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edit
Changes
→Define the Application
</pre>
*The screen is saved between color choices by saving the manager in a temp variable, deleting it from the screen, then adding the gridFieldManager holding the color choices, waiting for user interaction, then deleting and re-adding the drawing screen.
*Trackball event:
<pre>
int top = 0, bottom = (displayHeight-(grid.getHeight()-(bitmap.getHeight()+12)))/9,
left = 0, right = displayWidth/6;
if(dx > 0)
tbX += dx*10;
else
tbX += dx*10;
if(dy > 0)
tbY += dy*10;
else
tbY += dy*10;
if(added){
for(int i = 0;i < colours.length;i++){
if(tbX > left && tbX < right && tbY > top && tbY < bottom){
grid.getFieldAtIndex(0).setBackground(BackgroundFactory.createSolidBackground(colours[i]));
currentColour = colours[i];
}
if((i+1)%6 == 0){
top = bottom;
bottom +=(displayHeight-(grid.getHeight()-(bitmap.getHeight()+12)))/9;
left = 0;
right = displayWidth/6;
}
else{
left = right;
right += displayWidth/6;
}
}
}
Bitmap bm = Bitmap.getBitmapResource("square.png");
BitmapField bmf = new BitmapField(bm){
protected void paint(Graphics g){
}
};
doMenuEvent(menuEvent(tbX, tbY));
bmf.setPadding(0, 0, height, width);
if(draw && !added){
drawsy(bmf, tbX, tbY);
}
else{
if(bmf2 != null){
screen.delete(bmf2);
drawsy(bmf, tbX, tbY);
bmf2 = bmf;
}
else{
drawsy(bmf, tbX, tbY);
bmf2 = bmf;
}
}
return true;
</pre>
*Touch event:
<pre>
final int touchX = message.getX(1);
final int touchY = message.getY(1);
int top = 0, bottom = (displayHeight-(grid.getHeight()-(bitmap.getHeight()+12)))/9,
left = 0, right = displayWidth/6;
if(added){
for(int i = 0;i < colours.length;i++){
if(touchX > left && touchX < right && touchY > top && touchY < bottom){
grid.getFieldAtIndex(0).setBackground(BackgroundFactory.createSolidBackground(colours[i]));
currentColour = colours[i];
}
if((i+1)%6 == 0){
top = bottom;
bottom +=(displayHeight-(grid.getHeight()-(bitmap.getHeight()+12)))/9;
left = 0;
right = displayWidth/6;
}
else{
left = right;
right += displayWidth/6;
}
}
}
Bitmap bm = Bitmap.getBitmapResource("square.png");
BitmapField bmf = new BitmapField(bm){
protected void paint(Graphics g){
}
};
doMenuEvent(menuEvent(touchX, touchY));
if(!added){
bmf.setPadding(0, 0, height, width);
drawsy(bmf, touchX, touchY);
}
return true;
</re>
*Clearing the screen is simply deleting all the fields in the manager
*Resizing the brush is done by simply dividing our original bitmap size(or multiplying).
