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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit8b2aa1b5301ab60368a03e36df4ff5216726e87d (patch)
tree36163d4ee667c23b5cf232df2f3004cd0a76202a /kscreensaver/kdesavers/firesaverwriter.h
downloadtdeartwork-8b2aa1b5301ab60368a03e36df4ff5216726e87d.tar.gz
tdeartwork-8b2aa1b5301ab60368a03e36df4ff5216726e87d.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeartwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ * Copyright (C) 2004 by E.Ros *
+ * rosenric@dei.unipd.it *
+ * *
+ * 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. *
+ * *
+ ***************************************************************************/
+
+#ifndef FIRESAVER_WRITER_H
+#define FIRESAVER_WRITER_H
+
+#include <qgl.h>
+#include <qptrlist.h>
+#include <qmap.h>
+#include <qstring.h>
+
+class Symbol
+{
+ public:
+ Symbol( unsigned int textureNumber, float l, float t, float r, float b )
+ : scale((r - l) / (b - t)), texNum(textureNumber), L(l), T(1-t), R(r), B(1-b)
+ {
+ v1[0] = -scale; v1[1] = 1;
+ v2[0] = -scale; v2[1] = -1;
+ v3[0] = scale; v3[1] = 1;
+ v4[0] = scale; v4[1] = -1;
+ }
+
+ float scale;
+
+ inline void renderSymbol()
+ {
+ //draw the symbol and update "cursor"'s position
+ glBindTexture( GL_TEXTURE_2D, texNum );
+ glTranslatef( scale, 0, 0 );
+ glBegin( GL_TRIANGLE_STRIP );
+ glTexCoord2f( L, T );
+ glVertex2fv( v1 );
+ glTexCoord2f( L, B );
+ glVertex2fv( v2 );
+ glTexCoord2f( R, T );
+ glVertex2fv( v3 );
+ glTexCoord2f( R, B );
+ glVertex2fv( v4 );
+ glEnd();
+ glTranslatef( scale, 0, 0 );
+ }
+
+ private:
+ float v1[2], v2[2], v3[2], v4[2];
+ unsigned int texNum; //number of texture to activate
+ float L, T, R, B; //coordinates for mapping
+};
+
+
+class Word
+{
+ friend class Writer;
+ public:
+ Word( const char * text, QMap<char, Symbol *> * map, float scale = 1.0 );
+
+ inline void renderWord( double dT );
+ inline bool isDead();
+
+ private:
+ float width, scale, cX, cY;
+ float vScale, vX, vY;
+ float activateTime, lifeTime, currentTime;
+ float color[4];
+ QPtrList<Symbol> symbolList;
+};
+
+
+/*
+ *
+ **/
+class Writer
+{
+ public:
+ Writer( QString descFileName );
+ ~Writer();
+
+ //types of effects implemented
+ enum effectType { NoEffect = 0, Sequence, Fun1, Fun2 };
+
+ //call this function to add a sentence to the renderer
+ void spawnWords( QString phrase, effectType fx = NoEffect );
+
+ //called to get the words on screen using OpenGL
+ //Note: the context must be set up. Words are drawn on XY plane
+ //inside a rectangle with 10 units's side.
+ void render( double dT );
+
+ private:
+ //misc utility functions
+ bool loadMap( QString );
+
+ //texture 'references' used by GL to delete allocated textures
+ int numTextures;
+ unsigned int texArray[16];
+
+ //list of words and map of symbols
+ QPtrList<Word> wordList;
+ QMap<char, Symbol *> symbolMap;
+
+ //disables standard constructor
+ Writer();
+};
+
+#endif