diff options
Diffstat (limited to 'kradio3/plugins/gui-quickbar/buttonflowlayout.cpp')
| -rw-r--r-- | kradio3/plugins/gui-quickbar/buttonflowlayout.cpp | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/kradio3/plugins/gui-quickbar/buttonflowlayout.cpp b/kradio3/plugins/gui-quickbar/buttonflowlayout.cpp deleted file mode 100644 index 5d4ec18..0000000 --- a/kradio3/plugins/gui-quickbar/buttonflowlayout.cpp +++ /dev/null @@ -1,268 +0,0 @@ -/**************************************************************************** -** $Id: buttonflowtqlayout.cpp 272 2005-05-18 08:12:51Z emw $ -** -** Implementing your own layout: flow example -** -** Copyright (C) 1996 by Trolltech AS. All rights reserved. -** -** This file is part of an example program for TQt. This example -** program may be used, distributed and modified without limitation. -** -*****************************************************************************/ -/** - Modified 2002 by Klas Kalass (klas.kalass@gmx.de) for kradio - */ - -#include <kdebug.h> - -#include "buttonflowlayout.h" - -/*********************************************/ -/* Iterator */ -class ButtonFlowLayoutIterator :public TQGLayoutIterator -{ -public: - ButtonFlowLayoutIterator( TQPtrList<TQLayoutItem> *l ) :idx(0), list(l) {} - uint count() const; - TQLayoutItem *current(); - TQLayoutItem *next(); - TQLayoutItem *takeCurrent(); - -private: - int idx; - TQPtrList<TQLayoutItem> *list; - -}; - -uint ButtonFlowLayoutIterator::count() const -{ - return list->count(); -} - -TQLayoutItem *ButtonFlowLayoutIterator::current() -{ - return idx < int(count()) ? list->at(idx) : 0; -} - -TQLayoutItem *ButtonFlowLayoutIterator::next() -{ - idx++; return current(); -} - -TQLayoutItem *ButtonFlowLayoutIterator::takeCurrent() -{ - return idx < int(count()) ? list->take( idx ) : 0; -} - -/**************************************************************/ - -ButtonFlowLayout::ButtonFlowLayout( TQWidget *parent, int margin, int spacing, - const char *name ) - : TQLayout( parent, margin, spacing, name ), - cached_width(0) -{ -} - -ButtonFlowLayout::ButtonFlowLayout( TQLayout* parentLayout, int spacing, const char *name ) - : TQLayout( parentLayout, spacing, name ), - cached_width(0) -{ -} - -ButtonFlowLayout::ButtonFlowLayout( int spacing, const char *name ) - : TQLayout( spacing, name ), - cached_width(0) -{ -} - -ButtonFlowLayout::~ButtonFlowLayout() -{ - deleteAllItems(); -} - - -int ButtonFlowLayout::heightForWidth( int w ) const -{ - if ( cached_width != w ) { - //Not all C++ compilers support "mutable" yet: - ButtonFlowLayout * mthis = (ButtonFlowLayout*)this; - int h = mthis->doLayout( TQRect(0,0,w,0), TRUE ); - mthis->cached_hfw = h; - mthis->cached_width = w; - return h; - } - return cached_hfw; -} - -void ButtonFlowLayout::addItem( TQLayoutItem *item) -{ - list.append( TQT_TQLAYOUTITEM(item) ); -} - -bool ButtonFlowLayout::hasHeightForWidth() const -{ - return TRUE; -} - -TQSize ButtonFlowLayout::sizeHint() const -{ - return minimumSize(); -} - -TQSizePolicy::ExpandData ButtonFlowLayout::expanding() const -{ - return TQ_SPNoDirection; -} - -TQLayoutIterator ButtonFlowLayout::iterator() -{ - // [FIXME] -#ifdef USE_QT4 - #warning [FIXME] ContainerAreaLayout iterators may not function correctly under Qt4 - return TQLayoutIterator( this ); // [FIXME] -#else // USE_QT4 - return TQLayoutIterator( new ButtonFlowLayoutIterator( &list ) ); -#endif // USE_QT4 -} - -void ButtonFlowLayout::setGeometry( const TQRect &r ) -{ - TQLayout::setGeometry( r ); - doLayout( r ); -} - -int ButtonFlowLayout::doLayout( const TQRect &r, bool testonly ) -{ -/* kdDebug() << "buttonflowlayout::doLayout (" - << r.x() << "," << r.y() << "," - << r.width() << "," << r.height() << ", " << testonly << ")\n"; -*/ - float x = r.x(); - float y = r.y(); - int h = 0; //height of this line so far. - float buttonWidth = 0; - int buttonHeight = 0; - int linecount = 0; - int totalWidth = r.width(); - int totalHeight = r.height(); - - TQPtrListIterator<TQLayoutItem> it(list); - TQLayoutItem *o; - - // get the width of the biggest Button - - it.toFirst(); - while ( (o=it.current()) != 0 ) { - ++it; - buttonWidth = TQMAX( buttonWidth, o->sizeHint().width() ); - buttonHeight = TQMAX( buttonHeight, o->sizeHint().height() ); - } - - // calculate the optimal width - unsigned int columns = (totalWidth + spacing()) / - ((int)buttonWidth + spacing()); - if (columns > it.count() ) columns = it.count(); - if (columns == 0) columns = 1; // avoid division by zero - - - int rows = (it.count() - 1) / columns + 1; - float deltaH = (float)(totalHeight - rows * buttonHeight - (rows - 1) * spacing()) - / (float)(rows + 1) ; - if (deltaH < 0) deltaH = 0; - - y += deltaH; - - buttonWidth = (float)(totalWidth - spacing()*(columns-1)) / (float)columns; - -/* fprintf (stderr, "cols = %i col-width = %f\n" - "rows = %i row-height = %i\n" - "w = %i h = %i\n", - columns, buttonWidth, - rows, buttonHeight, - totalWidth, totalHeight - ); -*/ - // calculate the positions and sizes - it.toFirst(); - while ( (o = it.current()) != 0 ) { - -// fprintf (stderr, "x = %i y = %i\n", x, (int)y); - ++it; - int btnRight = (int)rint(x + buttonWidth) - 1, - btnLeft = (int)rint(x); - - if ( btnRight > r.right() && h > 0 ) { - x = r.x(); - btnRight = (int)rint(x + buttonWidth) - 1; - btnLeft = (int)rint(x); - - y += h + spacing() + deltaH; - h = 0; - linecount++; - } - if (!testonly) - o->setGeometry( TQRect( TQPoint( btnLeft, (int)rint(y) ), - TQSize( btnRight - btnLeft + 1, - buttonHeight) ) - ); - - x += buttonWidth + spacing(); - h = TQMAX( h, buttonHeight ); - } - - int ret = (int)rint(y + h + deltaH) - r.y(); - -// kdDebug() << "ButtonFlowLayout::doLayout() = " << ret << endl; - return ret; -} - - -TQSize ButtonFlowLayout::minimumSize() const -{ - return minimumSize(geometry().size()); -} - - -TQSize ButtonFlowLayout::minimumSize(const TQSize &r) const -{ - TQSize s(0, 0); - - for (TQPtrListIterator<TQLayoutItem> it(list); it.current(); ++it) { - TQLayoutItem *o = it.current(); - s = s.expandedTo( o->sizeHint()); //minimumSize() ); - } - - s.setHeight(heightForWidth(r.width())); - - return s; -} - -#ifdef USE_QT4 -/*! - \reimp -*/ -int ButtonFlowLayout::count() const { - return list.count(); -} - -/*! - \reimp -*/ -TQLayoutItem* ButtonFlowLayout::itemAt(int index) const { - return index >= 0 && index < list.count() ? (const_cast<TQPtrList<TQLayoutItem>&>(list).at(index)) : 0; -} - -/*! - \reimp -*/ -TQLayoutItem* ButtonFlowLayout::takeAt(int index) { - if (index < 0 || index >= list.count()) - return 0; - TQLayoutItem *item = list.at(index); - list.remove(list.at(index)); - delete item; - - invalidate(); - return item; -} -#endif // USE_QT4 |