ui loader and some refactoring

CMakeLists.txt

@@ -68,6 +68,7 @@ SET(SOURCES
     src/framework/core/engine.cpp
 
 # framework utilities
+    src/framework/util/color.cpp
     src/framework/util/util.cpp
     src/framework/util/logger.cpp
     src/framework/util/rsa.cpp
@@ -84,12 +85,13 @@ SET(SOURCES
     src/framework/graphics/graphics.cpp
 
 # framework ui
-    src/framework/ui/anchorlayout.cpp
+    src/framework/ui/uilayout.cpp
     src/framework/ui/uielement.cpp
     src/framework/ui/uielementskin.cpp
     src/framework/ui/uibuttonskin.cpp
     src/framework/ui/uicontainer.cpp
     src/framework/ui/uiskins.cpp
+    src/framework/ui/uiloader.cpp
     src/framework/ui/uipanel.cpp
     src/framework/ui/uibutton.cpp
     src/framework/ui/uilabel.cpp

src/framework/core/configs.cpp

@@ -35,7 +35,7 @@ bool Configs::load(const std::string& fileName)
         return false;
 
     std::string fileContents = g_resources.loadTextFile(fileName);
-    if(fileContents.size() == 0)
+    if(fileContents.size())
         return false;
 
     std::istringstream fin(fileContents);
@@ -52,8 +52,8 @@ bool Configs::load(const std::string& fileName)
             it.second() >> value;
             m_confsMap[key] = value;
         }
-    } catch (YAML::ParserException& e) {
+    } catch (YAML::Exception& e) {
-        logError("Malformed configuration file!");
+        logError("Malformed config file: %s", e.what());
         return false;
     }
 

src/framework/core/engine.cpp

@@ -37,7 +37,7 @@ void Engine::init()
 {
     // initialize stuff
     g_graphics.init();
-    g_fonts.init();
+    g_fonts.init("tibia-12px-rounded");
 }
 
 void Engine::terminate()
@@ -52,6 +52,7 @@ void Engine::terminate()
 
 void Engine::run()
 {
+    Font *defaultFont = g_fonts.getDefaultFont();
     int ticks = Platform::getTicks();
     int lastFpsTicks = ticks;
     int frameCount = 0;
@@ -87,8 +88,8 @@ void Engine::run()
             // render fps
             if(m_calculateFps) {
                 std::string fpsText = format("FPS: %d", fps);
-                Size textSize = g_defaultFont->calculateTextRectSize(fpsText);
+                Size textSize = defaultFont->calculateTextRectSize(fpsText);
-                g_defaultFont->renderText(fpsText, Point(g_graphics.getScreenSize().width() - textSize.width() - 10, 10));
+                defaultFont->renderText(fpsText, Point(g_graphics.getScreenSize().width() - textSize.width() - 10, 10));
             }
 
             // swap buffers
@@ -119,7 +120,7 @@ void Engine::render()
     g_graphics.beginRender();
     if(m_currentState)
         m_currentState->render();
-    g_ui->render();
+    UIContainer::getRootContainer()->render();
     g_graphics.endRender();
 }
 
@@ -132,7 +133,7 @@ void Engine::onClose()
 void Engine::onResize(const Size& size)
 {
     g_graphics.resize(size);
-    g_ui->setSize(size);
+    UIContainer::getRootContainer()->setSize(size);
 
     if(m_currentState)
         m_currentState->onResize(size);
@@ -141,7 +142,7 @@ void Engine::onResize(const Size& size)
 void Engine::onInputEvent(const InputEvent& event)
 {
     // inputs goest to gui first
-    if(!g_ui->onInputEvent(event)) {
+    if(!UIContainer::getRootContainer()->onInputEvent(event)) {
         // if gui didnt capture the input then goes to the state
         if(m_currentState)
             m_currentState->onInputEvent(event);

src/framework/core/resources.cpp

@@ -43,7 +43,7 @@ bool Resources::setWriteDir(const std::string& path)
     bool ret = (bool)PHYSFS_setWriteDir(path.c_str());
 
     if(!ret)
-        logError("Could not set the path \"%s\" as write directory, file write will not work.", path.c_str());
+        logError("Could not set the path \"%s\" as write directory, file write will not work correctly.", path.c_str());
     return ret;
 }
 

src/framework/graphics/borderedimage.cpp

@@ -84,70 +84,64 @@ void BorderedImage::draw(const Rect& screenCoords)
     if(screenCoords.size() <= m_cornersSize)
         return;
 
-    const Size& textureSize = m_texture->getSize();
     Rect rectCoords;
     Size centerSize = screenCoords.size() - m_cornersSize;
 
-    g_graphics._beginTextureRender(m_texture.get());
-
     // first the center
     rectCoords = Rect(screenCoords.left() + m_leftBorderTexCoords.width(),
                       screenCoords.top() + m_topBorderTexCoords.height(),
                       centerSize);
-    g_graphics._drawRepeatedTexturedRect(rectCoords,  m_centerTexCoords, textureSize);
+    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_centerTexCoords);
 
     // top left corner
     rectCoords = Rect(screenCoords.topLeft(),
                       m_topLeftCornerTexCoords.size());
-    g_graphics._drawTexturedRect(rectCoords,  m_topLeftCornerTexCoords, textureSize);
+    g_graphics.drawTexturedRect(rectCoords, m_texture, m_topLeftCornerTexCoords);
 
     // top
     rectCoords = Rect(screenCoords.left() + m_topLeftCornerTexCoords.width(),
                       screenCoords.topLeft().y,
                       centerSize.width(),
                       m_topBorderTexCoords.height());
-    g_graphics._drawRepeatedTexturedRect(rectCoords,  m_topBorderTexCoords, textureSize);
+    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_topBorderTexCoords);
 
 
     // top right corner
     rectCoords = Rect(screenCoords.left() + m_topLeftCornerTexCoords.width() + centerSize.width(),
                       screenCoords.top(),
                       m_topRightCornerTexCoords.size());
-    g_graphics._drawTexturedRect(rectCoords,  m_topRightCornerTexCoords, textureSize);
+    g_graphics.drawTexturedRect(rectCoords, m_texture, m_topRightCornerTexCoords);
 
     // left
     rectCoords = Rect(screenCoords.left(),
                       screenCoords.top() + m_topLeftCornerTexCoords.height(),
                       m_leftBorderTexCoords.width(),
                       centerSize.height());
-    g_graphics._drawRepeatedTexturedRect(rectCoords,  m_leftBorderTexCoords, textureSize);
+    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_leftBorderTexCoords);
 
     // right
     rectCoords = Rect(screenCoords.left() + m_leftBorderTexCoords.width() + centerSize.width(),
                       screenCoords.top() + m_topRightCornerTexCoords.height(),
                       m_rightBorderTexCoords.width(),
                       centerSize.height());
-    g_graphics._drawRepeatedTexturedRect(rectCoords,  m_rightBorderTexCoords, textureSize);
+    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_rightBorderTexCoords);
 
     // bottom left corner
     rectCoords = Rect(screenCoords.left(),
                       screenCoords.top() + m_topBorderTexCoords.height() + centerSize.height(),
                       m_bottomLeftCornerTexCoords.size());
-    g_graphics._drawTexturedRect(rectCoords,  m_bottomLeftCornerTexCoords, textureSize);
+    g_graphics.drawTexturedRect(rectCoords, m_texture, m_bottomLeftCornerTexCoords);
 
     // bottom
     rectCoords = Rect(screenCoords.left() + m_bottomLeftCornerTexCoords.width(),
                       screenCoords.top() + m_topBorderTexCoords.height() + centerSize.height(),
                       centerSize.width(),
                       m_bottomBorderTexCoords.height());
-    g_graphics._drawRepeatedTexturedRect(rectCoords,  m_bottomBorderTexCoords, textureSize);
+    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_bottomBorderTexCoords);
 
     // bottom right corner
     rectCoords = Rect(screenCoords.left() + m_bottomLeftCornerTexCoords.width() + centerSize.width(),
                       screenCoords.top() + m_topRightCornerTexCoords.height() + centerSize.height(),
                       m_bottomRightCornerTexCoords.size());
-    g_graphics._drawTexturedRect(rectCoords,  m_bottomRightCornerTexCoords, textureSize);
+    g_graphics.drawTexturedRect(rectCoords, m_texture, m_bottomRightCornerTexCoords);
-
-    //g_graphics._drawBoundingRect(screenCoords, Color(0xFF00FF00), 1);
-    g_graphics._endTextureRender();
 }

src/framework/graphics/font.cpp

@@ -27,11 +27,7 @@
 #include "textures.h"
 #include "graphics.h"
 
-Font::Font() :
+
-    m_glyphHeight(10),
-    m_topMargin(0)
-{
-}
 
 void Font::calculateGlyphsWidthsAutomatically(const Size& glyphSize)
 {
@@ -73,12 +69,11 @@ bool Font::load(const std::string& file)
 {
     std::string fileContents = g_resources.loadTextFile(file);
     if(!fileContents.size()) {
-        logError("Empty font file \"%s",  file.c_str());
+        logError("Coult not load font file \"%s",  file.c_str());
         return false;
     }
 
     std::istringstream fin(fileContents);
-
     std::string textureName;
     Size glyphSize;
 
@@ -88,22 +83,25 @@ bool Font::load(const std::string& file)
         YAML::Node doc;
         parser.GetNextDocument(doc);
 
+        // required values
         doc["glyph height"] >> m_glyphHeight;
-        doc["glyph spacing"] >> m_glyphSpacing;
-        doc["top margin"] >> m_topMargin;
         doc["image glyph size"] >> glyphSize;
         doc["image"] >> textureName;
 
+        // optional values
+        if(doc.FindValue("glyph spacing"))
+            doc["glyph spacing"] >> m_glyphSpacing;
+        if(doc.FindValue("top margin"))
+            doc["top margin"] >> m_topMargin;
+
+        // load texture
         m_texture = g_textures.get("fonts/" + textureName);
         if(!m_texture) {
-            logError("Failed to load image for font \"%s\"", file.c_str());
+            logError("Failed to load image for font file \"%s\"", file.c_str());
             return false;
         }
 
-        // set glyphs height
+        // auto calculate widths
-        for(int glyph = 32; glyph < 256; ++glyph) {
-        }
-
         calculateGlyphsWidthsAutomatically(glyphSize);
 
         // read custom widths
@@ -125,9 +123,8 @@ bool Font::load(const std::string& file)
                                                  m_glyphsSize[glyph].width(),
                                                  m_glyphHeight);
         }
-
+    } catch (YAML::Exception& e) {
-    } catch (YAML::ParserException& e) {
+        logError("Malformed font file \"%s\":\n  %s", file.c_str(), e.what());
-        logError("Malformed font file \"%s\"", file.c_str());
         return false;
     }
 
@@ -146,18 +143,12 @@ void Font::renderText(const std::string& text,
                     const Rect& screenCoords,
                     int align,
                     const Color& color,
-                    const Point& startInternalPos,
+                    const Point& startInternalPos)
-                    bool debug)
 {
     // prevent glitches from invalid rects
     if(!screenCoords.isValid())
         return;
 
-    // begin texture rendering
-    g_graphics.setColor(color);
-    g_graphics._beginTextureRender(m_texture.get());
-
-    const Size& textureSize = m_texture->getSize();
     int textLenght = text.length();
 
     // map glyphs positions
@@ -227,17 +218,8 @@ void Font::renderText(const std::string& text,
         }
 
         // render glyph
-        g_graphics._drawTexturedRect(glyphScreenCoords, glyphTextureCoords, textureSize);
+        g_graphics.drawTexturedRect(glyphScreenCoords, m_texture, glyphTextureCoords, color);
-
-        //g_graphics._drawBoundingRect(glyphScreenCoords, Color(0xFF0000FF));
     }
-
-    // end texture redering
-    g_graphics._endTextureRender();
-    g_graphics.resetColor();
-
-    if(debug)
-        g_graphics.drawBoundingRect(screenCoords.expanded(1), Color(0xFF00FF00));
 }
 
 Point* Font::calculateGlyphsPositions(const std::string& text, int align, Size *textBoxSize)

src/framework/graphics/font.h

@@ -45,8 +45,10 @@ enum EAlign {
 class Font
 {
 public:
-    Font();
+    Font(const std::string& name) :
-    virtual ~Font() { }
+        m_name(name),
+        m_glyphHeight(10),
+        m_topMargin(0) { }
 
     /// Load font from file
     bool load(const std::string &file);
@@ -62,9 +64,8 @@ public:
     void renderText(const std::string& text,
                     const Rect& screenCoords,
                     int align = ALIGN_TOP_LEFT,
-                    const Color& color = Color(0xFFFFFFFF),
+                    const Color& color = Color::white,
-                    const Point& startInternalPos = Point(),
+                    const Point& startInternalPos = Point());
-                    bool debug = false);
 
     /// Calculate glyphs positions to use on render, also calculates textBoxSize if wanted
     Point *calculateGlyphsPositions(const std::string& text, int align = ALIGN_TOP_LEFT, Size *textBoxSize = NULL);
@@ -72,9 +73,12 @@ public:
     /// Simulate render and calculate text size
     Size calculateTextRectSize(const std::string& text);
 
+    const std::string& getName() const { return m_name; }
+
 private:
     void calculateGlyphsWidthsAutomatically(const Size& glyphSize);
 
+    std::string m_name;
     int m_glyphHeight;
     int m_topMargin;
     Size m_glyphSpacing;
@@ -83,4 +87,6 @@ private:
     Size m_glyphsSize[256];
 };
 
+typedef std::shared_ptr<Font> FontPtr;
+
 #endif // FONT_H

src/framework/graphics/fonts.cpp

@@ -23,13 +23,11 @@
 
 
 #include "fonts.h"
-#include "font.h"
 #include "core/resources.h"
 
 Fonts g_fonts;
-Font *g_defaultFont = NULL;
 
-void Fonts::init()
+void Fonts::init(const std::string& defaultFontName)
 {
     // load all fonts
     std::list<std::string> files = g_resources.getDirectoryFiles("fonts");
@@ -37,27 +35,28 @@ void Fonts::init()
         if(boost::ends_with(file, ".yml")) {
             std::string name = file;
             boost::erase_first(name, ".yml");
-            std::shared_ptr<Font> font(new Font);
+            FontPtr font(new Font(name));
-            font->load("fonts/" + file);
+            if(font->load("fonts/" + file)) {
-            m_fonts[name] = font;
+                m_fonts.push_back(font);
+
+                if(name == defaultFontName)
+                    m_defaultFont = font;
+            }
         }
     }
 
-    // set default font
+    if(!m_defaultFont)
-    g_defaultFont = get("tibia-12px-rounded");
+        logFatal("Could not load the default font \"%s\"\n", defaultFontName.c_str());
-    if(!g_defaultFont)
-        logFatal("Default font not found!");
 }
 
 Font* Fonts::get(const std::string& fontName)
 {
     // find font by name
-    auto it = m_fonts.find(fontName);
+    for(auto it = m_fonts.begin(); it != m_fonts.end(); ++it) {
-    if(it != m_fonts.end()) {
+        if((*it)->getName() == fontName)
-        return it->second.get();
+            return (*it).get();
     }
 
-    logError("Font \"%s\" not found", fontName.c_str());
+    logError("Font \"%s\" not found, returing the default one", fontName.c_str());
-    return NULL;
+    return m_defaultFont.get();
 }
-

src/framework/graphics/fonts.h

@@ -34,19 +34,22 @@ public:
     Fonts() { }
 
     /// Initialize all fonts
-    void init();
+    void init(const std::string& defaultFontName);
-
-    /// Get a font by name
-    Font *get(const std::string& fontName);
 
     /// Terminate all fonts
     void terminate() { }
 
+    /// Get a font by name
+    Font *get(const std::string& fontName);
+
+    /// Get the default font
+    Font *getDefaultFont() { return m_defaultFont.get(); };
+
 private:
-    std::map<std::string, std::shared_ptr<Font> > m_fonts;
+    std::vector<FontPtr> m_fonts;
+    FontPtr m_defaultFont;
 };
 
 extern Fonts g_fonts;
-extern Font *g_defaultFont;
 
 #endif // FONTS_H

src/framework/graphics/graphics.cpp

@@ -123,49 +123,19 @@ void Graphics::endRender()
 
 }
 
-
+void Graphics::drawTexturedRect(const Rect& screenCoords, const TexturePtr& texture, const Rect& textureCoords, const Color& color)
-void Graphics::setColor(const Color& color)
 {
+    if(screenCoords.size().isEmpty())
+        return;
+
     glColor4ubv(color.rgbaPtr());
-}
-
-void Graphics::resetColor()
-{
-    glColor4ub(0xFF, 0xFF, 0xFF, 0xFF);
-}
-
-void Graphics::_beginTextureRender(const Texture *texture)
-{
-    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
-    glBegin(GL_QUADS);
-}
-
-void Graphics::_endTextureRender()
-{
-    glEnd();
-}
-
-void Graphics::drawTexturedRect(const Rect& screenCoords, const Texture *texture, const Rect& textureCoords)
-{
-    if(screenCoords.size().isEmpty())
-        return;
-
-    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
-    glBegin(GL_QUADS);
-    _drawTexturedRect(screenCoords, textureCoords, texture->getSize());
-    glEnd();
-}
-
-void Graphics::_drawTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize)
-{
-    if(screenCoords.size().isEmpty())
-        return;
 
     // rect correction for opengl
     int right = screenCoords.right() + 1;
     int bottom = screenCoords.bottom() + 1;
     int top = screenCoords.top();
     int left = screenCoords.left();
+    const Size& textureSize = texture->getSize();
 
     float textureRight = 0.0f;
     float textureBottom = 1.0f;
@@ -179,24 +149,18 @@ void Graphics::_drawTexturedRect(const Rect& screenCoords, const Rect& textureCo
         textureLeft = (float)textureCoords.left() / textureSize.width();
     }
 
+    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
+    glBegin(GL_QUADS);
+
     glTexCoord2f(textureLeft,  textureTop);    glVertex2i(left,  top);
     glTexCoord2f(textureLeft,  textureBottom); glVertex2i(left,  bottom);
     glTexCoord2f(textureRight, textureBottom); glVertex2i(right, bottom);
     glTexCoord2f(textureRight, textureTop);    glVertex2i(right, top);
-}
 
-void Graphics::drawRepeatedTexturedRect(const Rect& screenCoords, const Texture* texture, const Rect& texCoords)
-{
-    if(screenCoords.size().isEmpty())
-        return;
-
-    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
-    glBegin(GL_QUADS);
-    _drawRepeatedTexturedRect(screenCoords, texCoords, texture->getSize());
     glEnd();
 }
 
-void Graphics::_drawRepeatedTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize)
+void Graphics::drawRepeatedTexturedRect(const Rect& screenCoords, const TexturePtr& texture, const Rect& textureCoords, const Color& color)
 {
     if(screenCoords.size().isEmpty())
         return;
@@ -219,20 +183,19 @@ void Graphics::_drawRepeatedTexturedRect(const Rect& screenCoords, const Rect& t
             }
 
             partialCoords.translate(screenCoords.topLeft());
-            _drawTexturedRect(partialCoords, partialTextureCoords, textureSize);
+            drawTexturedRect(partialCoords, texture, partialTextureCoords, color);
         }
     }
 }
 
-
+void Graphics::drawFilledRect(const Rect& screenCoords, const Color& color)
-void Graphics::drawColoredRect(const Rect& screenCoords, const Color& color)
 {
     if(screenCoords.size().isEmpty())
         return;
 
     glDisable(GL_TEXTURE_2D);
 
-    setColor(color);
+    glColor4ubv(color.rgbaPtr());
 
     // rect correction for opengl
     int right = screenCoords.right() + 1;
@@ -248,8 +211,6 @@ void Graphics::drawColoredRect(const Rect& screenCoords, const Color& color)
     glEnd();
 
     glEnable(GL_TEXTURE_2D);
-
-    resetColor();
 }
 
 
@@ -260,7 +221,7 @@ void Graphics::drawBoundingRect(const Rect& screenCoords, const Color& color, in
 
     glDisable(GL_TEXTURE_2D);
 
-    setColor(color);
+    glColor4ubv(color.rgbaPtr());
 
     // rect correction for opengl
     int right = screenCoords.right()+1;
@@ -295,13 +256,4 @@ void Graphics::drawBoundingRect(const Rect& screenCoords, const Color& color, in
     glEnd();
 
     glEnable(GL_TEXTURE_2D);
-
-    resetColor();
-}
-
-void Graphics::_drawBoundingRect(const Rect& screenCoords, const Color& color, int innerLineWidth)
-{
-    glEnd();
-    drawBoundingRect(screenCoords, color, innerLineWidth);
-    glBegin(GL_QUADS);
 }

src/framework/graphics/graphics.h

@@ -26,15 +26,17 @@
 #define GRAPHICS_H
 
 #include "prerequisites.h"
-
+#include "texture.h"
-class Texture;
 
 class Graphics
 {
 public:
     Graphics() { }
 
+    /// Initialize graphics
     void init();
+
+    /// Termiante graphics
     void terminate();
 
     /// Check if a GL extension is supported
@@ -54,21 +56,10 @@ public:
 
     const Size& getScreenSize() const { return m_screenSize; }
 
-    void setColor(const Color& color);
+    void drawTexturedRect(const Rect& screenCoords, const TexturePtr& texture, const Rect& textureCoords = Rect(), const Color& color = Color::white);
-    void resetColor();
+    void drawRepeatedTexturedRect(const Rect& screenCoords, const TexturePtr& texture, const Rect& textureCoords, const Color& color = Color::white);
-
+    void drawFilledRect(const Rect& screenCoords, const Color& color);
-    // high level rendering
+    void drawBoundingRect(const Rect& screenCoords, const Color& color = Color::green, int innerLineWidth = 1);
-    void drawTexturedRect(const Rect& screenCoords, const Texture *texture, const Rect& texCoords = Rect());
-    void drawRepeatedTexturedRect(const Rect& screenCoords, const Texture *texture, const Rect& texCoords);
-    void drawColoredRect(const Rect& screenCoords, const Color& color);
-    void drawBoundingRect(const Rect& screenCoords, const Color& color, int innerLineWidth = 1);
-
-    // lower level rendering
-    void _beginTextureRender(const Texture *texture);
-    void _drawTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize);
-    void _drawRepeatedTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize);
-    void _drawBoundingRect(const Rect& screenCoords, const Color& color, int innerLineWidth = 1);
-    void _endTextureRender();
 
 private:
     Size m_screenSize;

src/framework/graphics/image.cpp

@@ -37,14 +37,9 @@ Image::Image(const std::string& texture, Rect textureCoords) :
     m_texture = g_textures.get(texture);
 }
 
-void Image::enableBilinearFilter()
-{
-    m_texture->enableBilinearFilter();
-}
-
 void Image::draw(const Rect& screenCoords)
 {
-    g_graphics.drawTexturedRect(screenCoords, m_texture.get(), m_textureCoords);
+    g_graphics.drawTexturedRect(screenCoords, m_texture, m_textureCoords);
 }
 
 

src/framework/graphics/image.h

@@ -36,7 +36,7 @@ public:
     Image(const std::string& texture);
     Image(const std::string& texture, Rect textureCoords);
 
-    void enableBilinearFilter();
+    /// Draw image on screen
     virtual void draw(const Rect& screenCoords);
 
 protected:

src/framework/graphics/texture.cpp

@@ -29,9 +29,9 @@
 
 Texture::Texture(int width, int height, int components, uchar *pixels)
 {
-    m_size.setWidth(width);
+    m_size.setSize(width, height);
-    m_size.setHeight(height);
 
+    // generate opengl  texture
     glGenTextures(1, &m_textureId);
     glBindTexture(GL_TEXTURE_2D, m_textureId);
 
@@ -51,11 +51,14 @@ Texture::Texture(int width, int height, int components, uchar *pixels)
             break;
     }
 
+    // load the pixels into opengl memory
     glTexImage2D(GL_TEXTURE_2D, 0, components, width, height, 0, format, GL_UNSIGNED_BYTE, pixels);
 
+    // disable texture border
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
+    // nearest filtering
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 }
@@ -75,6 +78,7 @@ void Texture::enableBilinearFilter()
 
 uchar *Texture::getPixels()
 {
+    // copy pixels from opengl memory
     uchar *pixels = new uchar[m_size.area()*4];
     glBindTexture(GL_TEXTURE_2D, m_textureId);
     glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

src/framework/graphics/textures.cpp

@@ -41,23 +41,22 @@ TexturePtr Textures::get(const std::string& textureFile)
             texture = it->second.lock();
     }
 
-    if(!texture) { // load texture
+    // texture not found, load it
+    if(!texture) {
         // currently only png textures are supported
-        if(!boost::ends_with(textureFile, ".png")) {
+        if(!boost::ends_with(textureFile, ".png"))
             logFatal("Unable to load texture %s, file format no supported.", textureFile.c_str());
-            return texture;
-        }
 
+        // load texture file data
         uint fileSize;
         uchar *textureFileData = g_resources.loadFile(textureFile, &fileSize);
-        if(!textureFileData) {
+        if(!textureFileData)
             logFatal("Unable to load texture %s, file could not be read.", textureFile.c_str());
-            return texture;
-        }
 
+        // load the texture
         texture = TexturePtr(TextureLoader::loadPNG(textureFileData));
         if(!texture)
-            logFatal("Unable to load texture %s, loading error.", textureFile.c_str());
+            logFatal("Unable to load texture %s", textureFile.c_str());
         delete[] textureFileData;
     }
 

src/framework/ui/ui.h

@@ -36,5 +36,6 @@
 #include "uiskins.h"
 #include "uiwindow.h"
 #include "uitextedit.h"
+#include "uiloader.h"
 
 #endif // UI_H

src/framework/ui/uibutton.cpp

@@ -26,12 +26,6 @@
 #include "graphics/fonts.h"
 #include "graphics/font.h"
 
-void UIButton::load(const YAML::Node& node)
-{
-    UIElement::load(node);
-    node["text"] >> m_text;
-}
-
 void UIButton::render()
 {
     UIElement::render();

src/framework/ui/uibutton.h

@@ -40,11 +40,12 @@ public:
             UIElement();
         }
 
-    void load(const YAML::Node& node);
-
     virtual void render();
     bool onInputEvent(const InputEvent& event);
 
+    void setText(const std::string& text) { m_text = text; }
+    const std::string& getText() const { return m_text; }
+
     UI::EButtonState getState() { return m_state; }
 
     void onClick(const Callback& callback) { m_buttonClickCallback = callback; }

src/framework/ui/uicontainer.cpp

@@ -30,90 +30,11 @@
 #include "uitextedit.h"
 #include "uiwindow.h"
 
-UIContainerPtr g_ui(new UIContainer);
+UIContainerPtr rootContainer(new UIContainer);
 
-UIElementPtr createElementFromDescription(std::string elementId)
+UIContainerPtr& UIContainer::getRootContainer()
 {
-    UIElementPtr element;
+    return rootContainer;
-
-    std::vector<std::string> split;
-    boost::split(split, elementId, boost::is_any_of("-"));
-    if(split.size() != 2) {
-        logError("incorrect element id format: %s", elementId.c_str());
-        return element;
-    }
-
-    std::string elementType = split[1];
-    if(elementType == "panel") {
-        element = UIElementPtr(new UIPanel);
-    } else if(elementType == "button") {
-        element = UIElementPtr(new UIButton);
-    } else if(elementType == "label") {
-        element = UIElementPtr(new UILabel);
-    } else if(elementType == "window") {
-        element = UIElementPtr(new UIWindow);
-    } else if(elementType == "textEdit") {
-        element = UIElementPtr(new UITextEdit);
-    }
-
-    if(element)
-        element->setId(elementId);
-
-    return element;
-}
-
-void UIContainer::load(const YAML::Node& node)
-{
-    UIElement::load(node);
-
-    for(auto it = node.begin(); it != node.end(); ++it) {
-        std::string elementDesc;
-        it.first() >> elementDesc;
-
-        if(elementDesc.find("-") != std::string::npos) {
-            UIElementPtr element = createElementFromDescription(elementDesc);
-            if(element) {
-                addChild(element);
-                element->load(it.second());
-            }
-        }
-    }
-}
-
-UIContainerPtr UIContainer::load(const std::string& file)
-{
-    //TODO: handle errors
-    //TODO: display errors in which file and line
-    UIContainerPtr container;
-
-    std::string fileContents = g_resources.loadTextFile(file);
-    if(!fileContents.size()) {
-        logFatal("could not load ui file \"%s",  file.c_str());
-        return UIContainerPtr();
-    }
-
-    std::istringstream fin(fileContents);
-
-    try {
-        YAML::Parser parser(fin);
-
-        YAML::Node doc;
-        parser.GetNextDocument(doc);
-
-        std::string elementDesc;
-        doc.begin().first() >> elementDesc;
-        UIElementPtr element = createElementFromDescription(elementDesc);
-        if(element) {
-            g_ui->addChild(element);
-            element->load(doc.begin().second());
-            return element->asUIContainer();
-        }
-    } catch (YAML::ParserException& e) {
-        logError("Malformed ui file \"%s\": %s", file.c_str(), e.what());
-        return UIContainerPtr();
-    }
-
-    return container;
 }
 
 void UIContainer::addChild(UIElementPtr child)

src/framework/ui/uicontainer.h

@@ -34,11 +34,6 @@ public:
     UIContainer(UI::EElementType type = UI::Container) : UIElement(type) { }
     virtual ~UIContainer() { }
 
-    virtual void load(const YAML::Node& node);
-
-    //TODO: move this shit
-    static UIContainerPtr load(const std::string& file);
-
     void addChild(UIElementPtr child);
     void removeChild(UIElementPtr child);
     UIElementPtr getChildById(const std::string& id);
@@ -56,11 +51,11 @@ public:
 
     UIContainerPtr asUIContainer() { return std::static_pointer_cast<UIContainer>(shared_from_this()); }
 
+    static UIContainerPtr& getRootContainer();
+
 protected:
     std::list<UIElementPtr> m_children;
     UIElementPtr m_activeElement;
 };
 
-extern UIContainerPtr g_ui;
-
 #endif // UICONTAINER_H

src/framework/ui/uielement.cpp

@@ -27,7 +27,7 @@
 #include "uielementskin.h"
 
 UIElement::UIElement(UI::EElementType type) :
-    AnchorLayout(),
+    UILayout(),
     m_type(type),
     m_skin(NULL),
     m_visible(true),
@@ -38,107 +38,6 @@ UIElement::UIElement(UI::EElementType type) :
         setSkin(g_uiSkins.getElementSkin(type));
 }
 
-void UIElement::load(const YAML::Node& node)
-{
-    if(node.FindValue("skin"))
-        setSkin(g_uiSkins.getElementSkin(m_type, node["skin"]));
-
-    if(node.FindValue("size")) {
-        Size size;
-        node["size"] >> size;
-        setSize(size);
-    }
-
-    int margin;
-    if(node.FindValue("margin.left")) {
-        node["margin.left"] >> margin;
-        setMarginLeft(margin);
-    }
-
-    if(node.FindValue("margin.right")) {
-        node["margin.right"] >> margin;
-        setMarginRight(margin);
-    }
-
-    if(node.FindValue("margin.top")) {
-        node["margin.top"] >> margin;
-        setMarginTop(margin);
-    }
-
-    if(node.FindValue("margin.bottom")) {
-        node["margin.bottom"] >> margin;
-        setMarginBottom(margin);
-    }
-
-    if(node.FindValue("anchors.left"))
-        loadAnchor(ANCHOR_LEFT, node["anchors.left"]);
-
-    if(node.FindValue("anchors.right"))
-        loadAnchor(ANCHOR_RIGHT, node["anchors.right"]);
-
-    if(node.FindValue("anchors.top"))
-        loadAnchor(ANCHOR_TOP, node["anchors.top"]);
-
-    if(node.FindValue("anchors.bottom"))
-        loadAnchor(ANCHOR_BOTTOM, node["anchors.bottom"]);
-
-    if(node.FindValue("anchors.horizontalCenter"))
-        loadAnchor(ANCHOR_HORIZONTAL_CENTER, node["anchors.horizontalCenter"]);
-
-    if(node.FindValue("anchors.verticalCenter"))
-        loadAnchor(ANCHOR_VERTICAL_CENTER, node["anchors.verticalCenter"]);
-}
-
-void UIElement::loadAnchor(EAnchorType type, const YAML::Node& node)
-{
-    std::string anchorDescription;
-    node >> anchorDescription;
-
-    std::vector<std::string> split;
-    boost::split(split, anchorDescription, boost::is_any_of("."));
-    if(split.size() != 2) {
-        logError("wrong anchors description: %s", anchorDescription.c_str());
-        return;
-    }
-
-    std::string relativeElementId = split[0];
-    std::string relativeAnchorTypeId = split[1];
-    EAnchorType relativeAnchorType;
-
-    if(relativeAnchorTypeId == "left")
-        relativeAnchorType = ANCHOR_LEFT;
-    else if(relativeAnchorTypeId == "right")
-        relativeAnchorType = ANCHOR_RIGHT;
-    else if(relativeAnchorTypeId == "top")
-        relativeAnchorType = ANCHOR_TOP;
-    else if(relativeAnchorTypeId == "bottom")
-        relativeAnchorType = ANCHOR_BOTTOM;
-    else if(relativeAnchorTypeId == "horizontalCenter")
-        relativeAnchorType = ANCHOR_HORIZONTAL_CENTER;
-    else if(relativeAnchorTypeId == "verticalCenter")
-        relativeAnchorType = ANCHOR_VERTICAL_CENTER;
-    else {
-        logError("wrong anchors description: %s", anchorDescription.c_str());
-        return;
-    }
-
-    AnchorLayoutPtr relativeElement;
-    if(relativeElementId == "parent" && getParent()) {
-        relativeElement = getParent()->asAnchorLayout();
-    } else {
-        UIElementPtr element = g_ui->recursiveGetChildById(relativeElementId);
-        if(element)
-            relativeElement = element->asAnchorLayout();
-    }
-
-    if(relativeElement) {
-        addAnchor(type, AnchorLine(relativeElement, relativeAnchorType));
-    } else {
-        logError("anchoring has failed: %s", anchorDescription.c_str());
-        return;
-    }
-}
-
 bool UIElement::setSkin(const std::string& skinName)
 {
     setSkin(g_uiSkins.getElementSkin(m_type, skinName));

src/framework/ui/uielement.h

@@ -28,7 +28,7 @@
 #include "prerequisites.h"
 #include "core/input.h"
 #include "uiconstants.h"
-#include "anchorlayout.h"
+#include "uilayout.h"
 
 class UIElementSkin;
 
@@ -40,7 +40,7 @@ class UIElement;
 typedef std::shared_ptr<UIElement> UIElementPtr;
 typedef std::weak_ptr<UIElement> UIElementWeakPtr;
 
-class UIElement : public AnchorLayout
+class UIElement : public UILayout
 {
 public:
     UIElement(UI::EElementType type = UI::Element);
@@ -49,9 +49,6 @@ public:
     virtual void render();
     virtual bool onInputEvent(const InputEvent& event) { return false; }
 
-    virtual void load(const YAML::Node& node);
-    void loadAnchor(EAnchorType type, const YAML::Node& node);
-
     bool setSkin(const std::string& skinName);
     void setSkin(UIElementSkin *skin);
     UIElementSkin *getSkin() { return m_skin; }

src/framework/ui/uilabel.cpp

@@ -35,15 +35,6 @@ UILabel::UILabel(const std::string& text, Font* font) :
     setSize(m_font->calculateTextRectSize(text));
 }
 
-void UILabel::load(const YAML::Node& node)
-{
-    UIElement::load(node);
-
-    std::string text;
-    node["text"] >> text;
-    setText(text);
-}
-
 void UILabel::render()
 {
     m_font->renderText(m_text, getRect(), ALIGN_LEFT, Color(0xFFBFBFBF));

src/framework/ui/uilabel.h

@@ -35,8 +35,6 @@ class UILabel : public UIElement
 public:
     UILabel(const std::string& text = std::string(), Font *font = NULL);
 
-    void load(const YAML::Node& node);
-
     void render();
 
     void setText(const std::string& text);

src/framework/ui/uilayout.cpp

@@ -22,12 +22,12 @@
  */
 
 
-#include "anchorlayout.h"
+#include "uilayout.h"
 #include "uielement.h"
 
 int AnchorLine::getPos() const
 {
-    AnchorLayoutPtr element = m_relativeElement.lock();
+    UILayoutPtr element = m_relativeElement.lock();
     if(element) {
         switch(m_anchorType) {
             case ANCHOR_LEFT:
@@ -50,30 +50,30 @@ int AnchorLine::getPos() const
     return 0;
 }
 
-void AnchorLayout::setSize(const Size& size)
+void UILayout::setSize(const Size& size)
 {
     m_rect.setSize(size);
     recalculateAnchors();
 }
 
-void AnchorLayout::setRect(const Rect& rect)
+void UILayout::setRect(const Rect& rect)
 {
     m_rect = rect;
     recalculateAnchors();
 }
 
-void AnchorLayout::addAnchor(EAnchorType type, const AnchorLine& anchorLine)
+void UILayout::addAnchor(EAnchorType type, const AnchorLine& anchorLine)
 {
     if(!anchorLine.isValid()) {
         logError("anchoring for an element has failed, got an invalid anchor line");
         return;
     }
     m_anchors[type] = anchorLine;
-    anchorLine.getRelativeElement()->addAnchoredElement(asAnchorLayout());
+    anchorLine.getRelativeElement()->addAnchoredElement(asUILayout());
     recalculateAnchors();
 }
 
-void AnchorLayout::addAnchoredElement(AnchorLayoutPtr anchoredElement)
+void UILayout::addAnchoredElement(UILayoutPtr anchoredElement)
 {
     bool found = false;
     for(auto it = m_anchoredElements.begin(); it != m_anchoredElements.end(); ++it) {
@@ -86,7 +86,7 @@ void AnchorLayout::addAnchoredElement(AnchorLayoutPtr anchoredElement)
         m_anchoredElements.push_back(anchoredElement);
 }
 
-void AnchorLayout::recalculateAnchors()
+void UILayout::recalculateAnchors()
 {
     // horizontal
     if(m_anchors[ANCHOR_HORIZONTAL_CENTER].isValid()) {
@@ -117,7 +117,7 @@ void AnchorLayout::recalculateAnchors()
     }
 
     for(auto it = m_anchoredElements.begin(); it != m_anchoredElements.end(); ++it) {
-        AnchorLayoutPtr element = (*it).lock();
+        UILayoutPtr element = (*it).lock();
         if(element)
             element->recalculateAnchors();
     }

src/framework/ui/uilayout.h

@@ -0,0 +1,120 @@
+/* The MIT License
+ *
+ * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#ifndef UILAYOUT_H
+#define UILAYOUT_H
+
+#include "prerequisites.h"
+#include "uiconstants.h"
+
+enum EAnchorType {
+    ANCHOR_LEFT = 0,
+    ANCHOR_RIGHT,
+    ANCHOR_TOP,
+    ANCHOR_BOTTOM,
+    ANCHOR_HORIZONTAL_CENTER,
+    ANCHOR_VERTICAL_CENTER,
+    ANCHOR_NONE
+};
+
+class UILayout;
+typedef std::shared_ptr<UILayout> UILayoutPtr;
+typedef std::weak_ptr<UILayout> UILayoutWeakPtr;
+
+class AnchorLine
+{
+public:
+    AnchorLine() : m_anchorType(ANCHOR_NONE) { }
+    AnchorLine(const AnchorLine& other) :
+        m_relativeElement(other.m_relativeElement), m_anchorType(other.m_anchorType) { }
+    AnchorLine(UILayoutPtr relativeElement, EAnchorType anchorType) :
+        m_relativeElement(relativeElement), m_anchorType(anchorType) { }
+    bool isValid() const { return (m_anchorType != ANCHOR_NONE && !m_relativeElement.expired()); }
+
+    int getPos() const;
+    EAnchorType getAnchorType() const { return m_anchorType; }
+    UILayoutPtr getRelativeElement() const { return m_relativeElement.lock(); }
+
+private:
+    UILayoutWeakPtr m_relativeElement;
+    EAnchorType m_anchorType;
+};
+
+class UILayout : public std::enable_shared_from_this<UILayout>
+{
+public:
+    UILayout() :
+        m_marginLeft(0),
+        m_marginRight(0),
+        m_marginTop(0),
+        m_marginBottom(0) { }
+    virtual ~UILayout() { }
+
+    void setSize(const Size& size);
+    Size getSize() { return m_rect.size(); }
+
+    void setRect(const Rect& rect);
+    const Rect& getRect() const{ return m_rect; }
+
+    void addAnchor(EAnchorType type, const AnchorLine& anchorLine);
+    void anchorLeft(const AnchorLine& anchorLine) { addAnchor(ANCHOR_LEFT, anchorLine); }
+    void anchorRight(const AnchorLine& anchorLine) { addAnchor(ANCHOR_RIGHT, anchorLine); }
+    void anchorTop(const AnchorLine& anchorLine) { addAnchor(ANCHOR_TOP, anchorLine); }
+    void anchorBottom(const AnchorLine& anchorLine) { addAnchor(ANCHOR_BOTTOM, anchorLine); }
+    void anchorHorizontalCenter(const AnchorLine& anchorLine) { addAnchor(ANCHOR_HORIZONTAL_CENTER, anchorLine); }
+    void anchorVerticalCenter(const AnchorLine& anchorLine) { addAnchor(ANCHOR_VERTICAL_CENTER, anchorLine); }
+
+    AnchorLine left() { return AnchorLine(asUILayout(), ANCHOR_LEFT); }
+    AnchorLine right() { return AnchorLine(asUILayout(), ANCHOR_RIGHT); }
+    AnchorLine top() { return AnchorLine(asUILayout(), ANCHOR_TOP); }
+    AnchorLine bottom() { return AnchorLine(asUILayout(), ANCHOR_BOTTOM); }
+    AnchorLine horizontalCenter() { return AnchorLine(asUILayout(), ANCHOR_HORIZONTAL_CENTER); }
+    AnchorLine verticalCenter() { return AnchorLine(asUILayout(), ANCHOR_VERTICAL_CENTER); }
+
+    void setMargin(int top, int left, int bottom, int right) { m_marginLeft = left; m_marginRight = right; m_marginTop = top; m_marginBottom = bottom; recalculateAnchors(); }
+    void setMargin(int horizontal, int vertical) { m_marginLeft = m_marginRight = horizontal; m_marginTop = m_marginBottom = vertical; recalculateAnchors(); }
+    void setMargin(int margin) { m_marginLeft = m_marginRight = m_marginTop = m_marginBottom = margin; recalculateAnchors(); }
+
+    void setMarginLeft(int margin) { m_marginLeft = margin; recalculateAnchors(); }
+    void setMarginRight(int margin) { m_marginRight = margin; recalculateAnchors(); }
+    void setMarginTop(int margin) { m_marginTop = margin; recalculateAnchors(); }
+    void setMarginBottom(int margin) { m_marginBottom = margin; recalculateAnchors(); }
+
+    UILayoutPtr asUILayout() { return shared_from_this(); }
+
+private:
+    void recalculateAnchors();
+    void addAnchoredElement(UILayoutPtr anchoredElement);
+
+    AnchorLine m_anchors[6];
+
+    Rect m_rect;
+    int m_marginLeft;
+    int m_marginRight;
+    int m_marginTop;
+    int m_marginBottom;
+    std::list<UILayoutWeakPtr> m_anchoredElements;
+};
+
+#endif // UILAYOUT_H

src/framework/ui/uiloader.cpp

@@ -0,0 +1,254 @@
+/* The MIT License
+ *
+ * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "uiloader.h"
+#include "core/resources.h"
+#include "ui.h"
+
+UIElementPtr UILoader::createElementFromId(const std::string& id)
+{
+    UIElementPtr element;
+
+    std::vector<std::string> split;
+    boost::split(split, id, boost::is_any_of("#"));
+    if(split.size() != 2)
+        return element;
+
+    std::string elementType = split[0];
+    std::string elementId = split[1];
+
+    if(elementType == "panel") {
+        element = UIElementPtr(new UIPanel);
+    } else if(elementType == "button") {
+        element = UIElementPtr(new UIButton);
+    } else if(elementType == "label") {
+        element = UIElementPtr(new UILabel);
+    } else if(elementType == "window") {
+        element = UIElementPtr(new UIWindow);
+    } else if(elementType == "textEdit") {
+        element = UIElementPtr(new UITextEdit);
+    }
+
+    if(element)
+        element->setId(elementId);
+
+    return element;
+}
+
+UIElementPtr UILoader::loadFile(const std::string& file, const UIContainerPtr& parent)
+{
+    std::string fileContents = g_resources.loadTextFile(file);
+    if(!fileContents.size()) {
+        logFatal("Could not load ui file \"%s",  file.c_str());
+        return UIElementPtr();
+    }
+
+    std::istringstream fin(fileContents);
+
+    try {
+        YAML::Parser parser(fin);
+
+        YAML::Node doc;
+        parser.GetNextDocument(doc);
+
+        // get element id
+        std::string elementId;
+        doc.begin().first() >> elementId;
+
+        // first we should populate all elements
+        // only after that we can load anchors
+
+        // create element interpreting it's id
+        UIElementPtr element = createElementFromId(elementId);
+        if(!element)
+            throw YAML::Exception(doc.begin().first().GetMark(), "invalid element type");
+        parent->addChild(element);
+
+        // populete it
+        if(element->asUIContainer())
+            populateContainer(element->asUIContainer(), doc.begin().second());
+
+        // now do the real load
+        loadElements(element, doc.begin().second());
+    } catch (YAML::Exception& e) {
+        logFatal("Failed to load ui file \"%s\":\n  %s", file.c_str(), e.what());
+    }
+
+    return UIElementPtr();
+}
+
+void UILoader::populateContainer(const UIContainerPtr& parent, const YAML::Node& node)
+{
+    for(auto it = node.begin(); it != node.end(); ++it) {
+        std::string id;
+        it.first() >> id;
+
+        // check if it's and element id
+        if(id.find("#") != std::string::npos) {
+            UIElementPtr element = createElementFromId(id);
+            if(!element)
+                throw YAML::Exception(it.first().GetMark(), "invalid element type");
+            parent->addChild(element);
+
+            // also populate this element if it's a parent
+            if(element->asUIContainer())
+                populateContainer(element->asUIContainer(), it.second());
+        }
+    }
+}
+
+void UILoader::loadElements(const UIElementPtr& parent, const YAML::Node& node)
+{
+    loadElement(parent, node);
+
+    if(parent->asUIContainer()) {
+        UIContainerPtr container = parent->asUIContainer();
+        for(auto it = node.begin(); it != node.end(); ++it) {
+            std::string id;
+            it.first() >> id;
+
+            // check if it's and element id
+            if(id.find("#") != std::string::npos) {
+                std::vector<std::string> split;
+                boost::split(split, id, boost::is_any_of("#"));
+                loadElements(container->getChildById(split[1]), it.second());
+            }
+        }
+    }
+}
+
+void UILoader::loadElement(const UIElementPtr& element, const YAML::Node& node)
+{
+    std::string tmp;
+
+    if(node.FindValue("skin"))
+        element->setSkin(g_uiSkins.getElementSkin(element->getElementType(), node["skin"]));
+
+    if(node.FindValue("size")) {
+        Size size;
+        node["size"] >> size;
+        element->setSize(size);
+    }
+
+    int margin;
+    if(node.FindValue("margin.left")) {
+        node["margin.left"] >> margin;
+        element->setMarginLeft(margin);
+    }
+
+    if(node.FindValue("margin.right")) {
+        node["margin.right"] >> margin;
+        element->setMarginRight(margin);
+    }
+
+    if(node.FindValue("margin.top")) {
+        node["margin.top"] >> margin;
+        element->setMarginTop(margin);
+    }
+
+    if(node.FindValue("margin.bottom")) {
+        node["margin.bottom"] >> margin;
+        element->setMarginBottom(margin);
+    }
+
+    if(node.FindValue("anchors.left"))
+        loadElementAnchor(element, ANCHOR_LEFT, node["anchors.left"]);
+
+    if(node.FindValue("anchors.right"))
+        loadElementAnchor(element, ANCHOR_RIGHT, node["anchors.right"]);
+
+    if(node.FindValue("anchors.top"))
+        loadElementAnchor(element, ANCHOR_TOP, node["anchors.top"]);
+
+    if(node.FindValue("anchors.bottom"))
+        loadElementAnchor(element, ANCHOR_BOTTOM, node["anchors.bottom"]);
+
+    if(node.FindValue("anchors.horizontalCenter"))
+        loadElementAnchor(element, ANCHOR_HORIZONTAL_CENTER, node["anchors.horizontalCenter"]);
+
+    if(node.FindValue("anchors.verticalCenter"))
+        loadElementAnchor(element, ANCHOR_VERTICAL_CENTER, node["anchors.verticalCenter"]);
+
+    // load specific element type
+    if(element->getElementType() == UI::Button) {
+        UIButtonPtr button = std::static_pointer_cast<UIButton>(element);
+        node["text"] >> tmp;
+        button->setText(tmp);
+    }
+    else if(element->getElementType() == UI::Window) {
+        UIWindowPtr window = std::static_pointer_cast<UIWindow>(element);
+        node["title"] >> tmp;
+        window->setTitle(tmp);
+    }
+    else if(element->getElementType() == UI::Label) {
+        UILabelPtr label = std::static_pointer_cast<UILabel>(element);
+        node["text"] >> tmp;
+        label->setText(tmp);
+    }
+}
+
+void UILoader::loadElementAnchor(const UIElementPtr& element, EAnchorType type, const YAML::Node& node)
+{
+    std::string anchorDescription;
+    node >> anchorDescription;
+
+    std::vector<std::string> split;
+    boost::split(split, anchorDescription, boost::is_any_of("."));
+    if(split.size() != 2)
+        throw YAML::Exception(node.GetMark(), "invalid anchors description");
+
+    std::string relativeElementId = split[0];
+    std::string relativeAnchorTypeId = split[1];
+    EAnchorType relativeAnchorType;
+
+    if(relativeAnchorTypeId == "left")
+        relativeAnchorType = ANCHOR_LEFT;
+    else if(relativeAnchorTypeId == "right")
+        relativeAnchorType = ANCHOR_RIGHT;
+    else if(relativeAnchorTypeId == "top")
+        relativeAnchorType = ANCHOR_TOP;
+    else if(relativeAnchorTypeId == "bottom")
+        relativeAnchorType = ANCHOR_BOTTOM;
+    else if(relativeAnchorTypeId == "horizontalCenter")
+        relativeAnchorType = ANCHOR_HORIZONTAL_CENTER;
+    else if(relativeAnchorTypeId == "verticalCenter")
+        relativeAnchorType = ANCHOR_VERTICAL_CENTER;
+    else
+        throw YAML::Exception(node.GetMark(), "invalid anchors description");
+
+    UILayoutPtr relativeElement;
+    if(relativeElementId == "parent" && element->getParent()) {
+        relativeElement = element->getParent()->asUILayout();
+    } else {
+        UIElementPtr tmp = UIContainer::getRootContainer()->recursiveGetChildById(relativeElementId);
+        if(tmp)
+            relativeElement = tmp->asUILayout();
+    }
+
+    if(relativeElement) {
+        element->addAnchor(type, AnchorLine(relativeElement, relativeAnchorType));
+    } else {
+        throw YAML::Exception(node.GetMark(), "anchoring failed, does the relative element really exists?");
+    }
+}

src/framework/ui/uiloader.h

@@ -0,0 +1,53 @@
+/* The MIT License
+ *
+ * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#ifndef UILOADER_H
+#define UILOADER_H
+
+#include "prerequisites.h"
+#include "uiconstants.h"
+#include "uicontainer.h"
+
+namespace UILoader
+{
+    /// Detect element type and create it
+    UIElementPtr createElementFromId(const std::string& id);
+
+    /// Loads an UIElement and it's children from a YAML file
+    UIElementPtr loadFile(const std::string& file, const UIContainerPtr& parent);
+
+    /// Populate container children from a YAML node
+    void populateContainer(const UIContainerPtr& parent, const YAML::Node& node);
+
+    /// Load element and its children from a YAML node
+    void loadElements(const UIElementPtr& parent, const YAML::Node& node);
+
+    /// Load element proprieties from a YAML node
+    void loadElement(const UIElementPtr& element, const YAML::Node& node);
+
+    /// Load anchor from a YAML node
+    void loadElementAnchor(const UIElementPtr& element, EAnchorType type, const YAML::Node& node);
+};
+
+#endif // UILOADER_H

src/framework/ui/uiwindow.cpp

@@ -23,9 +23,3 @@
 
 
 #include "uiwindow.h"
-
-void UIWindow::load(const YAML::Node& node)
-{
-    UIContainer::load(node);
-    node["title"] >> m_title;
-}

src/framework/ui/uiwindow.h

@@ -35,8 +35,7 @@ public:
         UIContainer(UI::Window),
         m_title(title) { }
 
-    void load(const YAML::Node& node);
+    void setTitle(const std::string& title) { m_title = title; }
-
     const std::string& getTitle() const { return m_title; }
 
 private:

src/framework/util/color.cpp

@@ -0,0 +1,33 @@
+/* The MIT License
+ *
+ * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "color.h"
+
+Color Color::white(0xFF, 0xFF, 0xFF, 0xFF);
+Color Color::black(0x00, 0x00, 0x00, 0xFF);
+Color Color::alpha(0x00, 0x00, 0x00, 0x00);
+Color Color::red  (0xFF, 0x00, 0x00, 0xFF);
+Color Color::green(0x00, 0xFF, 0x00, 0xFF);
+Color Color::blue (0x00, 0x00, 0xFF, 0xFF);
+Color Color::pink (0xFF, 0x00, 0xFF, 0xFF);

src/framework/util/color.h

@@ -37,10 +37,10 @@ public:
     inline Color(const Color& other) : color(other.color) { }
     inline Color(RGBA rgba) : color(rgba) { }
 
-    inline uint8 red()   const { return (color >> 24) & 0xFF; }
+    inline uint8 r()   const { return (color >> 24) & 0xFF; }
-    inline uint8 green() const { return (color >> 16) & 0xFF; }
+    inline uint8 g() const { return (color >> 16) & 0xFF; }
-    inline uint8 blue()  const { return (color >> 8) & 0xFF; }
+    inline uint8 b()  const { return (color >> 8) & 0xFF; }
-    inline uint8 alpha() const { return color & 0xFF; }
+    inline uint8 a() const { return color & 0xFF; }
     inline RGBA rgba() const { return color; }
     inline const uint8* rgbaPtr() const { return (const uint8*)&color; }
 
@@ -55,6 +55,14 @@ public:
     inline bool operator==(const Color& other) const { return other.color == color; }
     inline bool operator!=(const Color& other) const { return other.color != color; }
 
+    static Color white;
+    static Color black;
+    static Color alpha;
+    static Color red;
+    static Color green;
+    static Color blue;
+    static Color pink;
+
 private:
     RGBA color;
 };
@@ -69,4 +77,13 @@ inline void operator>>(const YAML::Node& node, Color& color)
     color.setRGBA(r,g,b,a);
 }
 
+inline std::ostream& operator<<(std::ostream& out, const Color& color)
+{
+    out << "Color(" << (int)color.r() << ","
+                    << (int)color.g() << ","
+                    << (int)color.b() << ","
+                    << (int)color.a() << ")";
+    return out;
+}
+
 #endif // COLOR_H

src/framework/util/point.h

@@ -85,4 +85,12 @@ inline void operator>>(const YAML::Node& node, TPoint<T>& point)
     node[1] >> point.y;
 }
 
+template <class T>
+inline std::ostream& operator<<(std::ostream& out, const TPoint<T>& point)
+{
+    out << "Point(" << point.x << ","
+                    << point.y <<  ")";
+    return out;
+}
+
 #endif

src/framework/util/rect.h

@@ -304,4 +304,14 @@ inline void operator>>(const YAML::Node& node, TRect<T>& rect)
     rect.setRect(x, y, width, height);
 }
 
+template <class T>
+inline std::ostream& operator<<(std::ostream& out, const TRect<T>& rect)
+{
+    out << "Rect(" << rect.left() << ","
+                   << rect.top() << ","
+                   << rect.width() << ","
+                   << rect.height() << ")";
+    return out;
+}
+
 #endif // RECT_H

src/framework/util/size.h

@@ -120,4 +120,12 @@ inline void operator>>(const YAML::Node& node, TSize<T>& size)
     size.setSize(w, h);
 }
 
+template <class T>
+inline std::ostream& operator<<(std::ostream& out, const TSize<T>& size)
+{
+    out << "Size(" << size.width() << ","
+                   << size.height() <<  ")";
+    return out;
+}
+
 #endif

src/menustate.cpp

@@ -39,15 +39,15 @@ void MenuState::onEnter()
     m_background = g_textures.get("background.png");
     m_background->enableBilinearFilter();
 
-    UIContainerPtr mainMenuPanel = UIContainer::load("ui/mainMenu-panel.yml");
+    UIElementPtr mainMenuPanel = UILoader::loadFile("ui/mainMenu.yml", UIContainer::getRootContainer());
-
+/*
     UIButtonPtr button = std::static_pointer_cast<UIButton>(mainMenuPanel->getChildById("exitGame-button"));
     button->onClick([]{ g_engine.stop(); });
     
     button = std::static_pointer_cast<UIButton>(mainMenuPanel->getChildById("enterGame-button"));
     button->onClick([]{
         UIContainer::load("ui/enterGame-window.yml");
-    });
+    });*/
 }
 
 void MenuState::onLeave()
@@ -82,7 +82,7 @@ void MenuState::render()
     texCoordsSize = texCoordsSize.boundedTo(texSize);
     Rect texCoords(0, 0, texCoordsSize);
     texCoords.moveBottomRight(texSize.toPoint());
-    g_graphics.drawTexturedRect(Rect(0, 0, screenSize), m_background.get(), texCoords);
+    g_graphics.drawTexturedRect(Rect(0, 0, screenSize), m_background, texCoords);
 }
 
 void MenuState::createMainMenu()