reference_guides/latest/check_box_renderer_8cpp-example.html

#include <xtd/xtd>


namespace check_box_renderer_example {

  class form1 : public form {

  public:

    form1() {

      text("Check box renderer example");

      client_size({500, 300});

      set_color(color::blue);

      set_color(nullptr);


      choice_theme.parent(*this);

      choice_theme.location({10, 10});

      choice_theme.items().push_back("default theme");

      auto names = application::style_sheet_names();

      names.sort();

      choice_theme.items().push_back_range(names);

      choice_theme.selected_index(0);

      choice_theme.selected_index_changed += delegate_ {

        application::style_sheet(choice_theme.selected_index() == 0 ? application::system_style_sheet() : application::get_style_sheet_from_name(choice_theme.selected_item().value()));

        color_picker_background.color(back_color());

        color_picker_foreground.color(fore_color());

        bcolor.reset();

        fcolor.reset();

        check_box_system.back_color(nullptr);

        check_box_system.fore_color(nullptr);

        check_box_standard.back_color(nullptr);

        check_box_standard.fore_color(nullptr);

      };


      color_picker_background.parent(*this);

      color_picker_background.location({180, 10});

      color_picker_background.color(back_color());

      color_picker_background.color_picker_changed += delegate_ {

        bcolor = color_picker_background.color();

        check_box_system.back_color(bcolor.value());

        check_box_standard.back_color(bcolor.value());

      };


      color_picker_foreground.parent(*this);

      color_picker_foreground.location({290, 10});

      color_picker_foreground.color(fore_color());

      color_picker_foreground.color_picker_changed += delegate_ {

        fcolor = color_picker_foreground.color();

        check_box_system.fore_color(fcolor.value());

        check_box_standard.fore_color(fcolor.value());

      };


      check_box_system.parent(*this);

      check_box_system.flat_style(xtd::forms::flat_style::system);

      check_box_system.location({10, 210});

      check_box_system.text("System");

      check_box_system.three_state(true);


      check_box_standard.parent(*this);

      check_box_standard.location({100, 210});

      check_box_standard.text("Standard");

      check_box_standard.three_state(true);

    }


  protected:

    void on_paint(paint_event_args& e) override {

      form::on_paint(e);

      check_box_renderer::draw_check_box(e.graphics(), {10, 70, 104, 25}, "Normal", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::unchecked_normal, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {124, 70, 104, 25}, "Hot", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::unchecked_hot, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {238, 70, 104, 25}, "Pressed", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::unchecked_pressed, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {352, 70, 104, 25}, "Disabled", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::unchecked_disabled, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {10, 110, 104, 25}, "Normal", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::checked_normal, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {124, 110, 104, 25}, "Hot", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::checked_hot, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {238, 110, 104, 25}, "Pressed", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::checked_pressed, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {352, 110, 104, 25}, "Disabled", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::checked_disabled, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {10, 150, 104, 25}, "Normal", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::mixed_normal, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {124, 150, 104, 25}, "Hot", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::mixed_hot, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {238, 150, 104, 25}, "Pressed", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::mixed_pressed, bcolor, fcolor);

      check_box_renderer::draw_check_box(e.graphics(), {352, 150, 104, 25}, "Disabled", font(), xtd::forms::text_format_flags::vertical_center | xtd::forms::text_format_flags::left, xtd::drawing::image::empty, {0, 0, 0, 0}, false, xtd::forms::visual_styles::check_box_state::mixed_disabled, bcolor, fcolor);

    }


  private:

    void set_color(const color& color) {

      cdebug << string::format("color = {}", color.to_string()) << environment::new_line;

    }

    void set_color(nullptr_t) {

      cdebug << "color = (nullptr)" << environment::new_line;

    }

    std::optional<color> bcolor;

    std::optional<color> fcolor;

    choice choice_theme;

    color_picker color_picker_background;

    color_picker color_picker_foreground;

    check_box check_box_system;

    check_box check_box_standard;

  };

}


auto main() -> int {

  application::run(check_box_renderer_example::form1 {});

}

xtd::drawing::image::empty
static image empty
Represent an empty xtd::drawing::image.
Definition image.hpp:65

delegate_
#define delegate_
The declaration of a delegate type is similar to a method signature. It has a return value and any nu...
Definition delegate.hpp:900

xtd::forms::text_format_flags::vertical_center
@ vertical_center
Centers the text vertically, within the bounding rectangle.
Definition text_format_flags.hpp:36

xtd::forms::text_format_flags::left
@ left
Aligns the text on the left side of the clipping area. This is the default.
Definition text_format_flags.hpp:28

xtd::forms::visual_styles::check_box_state::mixed_normal
@ mixed_normal
The check box is three-state.
Definition check_box_state.hpp:42

xtd::forms::visual_styles::check_box_state::mixed_pressed
@ mixed_pressed
The check box is three-state and pressed.
Definition check_box_state.hpp:46

xtd::forms::visual_styles::check_box_state::unchecked_normal
@ unchecked_normal
The check box is unchecked.
Definition check_box_state.hpp:26

xtd::forms::visual_styles::check_box_state::checked_normal
@ checked_normal
The check box is checked.
Definition check_box_state.hpp:34

xtd::forms::visual_styles::check_box_state::checked_disabled
@ checked_disabled
The check box is checked and disabled.
Definition check_box_state.hpp:40

xtd::forms::visual_styles::check_box_state::unchecked_pressed
@ unchecked_pressed
The check box is unchecked and pressed.
Definition check_box_state.hpp:30

xtd::forms::visual_styles::check_box_state::mixed_hot
@ mixed_hot
The check box is three-state and hot.
Definition check_box_state.hpp:44

xtd::forms::visual_styles::check_box_state::checked_hot
@ checked_hot
The check box is checked and hot.
Definition check_box_state.hpp:36

xtd::forms::visual_styles::check_box_state::unchecked_hot
@ unchecked_hot
The check box is unchecked and hot.
Definition check_box_state.hpp:28

xtd::forms::visual_styles::check_box_state::unchecked_disabled
@ unchecked_disabled
The check box is unchecked and disabled.
Definition check_box_state.hpp:32

xtd::forms::visual_styles::check_box_state::checked_pressed
@ checked_pressed
The check box is checked and pressed.
Definition check_box_state.hpp:38

xtd::forms::visual_styles::check_box_state::mixed_disabled
@ mixed_disabled
The check box is three-state and disabled.
Definition check_box_state.hpp:48

xtd::forms::flat_style::system
@ system
The appearance of the control is determined by the user's operating system.
Definition flat_style.hpp:32