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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <LibGfx/CharacterBitmap.h>
28#include <LibGfx/Palette.h>
29#include <LibGUI/Painter.h>
30#include <LibGUI/ResizeCorner.h>
31#include <LibGUI/Window.h>
32
33namespace GUI {
34
35static const char* s_resize_corner_shadows_data = {
36 " "
37 " ## "
38 " # "
39 " "
40 " ## ## "
41 " # # "
42 " "
43 " ## ## ## "
44 " # # # "
45 " "
46 " ## ## ## ## "
47 " # # # # "
48 " "
49 " ## ## ## ## ## "
50 " # # # # # "
51 " "
52};
53
54static const char* s_resize_corner_highlights_data = {
55 " "
56 " "
57 " # "
58 " "
59 " "
60 " # # "
61 " "
62 " "
63 " # # # "
64 " "
65 " "
66 " # # # # "
67 " "
68 " "
69 " # # # # # "
70 " "
71};
72
73static Gfx::CharacterBitmap* s_resize_corner_shadows_bitmap;
74static Gfx::CharacterBitmap* s_resize_corner_highlights_bitmap;
75static const int s_resize_corner_bitmap_width = 16;
76static const int s_resize_corner_bitmap_height = 16;
77
78ResizeCorner::ResizeCorner()
79{
80 set_background_role(ColorRole::Button);
81 set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
82 set_preferred_size(16, 16);
83}
84
85ResizeCorner::~ResizeCorner()
86{
87}
88
89void ResizeCorner::paint_event(PaintEvent& event)
90{
91 Painter painter(*this);
92 painter.add_clip_rect(event.rect());
93 painter.fill_rect(rect(), palette().color(background_role()));
94
95 if (!s_resize_corner_shadows_bitmap)
96 s_resize_corner_shadows_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_resize_corner_shadows_data, s_resize_corner_bitmap_width, s_resize_corner_bitmap_height).leak_ref();
97 painter.draw_bitmap({ 0, 0 }, *s_resize_corner_shadows_bitmap, palette().threed_shadow1());
98
99 if (!s_resize_corner_highlights_bitmap)
100 s_resize_corner_highlights_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_resize_corner_highlights_data, s_resize_corner_bitmap_width, s_resize_corner_bitmap_height).leak_ref();
101 painter.draw_bitmap({ 0, 0 }, *s_resize_corner_highlights_bitmap, palette().threed_highlight());
102
103 Widget::paint_event(event);
104}
105
106void ResizeCorner::mousedown_event(MouseEvent& event)
107{
108 if (event.button() == MouseButton::Left)
109 window()->start_wm_resize();
110 Widget::mousedown_event(event);
111}
112
113void ResizeCorner::enter_event(Core::Event& event)
114{
115 window()->set_override_cursor(StandardCursor::ResizeDiagonalTLBR);
116 Widget::enter_event(event);
117}
118
119void ResizeCorner::leave_event(Core::Event& event)
120{
121 window()->set_override_cursor(StandardCursor::None);
122 Widget::leave_event(event);
123}
124
125}