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Tune the range of the pixels drawn graph - displayed range is now 10^2 to 10^7.2 which

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should be good enough. The y-axis lines are for each 10^k,  2 <= k <= 7

svn path=/trunk/KDE/kdebase/workspace/; revision=709113
This commit is contained in:
Rivo Laks 2007-09-06 15:30:57 +00:00
parent fd0df31c9e
commit ab2a72fdcb
1 changed files with 14 additions and 5 deletions
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19
effects/showfps.cpp
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@ -236,12 +236,16 @@ void ShowFpsEffect::paintDrawSizeGraph(int x, int y)
for( int i = 0; i < NUM_PAINTS; i++)
max_drawsize = qMax(max_drawsize, paint_size[ i ] );
const int max_pixels_log = 8;
float drawscale = MAX_TIME / max_pixels_log;
// Log of min/max values shown on graph
const float max_pixels_log = 7.2f;
const float min_pixels_log = 2.0f;
const int minh = 5; // Minimum height of the bar when value > 0
float drawscale = (MAX_TIME - minh) / (max_pixels_log - min_pixels_log);
QList<int> drawlines;
for( int logh = 2; logh <= max_pixels_log; logh++ )
drawlines.append( (int)(logh*drawscale) );
for( int logh = (int)min_pixels_log; logh <= max_pixels_log; logh++ )
drawlines.append( (int)(( logh - min_pixels_log ) * drawscale ) + minh );
QList<int> drawvalues;
for( int i = 0;
@ -249,7 +253,12 @@ void ShowFpsEffect::paintDrawSizeGraph(int x, int y)
++i )
{
int value = paint_size[ ( i + paints_pos ) % NUM_PAINTS ];
int h = ( !value ) ? 0 : qMin( (int)( log10( value ) * drawscale ), MAX_TIME );
int h = 0;
if( value > 0)
{
h = (int)(( log10( value ) - min_pixels_log ) * drawscale );
h = qMin( qMax( 0, h ) + minh, MAX_TIME );
}
drawvalues.append( h );
}
paintGraph( x, y, drawvalues, drawlines, false );