[Gambas-user] Working printsample with more than one page

[Roel Touwen]

Hi Rolf,

Sounds easy, but (maybe a stupid question) but where do I send the return?

Grtz

Roel



op 03-02-16 16:19, Rolf-Werner Eilert schreef:
> Basically, I think that is easy here: Just send a Return when the "last"
> row has been reached, and it will leave the printing and start a new page.
>
> Still, you have to define the number of page to be printed in order to
> be able to start printing.
>
> That makes it somewhat... errr.... ;)
>
> Rolf
>
> Am 03.02.2016 16:05, schrieb Roel Touwen:
>> Hi Rolf,
>>
>> In my software I print invoice, lists, whatever.....  When I print
>> invoices I print the lines with a function which calculates where it has
>> to print on the page:
>>
>> Public Sub PrintAt(Row As Float, Col As Integer, Txt As String)
>>
>>      txtWidth = Draw.Font.TextWidth(txt)
>>      txtHeight = Draw.Font.TextHeight(txt)
>>      PosY = Row * 162
>>      posX = Col * 55 + 50
>>      Paint.DrawRichText(Txt, PosX, PosY, txtWidth, txtHeight)
>>
>> End
>>
>> Now I want to skip to the next page when variable Row exceeds a value.
>> But somehow I cannot find how I can skip to the next page. So what I am
>> realy looking for is the addpage function which was available in gambas 2.
>> Whe I fiddled arount in my code by telling there were 2 pages, the
>> content on page 2 was nog cleared, e.g. it was the same as on page 1.
>>
>> Any ideas?
>>
>> Grtz
>>
>> Roel Touwen
>>
>>
>>
>> op 03-02-16 15:57, Rolf-Werner Eilert schreef:
>>> Hi Roel,
>>>
>>> The way printing is managed in Gambas3 is completely different in one
>>> way: You have to tell the number of pages beforehand, then printing runs
>>> automatically page for page.  There is one help page that gives a rough
>>> overview.
>>>
>>> Why do you want to clear a page? Your code will have to check what to
>>> print on each page while it is printing, and you cannot stop until all
>>> pages have been printed.
>>>
>>> In my case, the problem was how to print tables of random length.
>>> Gambas2 was "simple": The program just printed a table line for line,
>>> then initiated a new page when the table had reached the lower edge.
>>>
>>> Now I found this solution for Gambas3: The table will start at a given
>>> position on the page. There are functions that I could use to measure
>>> the exact height of each table line. It sums up until it finds it will
>>> hit the lower end, then save the number of this line in a list, go on to
>>> the next end of page and so on... After measuring and counting, the
>>> number of entries in the list will tell how many pages are needed, and
>>> printing can be started.
>>>
>>> I found that the new way of printing is way faster than the old one. It
>>> is in fact so fast that I could simply print into a temporary pdf file,
>>> then use this file for a preview. When the user hits OK, this pdf is
>>> sent to the printer.
>>>
>>> On the other hand, I had to re-think a number of functions and when this
>>> will happen before that etc., and still haven't completely finished :)
>>>
>>> Regards
>>> Rolf
>>>
>>> Am 03.02.2016 12:03, schrieb Roel Touwen:
>>>> Hi all,
>>>>
>>>> I'm converting software from Gambas 2 to 3. Printing seems to be very
>>>> very different in Gambas 3.
>>>>
>>>> Has anyone a sample of printing more pages? So also clearing the page etc.
>>>>
>>>> Thanks for now.
>>>>
>>>> Best regards,
>>>>
>>>> Roel
>>>>
>>>>
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>
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