add paint(1)

diff --git a/sys/src/cmd/paint.c b/sys/src/cmd/paint.c
new file mode 100644 (file)
index 0000000..dee0f07
--- /dev/null
+++ b/sys/src/cmd/paint.c
@@ -0,0 +1,83 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+#include <event.h>
+
+void
+eresized(int)
+{
+       if(getwindow(display, Refnone) < 0)
+               sysfatal("resize failed");
+}
+
+/* stolen from mothra */
+void
+screendump(char *name, int full)
+{
+       Image *b;
+       int fd;
+
+       fd=create(name, OWRITE|OTRUNC, 0666);
+       if(fd==-1)
+               sysfatal("can't create file");
+       if(full){
+               writeimage(fd, screen, 0);
+       } else {
+               if((b=allocimage(display, screen->r, screen->chan, 0, DNofill)) == nil){
+                       close(fd);
+                       sysfatal("can't allocate image");
+               }
+               draw(b, b->r, screen, 0, b->r.min);
+               writeimage(fd, b, 0);
+               freeimage(b);
+       }
+       close(fd);
+}
+
+void
+main()
+{
+       Event e;
+       Point last;
+       int haslast;
+       char file[128];
+       
+       haslast = 0;
+       initdraw(0, 0, 0);
+       einit(Emouse | Ekeyboard);
+       draw(screen, screen->r, display->white, 0, ZP);
+       flushimage(display, 1);
+       while(1){
+               switch(event(&e)){
+               case Emouse:
+                       if(e.mouse.buttons & 1){
+                               if(haslast)
+                                       line(screen, last, e.mouse.xy, Enddisc, Enddisc, 5, display->black, ZP);
+                               else
+                                       fillellipse(screen, e.mouse.xy, 5, 5, display->black, ZP);
+                               
+                               last = e.mouse.xy;
+                               haslast = 1;
+                               flushimage(display, 1);
+                       } else
+                               haslast = 0;
+                       if(e.mouse.buttons & 4){
+                               fillellipse(screen, e.mouse.xy, 5, 5, display->white, ZP);
+                               flushimage(display, 1);
+                       }
+                       break;
+               case Ekeyboard:
+                       if(e.kbdc == 'q')
+                               exits(nil);
+                       if(e.kbdc == 'c')
+                               draw(screen, screen->r, display->white, 0, ZP);
+                       if(e.kbdc == 's'){
+                               snprint(file, sizeof(file), "out.bit");
+                               if(eenter("Save to", file, sizeof(file), &e.mouse) <= 0)
+                                       break;
+                               screendump(file, 0);
+                       }
+                       break;
+               }
+       }
+}