Font Metrics, Completely Wrong Values

So what's the deal with font metrics?
The values it gives are completely wrong.
For example with a monospaced font i printed out every single
character on screen (upper, lower, 0-9, symbols).
The font metrics were:
ascent: 17
descent: 5
height: 22
leading: 0
Im trying to find the correct ascent. The REAL ascent is only 10.
The font metrics value is off by 70% and it usually is off by a lot for
all the fonts ive tried. The descent is off by 2 which isnt bad i guess.
Anyone know how to get the ACTUAL size?
in this picture the ascent is high but in my experience it is much higher:
http://www.devx.com/Java/Article/7932/1954?pf=true

The Line and Font Metric units are pixels not points.
That applet doesnt work.
Any attempt to use the "patch" results in:
Exception in thread "AWT-EventQueue-2" java.lang.NoSuchMethodError: gui.PatchFontMetrics.patch(Ljava/awt/FontMetrics;)Lgui/PatchFontMetrics;
at test.FontInfo.describeFont(FontInfo.java:56)
at test.FontInfo.handleEvent(FontInfo.java:77)

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NI PCI-6602: semi-period measurement stops unexpectedly or returns wrong values

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Hi Manfred7,
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The following code should get get the height and ascent of the font of any componant or object that inherits from componant. (I haven't compiled or run this code so it may contain errors)Componant yourComponant = new Componant();
Font yourFont = yourComponant.getFont();
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HTMLDB_APPLICATION.G_F01 has wrong value!

HTMLDB_APPLICATION.G_F01 has wrong value!
Hello again,
I have a search page in my app (here the user defines the search criteria) P1.
The page branches to P130, where the result is shown. This second page contains a region of type 'SQL Query (PL/SQL Function Body Returning SQL Query)'. The code for this dynamic query is 231 lines of code, so I want to spare you scrolling through it here . What it basically does is generating SQL QRY's such as the following:
select     distinct(sq.SAMPLE_ID) XXX,
'ID: '||sq.SAMPLE_ID||'
' ||'Type: '||sq.SAMPLE_TYPE||'
' ||'Collection Date: '||sq.COLLECTION_DATE SAMPLE_INFO,
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' ||'Volume (T/A): '||to_char(sq.VOLUME_TOTAL,'990D00')|| '/' ||to_char(sq.VOLUME_AVAILABLE,'990D00') AVAILABILITY,
'Age: '||sq.PATIENT_AGE||'
' ||'Gender: '||sq.PATIENT_SEX||'
' ||'Bloodtype: '||sq.BLOOD_TYPE||'
' PATIENT_INFO,
DML_SERVICE.get_Diagnoses(sq.SAMPLE_ID) DIAGNOSES,
DML_SERVICE.get_Medications(sq.SAMPLE_ID) MEDICATIONS,
DML_SERVICE.get_Interferences(sq.SAMPLE_ID) INTERFERENCES,
DML_SERVICE.get_LabData(sq.SAMPLE_ID) LABDATA,
decode(to_char(sq.ALIQUOTS_AVAILABLE), '0', null, htmldb_item.text(1, '1', 1, 2)) ORDER_QTY,
decode(to_char(sq.ALIQUOTS_AVAILABLE), '0', null, htmldb_item.checkbox(2,sq.SAMPLE_ID)) ORDER_ME
from SEARCH_V01 sq
where sq.DIAGNOSIS = 'D-Dimer'
order by 1 desc
The DML_SERVICE functions just return a string(Varchar2). At the right side of the report I have two columns, one with a textfield (ORDER_QTY, default: 1) and one with a checkbox (ORDER_ME) for each line.
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declare
alq_qty number;
alq_id number;
cnt number;
begin
cnt := 0;
for i in 1..HTMLDB_APPLICATION.G_F02.count
loop
select count(*) -- set alq_qty to number of available alq's
into alq_qty
from ALIQUOTS a
where a.SAMPLE_ID = HTMLDB_APPLICATION.G_F02(i)
and a.ORDER_ID = 0;
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if alq_qty > to_number(HTMLDB_APPLICATION.G_F01(i)) then -- if there are enough alq's
alq_qty := to_number(HTMLDB_APPLICATION.G_F01(i)); -- set alq_qty to number of ordered alq's
end if;
for n in 1..alq_qty
loop
select min(ID)
into alq_id
from ALIQUOTS
where sample_id = HTMLDB_APPLICATION.G_F02(i)
and order_id = 0;
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update ALIQUOTS
set order_id = :P130_SELECT_ORDER
where id = alq_id;
cnt := cnt + 1;
end loop;
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end loop;
:P130_MSG := 'Assigned '||cnt||' aliquots to order: '||:P130_SELECT_ORDER;
end;
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Sometimes.... the other times the process just orders 2 aliquots, one of each line and disregards the number entered in the textfield.
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Also: I can reproduce / recreate this error. It's totally weird: for some rows it (always) works and for some it (always) doesn't !!!
So, any help, any suggestion is really appreciated (I'm currently working on bringing the crucial part of this to marvel.oracle.com)
-David-
[Edited by: sleuniss on Jul 15, 2004 12:18 PM]
Changed subject line.

Now the subjectline is right, but the indentation is gone.... :-(
again the SQL query:
select     distinct(sq.SAMPLE_ID) XXX,
           'ID: '||sq.SAMPLE_ID||'
' ||'Type: '||sq.SAMPLE_TYPE||'
' ||'Collection Date: '||sq.COLLECTION_DATE SAMPLE_INFO,
           'Aliquots (T/A): '||to_char(sq.ALIQUOTS_TOTAL)|| '/' ||to_char(sq.ALIQUOTS_AVAILABLE)||'
' ||'Volume (T/A): '||to_char(sq.VOLUME_TOTAL,'990D00')|| '/' ||to_char(sq.VOLUME_AVAILABLE,'990D00') AVAILABILITY,
           'Age: '||sq.PATIENT_AGE||'
' ||'Gender: '||sq.PATIENT_SEX||'
' ||'Bloodtype: '||sq.BLOOD_TYPE||'
' PATIENT_INFO,
           DML_SERVICE.get_Diagnoses(sq.SAMPLE_ID) DIAGNOSES,
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from     SEARCH_V01 sq
where sq.DIAGNOSIS = 'D-Dimer'
order    by 1 desc
and the process:
declare
   alq_qty number;
   alq_id number;
   cnt number;
begin
   cnt := 0;
   for i in 1..HTMLDB_APPLICATION.G_F02.count
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         alq_qty := to_number(HTMLDB_APPLICATION.G_F01(i)); -- set alq_qty to number of ordered alq's
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      for n in 1..alq_qty
      loop
         select min(ID)
          into alq_id
          from ALIQUOTS
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          set order_id = :P130_SELECT_ORDER
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         cnt := cnt + 1;
      end loop;
      dml_service.upd_sample_record(HTMLDB_APPLICATION.G_F02(i)); -- refresh data in SAMPLE table
   end loop;
   :P130_MSG := 'Assigned '||cnt||' aliquots to order: '||:P130_SELECT_ORDER;
end;
-David-

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