mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 17:22:43 +00:00
95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
#include "SprayTool.h"
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#include "PaintableWidget.h"
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#include <AK/Queue.h>
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#include <AK/SinglyLinkedList.h>
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#include <LibGUI/GPainter.h>
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#include <LibGUI/GAction.h>
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#include <LibGUI/GMenu.h>
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#include <LibDraw/GraphicsBitmap.h>
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#include <stdio.h>
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#include <LibM/math.h>
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SprayTool::SprayTool()
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{
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m_timer = CTimer::construct();
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m_timer->on_timeout = [&]() {
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paint_it();
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};
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m_timer->set_interval(200);
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}
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SprayTool::~SprayTool()
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{
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}
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static double nrand()
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{
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return double(rand()) / double(RAND_MAX);
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}
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void SprayTool::paint_it()
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{
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GPainter painter(m_widget->bitmap());
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auto& bitmap = m_widget->bitmap();
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ASSERT(bitmap.bpp() == 32);
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m_widget->update();
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const double minimal_radius = 10;
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const double base_radius = minimal_radius * m_thickness;
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for (int i = 0; i < 100 + (nrand() * 800); i++) {
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double radius = base_radius * nrand();
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double angle = 2 * M_PI * nrand();
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const int xpos = m_last_pos.x() + radius * cos(angle);
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const int ypos = m_last_pos.y() - radius * sin(angle);
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if (xpos < 0 || xpos >= bitmap.width())
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continue;
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if (ypos < 0 || ypos >= bitmap.height())
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continue;
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bitmap.set_pixel<GraphicsBitmap::Format::RGB32>(xpos, ypos, m_color);
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}
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}
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void SprayTool::on_mousedown(GMouseEvent& event)
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{
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if (!m_widget->rect().contains(event.position()))
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return;
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m_color = m_widget->color_for(event);
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m_last_pos = event.position();
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m_timer->start();
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paint_it();
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}
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void SprayTool::on_mousemove(GMouseEvent& event)
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{
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m_last_pos = event.position();
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if (m_timer->is_active()) {
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paint_it();
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m_timer->restart(m_timer->interval());
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}
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}
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void SprayTool::on_mouseup(GMouseEvent&)
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{
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m_timer->stop();
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}
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void SprayTool::on_contextmenu(GContextMenuEvent& event)
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{
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if (!m_context_menu) {
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m_context_menu = GMenu::construct();
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m_context_menu->add_action(GAction::create("1", [this](auto&) {
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m_thickness = 1;
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}));
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m_context_menu->add_action(GAction::create("2", [this](auto&) {
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m_thickness = 2;
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}));
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m_context_menu->add_action(GAction::create("3", [this](auto&) {
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m_thickness = 3;
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}));
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m_context_menu->add_action(GAction::create("4", [this](auto&) {
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m_thickness = 4;
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}));
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}
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m_context_menu->popup(event.screen_position());
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}
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