57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
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#pragma once
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#include "draggable.h"
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#include "raymath.h"
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#include "state.h"
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namespace VISEQ::APP::CANVAS {
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class Canvas : public BASE::Draggable {
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public:
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Canvas() {}
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Camera2D camera;
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Vec2Df camera_delta;
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virtual bool hovering() override {
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return true;
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}
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virtual void drag() override {
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if(state->mouse_right.down) {
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camera.target = Vector2Add(camera.target, camera_delta);
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}
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}
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virtual void drawStart(){
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BeginMode2D(camera);
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}
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virtual void drawEnd(){
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EndMode2D();
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}
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virtual void draw(){
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camera_delta = state->mouse_delta * (-1.0f/camera.zoom);
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if(hovering()) drag();
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float wheel = GetMouseWheelMove();
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if(wheel != 0){
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if(!IsKeyDown(KEY_LEFT_SHIFT) && !IsKeyDown(KEY_LEFT_CONTROL) && !IsKeyDown(KEY_LEFT_ALT)){
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camera.offset = state->raw_mouse;
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camera.target = state->screen_mouse;
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float scaleFactor = 1.0f + (0.25f*fabsf(wheel));
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if (wheel < 0) scaleFactor = 1.0f/scaleFactor;
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camera.zoom = Clamp(camera.zoom*scaleFactor, 0.125f, 64.0f);
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}
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}
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for(int x = -state->settings.grid*100; x < state->settings.grid*100; x+=state->settings.grid){
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for(int y = -state->settings.grid*100; y < state->settings.grid*100; y+=state->settings.grid){
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DrawPixel(x, y, (Color){130,130,130,200});
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}
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}
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}
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};
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}
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