,xx+1-x);
                while(y<yy) p[y*j+x]=p[y*j+xx]=cc,y++;
                xx=yy=-1;
              }
              break;
            case 5: // Fill rectangle
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                p=pict[sel]->data+(j=pict[sel]->size);
                if(xx<x) i=x,x=xx,xx=i;
                if(yy<y) i=y,y=yy,yy=i;
                while(y<yy) memset(p+y*j+x,cc,xx+1-x),y++;
                xx=yy=-1;
              }
              break;
            case 6: // Circle
              if(i==1) {
                xx=x; yy=y;
              } else if(i==2) {
                draw_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              } else if(i==3) {
                draw_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,xx,yy,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              }
              break;
            case 7: // Fill circle
              if(i==1) {
                xx=x; yy=y;
              } else if(i==2) {
                fill_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              } else if(i==3) {
                fill_circle(pict[sel]->data+pict[sel]->size,pict[sel]->size,xx,yy,(x-xx)*(x-xx)+(y-yy)*(y-yy),cc);
              }
              break;
            case 8: // Ellipse
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                draw_ellipse(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,xx,yy,cc);
              }
              break;
            case 9: // Fill ellipse
              if(i==1) {
                xx=x; yy=y;
              } else if(xx!=-1) {
                fill_ellipse(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,xx,yy,cc);
                draw_ellipse(pict[sel]->data+pict[sel]->size,pict[sel]->size,x,y,xx,yy,cc);
              }
              break;
          }
          goto redraw;
        }
        break;
      case SDL_KEYDOWN:
        switch(ev.key.keysym.sym) {
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Modified picedit.doc from [47704e2e89] to [a51d4def0a].

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Filled circle (I)
  Click the left button at the centre of the circle and the right button
  at the radius, or you can click the left button at the radius and the
  middle button at the centre.

Hollow ellipse (E)
  


Filled ellipse (S)
  










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Filled circle (I)
  Click the left button at the centre of the circle and the right button
  at the radius, or you can click the left button at the radius and the
  middle button at the centre.

Hollow ellipse (E)
  Click the left button on one corner of the bounding rectangle of the
  ellipse, and then click the middle or right button on the other side.

Filled ellipse (S)
  Click the left button on one corner of the bounding rectangle of the
  ellipse, and then click the middle or right button on the other side.

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