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#include "SprayTool.h"
#include "PaintableWidget.h"
#include <AK/Queue.h>
#include <AK/SinglyLinkedList.h>
#include <LibGUI/GPainter.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GMenu.h>
#include <LibDraw/GraphicsBitmap.h>
#include <stdio.h>
#include <LibM/math.h>
SprayTool::SprayTool()
{
m_timer = CTimer::create();
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()
{
GPainter 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<GraphicsBitmap::Format::RGB32>(xpos, ypos, m_color);
}
}
void SprayTool::on_mousedown(GMouseEvent& 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(GMouseEvent& event)
{
m_last_pos = event.position();
if (m_timer->is_active()) {
paint_it();
m_timer->restart(m_timer->interval());
}
}
void SprayTool::on_mouseup(GMouseEvent&)
{
m_timer->stop();
}
void SprayTool::on_contextmenu(GContextMenuEvent& event)
{
if (!m_context_menu) {
m_context_menu = make<GMenu>();
m_context_menu->add_action(GAction::create("1", [this](auto&) {
m_thickness = 1;
}));
m_context_menu->add_action(GAction::create("2", [this](auto&) {
m_thickness = 2;
}));
m_context_menu->add_action(GAction::create("3", [this](auto&) {
m_thickness = 3;
}));
m_context_menu->add_action(GAction::create("4", [this](auto&) {
m_thickness = 4;
}));
}
m_context_menu->popup(event.screen_position());
}
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