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Theme Editor: Implemented caching for rendered text, added profiling info to debug build, added a 500msec delay when rendering after code changes to prevent editor from hanging on large themes

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27332 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Robert Bieber 2010-07-07 09:33:47 +00:00
parent 6f06793f58
commit 6d609e009f
11 changed files with 158 additions and 18 deletions
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19
utils/themeeditor/graphics/rbfont.cpp
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@ -21,6 +21,7 @@
#include "rbfont.h"
#include "rbfontcache.h"
#include "rbtextcache.h"
#include <QFont>
#include <QBrush>
@ -166,6 +167,13 @@ RBFont::~RBFont()
RBText* RBFont::renderText(QString text, QColor color, int viewWidth,
QGraphicsItem *parent)
{
/* Checking for a cache hit first */
QImage* image = RBTextCache::lookup(header.value("filename").toString()
+ text);
if(image)
return new RBText(image, viewWidth, parent);
int firstChar = header.value("firstchar").toInt();
int height = header.value("height").toInt();
int maxWidth = header.value("maxwidth").toInt();
@ -184,10 +192,10 @@ RBText* RBFont::renderText(QString text, QColor color, int viewWidth,
for(int i = 0; i < widths.count(); i++)
totalWidth += widths[i];
QImage image(totalWidth, height, QImage::Format_Indexed8);
image = new QImage(totalWidth, height, QImage::Format_Indexed8);
image.setColor(0, qRgba(0,0,0,0));
image.setColor(1, color.rgb());
image->setColor(0, qRgba(0,0,0,0));
image->setColor(1, color.rgb());
/* Drawing the text */
int startX = 0;
@ -214,9 +222,9 @@ RBText* RBFont::renderText(QString text, QColor color, int viewWidth,
for(int bit = 0; bit < 8; bit++)
{
if(mask & data)
image.setPixel(x, y, 1);
image->setPixel(x, y, 1);
else
image.setPixel(x, y, 0);
image->setPixel(x, y, 0);
y++;
mask <<= 1;
@ -230,6 +238,7 @@ RBText* RBFont::renderText(QString text, QColor color, int viewWidth,
startX += widths[i];
}
RBTextCache::insert(header.value("filename").toString() + text, image);
return new RBText(image, viewWidth, parent);
}