121 lines
3 KiB
C
121 lines
3 KiB
C
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#pragma once
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#include <cgv/base/base.h>
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#include <cgv/base/group.h>
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#include <cgv/gui/resizable.h>
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#include <cgv/signal/signal.h>
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#include <cgv/signal/rebind.h>
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#include <cgv/data/ref_ptr.h>
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#include <cgv/type/variant.h>
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#include <cgv/gui/layout_spacings.h>
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#include "lib_begin.h"
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using namespace cgv::base;
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namespace cgv {
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namespace gui {
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/**
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Allowed hints:
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s - horizontal shrink
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S - vertical shrink
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x - horizontal expand
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X - vertical expand
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f - horizontal fill
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F - vertical fill
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l - align left
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r - align right
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c - align centered
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t - align top
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b - align bottom
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m - align middle (between top and bottom)
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*/
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enum layout_hint
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{
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LH_HSHRINK = 1<<0,
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LH_HEXPAND = 1<<1,
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LH_HFILL = 1<<2,
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LH_LEFT = 1<<3,
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LH_CENTER = 1<<4,
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LH_RIGHT = 1<<5,
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LH_VSHRINK = 1<<6,
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LH_VEXPAND = 1<<7,
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LH_VFILL = 1<<8,
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LH_TOP = 1<<9,
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LH_MIDDLE = 1<<10,
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LH_BOTTOM = 1<<11,
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LH_HHINTS = 0,
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LH_VHINTS = 6
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};
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// abstract class to define a layout on containers.
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class CGV_API layout: public cgv::base::base
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{
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public:
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// constructor that sets a container
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layout(cgv::base::group_ptr container = 0);
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// empty destructor
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~layout();
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// set a container to be layouted
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void set_container(cgv::base::group_ptr container);
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// set the spacing parameters
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void set_spacings(const layout_spacings spacings);
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// update children
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virtual void update() {};
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// resize
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void resize(int w, int h);
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virtual std::string get_property_declarations();
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virtual bool set_void(const std::string &property, const std::string &value_type, const void *value_ptr);
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virtual bool get_void(const std::string &property, const std::string &value_type, void *value_ptr);
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protected:
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cgv::base::group_ptr container;
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int w, h, true_w, true_h;
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int min_w, min_h, default_w, default_h;
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layout_spacings spacings;
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std::string spacings_name;
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// get the layout hints for a child
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int get_child_layout_hints(cgv::base::base_ptr child);
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// get the layouted container
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cgv::base::group_ptr get_container();
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// get a child from the container.
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base_ptr get_child(unsigned int i);
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// get the size of a child
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void get_child_size(const base_ptr child, int &width, int &height);
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// set the size of a child
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void set_child_size(const base_ptr child, int width, int height);
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// get the default size of a child
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void get_child_default_size(const base_ptr child, int &width, int &height);
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// get the position of a child
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void get_child_position(const base_ptr child, int &x, int &y);
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// set the position of a child
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void set_child_position(const base_ptr child, int x, int y);
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// get the mimimum size of a child
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void get_child_minimum_size(const base_ptr child, int &width, int &height);
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};
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/// ref counted pointer to layout
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typedef cgv::data::ref_ptr<layout> layout_ptr;
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}
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}
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#include <cgv/config/lib_end.h>
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