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Thin canvas modes, node execution, and canvas draw shell

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This commit is contained in:
omigamedev
2026-06-16 18:30:24 +02:00
parent 8906756d12
commit b56a46a82c
9 changed files with 398 additions and 320 deletions
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190
src/legacy_canvas_mode_helpers.cpp Normal file
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#include "pch.h"
#include "legacy_canvas_mode_helpers.h"
#include "app.h"
#include "canvas.h"
#include "canvas_modes.h"
#include "legacy_ui_overlay_services.h"
#include "legacy_ui_gl_dispatch.h"
#include "renderer_gl/opengl_capabilities.h"
namespace pp::legacy_canvas_mode {
void set_canvas_mode_active_texture_unit(std::uint32_t unit_index)
{
pp::legacy::ui_gl::activate_texture_unit(unit_index, "CanvasMode");
}
void apply_canvas_mode_capability(std::uint32_t state, bool enabled)
{
pp::legacy::ui_gl::set_capability(state, enabled, "CanvasMode");
}
bool query_canvas_mode_capability(std::uint32_t state)
{
return pp::legacy::ui_gl::query_capability(state, "CanvasMode");
}
void apply_canvas_mode_viewport(std::int32_t x, std::int32_t y, std::int32_t width, std::int32_t height)
{
pp::legacy::ui_gl::apply_viewport(x, y, width, height, "CanvasMode");
}
std::uint32_t query_canvas_mode_read_framebuffer()
{
return pp::legacy::ui_gl::query_read_framebuffer("CanvasMode");
}
void read_canvas_mode_pixel(std::int32_t x, std::int32_t y, glm::u8vec4& pixel)
{
pp::legacy::ui_gl::read_framebuffer_rgba8_pixel(
query_canvas_mode_read_framebuffer(),
x,
y,
&pixel,
"CanvasMode");
}
}
void CanvasModeBasicCamera::on_MouseEvent(MouseEvent* me, glm::vec2& loc)
{
switch (me->m_type)
{
case kEventType::MouseDownL:
// if (Canvas::I->m_touch_lock && me->m_source == kEventSource::Touch)
// {
// m_draggingR = true;
// m_dragR_start = me->m_pos;
// m_pan_start = Canvas::I->m_pan;
// node->mouse_capture();
// }
if (App::I->keys[(int)kKey::KeySpacebar])
{
m_draggingL = true;
m_pan_start = Canvas::I->m_pan;
m_dragL_start = me->m_pos;
node->mouse_capture();
}
break;
case kEventType::MouseUpL:
// if (Canvas::I->m_touch_lock && me->m_source == kEventSource::Touch)
// {
// m_draggingR = false;
// node->mouse_release();
// }
if (m_draggingL)
{
m_draggingL = false;
pp::panopainter::release_legacy_mouse_capture(*node);
}
break;
case kEventType::MouseDownR:
if (App::I->keys[(int)kKey::KeyAlt])
break;
m_zooming = App::I->keys[(int)kKey::KeyCtrl];
m_draggingR = true;
m_dragR_start = me->m_pos;
m_pan_start = Canvas::I->m_pan;
m_fov_start = Canvas::I->m_cam_fov;
node->mouse_capture();
break;
case kEventType::MouseUpR:
m_draggingR = false;
pp::panopainter::release_legacy_mouse_capture(*node);
break;
case kEventType::MouseMove:
if (m_draggingR)
{
if (m_zooming)
{
Canvas::I->m_cam_fov = glm::clamp(m_fov_start - (me->m_pos.x - m_dragR_start.x) * 0.05f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
}
else
{
auto dir = (App::I->has_vr && App::I->vr_active) ? glm::vec2(1, 1) : glm::vec2(-1, -1);
Canvas::I->m_pan = m_pan_start + (me->m_pos - m_dragR_start) * dir * (Canvas::I->m_cam_fov / 85.f);
auto angle = Canvas::I->m_pan * 0.003f;
Canvas::I->m_cam_rot = glm::eulerAngleXY(angle.y, angle.x);
}
}
if (m_draggingL)
{
Canvas::I->m_pan = m_pan_start + (me->m_pos - m_dragL_start) * glm::vec2(-1, -1) * (Canvas::I->m_cam_fov / 85.f);
auto angle = Canvas::I->m_pan * 0.003f;
Canvas::I->m_cam_rot = glm::eulerAngleXY(angle.y, angle.x);
}
break;
case kEventType::MouseScroll:
m_zoom_canvas += me->m_scroll_delta * 0.1f;
Canvas::I->m_cam_fov = glm::clamp(Canvas::I->m_cam_fov - me->m_scroll_delta * 2.0f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
//App::I->brush_update(true, true);
break;
case kEventType::MouseCancel:
m_draggingR = false;
pp::panopainter::release_legacy_mouse_capture(*node);
break;
default:
break;
}
}
void CanvasModeBasicCamera::on_GestureEvent(GestureEvent* ge)
{
switch (ge->m_type)
{
case kEventType::GestureStart:
m_pan_start = Canvas::I->m_pan;
m_zoom_start = m_zoom_canvas;
m_camera_fov = Canvas::I->m_cam_fov;
break;
case kEventType::GestureMove:
{
Canvas::I->m_pan = m_pan_start + ge->m_pos_delta * glm::vec2(-1, -1) * 0.3f * (Canvas::I->m_cam_fov / 85.f);
Canvas::I->m_cam_fov = glm::clamp(m_camera_fov - ge->m_distance_delta * .05f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
auto angle = Canvas::I->m_pan * 0.003f;
Canvas::I->m_cam_rot = glm::eulerAngleXY(angle.y, angle.x);
//App::I->brush_update(true, true);
break;
}
default:
break;
}
}
void CanvasModeCamera::on_MouseEvent(MouseEvent* me, glm::vec2& loc)
{
if (Canvas::I->m_touch_lock && me->m_source == kEventSource::Touch)
return;
switch (me->m_type)
{
case kEventType::MouseDownR:
Canvas::I->m_cam_pos = { 0, 0, 0 };
break;
case kEventType::MouseDownL:
m_dragging = true;
m_drag_start = me->m_pos;
m_pos_start = xy(Canvas::I->m_cam_pos);
node->mouse_capture();
break;
case kEventType::MouseUpL:
m_dragging = false;
pp::panopainter::release_legacy_mouse_capture(*node);
Canvas::I->m_cam_pos = { 0, 0, 0 };
break;
case kEventType::MouseMove:
if (m_dragging)
Canvas::I->m_cam_pos = glm::vec3(m_pos_start + (me->m_pos - m_drag_start) * glm::vec2(1, -1) * 0.001f, Canvas::I->m_cam_pos.z);
break;
case kEventType::MouseCancel:
m_dragging = false;
pp::panopainter::release_legacy_mouse_capture(*node);
break;
default:
break;
}
}