Files
anm2ed/src/canvas.h
2025-11-30 22:25:57 -05:00

65 lines
2.0 KiB
C++

#pragma once
#include <glad/glad.h>
#include <glm/glm.hpp>
#include "framebuffer.h"
#include "shader.h"
namespace anm2ed::canvas
{
constexpr float TEXTURE_VERTICES[] = {0, 0, 0.0f, 0.0f, 1, 0, 1.0f, 0.0f, 1, 1, 1.0f, 1.0f, 0, 1, 0.0f, 1.0f};
constexpr auto PIVOT_SIZE = glm::vec2(8, 8);
constexpr auto ZOOM_MIN = 1.0f;
constexpr auto ZOOM_MAX = 2000.0f;
constexpr auto DASH_LENGTH = 4.0f;
constexpr auto DASH_GAP = 1.0f;
constexpr auto DASH_OFFSET = 1.0f;
constexpr auto STEP = 1.0f;
constexpr auto STEP_FAST = 5.0f;
constexpr auto GRID_SIZE_MIN = 1;
constexpr auto GRID_SIZE_MAX = 10000;
constexpr auto GRID_OFFSET_MIN = 0;
constexpr auto GRID_OFFSET_MAX = 10000;
constexpr auto CHECKER_SIZE = 32.0f;
}
namespace anm2ed
{
class Canvas : public Framebuffer
{
public:
GLuint axisVAO{};
GLuint axisVBO{};
GLuint rectVAO{};
GLuint rectVBO{};
GLuint gridVAO{};
GLuint gridVBO{};
GLuint textureVAO{};
GLuint textureVBO{};
GLuint textureEBO{};
Canvas();
Canvas(glm::vec2);
~Canvas();
glm::mat4 transform_get(float = 100.0f, glm::vec2 = {}) const;
void axes_render(resource::Shader&, float, glm::vec2, glm::vec4 = glm::vec4(1.0f)) const;
void grid_render(resource::Shader&, float, glm::vec2, glm::ivec2 = glm::ivec2(32, 32), glm::ivec2 = {},
glm::vec4 = glm::vec4(1.0f)) const;
void texture_render(resource::Shader&, GLuint&, glm::mat4 = {1.0f}, glm::vec4 = glm::vec4(1.0f), glm::vec3 = {},
float* = (float*)canvas::TEXTURE_VERTICES) const;
void rect_render(resource::Shader&, const glm::mat4&, const glm::mat4&, glm::vec4 = glm::vec4(1.0f),
float dashLength = canvas::DASH_LENGTH, float dashGap = canvas::DASH_GAP,
float dashOffset = canvas::DASH_OFFSET) const;
void zoom_set(float&, glm::vec2&, glm::vec2, float) const;
glm::vec2 position_translate(float&, glm::vec2&, glm::vec2) const;
void set_to_rect(float& zoom, glm::vec2& pan, glm::vec4 rect) const;
};
}