I am adding multiple label fields in HFM, the text of which is coming from a String[]. Suppose there are 5 labels. I want the labels in Left, HCentre and Right of HFM. I m creating the labelfields like,
String[] labels = {------};
for( int i=0;labels.length;i++)
{
LabelField labelField = new LabelField(labels[i],Field.FOCUSABLE|Field.ACTION_INVOKE){
public void paint(Graphics g) {
-------
-------
}
protected void layout( int width, int height ){
super.layout(Display.getWidth()/3, getContentHeight());
setExtent(Display.getWidth()/3, getContentHeight());
//setPosition(Display.getWidth()/3,0);
};
HFM.add(labelField);
}
But it is not coming in the format I want.
How to do it? am I doing something wrong in Field's layout()? Please correct me if I am wrong.
I am attaching the screenshot of what I am getting now, but the alignment I want is 1st LabelField to the Left of HFM, 2nd at the Centre and 3rd at the Right of HFM, but only the thing is I am getting the LabelTexts from a String[].
According to your requirement , this Sample class will help you ..
import net.rim.device.api.ui.*;
public class JustifiedEvenlySpacedHorizontalFieldManager extends Manager
{
private static final int SYSTEM_STYLE_SHIFT = 32;
public JustifiedEvenlySpacedHorizontalFieldManager()
{
this( 0 );
}
public JustifiedEvenlySpacedHorizontalFieldManager( long style )
{
super( USE_ALL_WIDTH | style );
}
protected void sublayout( int width, int height )
{
int availableWidth = width;
int numFields = getFieldCount();
int maxPreferredWidth = 0;
int maxHeight = 0;
// There may be a few remaining pixels after dividing up the space
// we must split up the space between the first and last buttons
int fieldWidth = width / numFields;
int firstFieldExtra = 0;
int lastFieldExtra = 0;
int unUsedWidth = width - fieldWidth * numFields;
if( unUsedWidth > 0 ) {
firstFieldExtra = unUsedWidth / 2;
lastFieldExtra = unUsedWidth - firstFieldExtra;
}
int prevRightMargin = 0;
// Layout the child fields, and calculate the max height
for( int i = 0; i < numFields; i++ ) {
int nextLeftMargin = 0;
if( i < numFields - 1 ) {
Field nextField = getField( i );
nextLeftMargin = nextField.getMarginLeft();
}
Field currentField = getField( i );
int leftMargin = i == 0 ? currentField.getMarginLeft() : Math.max( prevRightMargin, currentField.getMarginLeft() ) / 2;
int rightMargin = i < numFields - 1 ? Math.max( nextLeftMargin, currentField.getMarginRight() ) / 2 : currentField.getMarginRight();
int currentVerticalMargins = currentField.getMarginTop() + currentField.getMarginBottom();
int currentHorizontalMargins = leftMargin + rightMargin;
int widthForButton = fieldWidth;
if( i == 0 ) {
widthForButton = fieldWidth + firstFieldExtra;
} else if( i == numFields -1 ) {
widthForButton = fieldWidth + lastFieldExtra;
}
layoutChild( currentField, widthForButton - currentHorizontalMargins, height - currentVerticalMargins );
maxHeight = Math.max( maxHeight, currentField.getHeight() + currentVerticalMargins );
prevRightMargin = rightMargin;
nextLeftMargin = 0;
}
// Now position the fields, respecting the Vertical style bits
int usedWidth = 0;
int y;
prevRightMargin = 0;
for( int i = 0; i < numFields; i++ ) {
Field currentField = getField( i );
int marginTop = currentField.getMarginTop();
int marginBottom = currentField.getMarginBottom();
int marginLeft = Math.max( currentField.getMarginLeft(), prevRightMargin );
int marginRight = currentField.getMarginRight();
switch( (int)( ( currentField.getStyle() & FIELD_VALIGN_MASK ) >> SYSTEM_STYLE_SHIFT ) ) {
case (int)( FIELD_BOTTOM >> SYSTEM_STYLE_SHIFT ):
y = maxHeight - currentField.getHeight() - currentField.getMarginBottom();
break;
case (int)( FIELD_VCENTER >> SYSTEM_STYLE_SHIFT ):
y = marginTop + ( maxHeight - marginTop - currentField.getHeight() - marginBottom ) >> 1;
break;
default:
y = marginTop;
}
setPositionChild( currentField, usedWidth + marginLeft, y );
usedWidth += currentField.getWidth() + marginLeft;
prevRightMargin = marginRight;
}
setExtent( width, maxHeight );
}
}
please have a look on this link :-
[http://supportforums.blackberry.com/t5/Java-Development/Implement-advanced-buttons-fields-and-managers/ta-p/488276][1]
you will get all kinds of Custom Components
Cheers ..!!!
[1]: http://supportforums.blackberry.com/t5/Java-Development/Implement-advanced-buttons-fields-and-managers/ta-p/488276
Related
I am using C# and write code for print contents for the Thermal ticket printer.
There are codes that people use for image print, and it indeed prints images, but something goes wrong. This is my code for image print class, it is widely using open source (I googled and found it, and people successfully implement this code to theirs without problem).
public static class ImagePrint
{
/// <summary>
/// Image convert to Byte Array
/// </summary>
/// <param name="LogoPath">Image Path</param>
/// <param name="printWidth">Image print Horizontal Length</param>
/// <returns></returns>
public static byte[] GetLogo(string LogoPath, int printWidth)
{
List<byte> byteList = new List<byte>();
if (!File.Exists(LogoPath))
return null;
BitmapData data = GetBitmapData(LogoPath, printWidth);
BitArray dots = data.Dots;
byte[] width = BitConverter.GetBytes(data.Width);
int offset = 0;
// Initialize Printer
byteList.Add(Convert.ToByte(Convert.ToChar(0x1B)));
byteList.Add(Convert.ToByte('#'));
// Line Spacing Adjust (24/180 inch)
byteList.Add(Convert.ToByte(Convert.ToChar(0x1B)));
byteList.Add(Convert.ToByte('3'));
byteList.Add((byte)24);
while (offset < data.Height)
{
byteList.Add(Convert.ToByte(Convert.ToChar(0x1B)));
byteList.Add(Convert.ToByte('*'));
byteList.Add((byte)33);
byteList.Add(width[0]);
byteList.Add(width[1]);
for (int x = 0; x < data.Width; ++x)
{
for (int k = 0; k < 3; ++k)
{
byte slice = 0;
for (int b = 0; b < 8; ++b)
{
int y = (((offset / 8) + k) * 8) + b;
int i = (y * data.Width) + x;
bool v = false;
if (i < dots.Length)
v = dots[i];
slice |= (byte)((v ? 1 : 0) << (7 - b));
}
byteList.Add(slice);
}
}
offset += 24;
byteList.Add(Convert.ToByte(0x0A));
}
// Return to normal line spacing (30/160 inch)
byteList.Add(Convert.ToByte(0x1B));
byteList.Add(Convert.ToByte('3'));
byteList.Add((byte)30);
return byteList.ToArray();
}
private static BitmapData GetBitmapData(string bmpFileName, int width)
{
using (var bitmap = (Bitmap)Bitmap.FromFile(bmpFileName))
{
var threshold = 127;
var index = 0;
double multiplier = width; // 이미지 width조정
double scale = (double)(multiplier / (double)bitmap.Width);
int xheight = (int)(bitmap.Height * scale);
int xwidth = (int)(bitmap.Width * scale);
var dimensions = xwidth * xheight;
var dots = new BitArray(dimensions);
for (var y = 0; y < xheight; y++)
{
for (var x = 0; x < xwidth; x++)
{
var _x = (int)(x / scale);
var _y = (int)(y / scale);
var color = bitmap.GetPixel(_x, _y);
var luminance = (int)(color.R * 0.3 + color.G * 0.59 + color.B * 0.11);
dots[index] = (luminance < threshold);
index++;
}
}
return new BitmapData()
{
Dots = dots,
Height = (int)(bitmap.Height * scale),
Width = (int)(bitmap.Width * scale)
};
}
}
private class BitmapData
{
public BitArray Dots
{
get;
set;
}
public int Height
{
get;
set;
}
public int Width
{
get;
set;
}
}
}
And I use this code like this on my code for image print:
string Image_File_Path = #"D:\TEST\TESTImage.bmp";
int Image_Size_I_Want = 100;
byte[] img = ImagePrint.GetLogo(Image_File_Path, Image_Size_I_Want);
port.Write(img, 0, img.Length);
You can see the result in the attached picture.
There are white space lines on the image.
This class automatically adds a line spacing command, but it seems does not work.
Please suggest any solution.
Using 'mike42/escpos-php' package in laravel
use Mike42\Escpos\Printer;
use Mike42\Escpos\EscposImage;
$tux = EscposImage::load(public_path()."\assets\img\path-to-file.jpg");
$printer->setJustification(Printer::JUSTIFY_CENTER);
$printer->bitImage($tux, 0);
$printer -> setJustification();
I tried to create Fill and Eraser Tools by GDI but this way is too slow for windows phone devices and work with large photos with this method is too hard for this divices.
I search for Alternative soulation for Image Processing and find Win2D and Sharpdx but not sure These Api can help me for create these tools.
this is Fill tool in winrtxamltoolkit
public static void FloodFill(this WriteableBitmap target, int x, int y, int outlineColor, int fillColor, byte maxdiff)
{
var width = target.PixelWidth;
var height = target.PixelHeight;
var queue = new List<Pnt>();
using (var context = target.GetBitmapContext(ReadWriteMode.ReadWrite))
{
queue.Add(new Pnt { X = x, Y = y });
while (queue.Count > 0)
{
var p = queue[queue.Count - 1];
queue.RemoveAt(queue.Count - 1);
if (p.X == -1) continue;
if (p.X == width) continue;
if (p.Y == -1) continue;
if (p.Y == height) continue;
if (context.Pixels[width * p.Y + p.X] == outlineColor) continue;
if (context.Pixels[width * p.Y + p.X] == fillColor) continue;
if (context.Pixels[width * p.Y + p.X].MaxDiff(outlineColor) > maxdiff)
{
context.Pixels[width * p.Y + p.X] = fillColor;
}
else
{
continue;
}
context.Pixels[width * p.Y + p.X] = fillColor;
queue.Add(new Pnt { X = p.X, Y = p.Y - 1 });
queue.Add(new Pnt { X = p.X + 1, Y = p.Y });
queue.Add(new Pnt { X = p.X, Y = p.Y + 1 });
queue.Add(new Pnt { X = p.X - 1, Y = p.Y });
}
target.Invalidate();
}
}
and this is Ereaser tool in WriteableBitmapEx
public static void FillEllipseCenteredTrsnceparent(this WriteableBitmap bmp, int xc, int yc, int xr, int yr, Color color)
{
using (BitmapContext context = bmp.GetBitmapContext())
{
Func<Color, int> toInt32 = c =>
{
var i = ((((c.A << 0x18) | (((c.R * c.A + 1) >> 8) << 0x10)) | (((c.G * c.A + 1) >> 8) << 8)) | ((c.B * c.A + 1) >> 8));
return i;
};
int[] pixels = context.Pixels;
int width = context.Width;
int height = context.Height;
if ((xr >= 1) && (yr >= 1))
{
int num3;
int num4;
int num5;
int num6;
int num7;
int num8;
int num9 = xr;
int num10 = 0;
int num11 = (xr * xr) << 1;
int num12 = (yr * yr) << 1;
int num13 = (yr * yr) * (1 - (xr << 1));
int num14 = xr * xr;
int num15 = 0;
int num16 = num12 * xr;
int num17 = 0;
//int sa = (color >> 0x18) & 0xff;
//int sr = (color >> 0x10) & 0xff;
//int sg = (color >> 8) & 0xff;
//int sb = color & 0xff;
//bool flag = !doAlphaBlend || (sa == 0xff);
while (num16 >= num17)
{
num5 = yc + num10;
num6 = yc - num10;
if (num5 < 0)
{
num5 = 0;
}
if (num5 >= height)
{
num5 = height - 1;
}
if (num6 < 0)
{
num6 = 0;
}
if (num6 >= height)
{
num6 = height - 1;
}
num3 = num5 * width;
num4 = num6 * width;
num8 = xc + num9;
num7 = xc - num9;
if (num8 < 0)
{
num8 = 0;
}
if (num8 >= width)
{
num8 = width - 1;
}
if (num7 < 0)
{
num7 = 0;
}
if (num7 >= width)
{
num7 = width - 1;
}
for (int i = num7; i <= num8; i++)
{
pixels[i + num3] = toInt32(color);
pixels[i + num4] = toInt32(color);
}
num10++;
num17 += num11;
num15 += num14;
num14 += num11;
if ((num13 + (num15 << 1)) > 0)
{
num9--;
num16 -= num12;
num15 += num13;
num13 += num12;
}
}
num9 = 0;
num10 = yr;
num5 = yc + num10;
num6 = yc - num10;
if (num5 < 0)
{
num5 = 0;
}
if (num5 >= height)
{
num5 = height - 1;
}
if (num6 < 0)
{
num6 = 0;
}
if (num6 >= height)
{
num6 = height - 1;
}
num3 = num5 * width;
num4 = num6 * width;
num13 = yr * yr;
num14 = (xr * xr) * (1 - (yr << 1));
num15 = 0;
num16 = 0;
num17 = num11 * yr;
while (num16 <= num17)
{
num8 = xc + num9;
num7 = xc - num9;
if (num8 < 0)
{
num8 = 0;
}
if (num8 >= width)
{
num8 = width - 1;
}
if (num7 < 0)
{
num7 = 0;
}
if (num7 >= width)
{
num7 = width - 1;
}
for (int j = num7; j <= num8; j++)
{
pixels[j + num3] = toInt32(color);
pixels[j + num4] = toInt32(color);
}
num9++;
num16 += num12;
num15 += num13;
num13 += num12;
if ((num14 + (num15 << 1)) > 0)
{
num10--;
num5 = yc + num10;
num6 = yc - num10;
if (num5 < 0)
{
num5 = 0;
}
if (num5 >= height)
{
num5 = height - 1;
}
if (num6 < 0)
{
num6 = 0;
}
if (num6 >= height)
{
num6 = height - 1;
}
num3 = num5 * width;
num4 = num6 * width;
num17 -= num11;
num15 += num14;
num14 += num11;
}
}
}
}
}
Is there a way to conver this code to win2d or Sharpdx?
There is a perspective image issue when I read a picture that is taken from the camera. When the direction is north, the picture looks like needed to be rotated 270 degrees. When the direction is east, picture should be rotated 180 degrees. But it's good when the direction is west. I tried getMetaData().getKeyValue("orientation") in EncodedImage for producing a good rotating formula, but it returned empty string. Please help me how to solve this problem.
Found solution here:
https://gist.github.com/3788313
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.EncodedImage;
public class ExifRotate {
/**
* Flip the image horizontally.
*/
public static final int FLIP_H = 1;
/**
* Flip the image vertically.
*/
public static final int FLIP_V = 2;
/**
* Flip the image horizontally and vertically.
*/
public static final int FLIP_HV = 3;
/**
* Rotate the image 90 degrees clockwise.
*/
public static final int FLIP_90CW = 4;
/**
* Rotate the image 90 degrees counter-clockwise.
*/
public static final int FLIP_90CCW = 5;
/**
* Rotate the image 180 degrees.
*/
public static final int FLIP_180 = 6;
private final static int read2bytes(InputStream in) throws IOException {
return in.read() << 8 | in.read();
}
private final static int readByte(InputStream in) throws IOException {
return in.read();
}
public static Bitmap readImageFromFile(String filename, int width, int height) throws IOException {
EncodedImage img = null;
byte[] data = null;
FileConnection file = null;
try {
file = (FileConnection) Connector.open(filename, Connector.READ);
int fileSize = (int) file.fileSize();
if (fileSize == 0) {
throw new IOException("File is empty");
}
data = new byte[fileSize];
InputStream input = file.openInputStream();
input.read(data);
input.close();
img = EncodedImage.createEncodedImage(data, 0, data.length);
int orientation = -1;
if ( filename.toLowerCase().endsWith(".jpg") || filename.toLowerCase().endsWith(".jpeg")) {
ByteArrayInputStream is = new ByteArrayInputStream( data );
orientation = getRotation(is);
}
if ( orientation == 2 ) {
return rotateBitmap(img.getBitmap(), ImageUtil.FLIP_H);
} else if ( orientation == 3 ) {
return rotateBitmap(img.getBitmap(), ImageUtil.FLIP_180);
} else if ( orientation == 4 ) {
return rotateBitmap(img.getBitmap(), ImageUtil.FLIP_V);
} else if ( orientation == 5 ) {
Bitmap tmp = rotateBitmap(img.getBitmap(), ImageUtil.FLIP_H);
tmp = rotateBitmap(tmp, ImageUtil.FLIP_90CCW);
return tmp;
} else if ( orientation == 6 ) {
return rotateBitmap(img.getBitmap(), ImageUtil.FLIP_90CW);
} else if ( orientation == 7 ) {
Bitmap tmp = rotateBitmap(img.getBitmap(), ImageUtil.FLIP_H);
tmp = rotateBitmap(tmp, ImageUtil.FLIP_90CW);
return tmp;
} else if ( orientation == 8 ) {
return rotateBitmap(img.getBitmap(), ImageUtil.FLIP_90CCW);
} else {
return img.getBitmap();
}
} finally {
if (file != null) {
try { file.close(); }
catch(Exception ex){}
}
}
}
public static int getRotation(InputStream in) throws IOException {
int [] exif_data = new int[100];
int n_flag = 0, set_flag = 0;
int is_motorola = 0;
/* Read File head, check for JPEG SOI + Exif APP1 */
for (int i = 0; i < 4; i++)
exif_data[i] = readByte(in);
if (exif_data[0] != 0xFF || exif_data[1] != 0xD8 || exif_data[2] != 0xFF || exif_data[3] != 0xE1)
return -2;
/* Get the marker parameter length count */
int length = read2bytes(in);
// exif_data = new int[length];
/* Length includes itself, so must be at least 2 */
/* Following Exif data length must be at least 6 */
if (length < 8)
return -1;
length -= 8;
/* Read Exif head, check for "Exif" */
for (int i = 0; i < 6; i++)
exif_data[i] = in.read();
if (exif_data[0] != 0x45 || exif_data[1] != 0x78 || exif_data[2] != 0x69 || exif_data[3] != 0x66 || exif_data[4] != 0 || exif_data[5] != 0)
return -1;
/* Read Exif body */
length = length > exif_data.length ? exif_data.length : length;
for (int i = 0; i < length; i++)
exif_data[i] = in.read();
if (length < 12)
return -1; /* Length of an IFD entry */
/* Discover byte order */
if (exif_data[0] == 0x49 && exif_data[1] == 0x49)
is_motorola = 0;
else if (exif_data[0] == 0x4D && exif_data[1] == 0x4D)
is_motorola = 1;
else
return -1;
/* Check Tag Mark */
if (is_motorola == 1) {
if (exif_data[2] != 0)
return -1;
if (exif_data[3] != 0x2A)
return -1;
} else {
if (exif_data[3] != 0)
return -1;
if (exif_data[2] != 0x2A)
return -1;
}
/* Get first IFD offset (offset to IFD0) */
int offset;
if (is_motorola == 1) {
if (exif_data[4] != 0)
return -1;
if (exif_data[5] != 0)
return -1;
offset = exif_data[6];
offset <<= 8;
offset += exif_data[7];
} else {
if (exif_data[7] != 0)
return -1;
if (exif_data[6] != 0)
return -1;
offset = exif_data[5];
offset <<= 8;
offset += exif_data[4];
}
if (offset > length - 2)
return -1; /* check end of data segment */
/* Get the number of directory entries contained in this IFD */
int number_of_tags;
if (is_motorola == 1) {
number_of_tags = exif_data[offset];
number_of_tags <<= 8;
number_of_tags += exif_data[offset + 1];
} else {
number_of_tags = exif_data[offset + 1];
number_of_tags <<= 8;
number_of_tags += exif_data[offset];
}
if (number_of_tags == 0)
return -1;
offset += 2;
/* Search for Orientation Tag in IFD0 */
for (;;) {
if (offset > length - 12)
return -1; /* check end of data segment */
/* Get Tag number */
int tagnum;
if (is_motorola == 1) {
tagnum = exif_data[offset];
tagnum <<= 8;
tagnum += exif_data[offset + 1];
} else {
tagnum = exif_data[offset + 1];
tagnum <<= 8;
tagnum += exif_data[offset];
}
if (tagnum == 0x0112)
break; /* found Orientation Tag */
if (--number_of_tags == 0)
return -1;
offset += 12;
}
/*
* if (set_flag==1) { Set the Orientation value if (is_motorola==1) {
* exif_data[offset+2] = 0; Format = unsigned short (2 octets)
* exif_data[offset+3] = 3; exif_data[offset+4] = 0; Number Of
* Components = 1 exif_data[offset+5] = 0; exif_data[offset+6] = 0;
* exif_data[offset+7] = 1; exif_data[offset+8] = 0; exif_data[offset+9]
* = set_flag; exif_data[offset+10] = 0; exif_data[offset+11] = 0; }
* else { exif_data[offset+2] = 3; Format = unsigned short (2 octets)
* exif_data[offset+3] = 0; exif_data[offset+4] = 1; Number Of
* Components = 1 exif_data[offset+5] = 0; exif_data[offset+6] = 0;
* exif_data[offset+7] = 0; exif_data[offset+8] = set_flag;
* exif_data[offset+9] = 0; exif_data[offset+10] = 0;
* exif_data[offset+11] = 0; } }
*/
// else {
/* Get the Orientation value */
if (is_motorola == 1) {
if (exif_data[offset + 8] != 0)
return -1;
set_flag = exif_data[offset + 9];
} else {
if (exif_data[offset + 9] != 0)
return -1;
set_flag = exif_data[offset + 8];
}
if (set_flag > 8)
return -1;
// }
/* Write out Orientation value */
if (n_flag == 1)
System.out.println("set_flag " + set_flag);
else
System.out.println("set_flag " + set_flag);
return set_flag;
}
public static Bitmap rotateBitmap(Bitmap src, int operation) {
int width = src.getWidth();
int height = src.getHeight();
int[] inPixels = new int[width*height];
src.getARGB(inPixels, 0, width, 0, 0, width, height);
int x = 0, y = 0;
int w = width;
int h = height;
int newX = 0;
int newY = 0;
int newW = w;
int newH = h;
switch (operation) {
case FLIP_H:
newX = width - (x + w);
break;
case FLIP_V:
newY = height - (y + h);
break;
case FLIP_HV:
newW = h;
newH = w;
newX = y;
newY = x;
break;
case FLIP_90CW:
newW = h;
newH = w;
newX = height - (y + h);
newY = x;
break;
case FLIP_90CCW:
newW = h;
newH = w;
newX = y;
newY = width - (x + w);
break;
case FLIP_180:
newX = width - (x + w);
newY = height - (y + h);
break;
}
int[] newPixels = new int[newW * newH];
int index, newRow, newCol, newIndex;
if ( operation == FLIP_H ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = row;
newCol = w - col - 1;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
} else if ( operation == FLIP_V ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = h - row - 1;
newCol = col;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
} else if ( operation == FLIP_HV ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = col;
newCol = row;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
} else if ( operation == FLIP_90CW ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = col;
newCol = h - row - 1;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
} else if ( operation == FLIP_90CCW ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = w - col - 1;
newCol = row;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
} else if ( operation == FLIP_180 ) {
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
index = row * width + col;
newRow = h - row - 1;
newCol = w - col - 1;
newIndex = newRow * newW + newCol;
newPixels[newIndex] = inPixels[index];
}
}
}
Bitmap dst = new Bitmap( newW, newH );
dst.setARGB(newPixels, 0, newW, 0, 0, newW, newH);
return dst;
}
}
I am using drawListRow to repaint the autocomplete field, but I'm having trouble to set it's field height, here is my code:
autoCustomer = new AutoCompleteField(custList, style){
public void drawListRow(ListField clistField, Graphics g,
int index, int y, int width) {
BasicFilteredListResult result = (BasicFilteredListResult)
autoCustomer.get(clistField, index);//);
if (result == null)
return;
String[] stringArray = parseMessage(result._object.toString(), Font.getDefault().derive(Font.PLAIN),fontSize, width-30);
int i;
int yCoord = 0;
int xCoord = 0;
//int rowHeight = (stringArray.length * fontHeight)+3;
clistField.setRowHeight((stringArray.length * fontHeight)+3); //already did this, but it won't work
System.out.println(stringArray.length);
g.setFont( Font.getDefault().derive(Font.PLAIN,fontSize,Ui.UNITS_px));
for(i = 0;i<stringArray.length;i++){
yCoord = y + (fontHeight*(i));
if(i>0)
xCoord = 20;
g.drawText(stringArray[i].trim() , xCoord, yCoord, (DrawStyle.LEFT | DrawStyle.ELLIPSIS | DrawStyle.TOP ), width-20);
}
}
What should I do to make proper row height with this autocomplete ?
I unintentionally found the answer, the first argument is index of the list and the second is the height.
The documentation doesn't mention about this, I only found setRowHeight(int arg0, int arg1) in the documentation of class in eclipse.
The solution is simple
clistField.setRowHeight(index,(stringArray.length * fontHeight)+3);
I try to change the texels of a Texture which is already loaded.
My assumption was to use the Texture2D::Map and UnMap functions, but there is no change when I change the data of given DataRectangle.
I need a simple example like, creating a texture of 128x128 with a gradient from black to white from each side.
Thx
ps: A Direct3D 10 C++ example may also help, SlimDX is only a wrapper and has nearly complete the same functions.
This is my D3D10 2D texture loader
bool D3D10Texture::Init( GFXHandler* pHandler, unsigned int usage, unsigned int width, unsigned int height, unsigned int textureType, bool bMipmapped, void* pTextureData )
{
mMipmapped = bMipmapped;
//SetData( pHandler, 0 );
D3D10Handler* pD3DHandler = (D3D10Handler*)pHandler;
ID3D10Device* pDevice = pD3DHandler->GetDevice();
DXGI_SAMPLE_DESC dxgiSampleDesc;
dxgiSampleDesc.Count = 1;
dxgiSampleDesc.Quality = 0;
D3D10_USAGE d3d10Usage;
if ( usage & RU_All_Dynamic ) d3d10Usage = D3D10_USAGE_DYNAMIC;
else d3d10Usage = D3D10_USAGE_DEFAULT;
//unsigned int cpuAccess = D3D10_CPU_ACCESS_WRITE;
//if ( (usage & RU_Buffer_WriteOnly) == 0 ) cpuAccess |= D3D10_CPU_ACCESS_READ;
unsigned int cpuAccess = 0;
if ( !pTextureData )
{
cpuAccess = D3D10_CPU_ACCESS_WRITE;
//if ( (usage & RU_Buffer_WriteOnly) == 0 ) cpuAccess |= D3D10_CPU_ACCESS_READ;
}
unsigned int bindFlags = D3D10_BIND_SHADER_RESOURCE;
if ( usage & RU_Texture_RenderTarget ) bindFlags |= D3D10_BIND_RENDER_TARGET;
unsigned int miscFlags = 0;
if ( usage & RU_Texture_AutoGenMipmap ) miscFlags |= D3D10_RESOURCE_MISC_GENERATE_MIPS;
D3D10_TEXTURE2D_DESC d3d10Texture2DDesc;
d3d10Texture2DDesc.Width = width;
d3d10Texture2DDesc.Height = height;
d3d10Texture2DDesc.MipLevels = GetNumMipMaps( width, height, bMipmapped );
d3d10Texture2DDesc.ArraySize = 1;
d3d10Texture2DDesc.Format = GetD3DFormat( (TextureTypes)textureType );
d3d10Texture2DDesc.SampleDesc = dxgiSampleDesc;
d3d10Texture2DDesc.Usage = d3d10Usage;
d3d10Texture2DDesc.BindFlags = D3D10_BIND_SHADER_RESOURCE;
d3d10Texture2DDesc.CPUAccessFlags = cpuAccess;
d3d10Texture2DDesc.MiscFlags = miscFlags;
//D3D10_SUBRESOURCE_DATA d3d10SubResourceData;
//d3d10SubResourceData.pSysMem = pTextureData;
//d3d10SubResourceData.SysMemPitch = GetPitch( width, (TextureTypes)textureType );
//d3d10SubResourceData.SysMemSlicePitch = 0;
D3D10_SUBRESOURCE_DATA* pSubResourceData = NULL;
if ( pTextureData )
{
pSubResourceData = new D3D10_SUBRESOURCE_DATA[d3d10Texture2DDesc.MipLevels];
char* pTexPos = (char*)pTextureData;
unsigned int pitch = GetPitch( width, (TextureTypes)textureType );
unsigned int count = 0;
unsigned int max = d3d10Texture2DDesc.MipLevels;
while( count < max )
{
pSubResourceData[count].pSysMem = pTexPos;
pSubResourceData[count].SysMemPitch = pitch;
pSubResourceData[count].SysMemSlicePitch = 0;
pTexPos += pitch * height;
pitch >>= 1;
count++;
}
}
if ( FAILED( pDevice->CreateTexture2D( &d3d10Texture2DDesc, pSubResourceData, &mpTexture ) ) )
{
return false;
}
if ( pSubResourceData )
{
delete[] pSubResourceData;
pSubResourceData = NULL;
}
mWidth = width;
mHeight = height;
mFormat = (TextureTypes)textureType;
mpTexture->AddRef();
mpTexture->Release();
D3D10_SHADER_RESOURCE_VIEW_DESC d3d10ShaderResourceViewDesc;
d3d10ShaderResourceViewDesc.Format = d3d10Texture2DDesc.Format;
d3d10ShaderResourceViewDesc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
d3d10ShaderResourceViewDesc.Texture2D.MostDetailedMip = 0;
d3d10ShaderResourceViewDesc.Texture2D.MipLevels = GetNumMipMaps( width, height, bMipmapped );
if ( FAILED( pDevice->CreateShaderResourceView( mpTexture, &d3d10ShaderResourceViewDesc, &mpView ) ) )
{
return false;
}
ResourceRecorder::Instance()->AddResource( this );
return true;
}
With that function all you need to do is pass in the whit to black texture. For example to write a 256x256 textue with each horizontal line being one brighter than the previous line the following code will work
int* pTexture = new int[256 * 256];
int count = 0;
while( count < 256 )
{
int count2 = 0;
while( count2 < 256 )
{
pTexture[(count * 256) + count2] = 0xff000000 | (count << 16) | (count << 8) | count;
count2++;
}
count++;
}
Make sure you follow the rules in the "Resource Usage Restrictions" section:
MSDN: D3D10_USAGE
public void NewData(byte[] newData)
{
DataRectangle mappedTex = null;
//assign and lock the resource
mappedTex = pTexture.Map(0, D3D10.MapMode.WriteDiscard, D3D10.MapFlags.None);
// if unable to hold texture
if (!mappedTex.Data.CanWrite)
{
throw new ApplicationException("Cannot Write to the Texture");
}
// write new data to the texture
mappedTex.Data.WriteRange<byte>(newData);
// unlock the resource
pTexture.Unmap(0);
if (samplerflag)
temptex = newData;
}
this overwrites the buffer on every new frame, you may want to use a D3D10.MapMode.readwrite or something if ur only trying to write one texel
you will also need to write to the datarectangle in a specific point using one of the other write functions