画布图形实例.docx

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画布图形实例.docx

画布图形实例

package;

import

import

import

import

import

import

publicclassGCCreation{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicGCCreation(){

Imageimage=newImage(display,"C:

/icons/");

Imageimage2=newImage(display,());

GCgc=newGC(image2);

);

(10,10,90,40);

();

CLabellabel=newCLabel(shell,;

(image);

(10,10,130,130);

CLabellabel2=newCLabel(shell,;

(image2);

(150,10,130,130);

();

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){

newGCCreation();

}

}

package;

importclassGCCreation{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicGCCreation(){

Imageimage=newImage(display,"C:

/icons/");

Imageimage2=newImage(display,());

GCgc=newGC(image2);

);

(10,10,90,40);

();

CLabellabel=newCLabel(shell,;

(image);

(10,10,130,130);

CLabellabel2=newCLabel(shell,;

(image2);

(150,10,130,130);

();

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){newGCCreation();

}

}

接下来请参看以下示例:

演示代码1:

viewplaincopytoclipboardprintpackage;

importimport

import

import

import

import

publicclassCanvasExample{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicCanvasExample(){

Canvascanvas=newCanvas(shell,;

(10,10,200,100);

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

10,180,80,10,10);

}

});

();

();

while(!

()){

if(!

()){

();

}

}

();

}

}

package;

importclassCanvasExample{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicCanvasExample(){

Canvascanvas=newCanvas(shell,;

(10,10,200,100);

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

10,180,80,10,10);

}

});

();

();

while(!

()){

if(!

()){

();

}

}

();

}

}

演示代码2:

(三角)

viewplaincopytoclipboardprint

package;

import

import

import

import

import

import

import

import

import

publicclassClipping{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicClipping(){

(newFillLayout());

finalCanvascanvas=newCanvas(shell,;

finalImageimage=newImage(display,"C:

/icons/");

(newPaintListener(){

Regionregion=newRegion();(newint[]{60,10,10,100,110,100});

0,0);

}

});

(200,140);

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){newClipping();

}

}

package;

importclassClipping{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicClipping(){

finalCanvascanvas=newCanvas(shell,;

finalImageimage=newImage(display,"C:

/icons/");

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Regionregion=newRegion();

(newint[]{60,10,10,100,110,100});

0,0);

}

});

(200,140);

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){

newClipping();

}

}

演示代码3:

(动态画布)

viewplaincopytoclipboardprint

package;

import

import

import

import

import

import

import

import

import

import

import

publicclassDoubleBuffer{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicDoubleBuffer(){

(newFillLayout());

finalCanvascanvas=newCanvas(shell,;

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Pointsize=();

intx1=(int)()*;

inty1=(int)()*

intx2=().width-x1-10,50);inty2=().height-y1-10,50);

y1,x2,y2,5,5);

(100,newRunnable(){

publicvoidrun(){

();

}

});

}

});

finalCanvasdoubleBufferedCanvas=newCanvas(shell,;

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Imageimage=(Image)("double-buffer-image");

if(image==null

||().width!

=().x

||().height!

=().y){

image=

newImage(

display,

().x,

().y);

("double-buffer-image",image);

}

GCimageGC=newGC(image);

RectangleimageSize=();

(0,0,+1,+1);

Pointsize=();

intx1=(int)()*;

inty1=(int)()*;

intx2=().width-x1-10,50);

inty2=().height-y1-10,50);

(x1,y1,x2,y2,5,5);

0,0);

();

(100,newRunnable(){

publicvoidrun(){

();

}

});

}

});

(300,200);

();

while(!

()){

if(!

()){

();

();

publicstaticvoidmain(String[]args){newDoubleBuffer();

}

}

package;

importclassDoubleBuffer{

Displaydisplay=newDisplay();Shellshell=newShell(display);publicDoubleBuffer(){

(newFillLayout());

finalCanvascanvas=newCanvas(shell,;

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Pointsize=();

intx1=(int)()*;

inty1=(int)()*;

intx2=().width-x1-10,50);

inty2=().height-y1-10,50);

y1,x2,y2,5,5);

(100,newRunnable(){

publicvoidrun(){

();

});

}

});

finalCanvasdoubleBufferedCanvas=newCanvas(shell,;

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Imageimage=(Image)("double-buffer-image");

if(image==null

||().width!

=().x

||().height!

=().y){

image=

newImage(

display,

().x,

().y);

("double-buffer-image",image);

}

GCimageGC=newGC(image);

Rectangle

imageSize=();

(0,0,+1,+1);

Pointsize=();

intx1=(int)()*;

inty1=(int)()*;

intx2=().width-x1-10,50);

inty2=().height-y1-10,50);

(x1,y1,x2,y2,5,5);

0,0);

();

(100,newRunnable(){publicvoidrun(){

();

}

});

}

});

(300,200);

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){

newDoubleBuffer();

}

}

演示代码4:

(图片)

viewplaincopytoclipboardprint

package;

import

import

import

import

import

import

import

import

import

import

import

import

publicclassDrawImages{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicDrawImages(){

(newFillLayout());

Canvascanvas=newCanvas(shell,;

finalImageimage=newImage(display,"C:

/icons/");

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

10,10);

0,0,100,100,200,10,200,50);

});

(430,200);

();

captureControl(canvas,"");

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidcaptureControl(Controlcontrol,Stringfile){

GCgc=newGC(control);

Imageimage=newImage(),().x,().y);

(image,0,0);

ImageLoaderloader=newImageLoader();

=newImageData[]{()};

(file,;

();

}

publicstaticvoidmain(String[]args){

newDrawImages();

}

}

package;

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicDrawImages(){

(newFillLayout());

Canvascanvas=newCanvas(shell,;

finalImageimage=newImage(display,"C:

/icons/");

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

10,10);

0,0,100,100,200,10,200,50);

}

});

(430,200);

();

captureControl(canvas,"");

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidcaptureControl(Controlcontrol,Stringfile){

GCgc=newGC(control);

Imageimage=newImage(),().x,().y);

(image,0,0);

ImageLoaderloader=newImageLoader();=newImageData[]{()};

(file,;

();

}

publicstaticvoidmain(String[]args){

newDrawImages();

}

}

演示代码5:

(画线)

viewplaincopytoclipboardprintpackage;

import

import

import

import

import

import

import

publicclassDrawings{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicDrawings(){

(newFillLayout());

Canvascanvas=newCanvas(shell,;

);

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

"(default)",10,10);

"",10,30);

"",10,50);

"",10,70);

"",10,90);

"Linewidth=1(default)",10,120);

"Linewidth=3",10,140);

intstart=150;

15,start+200,15);

35,start+200,35);

55,start+200,55);

75,start+200,75);

95,start+200,95);

125,start+200,125);

145,start+200,145);

int[]points=newint[3*2];

points[0]=10;

points[1]=10;

points[2]=10;

points[3]=100;

points[4]=100;

points[5]=100;

10,200,100,0,-90);

60,220,60);

0,110,120);

}

});

();

();

while(!

()){

if(!

()){

();

}

();

}

publicstaticvoidmain(String[]args){

newDrawings();

}

}

package;

importclassDrawings{

Displaydisplay=newDisplay();

Shellshell=newShell(display);publicDrawings(){

(newFillLayout());

Canvascanvas=newCanvas(shell,;

);

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

"(default)",10,10);

"",10,30);

"",10,50);

"",10,70);

"",10,90);

"Linewidth=1(default)",10,120);

"Linewidth=3",10,140);

intstart=

150;

15,start+200,15);

35,start+200,35);

55,start+200,55);

75,start+200,75);

95,start+200,95);

125,start+200,125);

145,start+200,145);

int[]points

=newint[3*2];

points[0]=

10;

points[1]=

10;

points[2]=

10;

points[3]=

100;

points[4]=

100;

points[5]=

100;

10,200,100,0,-90);

60,220,60);

0,110,120);

}

});

();

while(!

()){

if(!

()){

();

}

}

();

}

publicstaticvoidmain(String[]args){newDrawings();

}

}

演示代码6:

(文本效果)viewplaincopytoclipboardprintpackage;

import

import

import

import

import

import

import

import

import

importimport

publicclassDrawText{

Displaydisplay=newDisplay();

Shellshell=newShell(display);

publicDrawText(){

(newFillLayout());

finalCanvascanvas=newCanvas(shell,;

finalImageimage=newImage(display,"C:

/icons/");

(newPaintListener(){

publicvoidpaintControl(PaintEvente){

Rectanglesize=();

0,0,,,0,0,().x,().y);

Fontfont=newFont(display,"Tahoma",18,;

Stringenglish="SWTrocks!

";

Stringchinese="\u4e2d\u6587\u6c49\u5b57\u6d4b\u8bd5";

10,10);

10,80,true);

Stringtext="Texttobedrawninthecenter";

PointtextSize=().x-/2,().y-/2);

});

(300,150);

();

while(!

()){

if(!

()){

()

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