Route canvas camera reset through app core

src/app_core/canvas_view.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <array>
+
+namespace pp::app {
+
+struct CanvasCameraState {
+    std::array<float, 16> rotation {};
+    std::array<float, 3> position {};
+    float field_of_view_degrees = 85.0F;
+    std::array<float, 2> pan {};
+};
+
+[[nodiscard]] constexpr CanvasCameraState plan_canvas_camera_reset() noexcept
+{
+    CanvasCameraState state;
+    state.rotation = {
+        1.0F, 0.0F, 0.0F, 0.0F,
+        0.0F, 1.0F, 0.0F, 0.0F,
+        0.0F, 0.0F, 1.0F, 0.0F,
+        0.0F, 0.0F, 0.0F, 1.0F,
+    };
+    state.position = { 0.0F, 0.0F, 0.0F };
+    state.field_of_view_degrees = 85.0F;
+    state.pan = { 0.0F, 0.0F };
+    return state;
+}
+
+} // namespace pp::app

src/node_canvas.cpp

@@ -8,6 +8,7 @@
 
 #include "app_core/canvas_hotkey.h"
 #include "app_core/canvas_tool_ui.h"
+#include "app_core/canvas_view.h"
 #include "app_core/document_animation.h"
 #include "app.h"
 #include "legacy_canvas_tool_services.h"
@@ -978,10 +979,22 @@ kEventResult NodeCanvas::handle_event(Event* e)
 
 void NodeCanvas::reset_camera()
 {
-    m_canvas->m_cam_rot = glm::mat4(1);
-    m_canvas->m_cam_pos = {0, 0, 0};
-    m_canvas->m_cam_fov = 85;
-    m_canvas->m_pan = {0, 0};
+    const auto state = pp::app::plan_canvas_camera_reset();
+    m_canvas->m_cam_rot = glm::mat4(
+        state.rotation[0], state.rotation[1], state.rotation[2], state.rotation[3],
+        state.rotation[4], state.rotation[5], state.rotation[6], state.rotation[7],
+        state.rotation[8], state.rotation[9], state.rotation[10], state.rotation[11],
+        state.rotation[12], state.rotation[13], state.rotation[14], state.rotation[15]);
+    m_canvas->m_cam_pos = {
+        state.position[0],
+        state.position[1],
+        state.position[2],
+    };
+    m_canvas->m_cam_fov = state.field_of_view_degrees;
+    m_canvas->m_pan = {
+        state.pan[0],
+        state.pan[1],
+    };
 }
 
 void NodeCanvas::create_buffers()