1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
using Gee;
using Gdk;
using Gtk;
using Dino.Entities;
namespace Dino.Ui {
public class FileImageWidget : Box {
public FileImageWidget() {
this.halign = Align.START;
this.add_css_class("file-image-widget");
this.set_cursor_from_name("zoom-in");
}
public async void load_from_file(File file, string file_name, int MAX_WIDTH=600, int MAX_HEIGHT=300) throws GLib.Error {
Gtk.Box image_overlay_toolbar = new Gtk.Box(Orientation.HORIZONTAL, 0) { halign=Gtk.Align.END, valign=Gtk.Align.START, margin_top=10, margin_start=10, margin_end=10, margin_bottom=10, vexpand=false, visible=false };
image_overlay_toolbar.add_css_class("card");
image_overlay_toolbar.add_css_class("toolbar");
image_overlay_toolbar.add_css_class("overlay-toolbar");
image_overlay_toolbar.set_cursor_from_name("default");
FixedRatioPicture image = new FixedRatioPicture() { min_width=100, min_height=100, max_width=MAX_WIDTH, max_height=MAX_HEIGHT, file=file };
GestureClick gesture_click_controller = new GestureClick();
gesture_click_controller.button = 1; // listen for left clicks
gesture_click_controller.released.connect((n_press, x, y) => {
switch (gesture_click_controller.get_device().source) {
case Gdk.InputSource.TOUCHSCREEN:
case Gdk.InputSource.PEN:
if (n_press == 1) {
image_overlay_toolbar.visible = !image_overlay_toolbar.visible;
} else if (n_press == 2) {
this.activate_action("file.open", null);
image_overlay_toolbar.visible = false;
}
break;
default:
this.activate_action("file.open", null);
image_overlay_toolbar.visible = false;
break;
}
});
image.add_controller(gesture_click_controller);
FileInfo file_info = file.query_info("*", FileQueryInfoFlags.NONE);
string? mime_type = file_info.get_content_type();
MenuButton button = new MenuButton();
button.icon_name = "view-more";
Menu menu_model = new Menu();
menu_model.append(_("Open"), "file.open");
menu_model.append(_("Save as…"), "file.save_as");
Gtk.PopoverMenu popover_menu = new Gtk.PopoverMenu.from_model(menu_model);
button.popover = popover_menu;
image_overlay_toolbar.append(button);
Overlay overlay = new Overlay();
overlay.set_child(image);
overlay.add_overlay(image_overlay_toolbar);
overlay.set_measure_overlay(image, true);
overlay.set_clip_overlay(image_overlay_toolbar, true);
EventControllerMotion this_motion_events = new EventControllerMotion();
this.add_controller(this_motion_events);
this_motion_events.enter.connect(() => {
image_overlay_toolbar.visible = true;
});
this_motion_events.leave.connect(() => {
if (button.popover != null && button.popover.visible) return;
image_overlay_toolbar.visible = false;
});
this.append(overlay);
}
}
}
|
