Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Need an example for SetTextJustification API call

Posted on 1998-06-12
2
Medium Priority
?
855 Views
Last Modified: 2008-02-01
"The SetTextJustification function can be used to align a line that contains multiple runs in different fonts. In this case, the line must be created piecemeal by aligning and writing each run separately. " 

Can anyone give me an example for the above application of SetTextJustification ?!

Thanx in advance.

Levente
slv@mcse.hu
0
Comment
Question by:Levente
2 Comments
 
LVL 5

Accepted Solution

by:
inter earned 1200 total points
ID: 1352522
Hi again,
As stated above single SetTextJustification call is not enough to adjust for text containing several different font sizes. Since we can select one FONT at a time on a canvas we should compute each runs length, number of spaces etc...Lets explore it with an example:

Suppose we have the following line (where the chars in [] will be bold and the others will be normal)
  Str := 'Hello this is normal [and this is bold]'
In this case we should first dive the string into to
  NormStr := 'Hello this is normal '
  BoldStr := '[and this is bold]'

  BreakCnt := CountBreaks(Str);
  // We should determine the length of each run seperately after applying font change
  NormLen := Canvas.TextWidth(NormStr);
  // Apply formatting for bold text and measure it
  Canvas.Font.Style := Canvas.Font.Style + [fsBold];
  BoldLen := Canvas.TextWidth(BoldStr);
  //restore
  Canvas.Font.Style := Canvas.Font.Style - [fsBold];
  //Now we have total length of the formatted text. Assuming that the WitdhOfLine is
  //known we can set and output the text
  SetTextJustification(Canvas.Handle, WidthOfLine - (NormLen+BoldLen), BreakCnt);
  // Output the normal text
  Canvas.TextOut(X,Y,NormStr);
  // before chaning style get new with of the previous text for computing starting point
  // corretly
  NormLen := Canvas.TextWidth(NormStr);
  Canvas.Font.Style := Canvas.Font.Style + [fsBold];
  Canvas.TextOut(X + NormLen, Y, BoldStr);
  // DONE!

Seems it is compicated. However, if we represent the lines and paragraphs with proper data structures(lists of objects etc) we can do this itteratively.

Regards, (there may be some mistakes above but the idea is there)
Igor
0
 

Author Comment

by:Levente
ID: 1352523
Hi Igor,

Thanx for your help. It works and it is great. Even more I understood the basic idea. Thanks for your work. Excelent.

Levente
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
This video shows how to quickly and easily deploy an email signature for all users in Office 365 and prevent it from being added to replies and forwards. (the resulting signature is applied on the server level in Exchange Online) The email signat…
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …
Suggested Courses

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question