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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "SprayTool.h"
#include "PaintableWidget.h"
#include <AK/Queue.h>
#include <AK/SinglyLinkedList.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Action.h>
#include <LibGUI/Menu.h>
#include <LibGfx/Bitmap.h>
#include <stdio.h>
#include <LibM/math.h>
SprayTool::SprayTool()
{
m_timer = Core::Timer::construct();
m_timer->on_timeout = [&]() {
paint_it();
};
m_timer->set_interval(200);
}
SprayTool::~SprayTool()
{
}
static double nrand()
{
return double(rand()) / double(RAND_MAX);
}
void SprayTool::paint_it()
{
GUI::Painter painter(m_widget->bitmap());
auto& bitmap = m_widget->bitmap();
ASSERT(bitmap.bpp() == 32);
m_widget->update();
const double minimal_radius = 10;
const double base_radius = minimal_radius * m_thickness;
for (int i = 0; i < 100 + (nrand() * 800); i++) {
double radius = base_radius * nrand();
double angle = 2 * M_PI * nrand();
const int xpos = m_last_pos.x() + radius * cos(angle);
const int ypos = m_last_pos.y() - radius * sin(angle);
if (xpos < 0 || xpos >= bitmap.width())
continue;
if (ypos < 0 || ypos >= bitmap.height())
continue;
bitmap.set_pixel<Gfx::Bitmap::Format::RGB32>(xpos, ypos, m_color);
}
}
void SprayTool::on_mousedown(GUI::MouseEvent& event)
{
if (!m_widget->rect().contains(event.position()))
return;
m_color = m_widget->color_for(event);
m_last_pos = event.position();
m_timer->start();
paint_it();
}
void SprayTool::on_mousemove(GUI::MouseEvent& event)
{
m_last_pos = event.position();
if (m_timer->is_active()) {
paint_it();
m_timer->restart(m_timer->interval());
}
}
void SprayTool::on_mouseup(GUI::MouseEvent&)
{
m_timer->stop();
}
void SprayTool::on_contextmenu(GUI::ContextMenuEvent& event)
{
if (!m_context_menu) {
m_context_menu = GUI::Menu::construct();
m_thickness_actions.set_exclusive(true);
auto insert_action = [&](int size, bool checked = false) {
auto action = GUI::Action::create(String::number(size), [this, size](auto& action) {
m_thickness = size;
action.set_checked(true);
});
action->set_checkable(true);
action->set_checked(checked);
m_thickness_actions.add_action(*action);
m_context_menu->add_action(move(action));
};
insert_action(1, true);
insert_action(2);
insert_action(3);
insert_action(4);
}
m_context_menu->popup(event.screen_position());
}
|
