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/* Flow Box
*
* Gtk::FlowBox allows flexible and responsive grids which reflow
* as needed and support sorting and filtering.
*
* The children of a FlowBox are regular widgets
*/
#include <gtkmm.h>
class Example_FlowBox : public Gtk::Window
{
public:
Example_FlowBox();
~Example_FlowBox() override;
protected:
//Signal handlers:
bool on_drawing_area_draw(const Cairo::RefPtr<Cairo::Context>& cr, int swatch_i);
// Containers
Gtk::ScrolledWindow m_scrolled_window;
Gtk::FlowBox m_flow_box;
private:
void fill_color_names();
Gtk::Button* create_color_swatch(int swatch_i);
std::vector<Glib::ustring> m_color_names;
};
//Called by DemoWindow;
Gtk::Window* do_flowbox()
{
return new Example_FlowBox();
}
Example_FlowBox::Example_FlowBox()
{
// Window properties
set_title("FlowBox Example");
set_default_size(600, 400);
set_border_width(6);
// Scrolled window
m_scrolled_window.set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
// Flow box
m_flow_box.set_max_children_per_line(30);
m_flow_box.set_selection_mode(Gtk::SELECTION_NONE);
m_flow_box.set_homogeneous();
// Color swatches
fill_color_names();
for(std::size_t i = 0; i != m_color_names.size(); ++i)
{
Gtk::Button* color_swatch = create_color_swatch(i);
m_flow_box.add(*color_swatch);
}
// Layout
m_scrolled_window.add(m_flow_box);
add(m_scrolled_window);
show_all_children();
}
Example_FlowBox::~Example_FlowBox()
{
}
Gtk::Button* Example_FlowBox::create_color_swatch(int swatch_i)
{
Gtk::DrawingArea* drawing_area = Gtk::make_managed<Gtk::DrawingArea>();
Gtk::Button* color_swatch = Gtk::make_managed<Gtk::Button>();
drawing_area->set_size_request(24, 24);
color_swatch->add(*drawing_area);
drawing_area->signal_draw().connect(sigc::bind(sigc::mem_fun(*this, &Example_FlowBox::on_drawing_area_draw), swatch_i));
return color_swatch;
}
bool Example_FlowBox::on_drawing_area_draw(const Cairo::RefPtr<Cairo::Context>& cr, int swatch_i)
{
Gdk::RGBA rgba(m_color_names[swatch_i]);
Gdk::Cairo::set_source_rgba(cr, rgba);
cr->paint();
return true;
}
void Example_FlowBox::fill_color_names()
{
m_color_names.push_back("AliceBlue");
m_color_names.push_back("AntiqueWhite");
m_color_names.push_back("AntiqueWhite1");
m_color_names.push_back("AntiqueWhite2");
m_color_names.push_back("AntiqueWhite3");
m_color_names.push_back("AntiqueWhite4");
m_color_names.push_back("aqua");
m_color_names.push_back("aquamarine");
m_color_names.push_back("aquamarine1");
m_color_names.push_back("aquamarine2");
m_color_names.push_back("aquamarine3");
m_color_names.push_back("aquamarine4");
m_color_names.push_back("azure");
m_color_names.push_back("azure1");
m_color_names.push_back("azure2");
m_color_names.push_back("azure3");
m_color_names.push_back("azure4");
m_color_names.push_back("beige");
m_color_names.push_back("bisque");
m_color_names.push_back("bisque1");
m_color_names.push_back("bisque2");
m_color_names.push_back("bisque3");
m_color_names.push_back("bisque4");
m_color_names.push_back("black");
m_color_names.push_back("BlanchedAlmond");
m_color_names.push_back("blue");
m_color_names.push_back("blue1");
m_color_names.push_back("blue2");
m_color_names.push_back("blue3");
m_color_names.push_back("blue4");
m_color_names.push_back("BlueViolet");
m_color_names.push_back("brown");
m_color_names.push_back("brown1");
m_color_names.push_back("brown2");
m_color_names.push_back("brown3");
m_color_names.push_back("brown4");
m_color_names.push_back("burlywood");
m_color_names.push_back("burlywood1");
m_color_names.push_back("burlywood2");
m_color_names.push_back("burlywood3");
m_color_names.push_back("burlywood4");
m_color_names.push_back("CadetBlue");
m_color_names.push_back("CadetBlue1");
m_color_names.push_back("CadetBlue2");
m_color_names.push_back("CadetBlue3");
m_color_names.push_back("CadetBlue4");
m_color_names.push_back("chartreuse");
m_color_names.push_back("chartreuse1");
m_color_names.push_back("chartreuse2");
m_color_names.push_back("chartreuse3");
m_color_names.push_back("chartreuse4");
m_color_names.push_back("chocolate");
m_color_names.push_back("chocolate1");
m_color_names.push_back("chocolate2");
m_color_names.push_back("chocolate3");
m_color_names.push_back("chocolate4");
m_color_names.push_back("coral");
m_color_names.push_back("coral1");
m_color_names.push_back("coral2");
m_color_names.push_back("coral3");
m_color_names.push_back("coral4");
m_color_names.push_back("CornflowerBlue");
m_color_names.push_back("cornsilk");
m_color_names.push_back("cornsilk1");
m_color_names.push_back("cornsilk2");
m_color_names.push_back("cornsilk3");
m_color_names.push_back("cornsilk4");
m_color_names.push_back("crimson");
m_color_names.push_back("cyan");
m_color_names.push_back("cyan1");
m_color_names.push_back("cyan2");
m_color_names.push_back("cyan3");
m_color_names.push_back("cyan4");
m_color_names.push_back("DarkBlue");
m_color_names.push_back("DarkCyan");
m_color_names.push_back("DarkGoldenrod");
m_color_names.push_back("DarkGoldenrod1");
m_color_names.push_back("DarkGoldenrod2");
m_color_names.push_back("DarkGoldenrod3");
m_color_names.push_back("DarkGoldenrod4");
m_color_names.push_back("DarkGray");
m_color_names.push_back("DarkGreen");
m_color_names.push_back("DarkGrey");
m_color_names.push_back("DarkKhaki");
m_color_names.push_back("DarkMagenta");
m_color_names.push_back("DarkOliveGreen");
m_color_names.push_back("DarkOliveGreen1");
m_color_names.push_back("DarkOliveGreen2");
m_color_names.push_back("DarkOliveGreen3");
m_color_names.push_back("DarkOliveGreen4");
m_color_names.push_back("DarkOrange");
m_color_names.push_back("DarkOrange1");
m_color_names.push_back("DarkOrange2");
m_color_names.push_back("DarkOrange3");
m_color_names.push_back("DarkOrange4");
m_color_names.push_back("DarkOrchid");
m_color_names.push_back("DarkOrchid1");
m_color_names.push_back("DarkOrchid2");
m_color_names.push_back("DarkOrchid3");
m_color_names.push_back("DarkOrchid4");
m_color_names.push_back("DarkRed");
m_color_names.push_back("DarkSalmon");
m_color_names.push_back("DarkSeaGreen");
m_color_names.push_back("DarkSeaGreen1");
}
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