Changeset 7450 in orxonox.OLD for trunk/src/lib/graphics/text_engine/text.cc

Timestamp:

Apr 29, 2006, 9:38:44 PM (18 years ago)

Author:

bensch

Message:

orxonox/trunk: added MultiLineText a Text for multiple line-input, that should automatically shilft position

File:

• trunk/src/lib/graphics/text_engine/text.cc (modified) (6 diffs)

trunk/src/lib/graphics/text_engine/text.cc

@@ -85 +85 @@
   if (oldFont != NULL && oldFont != Font::getDefaultFont())
     ResourceManager::getInstance()->unload(oldFont);
+
+  this->setupTextWidth();
 }
 
@@ -95 +97 @@
   this->text = text;
 
-  // setting up the Text-Width if DYNAMIC
-  //  if (this->type & TEXT_RENDER_DYNAMIC && this->getAlignment() != TEXT_ALIGN_LEFT && this->font != NULL)
-  const Font* calcSizeFont = this->font;
-  if (calcSizeFont != NULL || (calcSizeFont = Font::getDefaultFont()) != NULL)
-  {
-    Glyph** glyphArray = calcSizeFont->getGlyphArray();
-
-    float width = 0;
-    if (!this->text.empty())
-    {
-      for (unsigned int i = 0; i < this->text.size(); i++)
-      {
-        if(glyphArray[this->text[i]] != NULL)
-        {
-          width += glyphArray[this->text[i]]->advance;
-        }
-      }
-      this->setSizeX2D(width *this->getSizeY2D());
-    }
-  }
+  this->setupTextWidth();
 }
 
@@ -139 +122 @@
   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, GL_MODULATE );
 
-  Glyph** glyphArray = this->font->getGlyphArray();
   glBindTexture(GL_TEXTURE_2D, font->getTexture());
   glTranslatef(getAbsCoor2D().x, getAbsCoor2D().y, 0);
@@ -149 +131 @@
   for (unsigned int i = 0; i < this->text.size(); i++)
   {
-    if(likely((tmpGlyph = glyphArray[this->text[i]]) != NULL))
+    if(likely((tmpGlyph = this->getFont()->getGlyphArray()[this->text[i]]) != NULL))
     {
       glTexCoord2f(tmpGlyph->texCoord[1], tmpGlyph->texCoord[2]);
-      glVertex2d(posX+tmpGlyph->maxX*this->getSizeY2D(), 0);
+      glVertex2d(posX+tmpGlyph->maxX*this->getSize(), 0);
 
       glTexCoord2f(tmpGlyph->texCoord[1], tmpGlyph->texCoord[3]);
-      glVertex2d(posX+tmpGlyph->maxX*this->getSizeY2D(), this->getSizeY2D());
+      glVertex2d(posX+tmpGlyph->maxX*this->getSize(), this->getSize());
 
       glTexCoord2f(tmpGlyph->texCoord[0], tmpGlyph->texCoord[3]);
-      glVertex2d(posX+tmpGlyph->minX*this->getSizeY2D(), this->getSizeY2D());
+      glVertex2d(posX+tmpGlyph->minX*this->getSize(), this->getSize());
 
       glTexCoord2f(tmpGlyph->texCoord[0], tmpGlyph->texCoord[2]);
-      glVertex2d(posX+tmpGlyph->minX*this->getSizeY2D(), 0);
+      glVertex2d(posX+tmpGlyph->minX*this->getSize(), 0);
 
-      posX += tmpGlyph->advance * this->getSizeY2D();
+      posX += tmpGlyph->advance * this->getSize();
     }
   }
@@ -170 +152 @@
 }
 
+
+/**
+ * @brief setting up the Text-Width.
+ */
+void Text::setupTextWidth()
+{
+  float width = 0;
+  for (unsigned int i = 0; i < this->text.size(); i++)
+    if(this->font->getGlyphArray()[this->text[i]] != NULL)
+      width += this->font->getGlyphArray()[this->text[i]]->advance;
+  this->setSizeX2D(width *this->getSize());
+}
+
+
 /**
  * @brief prints out some nice debug information about this text
@@ -175 +171 @@
 void Text::debug() const
 {
-  PRINT(0)("=== TEXT: %s ===\n", this->text.c_str());
+  PRINT(0)("=== TEXT: %s (with Font:'%s')  displaying %s ===\n", this->getName(), this->font->getName(), this->text.c_str());
   PRINT(0)("Color: %0.2f %0.2f %0.2f\n", this->color.x, this->color.y, this->color.z);
 }
 
-
-////////////
-/// UTIL ///
-////////////
-/**
- * @brief Loads a Font from an SDL_surface into a texture.
- * @param surface The surface to make the texture of
- * @param texCoord The texture coordinates of the 4 corners of the texture
- * @returns the ID of the texture
- */
-GLuint Text::loadTexture(SDL_Surface *surface, TexCoord* texCoord)
-{
-  GLuint texture;
-  int w, h;
-  SDL_Surface *image;
-  SDL_Rect area;
-  Uint32 saved_flags;
-  Uint8  saved_alpha;
-
-  /* Use the surface width and height expanded to powers of 2 */
-  w = powerOfTwo(surface->w);
-  h = powerOfTwo(surface->h);
-  if (texCoord != NULL)
-  {
-    texCoord->minU = 0.0f;
-    texCoord->minV = 0.0f;
-    texCoord->maxU = (GLfloat)surface->w / w;
-    texCoord->maxV = (GLfloat)surface->h / h;
-  }
-  image = SDL_CreateRGBSurface(SDL_SWSURFACE,
-                               w, h,
-                               32,
-#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
-                               0x000000FF,
-                               0x0000FF00,
-                               0x00FF0000,
-                               0xFF000000
-#else
-                               0xFF000000,
-                               0x00FF0000,
-                               0x0000FF00,
-                               0x000000FF
-#endif
-                              );
-  if ( image == NULL )
-  {
-    return 0;
-  }
-
-  /* Save the alpha blending attributes */
-  saved_flags = surface->flags&(SDL_SRCALPHA|SDL_RLEACCELOK);
-  saved_alpha = surface->format->alpha;
-  if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA )
-  {
-    SDL_SetAlpha(surface, 0, 0);
-  }
-
-  /* Copy the surface into the GL texture image */
-  area.x = 0;
-  area.y = 0;
-  area.w = surface->w;
-  area.h = surface->h;
-  SDL_BlitSurface(surface, &area, image, &area);
-
-  /* Restore the alpha blending attributes */
-  if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA )
-  {
-    SDL_SetAlpha(surface, saved_flags, saved_alpha);
-  }
-
-  /* Create an OpenGL texture for the image */
-  glGenTextures(1, &texture);
-  glBindTexture(GL_TEXTURE_2D, texture);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-  glTexImage2D(GL_TEXTURE_2D,
-               0,
-               GL_RGBA,
-               w, h,
-               0,
-               GL_RGBA,
-               GL_UNSIGNED_BYTE,
-               image->pixels);
-  SDL_FreeSurface(image); /* No longer needed the data */
-
-  return texture;
-}
-
-/**
- * @brief Quick utility function for texture creation
- * @param input an integer
- * @returns the next bigger 2^n-integer than input
- */
-int Text::powerOfTwo(int input)
-{
-  int value = 1;
-
-  while ( value < input )
-    value <<= 1;
-  return value;
-}