.net barcode reader displayStrings[numberDisplayLines] = elem2getText in Visual Studio .NET

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displayStrings[numberDisplayLines] = elem2getText
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displayAttributes[numberDisplayLines++] = doBold;
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else{
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int doBoldOld = doBold;
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if(elem2getTagName()equals("BOLD")){
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doBold = 1;
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Then we handle the <PLAIN> tag by setting the doBold flag to 0: void doTree(Element elem, int doBold)
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Enumeration enum = elemgetChildren();
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while (enumhasMoreElements()) {
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Element elem2 = (Element)enumnextElement();
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if(elem2getType() != commsxmlElementELEMENT){
displayStrings[numberDisplayLines] = elem2getText
displayAttributes[numberDisplayLines++] = doBold;
else{
int doBoldOld = doBold;
if(elem2getTagName()equals("BOLD")){
doBold = 1;
if(elem2getTagName()equals("PLAIN")){
doBold = 0;
Now that we've interpreted the <BOLD> or <PLAIN> tag, we call doTree() again, this time passing the new doBold setting After returning from the doTree() call, we restore the old doBold setting: void doTree(Element elem, int doBold)
Enumeration enum = elemgetChildren();
while (enumhasMoreElements()) {
Element elem2 = (Element)enumnextElement();
if(elem2getType() != commsxmlElementELEMENT){
displayStrings[numberDisplayLines] = elem2getText ();
displayAttributes[numberDisplayLines++] = doBold;
else{
int doBoldOld = doBold;
if(elem2getTagName()equals("BOLD")){
doBold = 1;
if(elem2getTagName()equals("PLAIN")){
doBold = 0;
doTree(elem2, doBold);
doBold = doBoldOld;
That completes the doTree() method; next, we'll write the paint() method, seeing how to display text as bold or plain
Displaying Bold Text
In the paint() method, we will display the XML document's data as interpreted by the doTree() method The doTree() method has filled the displayStrings[] and displayAttributes[] arrays with the data we're supposed to display: displayStrings[] holds the text to
display, and displayAttributes[] tells us how to display that text (0 = plain, 1 = bold): We begin the + method with a loop over all the lines we're supposed to display: public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
To display the current line in bold or plain text, we will create a new Java Font object The Font
object specifies three aspects of the text font[md]its name (such as Roman, Courier, and so on), its style (set with the constants FontPLAIN, FontBOLD, FontITALIC) and the font size In this case, we declare our new Font object, named font, and set an integer named style to FontPLAIN: public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
On the other hand, if the doBold flag for this line (now stored in the displayAttributes[] array) is 1, we should make this line bold, which we do by setting the style integer to FontBOLD: public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
if(displayAttributes[index] == 1){
style = FontBOLD;
Next, we create the font object using Roman typeface, the style integer, and make the font 12 points (a point is 1/72 of an inch) high: public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
if(displayAttributes[index] == 1){
style = FontBOLD;
font = new Font("Roman", style, 12);
After we've created our font object, we can install that object into the Graphics object, g, passed to us in paint(); to install the new font, we use the setFont() method:
public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
if(displayAttributes[index] == 1){
style = FontBOLD;
font = new Font("Roman", style, 12);
gsetFont(font);
As we display each line in the application's window, we have to keep skipping down by the height of each line We determine the height of each line as displayed in the window by getting a FontMetrics object for the current font this way: public void paint(Graphics g)
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
if(displayAttributes[index] == 1){
style = FontBOLD;
font = new Font("Roman", style, 12);
gsetFont(font);
FontMetrics fontmetrics = getFontMetrics(getFont());
Now we increment the y-screen location of the current line by the display-line height and draw that line of text, as stored in displayStrings[], in the window: public void paint(Graphics g)
int y = 0;
for(int index = 0; index < numberDisplayLines; index++){
Font font;
int style = FontPLAIN;
if(displayAttributes[index] == 1){
style = FontBOLD;
font = new Font("Roman", style, 12);
gsetFont(font);
FontMetrics fontmetrics = getFontMetrics(getFont());
y += fontmetricsgetHeight();
gdrawString(displayStrings[index], 0, y);
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