302 lines
12 KiB
C++
302 lines
12 KiB
C++
#include "pch.h"
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#include "log.h"
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#include "node_canvas.h"
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#define RES 2048
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Node* NodeCanvas::clone_instantiate() const
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{
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return new NodeCanvas();
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}
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void NodeCanvas::init()
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{
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m_mouse_ignore = false;
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m_canvas = std::make_unique<ui::Canvas>();
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m_canvas->create(RES, RES);
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m_sampler.create(GL_NEAREST);
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m_face_plane.create<1>(2, 2);
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m_line.create();
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CanvasMode::node = this;
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CanvasMode::canvas = m_canvas.get();
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for (int i = 0; i < (int)ui::Canvas::kCanvasMode::COUNT; i++)
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for (auto m : ui::Canvas::modes[i])
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m->init();
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}
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void NodeCanvas::restore_context()
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{
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Node::restore_context();
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m_canvas->create(RES, RES);
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m_sampler.create(GL_NEAREST);
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m_face_plane.create<1>(2, 2);
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m_canvas->snapshot_restore();
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CanvasMode::node = this;
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CanvasMode::canvas = m_canvas.get();
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for (int i = 0; i < (int)ui::Canvas::kCanvasMode::COUNT; i++)
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for (auto m : ui::Canvas::modes[i])
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m->init();
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}
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void NodeCanvas::clear_context()
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{
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Node::clear_context();
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m_canvas->snapshot_save(data_path);
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m_canvas->clear_context();
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// TODO: clear CanvasMode objects
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}
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void NodeCanvas::draw()
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{
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using namespace ui;
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GLint vp[4];
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GLfloat cc[4];
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glGetIntegerv(GL_VIEWPORT, vp);
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glGetFloatv(GL_COLOR_CLEAR_VALUE, cc);
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glClearColor(0, 0, 0, 1);
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glClear(GL_COLOR_BUFFER_BIT);
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float zoom = root()->m_zoom;
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auto box = m_clip * zoom;
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glm::ivec4 c = (glm::ivec4)glm::vec4(box.x, (int)(vp[3] - box.y - box.w), box.z, box.w);
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glViewport(c.x, c.y, c.z, c.w);
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//m_canvas->m_cam_rot = m_pan * 0.003f;
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glm::mat4 ortho_proj = glm::ortho(0.f, box.z, 0.f, box.w, -1000.f, 1000.f);
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glm::mat4 proj = glm::perspective(glm::radians(m_canvas->m_cam_fov), box.z / box.w, 0.1f, 1000.f);
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glm::mat4 camera = glm::eulerAngleXY(m_canvas->m_cam_rot.y, m_canvas->m_cam_rot.x) *
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glm::translate(m_canvas->m_cam_pos);
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m_canvas->m_mv = camera;
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m_canvas->m_proj = proj;
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m_canvas->m_box = box;
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// auto plane_mvp = proj * camera * transform *
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// glm::scale(glm::vec3(sz, 1));
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m_sampler.bind(0);
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m_sampler.bind(1);
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m_sampler.bind(2);
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auto blend = glIsEnabled(GL_BLEND);
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auto depth = glIsEnabled(GL_DEPTH_TEST);
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glDisable(GL_BLEND);
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glDisable(GL_DEPTH_TEST);
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glClear(GL_DEPTH_BUFFER_BIT);
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for (int plane_index = 0; plane_index < 6; plane_index++)
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{
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auto plane_mvp = proj * camera *
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glm::scale(glm::vec3(m_canvas->m_order.size() + 500)) *
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m_canvas->m_plane_transform[plane_index] *
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glm::translate(glm::vec3(0, 0, -1));
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ui::ShaderManager::use(kShader::Checkerboard);
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ui::ShaderManager::u_mat4(kShaderUniform::MVP, plane_mvp);
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m_face_plane.draw_fill();
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}
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glEnable(GL_BLEND);
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glEnable(GL_DEPTH_TEST);
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glClear(GL_DEPTH_BUFFER_BIT);
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for (size_t i = 0; i < m_canvas->m_order.size(); i++)
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{
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auto layer_index = m_canvas->m_order[i];
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for (int plane_index = 0; plane_index < 6; plane_index++)
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{
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if (m_canvas->m_layers[layer_index].m_opacity == .0f)
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continue;
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int z = (int)m_canvas->m_order.size() - i;
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auto plane_mvp_z = proj * camera *
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glm::scale(glm::vec3(z + 1)) *
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m_canvas->m_plane_transform[plane_index] *
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glm::translate(glm::vec3(0, 0, -1));
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if (m_canvas->m_state == ui::Canvas::kCanvasMode::Erase && m_canvas->m_show_tmp && m_canvas->m_current_layer_idx == layer_index)
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{
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ui::ShaderManager::use(kShader::CompErase);
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ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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ui::ShaderManager::u_int(kShaderUniform::TexStroke, 1);
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ui::ShaderManager::u_int(kShaderUniform::TexMask, 2);
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ui::ShaderManager::u_float(kShaderUniform::Alpha, m_canvas->m_current_stroke->m_brush.m_tip_opacity);
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ui::ShaderManager::u_int(kShaderUniform::Lock, m_canvas->m_layers[m_canvas->m_current_layer_idx].m_alpha_locked);
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ui::ShaderManager::u_int(kShaderUniform::Mask, m_canvas->m_smask_active);
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ui::ShaderManager::u_mat4(kShaderUniform::MVP, plane_mvp_z);
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glActiveTexture(GL_TEXTURE0);
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m_canvas->m_layers[layer_index].m_rtt[plane_index].bindTexture();
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glActiveTexture(GL_TEXTURE1);
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m_canvas->m_tmp[plane_index].bindTexture();
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glActiveTexture(GL_TEXTURE2);
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m_canvas->m_smask.m_rtt[plane_index].bindTexture();
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m_face_plane.draw_fill();
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m_canvas->m_smask.m_rtt[plane_index].unbindTexture();
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glActiveTexture(GL_TEXTURE1);
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m_canvas->m_tmp[plane_index].unbindTexture();
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glActiveTexture(GL_TEXTURE0);
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m_canvas->m_layers[layer_index].m_rtt[plane_index].unbindTexture();
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}
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else if(m_canvas->m_show_tmp && m_canvas->m_current_layer_idx == layer_index)
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{
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ui::ShaderManager::use(kShader::CompDraw);
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ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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ui::ShaderManager::u_int(kShaderUniform::TexStroke, 1);
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ui::ShaderManager::u_int(kShaderUniform::TexMask, 2);
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ui::ShaderManager::u_float(kShaderUniform::Alpha, m_canvas->m_current_stroke->m_brush.m_tip_opacity);
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ui::ShaderManager::u_int(kShaderUniform::Lock, m_canvas->m_layers[m_canvas->m_current_layer_idx].m_alpha_locked);
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ui::ShaderManager::u_int(kShaderUniform::Mask, m_canvas->m_smask_active);
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ui::ShaderManager::u_mat4(kShaderUniform::MVP, plane_mvp_z);
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glActiveTexture(GL_TEXTURE0);
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m_canvas->m_layers[layer_index].m_rtt[plane_index].bindTexture();
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glActiveTexture(GL_TEXTURE1);
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m_canvas->m_tmp[plane_index].bindTexture();
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glActiveTexture(GL_TEXTURE2);
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m_canvas->m_smask.m_rtt[plane_index].bindTexture();
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m_face_plane.draw_fill();
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m_canvas->m_smask.m_rtt[plane_index].unbindTexture();
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glActiveTexture(GL_TEXTURE1);
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m_canvas->m_tmp[plane_index].unbindTexture();
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glActiveTexture(GL_TEXTURE0);
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m_canvas->m_layers[layer_index].m_rtt[plane_index].unbindTexture();
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}
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else
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{
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ui::ShaderManager::use(kShader::TextureAlpha);
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ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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ui::ShaderManager::u_float(kShaderUniform::Alpha, m_canvas->m_layers[layer_index].m_opacity);
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ui::ShaderManager::u_int(kShaderUniform::Highlight, m_canvas->m_layers[layer_index].m_hightlight);
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ui::ShaderManager::u_mat4(kShaderUniform::MVP, plane_mvp_z);
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glActiveTexture(GL_TEXTURE0);
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m_canvas->m_layers[layer_index].m_rtt[plane_index].bindTexture();
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m_face_plane.draw_fill();
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m_canvas->m_layers[layer_index].m_rtt[plane_index].unbindTexture();
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}
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// if (m_canvas->m_show_tmp && m_canvas->m_current_layer_idx == layer_index)
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// {
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// glDisable(GL_BLEND);
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// ui::ShaderManager::use(kShader::TextureAlpha);
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// ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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// ui::ShaderManager::u_float(kShaderUniform::Alpha, m_canvas->m_layers[layer_index].m_opacity);
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// ui::ShaderManager::u_mat4(kShaderUniform::MVP, plane_mvp_z);
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// ui::ShaderManager::u_float(kShaderUniform::Alpha, 1);
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// m_canvas->m_tmp[plane_index].bindTexture();
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// m_face_plane.draw_fill();
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// m_canvas->m_tmp[plane_index].unbindTexture();
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// glEnable(GL_BLEND);
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// }
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}
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}
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for (auto& mode : *m_canvas->m_mode)
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mode->on_Draw(ortho_proj, proj, camera);
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// keep drawing the grids
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if (m_canvas->m_state != ui::Canvas::kCanvasMode::Grid)
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for (auto& mode : ui::Canvas::modes[(int)ui::Canvas::kCanvasMode::Grid])
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mode->on_Draw(ortho_proj, proj, camera);
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//ui::ShaderManager::use(kShader::Equirect);
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//ui::ShaderManager::u_mat4(kShaderUniform::MVP, glm::scale(glm::vec3(.5, .5, 1)));
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//ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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//glBindTexture(GL_TEXTURE_CUBE_MAP, m_canvas->cube_id);
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//m_face_plane.draw_fill();
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//glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
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// ui::ShaderManager::use(kShader::Color);
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// ui::ShaderManager::u_mat4(kShaderUniform::MVP, proj * camera);
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// ui::ShaderManager::u_vec4(kShaderUniform::Col, { 1, 0, 0, 1 });
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// static glm::vec4 AB[4]{ {-.75, 0, -1, 1},{ -.75, 0, 1, 1 } };
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// m_line.update_vertices(AB);
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// m_line.draw_stroke();
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blend ? glEnable(GL_BLEND) : glDisable(GL_BLEND);
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depth ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
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m_sampler.unbind();
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glViewport(vp[0], vp[1], vp[2], vp[3]);
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glClearColor(cc[0], cc[1], cc[2], cc[3]);
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}
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void NodeCanvas::handle_resize(glm::vec2 old_size, glm::vec2 new_size)
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{
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if (new_size.x > m_canvas->m_width)
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{
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// m_canvas->resize((int)new_size.x, (int)new_size.y);
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// m_canvas->clear();
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}
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}
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kEventResult NodeCanvas::handle_event(Event* e)
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{
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static std::vector<CanvasMode>* old_mode = nullptr;
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Node::handle_event(e);
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MouseEvent* me = static_cast<MouseEvent*>(e);
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KeyEvent* ke = static_cast<KeyEvent*>(e);
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GestureEvent* ge = static_cast<GestureEvent*>(e);
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auto loc = (me->m_pos - m_pos) * root()->m_zoom;
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switch (e->m_type)
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{
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case kEventType::MouseScroll:
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case kEventType::MouseDownL:
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case kEventType::MouseUpL:
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case kEventType::MouseDownR:
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case kEventType::MouseUpR:
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case kEventType::MouseMove:
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case kEventType::MouseCancel:
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if (!(m_canvas->m_touch_lock && me->m_source == kEventSource::Touch))
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for (auto& mode : *m_canvas->m_mode)
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mode->on_MouseEvent(me, loc);
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break;
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case kEventType::KeyDown:
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// if (ke->m_key == kKey::KeyE)
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// m_canvas->m_state = ui::Canvas::kPenState::Erase;
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// if (ke->m_key == kKey::KeySpacebar)
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// m_canvas->m_alpha_lock = true;
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// if (ke->m_key == kKey::AndroidVolumeUp)
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// m_zoom_canvas *= 0.9f;
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// if (ke->m_key == kKey::AndroidVolumeDown)
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// m_zoom_canvas *= 1.1f;
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if (ke->m_key == kKey::AndroidBack)
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if (!ActionManager::empty())
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ActionManager::undo();
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break;
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case kEventType::KeyUp:
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// if (ke->m_key == kKey::KeyE)
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// m_canvas->m_state = ui::Canvas::kPenState::Draw;
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// if (ke->m_key == kKey::KeySpacebar)
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// m_canvas->m_alpha_lock = false;
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break;
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case kEventType::GestureStart:
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mouse_capture();
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for (auto& mode : *m_canvas->m_mode)
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mode->on_GestureEvent(ge);
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break;
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case kEventType::GestureMove:
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for (auto& mode : *m_canvas->m_mode)
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mode->on_GestureEvent(ge);
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break;
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case kEventType::GestureEnd:
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mouse_release();
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for (auto& mode : *m_canvas->m_mode)
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mode->on_GestureEvent(ge);
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break;
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default:
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return kEventResult::Available;
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break;
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}
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return kEventResult::Consumed;
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}
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void NodeCanvas::reset_camera()
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{
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m_canvas->m_cam_rot = {0, 0};
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m_canvas->m_cam_pos = {0, 0, 0};
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m_canvas->m_cam_fov = 85;
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m_canvas->m_pan = {0, 0};
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}
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