Adding background to Formspec

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 3018326189f3d9c9f07f37e60853cd974927c19c..500b514d968d8805df6282e71b99ab1b011842f6 100644 (file)
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -694,6 +694,11 @@ image[<X>,<Y>;<W>,<H>;<texture name>]
 ^ Show an image
 ^ Position and size units are inventory slots
 
+background[<X>,<Y>;<W>,<H>;<texture name>]
+^ Use a background. Inventory rectangles are not drawn then.
+^ Position and size units are inventory slots
+^ Example for formspec 8x4 in 16x resolution: image shall be sized 8*16px x 4*16px
+
 field[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]
 ^ Textual field; will be sent to server when a button is clicked
 ^ x and y position the field relative to the top left of the menu

diff --git a/src/guiFormSpecMenu.cpp b/src/guiFormSpecMenu.cpp
index affbd1a34f4d1890e59d87d3bc254072731416f2..7815089b2aeaee51be2cf652e37b013159dd14b8 100644 (file)
--- a/src/guiFormSpecMenu.cpp
+++ b/src/guiFormSpecMenu.cpp
@@ -199,6 +199,7 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
        
        m_inventorylists.clear();
        m_images.clear();
+       m_backgrounds.clear();
        m_fields.clear();
 
        Strfnd f(m_formspec_string);
@@ -278,9 +279,26 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
                                        <<", geom=("<<geom.X<<","<<geom.Y<<")"
                                        <<std::endl;
                        if(bp_set != 2)
-                               errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
+                               errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
                        m_images.push_back(ImageDrawSpec(name, pos, geom));
                }
+               else if(type == "background")
+               {
+                       v2s32 pos = basepos;
+                       pos.X += stof(f.next(",")) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
+                       pos.Y += stof(f.next(";")) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
+                       v2s32 geom;
+                       geom.X = stof(f.next(",")) * (float)spacing.X;
+                       geom.Y = stof(f.next(";")) * (float)spacing.Y;
+                       std::string name = f.next("]");
+                       infostream<<"image name="<<name
+                                       <<", pos=("<<pos.X<<","<<pos.Y<<")"
+                                       <<", geom=("<<geom.X<<","<<geom.Y<<")"
+                                       <<std::endl;
+                       if(bp_set != 2)
+                               errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
+                       m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
+               }
                else if(type == "field")
                {
                        std::string fname = f.next(";");
@@ -691,6 +709,26 @@ void GUIFormSpecMenu::drawMenu()
 
        m_tooltip_element->setVisible(false);
 
+       /*
+               Draw backgrounds
+       */
+       for(u32 i=0; i<m_backgrounds.size(); i++)
+       {
+               const ImageDrawSpec &spec = m_backgrounds[i];
+               video::ITexture *texture =
+                               m_gamedef->tsrc()->getTextureRaw(spec.name);
+               // Image size on screen
+               core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
+               // Image rectangle on screen
+               core::rect<s32> rect = imgrect + spec.pos;
+               const video::SColor color(255,255,255,255);
+               const video::SColor colors[] = {color,color,color,color};
+               driver->draw2DImage(texture, rect,
+                       core::rect<s32>(core::position2d<s32>(0,0),
+                                       core::dimension2di(texture->getOriginalSize())),
+                       NULL/*&AbsoluteClippingRect*/, colors, true);
+       }
+       
        /*
                Draw images
        */
@@ -715,8 +753,11 @@ void GUIFormSpecMenu::drawMenu()
                Draw items
                Phase 0: Item slot rectangles
                Phase 1: Item images; prepare tooltip
+               If backgrounds used, do not draw Item slot rectangles
        */
-       for(int phase=0; phase<=1; phase++)
+       int start_phase=0;
+       if (m_backgrounds.size() > 0) start_phase=1;
+       for(int phase=start_phase; phase<=1; phase++)
        for(u32 i=0; i<m_inventorylists.size(); i++)
        {
                drawList(m_inventorylists[i], phase);

diff --git a/src/guiFormSpecMenu.h b/src/guiFormSpecMenu.h
index 5c01bdcd222ec606703e933da7abc5e5024a9347..890b54d61bae710cf3dc49a083850351dd4b142b 100644 (file)
--- a/src/guiFormSpecMenu.h
+++ b/src/guiFormSpecMenu.h
@@ -206,6 +206,7 @@ protected:
        TextDest *m_text_dst;
 
        core::array<ListDrawSpec> m_inventorylists;
+       core::array<ImageDrawSpec> m_backgrounds;       
        core::array<ImageDrawSpec> m_images;
        core::array<FieldSpec> m_fields;