xtd 0.2.0
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images3.cpp

demonstrates the use of xtd::forms::images component.

Windows

macOS

Gnome

#include <xtd/drawing/system_colors>
#include <xtd/drawing/texts>
#include <xtd/forms/application>
#include <xtd/forms/button>
#include <xtd/forms/button_images>
#include <xtd/forms/choice>
#include <xtd/forms/form>
#include <xtd/forms/images>
#include <xtd/forms/label>
#include <xtd/forms/picture_box>
using namespace xtd;
using namespace xtd::drawing;
using namespace xtd::forms;
namespace example {
class form1 : public form {
public:
form1() {
text("Images 3 example");
client_size({676, 350});
controls().push_back_range({choice_theme, choice_context, picture_16, picture_32, picture_64, picture_128, picture_256, label_picture_name, button_previous, button_next});
choice_theme.location({10, 10});
choice_theme.width(323);
choice_theme.items().push_back("current theme");
auto names = application::style_sheet_names();
sort(names.begin(), names.end());
choice_theme.items().push_back_range(names);
choice_theme.selected_index(0);
choice_theme.selected_index_changed += event_handler(*this, &form1::update_form);
choice_context.location({343, 10});
choice_context.width(323);
choice_context.items().push_back_range(images::contexts());
choice_context.selected_index(0);
choice_context.selected_index_changed += [&] {
current_image_index = 0;
update_form();
};
picture_16.back_color(system_colors::window());
picture_16.border_style(forms::border_style::fixed_3d);
picture_16.bounds({10, 60, 30, 30});
picture_16.size_mode(picture_box_size_mode::center_image);
picture_32.back_color(system_colors::window());
picture_32.border_style(forms::border_style::fixed_3d);
picture_32.bounds({50, 60, 56, 56});
picture_32.size_mode(picture_box_size_mode::center_image);
picture_64.back_color(system_colors::window());
picture_64.border_style(forms::border_style::fixed_3d);
picture_64.bounds({126, 60, 88, 88});
picture_64.size_mode(picture_box_size_mode::center_image);
picture_128.back_color(system_colors::window());
picture_128.border_style(forms::border_style::fixed_3d);
picture_128.bounds({224, 60, 152, 152});
picture_128.size_mode(picture_box_size_mode::center_image);
picture_256.back_color(system_colors::window());
picture_256.border_style(forms::border_style::fixed_3d);
picture_256.bounds({386, 60, 280, 280});
picture_256.size_mode(picture_box_size_mode::center_image);
label_picture_name.bounds({10, 240, 280, label_picture_name.height()});
button_previous.auto_repeat(true);
button_previous.enabled(false);
button_previous.image(button_images::previous());
button_previous.image_align(content_alignment::middle_left);
button_previous.text(texts::previous());
button_previous.bounds({10, 300, 125, 40});
button_previous.click += [&] {
if (current_image_index > 0) --current_image_index;
update_form();
};
button_next.auto_repeat(true);
button_next.image(button_images::next());
button_next.image_align(content_alignment::middle_right);
button_next.text(texts::next());
button_next.bounds({165, 300, 125, 40});
button_next.click += [&] {
if (current_image_index < images::names(choice_context.selected_item().value()).size()) ++current_image_index;
update_form();
};
update_form();
}
private:
void update_form() {
auto theme = choice_theme.selected_index() == 0 ? application::style_sheet().theme().name() : choice_theme.selected_item().value();
picture_16.image(images::from_name(theme, images::names(choice_context.selected_item().value())[current_image_index], drawing::size {16, 16}));
picture_32.image(images::from_name(theme, images::names(choice_context.selected_item().value())[current_image_index], drawing::size {32, 32}));
picture_64.image(images::from_name(theme, images::names(choice_context.selected_item().value())[current_image_index], drawing::size {64, 64}));
picture_128.image(images::from_name(theme, images::names(choice_context.selected_item().value())[current_image_index], drawing::size {128, 128}));
picture_256.image(images::from_name(theme, images::names(choice_context.selected_item().value())[current_image_index], drawing::size {256, 256}));
label_picture_name.text(images::names(choice_context.selected_item().value())[current_image_index]);
button_previous.enabled(current_image_index > 0);
button_next.enabled(current_image_index < images::names(choice_context.selected_item().value()).size() - 1);
}
size_t current_image_index = 0;
choice choice_theme;
choice choice_context;
picture_box picture_16;
picture_box picture_32;
picture_box picture_64;
picture_box picture_128;
picture_box picture_256;
label label_picture_name;
button button_previous;
button button_next;
};
}
auto main() -> int {
//application::enable_light_mode();
//application::enable_dark_mode();
application::run(example::form1 {});
}
Stores an ordered pair of integers, which specify a height and width.
Definition size.h:31
Represents a Windows button control.
Definition button.h:49
Represents a choice control.
Definition choice.h:37
Represents a window or dialog box that makes up an application's user interface.
Definition form.h:54
Represents a standard Windows label.
Definition label.h:38
Represents a standard Windows picture box.
Definition picture_box.h:34
generic_event_handler<> event_handler
Represents the method that will handle an event that has no event data.
Definition event_handler.h:32
The xtd::drawing namespace provides access to GDI+ basic graphics functionality. More advanced functi...
Definition brush.h:18
The xtd::forms namespace contains classes for creating Windows-based applications that take full adva...
Definition xtd_about_box.h:12
The xtd namespace contains all fundamental classes to access Hardware, Os, System,...
Definition xtd_about_box.h:10