Changeset 3700 in orxonox.OLD for orxonox/branches/textEngine/src/lib/graphics/font

Timestamp:

Mar 31, 2005, 9:28:09 PM (20 years ago)

Author:

bensch

Message:

orxonox/branches/textEngine: coloring issue, now the color is set right, and a little plastic surgery on the texCoord (struct instead of float*)

Location:

orxonox/branches/textEngine/src/lib/graphics/font

Files:

• glfont.cc (modified) (7 diffs)
• glfont.h (modified) (4 diffs)

orxonox/branches/textEngine/src/lib/graphics/font/glfont.cc

@@ -128 +128 @@
 
   this->setFont(fontFile);
+
+  this->setColor(0, 255, 0);
 
   this->setText(FONT_DEFAULT_TEXT);
@@ -239 +241 @@
   glEnable(GL_TEXTURE_2D);
   glBegin(GL_QUADS);
-  glTexCoord2f(0, 0); glVertex2i(20,   20  );
-  glTexCoord2f(1, 0); glVertex2i(20+this->textPosSize.w, 20  );
-  glTexCoord2f(1, 1); glVertex2i(20+this->textPosSize.w, 20+this->textPosSize.h);
-  glTexCoord2f(0, 1); glVertex2i(20, 20+this->textPosSize.h);
+  glTexCoord2f(this->texCoord.minU, this->texCoord.minV); glVertex2i(20,   20  );
+  glTexCoord2f(this->texCoord.maxU, this->texCoord.minV); glVertex2i(20+this->textPosSize.w, 20  );
+  glTexCoord2f(this->texCoord.maxU, this->texCoord.maxV); glVertex2i(20+this->textPosSize.w, 20+this->textPosSize.h);
+  glTexCoord2f(this->texCoord.minU, this->texCoord.maxV); glVertex2i(20, 20+this->textPosSize.h);
   glEnd();
   this->leave2DMode();
@@ -254 +256 @@
 void GLFont::createTexture(void)
 {
-  GLfloat texcoord[4];
   SDL_Surface* tmpSurf;
   if (this->texture)
@@ -260 +261 @@
   tmpSurf = TTF_RenderText_Blended(this->font, this->text, this->color);
   if (tmpSurf)
-    this->texture = loadTexture(tmpSurf, texcoord);
+    this->texture = loadTexture(tmpSurf, &texCoord);
 
   this->textPosSize.w = tmpSurf->w;
@@ -343 +344 @@
   glDisable(GL_DEPTH_TEST);
   glDisable(GL_CULL_FACE);
+  glDisable(GL_LIGHTING);  // will be set back when leaving 2D-mode
   glEnable(GL_TEXTURE_2D);
-  
+
   /* This allows alpha blending of 2D textures with the scene */
   glEnable(GL_BLEND);
@@ -381 +383 @@
    \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
+   \param texCoord The texture coordinates of the 4 corners of the texture
    \returns the ID of the texture
 */
-GLuint GLFont::loadTexture(SDL_Surface *surface, GLfloat *texcoord)
+GLuint GLFont::loadTexture(SDL_Surface *surface, TexCoord* texCoord)
 {
   GLuint texture;
@@ -396 +398 @@
   w = powerOfTwo(surface->w);
   h = powerOfTwo(surface->h);
-  texcoord[0] = 0.0f;                   /* Min X */
-  texcoord[1] = 0.0f;                   /* Min Y */
-  texcoord[2] = (GLfloat)surface->w / w;        /* Max X */
-  texcoord[3] = (GLfloat)surface->h / h;        /* Max Y */
+  texCoord->minU = 0.0f;
+  texCoord->minV = 0.0f;
+  texCoord->maxU = (GLfloat)surface->w / w;
+  texCoord->maxV = (GLfloat)surface->h / h;
   
   image = SDL_CreateRGBSurface(

orxonox/branches/textEngine/src/lib/graphics/font/glfont.h

@@ -17 +17 @@
 #define FONT_DEFAULT_COLOR_G    256                  //!< the default red green (color) of the text
 #define FONT_DEFAULT_COLOR_B    256                  //!< the default red blue (color) of the text
-#define FONT_NUM_COLORS         256                  //!< The number of colors. 
+#define FONT_NUM_COLORS         256                  //!< The number of colors.
 
 
@@ -37 +37 @@
   int bearingY;                  //!< How much is above the Origin
   int advance;                   //!< How big a Glyph would be in monospace-mode
+};
+
+//! A Struct to handel Texture Coordinates for quads
+struct TexCoord
+{
+  float minU;                      //!< The minimum U-Coordinate
+  float maxU;                      //!< The maximum U-Coordinate
+  float minV;                      //!< The minimum V-Coordinate
+  float maxV;                      //!< The maximum V-Coordinate
 };
 
@@ -73 +82 @@
   SDL_Rect textPosSize;            //!< An SDL-Rectangle representing the position and size of the Text on the screen.
   int renderStyle;                 //!< The Renderstyle
-  GLfloat* texcoord;               //!< Texture-coordinates \todo fix this to have a struct
+  TexCoord texCoord;               //!< Texture-coordinates \todo fix this to have a struct
 
   bool init(const char* fontFile, unsigned int fontSize = FONT_DEFAULT_SIZE);
@@ -88 +97 @@
   static bool checkVersion(void);
 
-  GLuint loadTexture(SDL_Surface* surface, GLfloat* texcoord);
+  GLuint loadTexture(SDL_Surface* surface, TexCoord* texCoord);
 
   static int powerOfTwo(int input);