List of usage examples for java.awt Graphics copyArea
public abstract void copyArea(int x, int y, int width, int height, int dx, int dy);
From source file:CopyAreaPerformance.java
protected void paintComponent(Graphics g) { long startTime = System.nanoTime(); // prevVX is set to -10000 when first enabled if (useCopyArea && prevVX > -9999) { // Most of this code determines the proper areas to copy and clip int scrollX = viewX - prevVX; int scrollY = viewY - prevVY; int copyFromY, copyFromX; int clipFromY, clipFromX; if (scrollX == 0) { // vertical scroll if (scrollY < 0) { copyFromY = 0;/*from w w w . ja v a 2 s . c o m*/ clipFromY = 0; } else { copyFromY = scrollY; clipFromY = getHeight() - scrollY; } // copy the old content, set the clip to the new area g.copyArea(0, copyFromY, getWidth(), getHeight() - Math.abs(scrollY), 0, -scrollY); g.setClip(0, clipFromY, getWidth(), Math.abs(scrollY)); } else { // horizontal scroll if (scrollX < 0) { copyFromX = 0; clipFromX = 0; } else { copyFromX = scrollX; clipFromX = getWidth() - scrollX; } // copy the old content, set the clip to the new area g.copyArea(copyFromX, 0, getWidth() - Math.abs(scrollX), getHeight(), -scrollX, 0); g.setClip(clipFromX, 0, Math.abs(scrollX), getHeight()); } } // Track previous view position for next scrolling operation prevVX = viewX; prevVY = viewY; // Get the clip in case we need it later Rectangle clipRect = g.getClip().getBounds(); int clipL = (int) (clipRect.getX()); int clipT = (int) (clipRect.getY()); int clipR = (int) (clipRect.getMaxX()); int clipB = (int) (clipRect.getMaxY()); g.setColor(Color.WHITE); g.fillRect(clipL, clipT, (int) clipRect.getWidth(), (int) clipRect.getHeight()); for (int column = 0; column < 256; ++column) { int x = column * (SMILEY_SIZE + PADDING) - viewX; if (useClip) { if (x > clipR || (x + (SMILEY_SIZE + PADDING)) < clipL) { // trivial reject; outside to the left or right continue; } } for (int row = 0; row < 256; ++row) { int y = row * (SMILEY_SIZE + PADDING) - viewY; if (useClip) { if (y > clipB || (y + (SMILEY_SIZE + PADDING)) < clipT) { // trivial reject; outside to the top or bottom continue; } } Color faceColor = new Color(column, row, 0); drawSmiley(g, faceColor, x, y); } } long stopTime = System.nanoTime(); System.out.println("Painted in " + ((stopTime - startTime) / 1000000) + " ms"); }
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;//from w w w . ja v a2s . co 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(); } }