sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-04-14 00:07:35 -04:00
Code Issues Packages Projects Releases Wiki Activity

Added setting of scale programatially

Browse Source
This commit is contained in:
Magnus Homann 2012-09-21 00:18:56 +02:00
parent dbbb3c35be
commit 01c4ac7d54
3 changed files with 52 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
src/gui/qgsscalecombobox.cpp
View File

@ -106,6 +106,26 @@ QString QgsScaleComboBox::scaleString()
{
return toString( mScale );
}
//! Function to set the selected scale from text
// @note added in 2.0
bool QgsScaleComboBox::setScaleString( QString scaleTxt )
{
bool ok;
double newScale = toDouble( scaleTxt, &ok );
if ( ! ok )
{
return false;
}
else
{
mScale = newScale;
setEditText( toString( mScale ) );
clearFocus();
return true;
}
}
//! Function to read the selected scale as double
// @note added in 2.0
double QgsScaleComboBox::scale()
@ -113,6 +133,13 @@ double QgsScaleComboBox::scale()
return mScale;
}
//! Function to set the selected scale from double
// @note added in 2.0
void QgsScaleComboBox::setScale( double scale )
{
setScaleString( toString( scale ) );
}
//! Slot called when QComboBox has changed
void QgsScaleComboBox::fixupScale()
{
@ -128,7 +155,7 @@ void QgsScaleComboBox::fixupScale()
}
// We set to the new string representation
// or reset to the old
setEditText( toString( mScale ) );
setScale( mScale );
if ( oldScale != mScale )
{

11
src/gui/qgsscalecombobox.h
View File

@ -33,9 +33,16 @@ class GUI_EXPORT QgsScaleComboBox : public QComboBox
//! Function to read the selected scale as text
// @note added in 2.0
QString scaleString();
//! Function to set the selected scale from text
// @note added in 2.0
bool setScaleString( QString scaleTxt );
//! Function to read the selected scale as double
// @note added in 2.0
double scale();
//! Function to set the selected scale from double
// @note added in 2.0
void setScale( double scale );
//! Helper function to convert a double to scale string
// Performs rounding, so an exact representation is not to
// be expected.
@ -45,9 +52,9 @@ class GUI_EXPORT QgsScaleComboBox : public QComboBox
// @note added in 2.0
static double toDouble( QString scaleString, bool *ok = NULL );
//! Signals is emited when user has finished editing/selecting a new scale.
// @note added in 2.0
signals:
//! Signal is emitted when *user* has finished editing/selecting a new scale.
// @note added in 2.0
void scaleChanged();
public slots:

15
tests/src/gui/testqgsscalecombobox.cpp
View File

@ -94,6 +94,21 @@ void TestQgsScaleComboBox::basic()
QCOMPARE( s->scaleString(), QString( "1:4" ) );
QCOMPARE( s->scale(), ( double ) 0.25 );
// Test setting programatically
s->setScale(( double ) 0.19 );
QCOMPARE( s->scaleString(), QString( "1:5" ) );
QCOMPARE( s->scale(), ( double ) 0.2 );
// Test setting programatically
s->setScaleString( QString( "1:240" ) );
QCOMPARE( s->scaleString(), QString( "1:240" ) );
QCOMPARE( s->scale(), ( double ) 1.0 / ( double ) 240.0 );
// Test setting programatically illegal string
s->setScaleString( QString( "1:2.4" ) );
QCOMPARE( s->scaleString(), QString( "1:240" ) );
QCOMPARE( s->scale(), ( double ) 1.0 / ( double ) 240.0 );
};
void TestQgsScaleComboBox::slot_test()