#include "pch.h"
#include "log.h"
#include "canvas_modes.h"
#include "layout.h"
#include "canvas.h"

NodeCanvas* CanvasMode::node;
ui::Canvas* CanvasMode::canvas; 

void CanvasModePen::on_MouseDownL(MouseEvent* me, glm::vec2& loc)
{
    canvas->stroke_start(loc, 1.f, node->m_brush);
    m_dragging = true;
    node->mouse_capture();
}
void CanvasModePen::on_MouseUpL(MouseEvent* me, glm::vec2& loc)
{
    canvas->stroke_end();
    m_dragging = false;
    node->mouse_release();
}
void CanvasModePen::on_MouseDownR(MouseEvent* me, glm::vec2& loc)
{
    m_draggingR = true;
    m_dragR_start = me->m_pos;
    m_pan_start = m_pan;
    node->mouse_capture();
}
void CanvasModePen::on_MouseUpR(MouseEvent* me, glm::vec2& loc)
{
    m_draggingR = false;
    node->mouse_release();
}
void CanvasModePen::on_MouseMove(MouseEvent* me, glm::vec2& loc)
{
    if (m_dragging)
        canvas->stroke_update(loc, 1.f);
    if (m_draggingR)
        m_pan = m_pan_start + (me->m_pos - m_dragR_start) * glm::vec2(-1, -1);
    m_cur = loc;
    canvas->m_cam_rot = m_pan * 0.003f;
}
void CanvasModePen::on_MouseScroll(MouseEvent* me, glm::vec2& loc)
{
    m_zoom_canvas += me->m_scroll_delta * 0.1f;
    canvas->m_cam_fov -= me->m_scroll_delta * 20.1f;
}
void CanvasModePen::on_MouseCancel(MouseEvent* me, glm::vec2& loc)
{
    m_dragging = false;
    node->mouse_release();
}
void CanvasModePen::on_GestureStart(GestureEvent* ge)
{
    m_pan_start = m_pan;
    m_zoom_start = m_zoom_canvas;
    m_camera_fov = canvas->m_cam_fov;
}
void CanvasModePen::on_GestureMove(GestureEvent* ge)
{
    m_pan = m_pan_start + ge->m_pos_delta * glm::vec2(-1, -1) * 0.3f;
    canvas->m_cam_fov = m_camera_fov - ge->m_distance_delta * .05f;
    canvas->m_cam_rot = m_pan * 0.003f;
}