Theme Editor: Rockbox FNT files now supported. Theme editor will currently load fonts from the current project directory, or use the built-in font if they're not present

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27318 a1c6a512-1295-4272-9138-f99709370657

utils/themeeditor/graphics/rbfont.cpp

@@ -24,10 +24,14 @@
 #include <QFont>
 #include <QBrush>
 #include <QFile>
+#include <QPainter>
+#include <QBitmap>
+#include <QImage>
 
-#include <QDebug>
+quint16 RBFont::maxFontSizeFor16BitOffsets = 0xFFDB;
 
 RBFont::RBFont(QString file)
+    : valid(false), imageData(0), offsetData(0), widthData(0)
 {
 
     /* Attempting to locate the correct file name */
@@ -40,6 +44,7 @@ RBFont::RBFont(QString file)
     fin.open(QFile::ReadOnly);
 
     /* Loading the header info */
+    quint8 byte;
     quint16 word;
     quint32 dword;
 
@@ -89,23 +94,120 @@ RBFont::RBFont(QString file)
    data >> dword;
    header.insert("nwidth", dword);
 
+   /* Loading the image data */
+   imageData = new quint8[header.value("nbits").toInt()];
+   for(int i = 0; i < header.value("nbits").toInt(); i++)
+   {
+       data >> byte;
+       imageData[i] = byte;
+   }
+
+   /* Aligning on 16-bit boundary */
+   if(header.value("nbits").toInt() % 2 == 1)
+       data >> byte;
+
+   /* Loading the offset table if necessary */
+   if(header.value("noffset").toInt() > 0)
+   {
+       offsetData = new quint16[header.value("noffset").toInt()];
+       for(int i = 0; i < header.value("noffset").toInt(); i++)
+       {
+           data >> word;
+           offsetData[i] = word;
+       }
+   }
+
+   /* Loading the width table if necessary */
+   if(header.value("nwidth").toInt() > 0)
+   {
+       widthData = new quint8[header.value("nwidth").toInt()];
+       for(int i = 0; i < header.value("nwidth").toInt(); i++)
+       {
+           data >> byte;
+           widthData[i] = byte;
+       }
+   }
+
    fin.close();
 
-    qDebug() << header ;
 }
 
 RBFont::~RBFont()
 {
+    if(imageData)
+        delete[] imageData;
+    if(offsetData)
+        delete[] offsetData;
+    if(widthData)
+        delete[] widthData;
 }
 
-QGraphicsSimpleTextItem* RBFont::renderText(QString text, QColor color,
-                                            QGraphicsItem *parent)
+RBText* RBFont::renderText(QString text, QColor color, QGraphicsItem *parent)
 {
-    QGraphicsSimpleTextItem* retval = new QGraphicsSimpleTextItem(text, parent);
-    QFont font;
-    font.setFixedPitch(true);
-    font.setPixelSize(8);
-    retval->setFont(font);
-    retval->setBrush(QBrush(color));
-    return retval;
+    int firstChar = header.value("firstchar").toInt();
+    int height = header.value("height").toInt();
+    int maxWidth = header.value("maxwidth").toInt();
+
+    /* First we determine the width of the combined text */
+    QList<int> widths;
+    for(int i = 0; i < text.length(); i++)
+    {
+        if(widthData)
+            widths.append(widthData[text[i].unicode() - firstChar]);
+        else
+            widths.append(maxWidth);
+    }
+
+    int totalWidth = 0;
+    for(int i = 0; i < widths.count(); i++)
+        totalWidth += widths[i];
+
+    QImage image(totalWidth, height, QImage::Format_Indexed8);
+
+    image.setColor(0, qRgba(0,0,0,0));
+    image.setColor(1, color.rgb());
+
+    /* Drawing the text */
+    int startX = 0;
+    for(int i = 0; i < text.length(); i++)
+    {
+        unsigned int offset;
+        if(offsetData)
+            offset = offsetData[text[i].unicode() - firstChar];
+        else
+            offset = (text[i].unicode() - firstChar) * maxWidth;
+
+        int bytesHigh = height / 8;
+        if(height % 8 > 0)
+            bytesHigh++;
+
+        int bytes = bytesHigh * widths[i];
+
+        for(int byte = 0; byte < bytes; byte++)
+        {
+            int x = startX + byte % widths[i];
+            int y = byte / widths[i] * 8;
+            quint8 data = imageData[offset];
+            quint8 mask = 0x1;
+            for(int bit = 0; bit < 8; bit++)
+            {
+                if(mask & data)
+                    image.setPixel(x, y, 1);
+                else
+                    image.setPixel(x, y, 0);
+
+                y++;
+                mask <<= 1;
+                if(y >= height)
+                    break;
+            }
+
+            offset++;
+        }
+
+        startX += widths[i];
+    }
+
+    return new RBText(image, parent);
+
 }

utils/themeeditor/graphics/rbfont.h

@@ -24,21 +24,29 @@
 
 #include <QString>
 #include <QFile>
-#include <QGraphicsSimpleTextItem>
+#include <QGraphicsPixmapItem>
 #include <QHash>
 
+#include "rbtext.h"
+
 class RBFont
 {
 public:
     RBFont(QString file);
     virtual ~RBFont();
 
-    QGraphicsSimpleTextItem* renderText(QString text, QColor color,
+    RBText* renderText(QString text, QColor color,
                                         QGraphicsItem* parent = 0);
-    int lineHeight(){ return 8; }
+    int lineHeight(){ return header.value("height", 0).toInt(); }
+
+    static quint16 maxFontSizeFor16BitOffsets;
 
 private:
     QHash<QString, QVariant> header;
+    bool valid;
+    quint8* imageData;
+    quint16* offsetData;
+    quint8* widthData;
 };
 
 #endif // RBFONT_H

utils/themeeditor/graphics/rbtext.cpp

@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: rbfont.cpp 27301 2010-07-05 22:15:17Z bieber $
+ *
+ * Copyright (C) 2010 Robert Bieber
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "rbtext.h"
+
+#include <QPainter>
+
+RBText::RBText(const QImage &image, QGraphicsItem *parent)
+    :QGraphicsItem(parent), image(image)
+{
+}
+
+QRectF RBText::boundingRect() const
+{
+    return QRectF(0, 0, image.width(), image.height());
+}
+
+void RBText::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+                   QWidget *widget)
+{
+    painter->drawImage(0, 0, image, 0, 0, image.width(), image.height());
+}

utils/themeeditor/graphics/rbtext.h

@@ -0,0 +1,42 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: rbfont.cpp 27301 2010-07-05 22:15:17Z bieber $
+ *
+ * Copyright (C) 2010 Robert Bieber
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef RBTEXT_H
+#define RBTEXT_H
+
+#include <QGraphicsItem>
+#include <QImage>
+
+class RBText : public QGraphicsItem
+{
+public:
+    RBText(const QImage& image, QGraphicsItem* parent);
+
+    QRectF boundingRect() const;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+               QWidget *widget);
+
+private:
+    QImage image;
+
+};
+
+#endif // RBTEXT_H

utils/themeeditor/graphics/rbviewport.cpp

@@ -30,8 +30,7 @@
 #include "skin_parser.h"
 
 RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
-    : QGraphicsItem(info.screen()), font(info.screen()->getFont(0)),
-    foreground(info.screen()->foreground()),
+    : QGraphicsItem(info.screen()), foreground(info.screen()->foreground()),
     background(info.screen()->background()), textOffset(0,0),
     screen(info.screen()), textAlign(Left), showStatusBar(false),
     statusBarTexture(":/render/statusbar.png")
@@ -42,6 +41,7 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
         size = QRectF(0, 0, info.screen()->getWidth(),
                       info.screen()->getHeight());
         customUI = false;
+        font = screen->getFont(1);
 
         if(info.model()->rowCount(QModelIndex()) > 1)
         {
@@ -120,6 +120,10 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
             y -= screen->parentItem()->pos().y();
         }
 
+        if(node->params[++param].type == skin_tag_parameter::DEFAULT)
+            font = screen->getFont(1);
+        else
+            font = screen->getFont(node->params[param].data.numeric);
 
         setPos(x, y);
         size = QRectF(0, 0, w, h);

utils/themeeditor/themeeditor.pro

@@ -43,7 +43,8 @@ HEADERS += models/parsetreemodel.h \
     gui/devicestate.h \
     graphics/rbalbumart.h \
     graphics/rbprogressbar.h \
-    gui/findreplacedialog.h
+    gui/findreplacedialog.h \
+    graphics/rbtext.h
 SOURCES += main.cpp \
     models/parsetreemodel.cpp \
     models/parsetreenode.cpp \
@@ -63,7 +64,8 @@ SOURCES += main.cpp \
     gui/devicestate.cpp \
     graphics/rbalbumart.cpp \
     graphics/rbprogressbar.cpp \
-    gui/findreplacedialog.cpp
+    gui/findreplacedialog.cpp \
+    graphics/rbtext.cpp
 OTHER_FILES += README \
     resources/windowicon.png \
     resources/appicon.xcf \