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Made the scale bar units intelligently switch between m and km as appropriate.

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Made the scale bar max lenght 1/3 screen rather than 1/2


git-svn-id: http://svn.osgeo.org/qgis/trunk@1688 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
timlinux 2004-06-27 00:09:25 +00:00
parent db6cfda517
commit 093db91552
1 changed files with 11 additions and 5 deletions
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14
plugins/scale_bar/plugin.cpp
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@ -84,7 +84,7 @@ qgisMainWindowPointer(theQGisApp),
qGisInterface(theQgisInterFace),
QgisPlugin(name_,description_,version_,type_)
{
mPreferredSize = 100;
mPreferredSize = 30;
mPlacement = "Top Left";
mStyle = "Tick Down";
mEnabled = true;
@ -153,7 +153,7 @@ void Plugin::run()
int myUnits=qGisInterface->getMapCanvas()->mapUnits();
switch (myUnits)
{
case 0: myPluginGui->spnSize->setSuffix(tr(" metres")); break;
case 0: myPluginGui->spnSize->setSuffix(tr(" metres/km")); break;
case 1: myPluginGui->spnSize->setSuffix(tr(" feet")); break;
case 2: myPluginGui->spnSize->setSuffix(tr(" degrees")); break;
default: std::cout << "Error: not picked up map units - actual value = " << myUnits << std::endl;
@ -205,9 +205,9 @@ void Plugin::renderScaleBar(QPainter * theQPainter)
};
//if scale bar is more than half the canvas wide keep halving until not
while (myScaleBarWidth > myCanvasWidth/2)
while (myScaleBarWidth > myCanvasWidth/3)
{
myScaleBarWidth = myScaleBarWidth /2;
myScaleBarWidth = myScaleBarWidth /3;
};
myActualSize = myScaleBarWidth * myMuppDouble;
@ -236,7 +236,13 @@ void Plugin::renderScaleBar(QPainter * theQPainter)
case 2: myScaleBarUnitLabel=tr(" degrees"); break;
default: std::cout << "Error: not picked up map units - actual value = " << myMapUnits << std::endl;
};
//use km if units are larget and scale bar width is larger then 1000
if (myMapUnits==0 && myActualSize > 1000)
{
myScaleBarUnitLabel=tr(" km");
myActualSize = myActualSize/1000;
}
//Set font and calculate width of unit label
int myFontSize = 10; //we use this later for buffering
QFont myFont( "helvetica", myFontSize );