/**************************************************************************/ /* gradient_texture_2d_editor_plugin.cpp */ /**************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /**************************************************************************/ /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /**************************************************************************/ #include "gradient_texture_2d_editor_plugin.h" #include "editor/editor_node.h" #include "editor/editor_scale.h" #include "editor/editor_undo_redo_manager.h" #include "editor/gui/editor_spin_slider.h" #include "scene/gui/box_container.h" #include "scene/gui/button.h" #include "scene/gui/flow_container.h" #include "scene/gui/separator.h" Point2 GradientTexture2DEditorRect::_get_handle_position(const Handle p_handle) { // Get the handle's mouse position in pixels relative to offset. return (p_handle == HANDLE_FILL_FROM ? texture->get_fill_from() : texture->get_fill_to()).clamp(Vector2(), Vector2(1, 1)) * size; } void GradientTexture2DEditorRect::_update_fill_position() { if (handle == HANDLE_NONE) { return; } // Update the texture's fill_from/fill_to property based on mouse input. Vector2 percent = ((get_local_mouse_position() - offset) / size).clamp(Vector2(), Vector2(1, 1)); if (snap_enabled) { percent = (percent - Vector2(0.5, 0.5)).snapped(Vector2(snap_size, snap_size)) + Vector2(0.5, 0.5); } String property_name = handle == HANDLE_FILL_FROM ? "fill_from" : "fill_to"; EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton(); undo_redo->create_action(vformat(TTR("Set %s"), property_name), UndoRedo::MERGE_ENDS); undo_redo->add_do_property(texture.ptr(), property_name, percent); undo_redo->add_undo_property(texture.ptr(), property_name, handle == HANDLE_FILL_FROM ? texture->get_fill_from() : texture->get_fill_to()); undo_redo->commit_action(); } void GradientTexture2DEditorRect::gui_input(const Ref<InputEvent> &p_event) { // Grab/release handle. const Ref<InputEventMouseButton> mb = p_event; if (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT) { if (mb->is_pressed()) { Point2 mouse_position = mb->get_position() - offset; if (Rect2(_get_handle_position(HANDLE_FILL_FROM).round() - handle_size / 2, handle_size).has_point(mouse_position)) { handle = HANDLE_FILL_FROM; } else if (Rect2(_get_handle_position(HANDLE_FILL_TO).round() - handle_size / 2, handle_size).has_point(mouse_position)) { handle = HANDLE_FILL_TO; } else { handle = HANDLE_NONE; } } else { _update_fill_position(); handle = HANDLE_NONE; } } // Move handle. const Ref<InputEventMouseMotion> mm = p_event; if (mm.is_valid()) { _update_fill_position(); } } void GradientTexture2DEditorRect::set_texture(Ref<GradientTexture2D> &p_texture) { texture = p_texture; texture->connect("changed", callable_mp((CanvasItem *)this, &CanvasItem::queue_redraw)); } void GradientTexture2DEditorRect::set_snap_enabled(bool p_snap_enabled) { snap_enabled = p_snap_enabled; queue_redraw(); } void GradientTexture2DEditorRect::set_snap_size(float p_snap_size) { snap_size = p_snap_size; queue_redraw(); } void GradientTexture2DEditorRect::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_TREE: case NOTIFICATION_THEME_CHANGED: { checkerboard->set_texture(get_theme_icon(SNAME("GuiMiniCheckerboard"), SNAME("EditorIcons"))); } break; case NOTIFICATION_DRAW: { if (texture.is_null()) { return; } const Ref<Texture2D> fill_from_icon = get_theme_icon(SNAME("EditorPathSmoothHandle"), SNAME("EditorIcons")); const Ref<Texture2D> fill_to_icon = get_theme_icon(SNAME("EditorPathSharpHandle"), SNAME("EditorIcons")); handle_size = fill_from_icon->get_size(); Size2 rect_size = get_size(); // Get the size and position to draw the texture and handles at. // Subtract handle sizes so they stay inside the preview, but keep the texture's aspect ratio. Size2 available_size = rect_size - handle_size; Size2 ratio = available_size / texture->get_size(); size = MIN(ratio.x, ratio.y) * texture->get_size(); offset = ((rect_size - size) / 2).round(); checkerboard->set_rect(Rect2(offset, size)); draw_set_transform(offset); draw_texture_rect(texture, Rect2(Point2(), size)); // Draw grid snap lines. if (snap_enabled) { const Color primary_line_color = Color(0.5, 0.5, 0.5, 0.9); const Color line_color = Color(0.5, 0.5, 0.5, 0.5); // Draw border and centered axis lines. draw_rect(Rect2(Point2(), size), primary_line_color, false); draw_line(Point2(size.width / 2, 0), Point2(size.width / 2, size.height), primary_line_color); draw_line(Point2(0, size.height / 2), Point2(size.width, size.height / 2), primary_line_color); // Draw vertical lines. int prev_idx = 0; for (int x = 0; x < size.width; x++) { int idx = int((x / size.width - 0.5) / snap_size); if (x > 0 && prev_idx != idx) { draw_line(Point2(x, 0), Point2(x, size.height), line_color); } prev_idx = idx; } // Draw horizontal lines. prev_idx = 0; for (int y = 0; y < size.height; y++) { int idx = int((y / size.height - 0.5) / snap_size); if (y > 0 && prev_idx != idx) { draw_line(Point2(0, y), Point2(size.width, y), line_color); } prev_idx = idx; } } // Draw handles. draw_texture(fill_from_icon, (_get_handle_position(HANDLE_FILL_FROM) - handle_size / 2).round()); draw_texture(fill_to_icon, (_get_handle_position(HANDLE_FILL_TO) - handle_size / 2).round()); } break; } } GradientTexture2DEditorRect::GradientTexture2DEditorRect() { checkerboard = memnew(TextureRect); checkerboard->set_stretch_mode(TextureRect::STRETCH_TILE); checkerboard->set_expand_mode(TextureRect::EXPAND_IGNORE_SIZE); checkerboard->set_draw_behind_parent(true); add_child(checkerboard, false, INTERNAL_MODE_FRONT); set_custom_minimum_size(Size2(0, 250 * EDSCALE)); } /////////////////////// void GradientTexture2DEditor::_reverse_button_pressed() { EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton(); undo_redo->create_action(TTR("Swap GradientTexture2D Fill Points")); undo_redo->add_do_property(texture.ptr(), "fill_from", texture->get_fill_to()); undo_redo->add_do_property(texture.ptr(), "fill_to", texture->get_fill_from()); undo_redo->add_undo_property(texture.ptr(), "fill_from", texture->get_fill_from()); undo_redo->add_undo_property(texture.ptr(), "fill_to", texture->get_fill_to()); undo_redo->commit_action(); } void GradientTexture2DEditor::_set_snap_enabled(bool p_enabled) { texture_editor_rect->set_snap_enabled(p_enabled); snap_size_edit->set_visible(p_enabled); } void GradientTexture2DEditor::_set_snap_size(float p_snap_size) { texture_editor_rect->set_snap_size(MAX(p_snap_size, 0.01)); } void GradientTexture2DEditor::set_texture(Ref<GradientTexture2D> &p_texture) { texture = p_texture; texture_editor_rect->set_texture(p_texture); } void GradientTexture2DEditor::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_TREE: case NOTIFICATION_THEME_CHANGED: { reverse_button->set_icon(get_theme_icon(SNAME("ReverseGradient"), SNAME("EditorIcons"))); snap_button->set_icon(get_theme_icon(SNAME("SnapGrid"), SNAME("EditorIcons"))); } break; } } GradientTexture2DEditor::GradientTexture2DEditor() { HFlowContainer *toolbar = memnew(HFlowContainer); add_child(toolbar); reverse_button = memnew(Button); reverse_button->set_tooltip_text(TTR("Swap Gradient Fill Points")); toolbar->add_child(reverse_button); reverse_button->connect("pressed", callable_mp(this, &GradientTexture2DEditor::_reverse_button_pressed)); toolbar->add_child(memnew(VSeparator)); snap_button = memnew(Button); snap_button->set_tooltip_text(TTR("Toggle Grid Snap")); snap_button->set_toggle_mode(true); toolbar->add_child(snap_button); snap_button->connect("toggled", callable_mp(this, &GradientTexture2DEditor::_set_snap_enabled)); snap_size_edit = memnew(EditorSpinSlider); snap_size_edit->set_min(0.01); snap_size_edit->set_max(0.5); snap_size_edit->set_step(0.01); snap_size_edit->set_value(0.1); snap_size_edit->set_custom_minimum_size(Size2(65 * EDSCALE, 0)); toolbar->add_child(snap_size_edit); snap_size_edit->connect("value_changed", callable_mp(this, &GradientTexture2DEditor::_set_snap_size)); texture_editor_rect = memnew(GradientTexture2DEditorRect); add_child(texture_editor_rect); set_mouse_filter(MOUSE_FILTER_STOP); _set_snap_enabled(snap_button->is_pressed()); _set_snap_size(snap_size_edit->get_value()); } /////////////////////// bool EditorInspectorPluginGradientTexture2D::can_handle(Object *p_object) { return Object::cast_to<GradientTexture2D>(p_object) != nullptr; } void EditorInspectorPluginGradientTexture2D::parse_begin(Object *p_object) { GradientTexture2D *texture = Object::cast_to<GradientTexture2D>(p_object); if (!texture) { return; } Ref<GradientTexture2D> t(texture); GradientTexture2DEditor *editor = memnew(GradientTexture2DEditor); editor->set_texture(t); add_custom_control(editor); } /////////////////////// GradientTexture2DEditorPlugin::GradientTexture2DEditorPlugin() { Ref<EditorInspectorPluginGradientTexture2D> plugin; plugin.instantiate(); add_inspector_plugin(plugin); }