Extract canvas projection helpers and thin preview and node loading

src/legacy_ui_node_loader.cpp

@@ -0,0 +1,180 @@
+#include "pch.h"
+#include "legacy_ui_node_loader.h"
+
+#include "log.h"
+#include "node.h"
+#include "layout.h"
+#include "node_about.h"
+#include "node_border.h"
+#include "node_button.h"
+#include "node_button_custom.h"
+#include "node_canvas.h"
+#include "node_changelog.h"
+#include "node_checkbox.h"
+#include "node_color_quad.h"
+#include "node_colorwheel.h"
+#include "node_combobox.h"
+#include "node_dialog_browse.h"
+#include "node_dialog_cloud.h"
+#include "node_dialog_picker.h"
+#include "node_icon.h"
+#include "node_image.h"
+#include "node_image_texture.h"
+#include "node_metadata.h"
+#include "node_panel_animation.h"
+#include "node_panel_brush.h"
+#include "node_panel_color.h"
+#include "node_panel_grid.h"
+#include "node_panel_layer.h"
+#include "node_panel_quick.h"
+#include "node_panel_stroke.h"
+#include "node_popup_menu.h"
+#include "node_scroll.h"
+#include "node_slider.h"
+#include "node_stroke_preview.h"
+#include "node_text.h"
+#include "node_text_input.h"
+#include "node_tool_bucket.h"
+#include "node_usermanual.h"
+#include "node_viewport.h"
+#include "util.h"
+
+namespace pp::panopainter {
+namespace {
+
+bool should_skip_child_for_os(const tinyxml2::XMLElement& x_child)
+{
+    if (auto os = x_child.Attribute("os"))
+    {
+        auto osv = split(os, ',');
+        if (std::find(osv.begin(), osv.end(), PP_OS) == osv.end())
+        {
+            LOG("Element %s not for this os(%s), skipping", x_child.Name(), PP_OS)
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void load_ref_child(Node& parent, const tinyxml2::XMLElement& x_child)
+{
+    auto ids = x_child.Attribute("id");
+    auto id = const_hash(ids);
+    auto& ref = (*parent.m_manager)[id]->m_children[0];
+    auto n = ref->clone();
+    n->m_nodeID_s = ids;
+    n->m_nodeID = id;
+    parent.add_child(n);
+}
+
+void load_text_child(Node& parent, const tinyxml2::XMLElement& x_child)
+{
+    auto n = new NodeText();
+    parent.add_child(n);
+    n->load_internal(&x_child, true);
+
+    std::string text;
+    auto node = x_child.FirstChild();
+    while (node)
+    {
+        if (auto e = node->ToElement())
+        {
+            if (strcmp(e->Name(), "br") == 0)
+                text.append("\n");
+        }
+        else if (auto t = node->ToText())
+        {
+            text.append(t->Value());
+        }
+        node = node->NextSibling();
+    }
+
+    if (!text.empty())
+        n->set_text(text);
+}
+
+Node* instantiate_child_node(std::string_view node_name)
+{
+    if (node_name == "node") return new Node();
+    if (node_name == "border") return new NodeBorder();
+    if (node_name == "image") return new NodeImage();
+    if (node_name == "image-texture") return new NodeImageTexture();
+    if (node_name == "icon") return new NodeIcon();
+    if (node_name == "text-input") return new NodeTextInput();
+    if (node_name == "button") return new NodeButton();
+    if (node_name == "button-custom") return new NodeButtonCustom();
+    if (node_name == "combobox") return new NodeComboBox();
+    if (node_name == "slider-h") return new NodeSliderH();
+    if (node_name == "slider-v") return new NodeSliderV();
+    if (node_name == "slider-hue") return new NodeSliderHue();
+    if (node_name == "popup-menu") return new NodePopupMenu();
+    if (node_name == "viewport") return new NodeViewport();
+    if (node_name == "checkbox") return new NodeCheckBox();
+    if (node_name == "layer") return new NodeLayer();
+    if (node_name == "panel-layer") return new NodePanelLayer();
+    if (node_name == "panel-brush") return new NodePanelBrush();
+    if (node_name == "panel-color") return new NodePanelColor();
+    if (node_name == "panel-stroke") return new NodePanelStroke();
+    if (node_name == "panel-grid") return new NodePanelGrid();
+    if (node_name == "panel-quick") return new NodePanelQuick();
+    if (node_name == "dialog-browse") return new NodeDialogBrowse();
+    if (node_name == "dialog-browse-item") return new NodeDialogBrowseItem();
+    if (node_name == "dialog-cloud") return new NodeDialogCloud();
+    if (node_name == "dialog-cloud-item") return new NodeDialogCloudItem();
+    if (node_name == "color-picker") return new NodeColorPicker();
+    if (node_name == "about") return new NodeAbout();
+    if (node_name == "changelog") return new NodeChangelog();
+    if (node_name == "usermanual") return new NodeUserManual();
+    if (node_name == "tool-bucket") return new NodeToolBucket();
+    if (node_name == "timeline") return new NodeAnimationTimeline();
+    if (node_name == "stroke-preview") return new NodeStrokePreview();
+    if (node_name == "canvas") return new NodeCanvas();
+    if (node_name == "scroll") return new NodeScroll();
+    if (node_name == "metadata") return new NodeMetadata();
+    if (node_name == "colorwheel") return new NodeColorWheel();
+    if (node_name == "color-quad") return new NodeColorQuad();
+    return nullptr;
+}
+
+void load_typed_child(Node& parent, const tinyxml2::XMLElement& x_child, std::string_view node_name)
+{
+    if (auto* n = instantiate_child_node(node_name))
+    {
+        parent.add_child(n);
+        n->load_internal(&x_child);
+        return;
+    }
+
+    LOG("instancing UNKNOWN node: %s", x_child.Name());
+    auto* n = new Node();
+    parent.add_child(n);
+    n->load_internal(&x_child);
+}
+
+} // namespace
+
+void load_legacy_ui_children(Node& parent, const tinyxml2::XMLElement& x_node)
+{
+    auto x_child = x_node.FirstChildElement();
+    while (x_child)
+    {
+        if (should_skip_child_for_os(*x_child))
+        {
+            x_child = x_child->NextSiblingElement();
+            continue;
+        }
+
+        std::string_view node_name = x_child->Name();
+        if (node_name == "ref")
+            load_ref_child(parent, *x_child);
+        else if (node_name == "text")
+            load_text_child(parent, *x_child);
+        else
+            load_typed_child(parent, *x_child, node_name);
+
+        x_child = x_child->NextSiblingElement();
+    }
+}
+
+} // namespace pp::panopainter