Example usage for java.awt Graphics setClip

Introduction

In this page you can find the example usage for java.awt Graphics setClip.

Prototype

public abstract void setClip(Shape clip);

Source Link

Document

Sets the current clipping area to an arbitrary clip shape.

Usage

From source file:com.jcraft.weirdx.Draw.java

@SuppressWarnings("unused")
static void reqPolyFillRectangle(Client c, XDrawable d, GC gc) throws IOException {
    int n = c.length;
    //int foo;// www  . j av a  2 s .  c  o m

    Graphics graphics = d.getGraphics(gc, GC.GCFunction | GC.GCSubwindowMode);
    if (graphics == null) {
        c.client.readPad(n * 4);
        return;
    }

    if (gc.clip_mask != null && gc.clip_mask instanceof ClipPixmap && (d instanceof XPixmap)
            && ((XPixmap) d).data != null) {
        XPixmap p = (XPixmap) d;
        byte[] data = p.data;

        XPixmap cpixmap = (XPixmap) (gc.clip_mask.getMask());

        short x, y;
        int ww, hh;

        byte f = (byte) gc.fgPixel;

        while (n != 0) {
            x = (short) c.client.readShort();
            y = (short) c.client.readShort();
            ww = c.client.readShort();
            hh = c.client.readShort();
            n -= 2;

            if (x < 0) {
                ww += x;
                x = 0;
            }
            if (y < 0) {
                hh += y;
                y = 0;
            }
            if (d.width <= x || d.height <= y)
                continue;
            if (ww <= 0 || hh <= 0)
                continue;
            //      if((x+ww)<=0 || (y+hh)<=0) continue;

            if (ww > cpixmap.width)
                ww = cpixmap.width;
            if (hh > cpixmap.height)
                hh = cpixmap.height;
            if (ww > d.width)
                ww = d.width;
            if (hh > d.height)
                hh = d.height;
            for (int i = 0; i < hh; i++) {
                for (int j = 0; j < ww; j++) {
                    if (p.data[(i + y) * p.width + x + j] == 0) {
                        p.data[(i + y) * p.width + x + j] = f;
                    }
                }
            }
        }
        return;
    }

    /*
        if(gc.clip_mask!=null &&
           (d instanceof Pixmap) &&
           gc.clip_mask.width==d.width &&
           gc.clip_mask.height==d.height &&
           ((Pixmap)d).data!=null){
            
          Pixmap p=(Pixmap)d;
            
    //      for(int i=0;i<p.height;i++){
    //   for(int j=0;j<p.width;j++){
    //     System.out.print(p.data[i*p.width+j]+" ");
    //   }
    //   System.out.println("");
    //      }
            
          byte f=(byte)gc.fgPixel;
          for(int i=0;i<gc.clip_mask.height;i++){
       for(int j=0;j<gc.clip_mask.width;j++){
         if(p.data[i*gc.clip_mask.width+j]==0){
           p.data[i*gc.clip_mask.width+j]=f;
         }
       }
          }
            
    //      for(int i=0;i<((Pixmap)d).height;i++){
    //   for(int j=0;j<((Pixmap)d).width;j++){
    //     System.out.print(((Pixmap)d).data[i*((Pixmap)d).width+j]+" ");
    //   }
    //   System.out.println("");
    //      }
            
          while(n!=0){
       c.client.readPad(8); n-=2;
          }
          return;
        }
    */

    if (gc.clip_mask != null && gc.clip_mask instanceof ClipRectangles) {
        java.awt.Rectangle rec = (Rectangle) (gc.clip_mask.getMask());
        if (rec == null) {
            while (n > 0) {
                c.client.readPad(8);
                n -= 2;
            }
            return;
        }
    }

    XPixmap p = null;
    if (((gc.attr & GC.fillStyle) == GC.FillOpaqueStippled) || ((gc.attr & GC.fillStyle) == GC.FillStippled)) {
        p = gc.stipple;
    }
    if (((gc.attr & GC.fillStyle) == GC.FillTiled)) {
        p = gc.tile.pixmap;
    }

    short x, y;
    int ww, hh;

    int sx = d.width;
    int sy = d.height;
    int lx = 0;
    int ly = 0;

    while (n != 0) {
        x = (short) c.client.readShort();
        y = (short) c.client.readShort();
        ww = c.client.readShort();
        hh = c.client.readShort();

        n -= 2;

        if (x < 0) {
            ww += x;
            x = 0;
        }
        if (y < 0) {
            hh += y;
            y = 0;
        }
        if (d.width <= x || d.height <= y)
            continue;
        if (ww <= 0 || hh <= 0)
            continue;

        if (x < sx)
            sx = x;
        ;
        if (lx < x + ww)
            lx = x + ww;
        if (y < sy)
            sy = y;
        if (ly < y + hh)
            ly = y + hh;

        if (((gc.attr & GC.fillStyle) == GC.FillOpaqueStippled) || ((gc.attr & GC.fillStyle) == GC.FillStippled)
                || ((gc.attr & GC.fillStyle) == GC.FillTiled)) {

            java.awt.Shape tmp = null;
            ww += x;
            hh += y;
            if ((p.width > ww - x) || (p.height > hh - y)) {
                tmp = graphics.getClip();
                graphics.clipRect(x, y, ww - x, hh - y);
            }
            graphics.drawImage(p.img, x, y, Screen.screen[0].root.ddxwindow);
            if (tmp != null)
                graphics.setClip(tmp);
            for (int i = x + p.width; i < ww; i += p.width) {
                int www = p.width;
                int hhh = p.height;
                if (i + www > ww)
                    www = ww - i;
                if (y + hhh >= hh)
                    hhh = hh - y;
                graphics.copyArea(x, y, www, hhh, i - x, 0);
            }
            for (int j = y + p.height; j < hh; j += p.height) {
                int hhh = p.height;
                if (j + hhh >= hh)
                    hhh = hh - j;
                graphics.copyArea(x, y, ww - x, hhh, 0, j - y);
            }
        } else {
            graphics.fillRect(x, y, ww, hh);
        }
    }

    if (sx < 0)
        sx = 0;
    if (sy < 0)
        sy = 0;
    if (d instanceof XWindow) {
        ((XWindow) d).draw(sx, sy, lx - sx + 2, ly - sy + 2);
    }

    if (gc.function == GC.GXxor || gc.function == GC.GXinvert) {
        graphics.setPaintMode();
    }

    if (gc.clip_mask != null && gc.clip_mask instanceof ClipRectangles) {
        d.restoreClip();
    }
}

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