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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 "RectangleTool.h"
28#include "PaintableWidget.h"
29#include <LibGfx/Rect.h>
30#include <LibGUI/Action.h>
31#include <LibGUI/Menu.h>
32#include <LibGUI/Painter.h>
33#include <LibM/math.h>
34
35RectangleTool::RectangleTool()
36{
37}
38
39RectangleTool::~RectangleTool()
40{
41}
42
43void RectangleTool::draw_using(GUI::Painter& painter)
44{
45 auto rect_to_draw = Gfx::Rect::from_two_points(m_rectangle_start_position, m_rectangle_end_position);
46 switch (m_mode) {
47 case Mode::Fill:
48 painter.fill_rect(rect_to_draw, m_widget->color_for(m_drawing_button));
49 break;
50 case Mode::Outline:
51 painter.draw_rect(rect_to_draw, m_widget->color_for(m_drawing_button));
52 break;
53 case Mode::Gradient:
54 painter.fill_rect_with_gradient(rect_to_draw, m_widget->primary_color(), m_widget->secondary_color());
55 break;
56 default:
57 ASSERT_NOT_REACHED();
58 }
59}
60
61void RectangleTool::on_mousedown(GUI::MouseEvent& event)
62{
63 if (event.button() != GUI::MouseButton::Left && event.button() != GUI::MouseButton::Right)
64 return;
65
66 if (m_drawing_button != GUI::MouseButton::None)
67 return;
68
69 m_drawing_button = event.button();
70 m_rectangle_start_position = event.position();
71 m_rectangle_end_position = event.position();
72 m_widget->update();
73}
74
75void RectangleTool::on_mouseup(GUI::MouseEvent& event)
76{
77 if (event.button() == m_drawing_button) {
78 GUI::Painter painter(m_widget->bitmap());
79 draw_using(painter);
80 m_drawing_button = GUI::MouseButton::None;
81 m_widget->update();
82 }
83}
84
85void RectangleTool::on_mousemove(GUI::MouseEvent& event)
86{
87 if (m_drawing_button == GUI::MouseButton::None)
88 return;
89
90 if (!m_widget->rect().contains(event.position()))
91 return;
92
93 m_rectangle_end_position = event.position();
94 m_widget->update();
95}
96
97void RectangleTool::on_second_paint(GUI::PaintEvent& event)
98{
99 if (m_drawing_button == GUI::MouseButton::None)
100 return;
101
102 GUI::Painter painter(*m_widget);
103 painter.add_clip_rect(event.rect());
104 draw_using(painter);
105}
106
107void RectangleTool::on_keydown(GUI::KeyEvent& event)
108{
109 if (event.key() == Key_Escape && m_drawing_button != GUI::MouseButton::None) {
110 m_drawing_button = GUI::MouseButton::None;
111 m_widget->update();
112 event.accept();
113 }
114}
115
116void RectangleTool::on_contextmenu(GUI::ContextMenuEvent& event)
117{
118 if (!m_context_menu) {
119 m_context_menu = GUI::Menu::construct();
120 m_context_menu->add_action(GUI::Action::create("Fill", [this](auto&) {
121 m_mode = Mode::Fill;
122 }));
123 m_context_menu->add_action(GUI::Action::create("Outline", [this](auto&) {
124 m_mode = Mode::Outline;
125 }));
126 m_context_menu->add_action(GUI::Action::create("Gradient", [this](auto&) {
127 m_mode = Mode::Gradient;
128 }));
129 }
130 m_context_menu->popup(event.screen_position());
131}