//*CMZ : 2.00/12 06/09/98 20.31.14 by Fons Rademakers
//*CMZ : 2.00/00 17/02/98 18.04.01 by Fons Rademakers
//*-- Author : Fons Rademakers 02/01/98
//*KEEP,CopyRight,T=C.
/*************************************************************************
* Copyright(c) 1995-1999, The ROOT System, All rights reserved. *
* Authors: Rene Brun, Fons Rademakers. *
* For list of contributors see $ROOTSYS/AA_CREDITS. *
* *
* Permission to use, copy, modify and distribute this software and its *
* documentation for non-commercial purposes is hereby granted without *
* fee, provided that the above copyright notice appears in all copies *
* and that both the copyright notice and this permission notice appear *
* in the supporting documentation. The authors make no claims about the *
* suitability of this software for any purpose. It is provided "as is" *
* without express or implied warranty. *
*************************************************************************/
//*KEEP,CopyLeft.
/**************************************************************************
This source is based on Xclass95, a Win95-looking GUI toolkit.
Copyright (C) 1996, 1997 David Barth, Ricky Ralston, Hector Peraza.
Xclass95 is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
**************************************************************************/
//*KEND.
//////////////////////////////////////////////////////////////////////////
// //
// A number of different layout classes (TGLayoutManager, //
// TGVerticalLayout, TGHorizontalLayout, TGLayoutHints, etc.). //
// //
// //
// Concerning the TGMatrixLayout class: //
// //
// It arranges frames in a matrix-like way. //
// This manager provides : //
// - a column number (0 means unlimited) //
// - a row number (0 means unlimited) //
// - horizontal & vertical separators //
// //
// Notes : If both column and row are fixed values, any remaining //
// frames outside the count won't be managed. //
// Unlimited rows means the frame can expand downward //
// (the default behaviour in most UI). //
// Both unlimied rows and columns is undefined (read: will //
// crash the algorithm ;-). //
// With fixed dimensions, frames are always arranged in rows. //
// That is: 1st frame is at position (0,0), next one is at //
// row(0), column(1) and so on... //
// When specifying one dimension as unlimited (i.e. row=0 or //
// column=0) the frames are arranged according to the direction //
// of the fixed dimension. //
// //
//////////////////////////////////////////////////////////////////////////
//*KEEP,TGLayout.
#include "TGLayout.h"
//*KEEP,TGFrame.
#include "TGFrame.h"
//*KEEP,TList.
#include "TList.h"
//*KEEP,TMath.
#include "TMath.h"
//*KEND.
ClassImp(TGLayoutHints)
ClassImp(TGLayoutManager)
ClassImp(TGVerticalLayout)
ClassImp(TGHorizontalLayout)
ClassImp(TGRowLayout)
ClassImp(TGColumnLayout)
ClassImp(TGMatrixLayout)
ClassImp(TGTileLayout)
ClassImp(TGListLayout)
ClassImp(TGListDetailsLayout)
//______________________________________________________________________________
TGVerticalLayout::TGVerticalLayout(TGCompositeFrame *main)
{
// Create vertical layout manager.
fMain = main;
fList = fMain->GetList();
}
//______________________________________________________________________________
void TGVerticalLayout::Layout()
{
// Make a vertical layout of all frames in the list.
TGFrameElement *ptr;
TGLayoutHints *layout;
Int_t nb_expand = 0;
Int_t top, bottom;
ULong_t hints;
UInt_t extra_space = 0;
Int_t exp = 0;
Int_t exp_max = 0;
Int_t remain;
Int_t x = 0, y = 0;
Int_t bw = fMain->GetBorderWidth();
TGDimension size, csize;
TGDimension msize = fMain->GetSize();
UInt_t pad_left, pad_top, pad_right, pad_bottom;
if (!fList) return;
bottom = msize.fHeight - (top = bw);
remain = msize.fHeight - (bw << 1);
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
layout = ptr->fLayout;
size = ptr->fFrame->GetDefaultSize();
size.fHeight += layout->GetPadTop() + layout->GetPadBottom();
hints = layout->GetLayoutHints();
if ((hints & kLHintsExpandY) || (hints & kLHintsCenterY)) {
nb_expand++;
exp += size.fHeight;
exp_max = TMath::Min(exp_max, (Int_t)size.fHeight);
} else
remain -= size.fHeight;
}
}
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
hints = (layout = ptr->fLayout)->GetLayoutHints();
csize = ptr->fFrame->GetDefaultSize();
pad_left = layout->GetPadLeft();
pad_top = layout->GetPadTop();
pad_right = layout->GetPadRight();
pad_bottom = layout->GetPadBottom();
if (hints & kLHintsRight)
x = msize.fWidth - bw - csize.fWidth - pad_right;
else if (hints & kLHintsCenterX)
x = (msize.fWidth - (bw << 1) - csize.fWidth) >> 1;
else // defaults to kLHintsLeft
x = pad_left + bw;
if (hints & kLHintsExpandX) {
size.fWidth = msize.fWidth - (bw << 1) - pad_left - pad_right;
x = pad_left + bw;
} else {
size.fWidth = csize.fWidth;
}
if (hints & kLHintsExpandY) {
if ((remain / nb_expand) >= exp_max)
size.fHeight = (remain / nb_expand) - pad_top - pad_bottom;
else
size.fHeight = csize.fHeight + (remain - exp) / nb_expand;
} else {
size.fHeight = csize.fHeight;
if (hints & kLHintsCenterY) {
if ((remain / nb_expand) >= exp_max)
extra_space = ((remain / nb_expand) - pad_top - pad_bottom - size.fHeight) >> 1;
else
extra_space = ((remain - exp) / nb_expand) >> 1;
y += extra_space;
top += extra_space;
}
}
if (hints & kLHintsBottom) {
y = bottom - size.fHeight - pad_bottom;
bottom -= size.fHeight + pad_top + pad_bottom;
} else { // kLHintsTop by default
y = top + pad_top;
top += size.fHeight + pad_top + pad_bottom;
}
if (hints & kLHintsCenterY)
top += extra_space;
ptr->fFrame->MoveResize(x, y, size.fWidth, size.fHeight);
}
}
}
//______________________________________________________________________________
TGDimension TGVerticalLayout::GetDefaultSize() const
{
// Return default dimension of the vertical layout.
TGFrameElement *ptr;
TGDimension size(0,0), msize = fMain->GetSize(), csize;
UInt_t options = fMain->GetOptions();
if ((options & kFixedWidth) && (options & kFixedHeight))
return msize;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
csize = ptr->fFrame->GetDefaultSize();
size.fWidth = TMath::Max(size.fWidth, csize.fWidth + ptr->fLayout->GetPadLeft() +
ptr->fLayout->GetPadRight());
size.fHeight += csize.fHeight + ptr->fLayout->GetPadTop() +
ptr->fLayout->GetPadBottom();
}
}
size.fWidth += fMain->GetBorderWidth() << 1;
size.fHeight += fMain->GetBorderWidth() << 1;
if (options & kFixedWidth) size.fWidth = msize.fWidth;
if (options & kFixedHeight) size.fHeight = msize.fHeight;
return size;
}
//______________________________________________________________________________
void TGHorizontalLayout::Layout()
{
// Make a horizontal layout of all frames in the list.
TGFrameElement *ptr;
TGLayoutHints *layout;
Int_t nb_expand = 0;
Int_t left, right;
ULong_t hints;
UInt_t extra_space = 0;
Int_t exp = 0;
Int_t exp_max = 0;
Int_t remain;
Int_t x = 0, y = 0;
Int_t bw = fMain->GetBorderWidth();
TGDimension size, csize;
TGDimension msize = fMain->GetSize();
UInt_t pad_left, pad_top, pad_right, pad_bottom;
if (!fList) return;
right = msize.fWidth - (left = bw);
remain = msize.fWidth - (bw << 1);
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
layout = ptr->fLayout;
size = ptr->fFrame->GetDefaultSize();
size.fWidth += layout->GetPadLeft() + layout->GetPadRight();
hints = layout->GetLayoutHints();
if ((hints & kLHintsExpandX) || (hints & kLHintsCenterX)) {
nb_expand++;
exp += size.fWidth;
exp_max = TMath::Min(exp_max, (Int_t)size.fWidth);
} else
remain -= size.fWidth;
}
}
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
hints = (layout = ptr->fLayout)->GetLayoutHints();
csize = ptr->fFrame->GetDefaultSize();
pad_left = layout->GetPadLeft();
pad_top = layout->GetPadTop();
pad_right = layout->GetPadRight();
pad_bottom = layout->GetPadBottom();
if (hints & kLHintsBottom)
y = msize.fHeight - bw - csize.fHeight - pad_bottom;
else if (hints & kLHintsCenterY)
y = (msize.fHeight - (bw << 1) - csize.fHeight) >> 1;
else // kLHintsTop by default
y = pad_top + bw;
if (hints & kLHintsExpandY) {
size.fHeight = msize.fHeight - (bw << 1) - pad_top - pad_bottom;
y = pad_top + bw;
} else {
size.fHeight = csize.fHeight;
}
if (hints & kLHintsExpandX) {
if ((remain / nb_expand) >= exp_max)
size.fWidth = (remain / nb_expand) - pad_left - pad_right;
else
size.fWidth = csize.fWidth + (remain - exp) / nb_expand;
} else {
size.fWidth = csize.fWidth;
if (hints & kLHintsCenterX) {
if ((remain / nb_expand) >= exp_max)
extra_space = ((remain / nb_expand) - pad_left - pad_right - size.fWidth) >> 1;
else
extra_space = ((remain - exp) / nb_expand) >> 1;
x += extra_space;
left += extra_space;
}
}
if (hints & kLHintsRight) {
x = right - size.fWidth - pad_right;
right -= size.fWidth + pad_left + pad_right;
} else { // defaults to kLHintsLeft
x = left + pad_left;
left += size.fWidth + pad_left + pad_right;
}
if (hints & kLHintsCenterX)
left += extra_space;
ptr->fFrame->MoveResize(x, y, size.fWidth, size.fHeight);
}
}
}
//______________________________________________________________________________
TGDimension TGHorizontalLayout::GetDefaultSize() const
{
// Return default dimension of the horizontal layout.
TGFrameElement *ptr;
TGDimension size(0,0), msize = fMain->GetSize(), csize;
UInt_t options = fMain->GetOptions();
if ((options & kFixedWidth) && (options & kFixedHeight))
return msize;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
csize = ptr->fFrame->GetDefaultSize();
size.fWidth += csize.fWidth + ptr->fLayout->GetPadLeft() +
ptr->fLayout->GetPadRight();
size.fHeight = TMath::Max(size.fHeight, csize.fHeight + ptr->fLayout->GetPadTop() +
ptr->fLayout->GetPadBottom());
}
}
size.fWidth += fMain->GetBorderWidth() << 1;
size.fHeight += fMain->GetBorderWidth() << 1;
if (options & kFixedWidth) size.fWidth = msize.fWidth;
if (options & kFixedHeight) size.fHeight = msize.fHeight;
return size;
}
//______________________________________________________________________________
void TGRowLayout::Layout()
{
// Make a row layout of all frames in the list.
TGFrameElement *ptr;
TGDimension size;
Int_t bw = fMain->GetBorderWidth();
Int_t x = bw, y = bw;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
size = ptr->fFrame->GetDefaultSize();
ptr->fFrame->Move(x, y);
ptr->fFrame->Layout();
x += size.fWidth + fSep;
}
}
}
//______________________________________________________________________________
TGDimension TGRowLayout::GetDefaultSize() const
{
// Return default dimension of the row layout.
TGFrameElement *ptr;
TGDimension size(0,0), dsize, msize = fMain->GetSize();
UInt_t options = fMain->GetOptions();
if ((options & kFixedHeight) && (options & kFixedWidth))
return msize;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
dsize = ptr->fFrame->GetDefaultSize();
size.fHeight = TMath::Max(size.fHeight, dsize.fHeight);
size.fWidth += dsize.fWidth + fSep;
}
}
size.fHeight += fMain->GetBorderWidth() << 1;
size.fWidth += fMain->GetBorderWidth() << 1;
size.fWidth -= fSep;
if (options & kFixedHeight) size.fHeight = msize.fHeight;
if (options & kFixedWidth) size.fWidth = msize.fWidth;
return size;
}
//______________________________________________________________________________
void TGColumnLayout::Layout()
{
// Make a column layout of all frames in the list.
TGFrameElement *ptr;
TGDimension size;
Int_t bw = fMain->GetBorderWidth();
Int_t x = bw, y = bw;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
size = ptr->fFrame->GetDefaultSize();
ptr->fFrame->Move(x, y);
ptr->fFrame->Layout();
y += size.fHeight + fSep;
}
}
}
//______________________________________________________________________________
TGDimension TGColumnLayout::GetDefaultSize() const
{
// Return default dimension of the column layout.
TGFrameElement *ptr;
TGDimension size(0,0), dsize, msize = fMain->GetSize();
UInt_t options = fMain->GetOptions();
if (options & kFixedHeight && options & kFixedWidth)
return msize;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
dsize = ptr->fFrame->GetDefaultSize();
size.fHeight += dsize.fHeight + fSep;
size.fWidth = TMath::Max(size.fWidth, dsize.fWidth);
}
}
size.fHeight += fMain->GetBorderWidth() << 1;
size.fHeight -= fSep;
size.fWidth += fMain->GetBorderWidth() << 1;
if (options & kFixedHeight) size.fHeight = msize.fHeight;
if (options & kFixedWidth) size.fWidth = msize.fWidth;
return size;
}
//______________________________________________________________________________
TGMatrixLayout::TGMatrixLayout(TGCompositeFrame *main, UInt_t r, UInt_t c,
Int_t s, Int_t h)
{
// TGMatrixLayout constructor.
fMain = main;
fList = fMain->GetList();
fSep = s;
fHints = h;
fRows = r;
fColumns = c;
}
//______________________________________________________________________________
void TGMatrixLayout::Layout()
{
// Make a matrix layout of all frames in the list.
TGFrameElement *ptr;
TGDimension csize, maxsize(0,0);
Int_t bw = fMain->GetBorderWidth();
Int_t x = fSep, y = fSep + bw;
UInt_t rowcount = fRows, colcount = fColumns;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
csize = ptr->fFrame->GetDefaultSize();
maxsize.fWidth = TMath::Max(maxsize.fWidth, csize.fWidth);
maxsize.fHeight = TMath::Max(maxsize.fHeight, csize.fHeight);
}
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
ptr->fFrame->Move(x, y);
ptr->fFrame->Layout();
if (fColumns == 0) {
y += maxsize.fHeight + fSep;
rowcount--;
if (rowcount <= 0) {
rowcount = fRows;
y = fSep + bw; x += maxsize.fWidth + fSep;
}
} else if (rowcount == 0) {
x += maxsize.fWidth + fSep;
colcount--;
if (colcount <= 0) {
colcount = fColumns;
x = fSep; y += maxsize.fHeight + fSep;
}
} else {
x += maxsize.fWidth + fSep;
rowcount--;
if (rowcount <= 0) {
rowcount = fRows; colcount--;
x = fSep; y += maxsize.fHeight + fSep;
if (colcount <= 0) return;
}
}
}
}
//______________________________________________________________________________
TGDimension TGMatrixLayout::GetDefaultSize() const
{
// Return default dimension of the matrix layout.
TGFrameElement *ptr;
TGDimension size, csize, maxsize(0,0);
Int_t count = 0;
Int_t bw = fMain->GetBorderWidth();
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
count++;
csize = ptr->fFrame->GetDefaultSize();
maxsize.fWidth = TMath::Max(maxsize.fWidth, csize.fWidth);
maxsize.fHeight = TMath::Max(maxsize.fHeight, csize.fHeight);
}
if (fRows == 0) {
Int_t rows = (count % fColumns) ? (count / fColumns + 1) : (count / fColumns);
size.fWidth = fColumns * (maxsize.fWidth + fSep) + fSep;
size.fHeight = rows * (maxsize.fHeight + fSep) + fSep + bw;
} else if (fColumns == 0) {
Int_t cols = (count % fRows) ? (count / fRows + 1) : (count / fRows);
size.fWidth = cols * (maxsize.fWidth + fSep) + fSep;
size.fHeight = fRows * (maxsize.fHeight + fSep) + fSep + bw;
} else {
size.fWidth = fColumns * (maxsize.fWidth + fSep) + fSep;
size.fHeight = fRows * (maxsize.fHeight + fSep) + fSep + bw;
}
return size;
}
//______________________________________________________________________________
TGTileLayout::TGTileLayout(TGCompositeFrame *main, Int_t sep)
{
// Create a tile layout manager.
fMain = main;
fSep = sep;
fList = fMain->GetList();
}
//______________________________________________________________________________
void TGTileLayout::Layout()
{
// Make a tile layout of all frames in the list.
TGFrameElement *ptr;
Int_t x, y, xw, yw;
UInt_t max_width;
ULong_t hints;
TGDimension csize, max_osize(0,0), msize = fMain->GetSize();
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
csize = ptr->fFrame->GetDefaultSize();
max_osize.fWidth = TMath::Max(max_osize.fWidth, csize.fWidth);
max_osize.fHeight = TMath::Max(max_osize.fHeight, csize.fHeight);
}
max_width = TMath::Max(msize.fWidth, max_osize.fWidth + (fSep << 1));
x = fSep; y = fSep << 1;
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
hints = ptr->fLayout->GetLayoutHints();
csize = ptr->fFrame->GetDefaultSize();
if (hints & kLHintsCenterX)
xw = x + (Int_t)((max_osize.fWidth - csize.fWidth) >> 1);
else if (hints & kLHintsRight)
xw = x + (Int_t)max_osize.fWidth - (Int_t)csize.fWidth;
else // defaults to kLHintsLeft
xw = x;
if (hints & kLHintsCenterY)
yw = y + (Int_t)((max_osize.fHeight - csize.fHeight) >> 1);
else if (hints & kLHintsBottom)
yw = y + (Int_t)max_osize.fHeight - (Int_t)csize.fHeight;
else // defaults to kLHintsTop
yw = y;
ptr->fFrame->Move(xw, yw);
x += (Int_t)max_osize.fWidth + fSep;
if (x + max_osize.fWidth > max_width) {
x = fSep;
y += (Int_t)max_osize.fHeight + fSep + (fSep >> 1);
}
}
}
//______________________________________________________________________________
TGDimension TGTileLayout::GetDefaultSize() const
{
// Return default dimension of the tile layout.
TGFrameElement *ptr;
Int_t x, y;
TGDimension max_size, max_osize(0,0), msize = fMain->GetSize();
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
max_size = ptr->fFrame->GetDefaultSize();
max_osize.fWidth = TMath::Max(max_osize.fWidth, max_size.fWidth);
max_osize.fHeight = TMath::Max(max_osize.fHeight, max_size.fHeight);
}
max_size.fWidth = TMath::Max(msize.fWidth, max_osize.fWidth + (fSep << 1));
x = fSep; y = fSep << 1;
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
x += max_osize.fWidth + fSep;
if (x + max_osize.fWidth > max_size.fWidth) {
x = fSep;
y += (Int_t)max_osize.fHeight + fSep + (fSep >> 1); // 3/2
}
}
if (x != fSep) y += max_osize.fHeight + fSep;
max_size.fHeight = TMath::Max(y, (Int_t)msize.fHeight);
return max_size;
}
//______________________________________________________________________________
void TGListLayout::Layout()
{
// Make a tile layout of all frames in the list.
TGFrameElement *ptr;
Int_t x, y, xw, yw;
UInt_t max_height;
ULong_t hints;
TGDimension csize, max_osize(0,0), msize = fMain->GetSize();
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
csize = ptr->fFrame->GetDefaultSize();
max_osize.fWidth = TMath::Max(max_osize.fWidth, csize.fWidth);
max_osize.fHeight = TMath::Max(max_osize.fHeight, csize.fHeight);
}
max_height = TMath::Max(msize.fHeight, max_osize.fHeight + (fSep << 1));
x = fSep; y = fSep << 1;
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
hints = ptr->fLayout->GetLayoutHints();
csize = ptr->fFrame->GetDefaultSize();
if (hints & kLHintsCenterX)
xw = x + (Int_t)((max_osize.fWidth - csize.fWidth) >> 1);
else if (hints & kLHintsRight)
xw = x + (Int_t)max_osize.fWidth - (Int_t)csize.fWidth;
else // defaults to kLHintsLeft
xw = x;
if (hints & kLHintsCenterY)
yw = y + (Int_t)((max_osize.fHeight - csize.fHeight) >> 1);
else if (hints & kLHintsBottom)
yw = y + (Int_t)max_osize.fHeight - (Int_t)csize.fHeight;
else // defaults to kLHintsTop
yw = y;
ptr->fFrame->Move(xw, yw);
y += (Int_t)max_osize.fHeight + fSep + (fSep >> 1);
if (y + max_osize.fHeight > max_height) {
y = fSep << 1;
x += (Int_t)max_osize.fWidth + fSep;
}
}
}
//______________________________________________________________________________
TGDimension TGListLayout::GetDefaultSize() const
{
// Return default dimension of the list layout.
TGFrameElement *ptr;
Int_t x, y;
TGDimension max_size, max_osize(0,0), msize = fMain->GetSize();
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
max_size = ptr->fFrame->GetDefaultSize();
max_osize.fWidth = TMath::Max(max_osize.fWidth, max_size.fWidth);
max_osize.fHeight = TMath::Max(max_osize.fHeight, max_size.fHeight);
}
max_size.fHeight = TMath::Max(msize.fHeight, max_osize.fHeight + (fSep << 1));
x = fSep; y = fSep << 1;
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
y += (Int_t)max_osize.fHeight + fSep + (fSep >> 1);
if (y + max_osize.fHeight > max_size.fHeight) {
y = fSep << 1;
x += (Int_t)max_osize.fWidth + fSep;
}
}
if (y != (fSep << 1)) x += (Int_t)max_osize.fWidth + fSep;
max_size.fWidth = TMath::Max(x, (Int_t)msize.fWidth);
return max_size;
}
//______________________________________________________________________________
void TGListDetailsLayout::Layout()
{
// Make a list details layout of all frames in the list.
TGFrameElement *ptr;
TGDimension csize, msize = fMain->GetSize();
Int_t max_oh = 0, x = fSep, y = fSep << 1;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
csize = ptr->fFrame->GetDefaultSize();
max_oh = TMath::Max(max_oh, (Int_t)csize.fHeight);
}
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
csize = ptr->fFrame->GetDefaultSize();
ptr->fFrame->MoveResize(x, y, msize.fWidth, csize.fHeight);
ptr->fFrame->Layout();
y += max_oh + fSep + (fSep >> 1);
}
}
}
//______________________________________________________________________________
TGDimension TGListDetailsLayout::GetDefaultSize() const
{
// Return default dimension of the list details layout.
TGFrameElement *ptr;
TGDimension csize, max_osize(0,0);
Int_t y = fSep << 1;
TIter next(fList);
while ((ptr = (TGFrameElement *) next())) {
csize = ptr->fFrame->GetDefaultSize();
max_osize.fWidth = TMath::Max(max_osize.fWidth, csize.fWidth);
max_osize.fHeight = TMath::Max(max_osize.fHeight, csize.fHeight);
}
next.Reset();
while ((ptr = (TGFrameElement *) next())) {
if (ptr->fState & kIsVisible) {
y += max_osize.fHeight + fSep + (fSep >> 1);
}
}
return TGDimension(max_osize.fWidth, y);
}
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