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About GridLayout Source [message #447946]

Wed, 22 December 2004 03:23

cloudor Mising name

Messages: 34
Registered: July 2009

Member

Hi,

I have a question about GridLayout source code whether the following two
loops are dupplicated?

In class GridLayout, line 452-469, ver 3.0.1:

// Put spacers in the grid to account for the item's vertical
// and horizontal span.
rowFill = spec.verticalSpan - 1;
columnFill = spec.hSpan - 1;
for (int r = 1; r <= rowFill; r++) {
for (int c = 0; c < spec.hSpan; c++) {
spacerSpec = new GridData();
spacerSpec.isItemData = false;
((GridData[]) grid.elementAt(row + r))[column + c] =
spacerSpec;
}
}
for (int c = 1; c <= columnFill; c++) {
for (int r = 0; r < spec.verticalSpan; r++) {
spacerSpec = new GridData();
spacerSpec.isItemData = false;
((GridData[]) grid.elementAt(row + r))[column + c] =
spacerSpec;
}
}

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Re: About GridLayout Source [message #447947 is a reply to message #447946]

Wed, 22 December 2004 03:30

cloudor Mising name

Messages: 34
Registered: July 2009

Member

It might be good to replace the second loop with:

for (int c = 1; c <= columnFill; c++) {
spacerSpec = new GridData();
spacerSpec.isItemData = false;
((GridData[]) grid.elementAt(row))[column + c] =
spacerSpec;

}

Cloudor Pu wrote:
> Hi,
>
> I have a question about GridLayout source code whether the following two
> loops are dupplicated?
>
> In class GridLayout, line 452-469, ver 3.0.1:
>
> // Put spacers in the grid to account for the item's vertical
> // and horizontal span.
> rowFill = spec.verticalSpan - 1;
> columnFill = spec.hSpan - 1;
> for (int r = 1; r <= rowFill; r++) {
> for (int c = 0; c < spec.hSpan; c++) {
> spacerSpec = new GridData();
> spacerSpec.isItemData = false;
> ((GridData[]) grid.elementAt(row + r))[column + c] =
> spacerSpec;
> }
> }
> for (int c = 1; c <= columnFill; c++) {
> for (int r = 0; r < spec.verticalSpan; r++) {
> spacerSpec = new GridData();
> spacerSpec.isItemData = false;
> ((GridData[]) grid.elementAt(row + r))[column + c] =
> spacerSpec;
> }
> }

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Re: About GridLayout Source [message #447958 is a reply to message #447947]

Wed, 22 December 2004 13:08

Veronika Irvine

Messages: 1272
Registered: July 2009

Senior Member

Please look at the source for GridLayout in 3.1. This class has been
rewritten.

"Cloudor Pu" <cloudor@126.com> wrote in message
news:cqapp8$5vb$1@www.eclipse.org...
> It might be good to replace the second loop with:
>
>
> for (int c = 1; c <= columnFill; c++) {
> spacerSpec = new GridData();
> spacerSpec.isItemData = false;
> ((GridData[]) grid.elementAt(row))[column + c] =
> spacerSpec;
>
> }
>
>
> Cloudor Pu wrote:
>> Hi,
>>
>> I have a question about GridLayout source code whether the following two
>> loops are dupplicated?
>>
>> In class GridLayout, line 452-469, ver 3.0.1:
>>
>> // Put spacers in the grid to account for the item's vertical
>> // and horizontal span.
>> rowFill = spec.verticalSpan - 1;
>> columnFill = spec.hSpan - 1;
>> for (int r = 1; r <= rowFill; r++) {
>> for (int c = 0; c < spec.hSpan; c++) {
>> spacerSpec = new GridData();
>> spacerSpec.isItemData = false;
>> ((GridData[]) grid.elementAt(row + r))[column + c] =
>> spacerSpec;
>> }
>> }
>> for (int c = 1; c <= columnFill; c++) {
>> for (int r = 0; r < spec.verticalSpan; r++) {
>> spacerSpec = new GridData();
>> spacerSpec.isItemData = false;
>> ((GridData[]) grid.elementAt(row + r))[column + c] =
>> spacerSpec;
>> }
>> }

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