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Old 06-30-2008, 02:43 PM   #1 (permalink)
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Question Make field take up remaining space on screen.

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Hello,
I have a custom field which needs to take up the space that's left on the screen when I add it. So if it's the third field added or the only field added, it needs to take up the rest of the screen.
I can already set the height to whatever I want, but I don't know how to calculate the space that hasn't been used yet. naturally I don't want to use any more space than is on the screen, because that creates an ugly scroll bar.
Also I don't want to use hard coded numbers. Every screen/blackberry/theme is different so this needs to be dynamic as well.

Basically if there is a way to get the total space on the screen then subtract the space already used, it should give the space left.

Note: I am using JDE 4.1.0


Thank you for your help.
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Old 06-30-2008, 04:17 PM   #2 (permalink)
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You can get the screen height with Display.getHeight(), and you can get the height of each added field with Field.getHeight().
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Old 06-30-2008, 04:39 PM   #3 (permalink)
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Thank you but what about the height of the Title field. How do I get that?

Like, the first screen that uses this actually only has the title field and the rest of the space is devoted to the field in question.

The following does not work... (A vertical scroll bar is still there)
Code:
LabelField temp = new LabelField("this is the title", LabelField.ELLIPSIS | LabelField.USE_ALL_WIDTH); //Temp is simply used so that the program can get the height of the title field, but failes
int heightOfFieldsAboveMainCM = temp.getHeight();
this.setTitle(temp);
mainCM.setHeight(Display.getHeight()-heightOfFieldsAboveMainCM);
this.add(mainCM);
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