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list box for changinf tests added

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This commit is contained in:
Uwe Rathmann 2019-07-29 17:34:46 +02:00
parent 7075879244
commit 3d9a85d6c1
4 changed files with 161 additions and 60 deletions
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7
playground/grids/GridWidgets.cpp
View File

@ -21,6 +21,8 @@ namespace
setPalette( QColor( colorName.constData() ) );
setAutoFillBackground( true );
setAttribute( Qt::WA_LayoutUsesWidgetRect, true );
}
void setPreferredWidth( qreal width )
@ -72,8 +74,9 @@ GridWidgets::~GridWidgets()
void GridWidgets::insert( const QByteArray& colorName,
int row, int column, int rowSpan, int columnSpan )
{
m_layout->addWidget( new Rectangle( colorName ),
row, column, rowSpan, columnSpan );
auto rectangle = new Rectangle( colorName );
m_layout->addWidget( rectangle, row, column, rowSpan, columnSpan );
rectangle->show();
}
void GridWidgets::setSpacing( Qt::Orientations orientations, int spacing )

74
playground/grids/TestBox.cpp
View File

@ -12,29 +12,45 @@
TestBox::TestBox( QWidget* parent )
: QWidget( parent )
, m_grids {}
{
setPalette( QColor( "Lavender" ) );
setAutoFillBackground( true );
setContentsMargins( QMargins( 10, 10, 10, 10 ) );
m_grids[Skinny] = new GridSkinny( this );
m_labels[Skinny] = new QLabel( "Skinny", this );
m_grids[Widgets] = new GridWidgets( this );
m_labels[Widgets] = new QLabel( "Widget", this );
m_grids[Graphics] = new GridGraphics( this );
m_labels[Graphics] = new QLabel( "Graphic", this );
m_grids[Quick] = new GridQuick( this );
m_labels[Quick] = new QLabel( "Quick", this );
for ( int i = 0; i < GridCount; i++ )
m_labels[i] = new QLabel( this );
}
TestBox::~TestBox()
{
}
void TestBox::reset()
{
setColumns( 2 );
for ( auto grid : m_grids )
delete grid;
m_grids[Skinny] = new GridSkinny( this );
m_grids[Widgets] = new GridWidgets( this );
m_grids[Graphics] = new GridGraphics( this );
m_grids[Quick] = new GridQuick( this );
for ( int i = 0; i < GridCount; i++ )
{
m_grids[i]->show();
m_labels[i]->show();
m_labels[i]->raise();
m_labels[i]->setText( QString() );
}
updateGeometry();
}
void TestBox::enableGrid( int index, bool on )
{
m_grids[index]->setVisible( on );
@ -161,7 +177,6 @@ void TestBox::setVisibleAt( int index, bool on )
accessor->setVisibleAt( index, on );
}
}
}
QSize TestBox::preferredSize() const
@ -171,21 +186,8 @@ QSize TestBox::preferredSize() const
bool TestBox::event( QEvent* event )
{
if ( event->type() == QEvent::Polish )
{
for ( int i = 0; i < GridCount; i++ )
{
auto accessor = dynamic_cast< GridAccessor* >( m_grids[i] );
auto label = m_labels[i];
const auto hint = accessor->preferredSize();
QString text = label->text();
text += QString( ": ( %1x%2 )" ).arg( hint.width() ).arg( hint.height() );
label->setText( text );
}
}
if ( event->type() == QEvent::LayoutRequest )
layoutGrids();
return QWidget::event( event );
}
@ -195,6 +197,24 @@ void TestBox::resizeEvent( QResizeEvent* )
layoutGrids();
}
void TestBox::updateLabels()
{
const QString texts[ GridCount ] = { "Skinny", "Widgets", "Graphics", "Quick" };
for ( int i = 0; i < GridCount; i++ )
{
auto accessor = dynamic_cast< GridAccessor* >( m_grids[i] );
auto label = m_labels[i];
const auto hint = accessor->preferredSize();
QString text = texts[i];
text += QString( ": ( %1x%2 )" ).arg( hint.width() ).arg( hint.height() );
label->setText( text );
}
}
void TestBox::layoutGrids()
{
/*

3
playground/grids/TestBox.h
View File

@ -27,6 +27,8 @@ class TestBox : public QWidget, public GridAccessor
TestBox( QWidget* parent = nullptr );
~TestBox() override;
void reset();
void setColumns( int );
void enableGrid( int, bool on );
@ -50,6 +52,7 @@ class TestBox : public QWidget, public GridAccessor
protected:
bool event( QEvent* ) override;
void resizeEvent( QResizeEvent* ) override;
void updateLabels();
private:
void layoutGrids();

137
playground/grids/main.cpp
View File

@ -7,31 +7,44 @@
#include <QskSizePolicy.h>
#include <QApplication>
#include <QListWidget>
#include <QDebug>
class MainBox : public TestBox
#include <functional>
#include <vector>
class Box : public TestBox
{
public:
MainBox( int id )
Box( QWidget* parent = nullptr )
: TestBox( parent )
{
using Testcase = void ( MainBox::* )();
const Testcase tests[] =
m_tests =
{
&MainBox::test0, &MainBox::test1, &MainBox::test2,
&MainBox::test3, &MainBox::test4, &MainBox::test5,
&MainBox::test6, &MainBox::test7, &MainBox::test8,
&MainBox::test9
&Box::test0, &Box::test1, &Box::test2,
&Box::test3, &Box::test4, &Box::test5,
&Box::test6, &Box::test7, &Box::test8,
&Box::test9, &Box::test10
};
const int count = static_cast< int >( sizeof( tests ) / sizeof( tests[0] ) );
if ( id < 0 || id >= count )
id = 0;
( this->*tests[id] )();
}
void showTest( int id )
{
reset();
id = qBound( 0, id, count() - 1 );
m_tests[id]( *this );
updateLabels();
}
int count() const
{
return m_tests.size();
}
private:
void insert( const char* colorName, int row, int column )
{
insert( colorName, row, column, 1, 1 );
@ -39,8 +52,6 @@ class MainBox : public TestBox
using TestBox::insert;
private:
void test0();
void test1();
void test2();
@ -51,9 +62,12 @@ class MainBox : public TestBox
void test7();
void test8();
void test9();
void test10();
std::vector< std::function< void( Box& ) > > m_tests;
};
void MainBox::test0()
void Box::test0()
{
// something, that works with all layouts
@ -64,7 +78,7 @@ void MainBox::test0()
insert( "NavajoWhite", 3, 0, 1, 3 );
}
void MainBox::test1()
void Box::test1()
{
/*
Graphics layout adds the extra space to the stretchables
@ -91,7 +105,7 @@ void MainBox::test1()
setColumnSizeHint( 1, Qt::MinimumSize, 100 );
}
void MainBox::test2()
void Box::test2()
{
setColumns( 1 );
@ -109,7 +123,7 @@ void MainBox::test2()
setMinimumWidthAt( 2, 100 );
}
void MainBox::test3()
void Box::test3()
{
/*
The Graphics layout uses a "magic" formula for how to apply
@ -131,7 +145,7 @@ void MainBox::test3()
setRowStretchFactor( 1, 2 );
}
void MainBox::test4()
void Box::test4()
{
/*
When setting a maximum size together with an alignment the expected result
@ -155,7 +169,7 @@ void MainBox::test4()
setAlignmentAt( 0, Qt::AlignCenter );
}
void MainBox::test5()
void Box::test5()
{
/*
QGridLayoutEngine does not work correctly when putting more
@ -183,9 +197,12 @@ void MainBox::test5()
setFixedSizeAt( 0, QSize( 100, 100 ) );
setFixedSizeAt( 1, QSize( 50, 50 ) );
setAlignmentAt( 0, Qt::AlignCenter );
setAlignmentAt( 1, Qt::AlignCenter );
}
void MainBox::test6()
void Box::test6()
{
/*
QGridLayoutEngine ignores the first column coming from
@ -198,7 +215,7 @@ void MainBox::test6()
//setSpacing( 0 );
}
void MainBox::test7()
void Box::test7()
{
/*
This test is very similar to test6, but here we can see a
@ -216,7 +233,7 @@ void MainBox::test7()
//setRetainSizeWhenHiddenAt( 0, true );
}
void MainBox::test8()
void Box::test8()
{
/*
This test creates a situation, where we have more space than
@ -243,7 +260,7 @@ void MainBox::test8()
}
}
void MainBox::test9()
void Box::test9()
{
/*
This one is a bit unclear about how much space from the first
@ -262,6 +279,64 @@ void MainBox::test9()
//setColumnFixedWidth( 0, 50 );
}
void Box::test10()
{
/*
Widgets gives space to the bounded columns 1/2 instead
of 0/3, where they would be more useful.
*/
insert( "PaleVioletRed", 0, 0 );
insert( "NavajoWhite", 0, 1, 1, 2 );
insert( "Coral", 0, 3 );
setMaximumWidthAt( 1, 70 );
}
class MainWidget : public QWidget
{
public:
MainWidget( int id )
{
m_box = new Box( this );
m_box->showTest( id );
m_listBox = new QListWidget( this );
for ( int i = 0; i < m_box->count(); i++ )
m_listBox->addItem( QStringLiteral( "Test " ) + QString::number( i ) );
m_listBox->setCurrentRow( id );
connect( m_listBox, &QListWidget::currentRowChanged,
m_box, &Box::showTest );
}
protected:
void resizeEvent( QResizeEvent* ) override
{
/*
Not using layouts here to avoid confusion
while debugging.
*/
const auto r = contentsRect();
const int spacing = 5;
auto fm = m_listBox->fontMetrics();
const int w1 = fm.width( "Test 100" ) + 20;
const int w2 = r.width() - w1 - spacing;
m_listBox->setGeometry( r.left(), r.top(), w1, r.height() );
m_box->setGeometry( r.right() - w2, r.top(), w2, r.height() );
m_listBox->setFocus();
}
private:
QListWidget* m_listBox;
Box* m_box;
};
int main( int argc, char** argv )
{
QApplication a( argc, argv );
@ -270,10 +345,10 @@ int main( int argc, char** argv )
if ( argc == 2 )
testcase = atoi( argv[1] );
MainBox box( testcase );
MainWidget w( testcase );
box.resize( 600, 600 );
box.show();
w.resize( 600, 600 );
w.show();
return a.exec();
}