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added treebox scheme

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This commit is contained in:
besh81 2019-01-21 11:37:35 +01:00
parent a71e02b5f2
commit 91dfaa5d7e
3 changed files with 55 additions and 41 deletions
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16
include/nana/gui/widgets/detail/compset.hpp
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@ -46,7 +46,7 @@ namespace nana{ namespace widgets{ namespace detail
};
/// A component set placer used for specifying component position and size.
template<typename Component, typename ItemAttribute>
template<typename Component, typename ItemAttribute, typename WidgetScheme>
class compset_placer
{
public:
@ -56,10 +56,22 @@ namespace nana{ namespace widgets{ namespace detail
/// A type of widget-defined item attribute.
typedef ItemAttribute item_attribute_t;
/// Widget scheme.
typedef WidgetScheme widget_scheme_t;
widget_scheme_t * wdg_scheme_ptr_{ nullptr };
public:
/// The destrcutor.
/// The destructor.
virtual ~compset_placer(){}
/// Init the scheme pointer
void init_scheme(widget_scheme_t* wdg_scheme_ptr)
{
wdg_scheme_ptr_ = wdg_scheme_ptr;
}
/// Enable/Disable the specified component.
virtual void enable(component_t, bool) = 0;
virtual bool enabled(component_t) const = 0;

37
include/nana/gui/widgets/treebox.hpp
View File

@ -60,8 +60,26 @@ namespace nana
::std::string text;
};
struct scheme
: public widget_geometrics
{
color_proxy item_bg_selected{ static_cast<color_rgb>(0xD5EFFC) }; ///< item selected: background color
color_proxy item_fg_selected{ static_cast<color_rgb>(0x99DEFD) }; ///< item selected: foreground color
color_proxy item_bg_highlighted{ static_cast<color_rgb>(0xE8F5FD) }; ///< item highlighted: background color
color_proxy item_fg_highlighted{ static_cast<color_rgb>(0xD8F0FA) }; ///< item highlighted: foreground color
color_proxy item_bg_selected_and_highlighted{ static_cast<color_rgb>(0xC4E8FA) }; ///< item selected and highlighted: background color
color_proxy item_fg_selected_and_highlighted{ static_cast<color_rgb>(0xB6E6FB) }; ///< item selected and highlighted: foreground color
unsigned item_offset{ 16 }; ///< item position displacement in pixels
unsigned text_offset{ 4 }; ///< text position displacement in pixels
unsigned icon_size{ 16 }; ///< icon size in pixels
unsigned crook_size{ 16 }; ///< crook size in pixels (TODO: the function that draw the crook doesn't scale the shape)
unsigned indent_displacement{ 18 }; ///< children position displacement in pixels (def=18 (before was 10))
};
typedef widgets::detail::compset<component, node_attribute> compset_interface;
typedef widgets::detail::compset_placer<component, node_attribute> compset_placer_interface;
typedef widgets::detail::compset_placer<component, node_attribute, scheme> compset_placer_interface;
class renderer_interface
{
@ -347,23 +365,6 @@ namespace nana
basic_event<arg_treebox> selected; ///< a user selects or unselects a node
basic_event<arg_treebox> hovered; ///< a user moves the cursor over a node
};
struct scheme
: public widget_geometrics
{
color_proxy item_bg_selected{ static_cast<color_rgb>(0xD5EFFC) }; ///< item selected: background color
color_proxy item_fg_selected{ static_cast<color_rgb>(0x99DEFD) }; ///< item selected: foreground color
color_proxy item_bg_highlighted{ static_cast<color_rgb>(0xE8F5FD) }; ///< item highlighted: background color
color_proxy item_fg_highlighted{ static_cast<color_rgb>(0xD8F0FA) }; ///< item highlighted: foreground color
color_proxy item_bg_selected_and_highlighted{ static_cast<color_rgb>(0xC4E8FA) }; ///< item selected and highlighted: background color
color_proxy item_fg_selected_and_highlighted{ static_cast<color_rgb>(0xB6E6FB) }; ///< item selected and highlighted: foreground color
unsigned item_offset{ 16 };
unsigned text_offset{ 4 };
unsigned indent_displacement{ 18 }; ///< children position displacement in pixels (def=18 (before was 10))
};
}//end namespace treebox
}//end namespace drawerbase

43
source/gui/widgets/treebox.cpp
View File

@ -1330,8 +1330,6 @@ namespace nana
class internal_placer
: public compset_placer_interface
{
static const unsigned item_offset = 16;
static const unsigned text_offset = 4;
private:
//Implement the compset_locator_interface
@ -1340,10 +1338,10 @@ namespace nana
switch(comp)
{
case component_t::crook:
pixels_crook_ = (enabled ? 16 : 0);
enable_crook_ = enabled;
break;
case component_t::icon:
pixels_icon_ = (enabled ? 16 : 0);
enable_icon_ = enabled;
break;
default:
break;
@ -1355,9 +1353,9 @@ namespace nana
switch(comp)
{
case component_t::crook:
return (0 != pixels_crook_);
return enable_crook_;
case component_t::icon:
return (0 != pixels_icon_);
return enable_icon_;
default:
break;
}
@ -1366,16 +1364,17 @@ namespace nana
virtual unsigned item_height(graph_reference graph) const override
{
auto m = std::max((enable_crook_ ? wdg_scheme_ptr_->crook_size : 0), (enable_icon_ ? wdg_scheme_ptr_->icon_size : 0));
#ifdef _nana_std_has_string_view
return graph.text_extent_size(std::wstring_view{ L"jH{", 3 }).height + 8;
return std::max(m, graph.text_extent_size(std::wstring_view{ L"jH{", 3 }).height + 8);
#else
return graph.text_extent_size(L"jH{", 3).height + 8;
return std::max(m, graph.text_extent_size(L"jH{", 3).height + 8);
#endif
}
virtual unsigned item_width(graph_reference graph, const item_attribute_t& attr) const override
{
return graph.text_extent_size(attr.text).width + pixels_crook_ + pixels_icon_ + (text_offset << 1) + item_offset;
return graph.text_extent_size(attr.text).width + (enable_crook_ ? wdg_scheme_ptr_->crook_size : 0) + (enable_icon_ ? wdg_scheme_ptr_ ->icon_size: 0) + (wdg_scheme_ptr_->text_offset << 1) + wdg_scheme_ptr_->item_offset;
}
// Locate a component through the specified coordinate.
@ -1390,35 +1389,35 @@ namespace nana
case component_t::expander:
if(attr.has_children)
{
r->width = item_offset;
r->width = wdg_scheme_ptr_->item_offset;
return true;
}
return false;
case component_t::bground:
return true;
case component_t::crook:
if(pixels_crook_)
if(enable_crook_)
{
r->x += item_offset;
r->width = pixels_crook_;
r->x += wdg_scheme_ptr_->item_offset;
r->width = wdg_scheme_ptr_->crook_size;
return true;
}
return false;
case component_t::icon:
if(pixels_icon_)
if(enable_icon_)
{
r->x += item_offset + pixels_crook_;
r->x += wdg_scheme_ptr_->item_offset + (enable_crook_ ? wdg_scheme_ptr_->crook_size : 0);
r->y = 2;
r->width = pixels_icon_;
r->width = wdg_scheme_ptr_->icon_size;
r->height -= 2;
return true;
}
return false;
case component_t::text:
{
auto text_pos = item_offset + pixels_crook_ + pixels_icon_ + text_offset;
auto text_pos = wdg_scheme_ptr_->item_offset + (enable_crook_ ? wdg_scheme_ptr_->crook_size : 0) + (enable_icon_ ? wdg_scheme_ptr_->icon_size : 0) + wdg_scheme_ptr_->text_offset;
r->x += text_pos;
r->width -= (text_pos + text_offset);
r->width -= (text_pos + wdg_scheme_ptr_->text_offset);
};
return true;
default:
@ -1427,8 +1426,8 @@ namespace nana
return false;
}
private:
unsigned pixels_crook_{0};
unsigned pixels_icon_{0};
bool enable_crook_{ false };
bool enable_icon_{ false };
};
class internal_renderer
@ -1534,7 +1533,7 @@ namespace nana
if((nullptr == img) || img->empty())
img = &(item_attr.icon_normal);
if(! img->empty())
if(!img->empty())
{
auto size = img->size();
if(size.width > attr.area.width || size.height > attr.area.height)
@ -1947,6 +1946,8 @@ namespace nana
widget.bgcolor(colors::white);
impl_->data.widget_ptr = static_cast<::nana::treebox*>(&widget);
impl_->data.scheme_ptr = static_cast<::nana::treebox::scheme_type*>(API::dev::get_scheme(widget));
impl_->data.comp_placer->init_scheme(impl_->data.scheme_ptr);
widget.caption("nana treebox");
}