infinipaint/src/DrawCamera.hpp

80 lines
3.1 KiB
C++

/*
* InfiniPaint
* Copyright (C) 2025-2026 Yousef Khadadeh
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <Eigen/Dense>
#include <Helpers/ConvertVec.hpp>
#include "SharedTypes.hpp"
#include <Helpers/SCollision.hpp>
#include "CoordSpaceHelper.hpp"
#include <Helpers/VersionNumber.hpp>
#include "InputManager.hpp"
using namespace Eigen;
class World;
class DrawCamera {
public:
DrawCamera();
CoordSpaceHelper c;
Vector2f viewingArea{-1, -1};
SCollision::AABB<WorldScalar> viewingAreaGenerousCollider;
void set_viewing_area(Vector2f viewingAreaNew);
void smooth_move_to(World& w, const CoordSpaceHelper& c, Vector2f windowSize, bool instantJump = false);
void set_based_on_properties(World& w, const WorldVec& newPos, const WorldScalar& newZoom, double newRotate);
void set_based_on_center(World& w, const WorldVec& newPos, const WorldScalar& newZoom, double newRotate);
void update_main(World& main);
void scale_up(World& w, const WorldScalar& scaleUpAmount);
void save_file(cereal::PortableBinaryOutputArchive& a, const World& w) const;
void load_file(cereal::PortableBinaryInputArchive& a, VersionNumber version, World& w);
void input_key_callback(const InputManager::KeyCallbackArgs& key);
void input_mouse_button_on_canvas_callback(World& w, const InputManager::MouseButtonCallbackArgs& button);
void input_mouse_motion_callback(World& w, const InputManager::MouseMotionCallbackArgs& motion);
void input_mouse_wheel_callback(World& w, const InputManager::MouseWheelCallbackArgs& wheel);
void input_multi_finger_touch_callback(World& w, const InputManager::MultiFingerTouchCallbackArgs& touch);
void input_multi_finger_motion_callback(World& w, const InputManager::MultiFingerMotionCallbackArgs& motion);
private:
struct SmoothMove {
CoordSpaceHelper start;
WorldVec startCenter;
WorldVec endCenter;
WorldScalar endUniformZoom;
CoordSpaceHelper end;
Vector2f endWindowSize;
bool occurring = false;
float moveTime;
} smoothMove;
WorldScalar startZoomVal;
WorldVec startZoomMousePos;
WorldVec startZoomCameraPos;
bool isAccurateZooming = false;
CoordSpaceHelper touchInitialC;
std::vector<Vector2f> touchInitialPositions;
bool isTouchTransforming = false;
void check_if_scale_up_required(World& w);
void checks_after_input(World& w);
};