Implement autosize() method for most widgets

[libs/gltk.git] / source / entry.cpp

diff --git a/source/entry.cpp b/source/entry.cpp
index 271c49a4b6cda21ca063f9e7e7339ea460c96de5..2dc046646e49af2af9b07967a090e42f041f0c64 100644 (file)
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -32,6 +32,55 @@ Entry::Entry(const string &t):
        set_text(t);
 }
 
+void Entry::autosize()
+{
+       if(!style)
+               return;
+
+       Widget::autosize();
+
+       if(text_part)
+       {
+               const Sides &margin = text_part->get_margin();
+               const GL::Font &font = *style->get_font();
+               unsigned en_width = static_cast<unsigned>(font.get_string_width("n")*font.get_native_size());
+               geom.w = max(geom.w, 10*en_width+margin.left+margin.right);
+
+               unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font.get_native_size());
+               if(multiline)
+               {
+                       unsigned line_spacing = font.get_native_size()*6/5;
+                       geom.h = max(geom.h, line_height+line_spacing*2+margin.top+margin.bottom);
+               }
+               else
+                       geom.h = max(geom.h, line_height+margin.top+margin.bottom);
+       }
+
+       if(multiline)
+       {
+               if(const Part *slider_part = style->get_part("slider"))
+               {
+                       Geometry sgeom = slider_part->get_geometry();
+                       if(!sgeom.w || !sgeom.h)
+                       {
+                               slider->autosize();
+                               if(!sgeom.w)
+                                       sgeom.w = slider->get_geometry().w;
+                               if(!sgeom.h)
+                                       sgeom.h = slider->get_geometry().h;
+                       }
+
+                       const Sides &margin = slider_part->get_margin();
+                       geom.w = max(geom.w, sgeom.w+margin.left+margin.right);
+                       geom.h = max(geom.h, sgeom.h+margin.top+margin.bottom);
+
+                       reposition_slider();
+               }
+
+               check_view_range();
+       }
+}
+
 void Entry::set_text(const string &t)
 {
        text = t;
@@ -180,6 +229,15 @@ void Entry::reposition_slider()
        if(const Part *slider_part = style->get_part("slider"))
        {
                Geometry sgeom = slider_part->get_geometry();
+               if(!sgeom.w || !sgeom.h)
+               {
+                       slider->autosize();
+                       if(!sgeom.w)
+                               sgeom.w = slider->get_geometry().w;
+                       if(!sgeom.h)
+                               sgeom.h = slider->get_geometry().h;
+               }
+
                slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
                slider->set_geometry(sgeom);
        }