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virtualx-engine/scene/main/window.h
Markus Sauermann 60aaa017ff Enable Drag and Drop for SubViewports and Windows 
Make Drag and Drop an application-wide operation.
This allows do drop on Controls in other Viewports/Windows.

In order to achieve this, `Viewport::_update_mouse_over` is adjusted to
remember the Control, that the mouse is over (possibly within nested
viewports). This Control is used as a basis for the Drop-operation, which
replaces the previous algorithm, which was only aware of the topmost
Viewport.

Also now all nodes in the SceneTree are notified about the Drag and Drop
operation, with the exception of SubViewports that are not children of
SubViewportContainers.
2024-09-15 01:06:02 +02:00

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/**************************************************************************/
/* window.h */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#ifndef WINDOW_H
#define WINDOW_H
#include "scene/main/viewport.h"
#include "scene/resources/theme.h"
class Font;
class Shortcut;
class StyleBox;
class ThemeOwner;
class ThemeContext;
class Window : public Viewport {
GDCLASS(Window, Viewport);
public:
// Keep synced with enum hint for `mode` property.
enum Mode {
MODE_WINDOWED = DisplayServer::WINDOW_MODE_WINDOWED,
MODE_MINIMIZED = DisplayServer::WINDOW_MODE_MINIMIZED,
MODE_MAXIMIZED = DisplayServer::WINDOW_MODE_MAXIMIZED,
MODE_FULLSCREEN = DisplayServer::WINDOW_MODE_FULLSCREEN,
MODE_EXCLUSIVE_FULLSCREEN = DisplayServer::WINDOW_MODE_EXCLUSIVE_FULLSCREEN,
};
enum Flags {
FLAG_RESIZE_DISABLED = DisplayServer::WINDOW_FLAG_RESIZE_DISABLED,
FLAG_BORDERLESS = DisplayServer::WINDOW_FLAG_BORDERLESS,
FLAG_ALWAYS_ON_TOP = DisplayServer::WINDOW_FLAG_ALWAYS_ON_TOP,
FLAG_TRANSPARENT = DisplayServer::WINDOW_FLAG_TRANSPARENT,
FLAG_NO_FOCUS = DisplayServer::WINDOW_FLAG_NO_FOCUS,
FLAG_POPUP = DisplayServer::WINDOW_FLAG_POPUP,
FLAG_EXTEND_TO_TITLE = DisplayServer::WINDOW_FLAG_EXTEND_TO_TITLE,
FLAG_MOUSE_PASSTHROUGH = DisplayServer::WINDOW_FLAG_MOUSE_PASSTHROUGH,
FLAG_MAX = DisplayServer::WINDOW_FLAG_MAX,
};
enum ContentScaleMode {
CONTENT_SCALE_MODE_DISABLED,
CONTENT_SCALE_MODE_CANVAS_ITEMS,
CONTENT_SCALE_MODE_VIEWPORT,
};
enum ContentScaleAspect {
CONTENT_SCALE_ASPECT_IGNORE,
CONTENT_SCALE_ASPECT_KEEP,
CONTENT_SCALE_ASPECT_KEEP_WIDTH,
CONTENT_SCALE_ASPECT_KEEP_HEIGHT,
CONTENT_SCALE_ASPECT_EXPAND,
};
enum ContentScaleStretch {
CONTENT_SCALE_STRETCH_FRACTIONAL,
CONTENT_SCALE_STRETCH_INTEGER,
};
enum LayoutDirection {
LAYOUT_DIRECTION_INHERITED,
LAYOUT_DIRECTION_LOCALE,
LAYOUT_DIRECTION_LTR,
LAYOUT_DIRECTION_RTL
};
enum {
DEFAULT_WINDOW_SIZE = 100,
};
// Keep synced with enum hint for `initial_position` property.
enum WindowInitialPosition {
WINDOW_INITIAL_POSITION_ABSOLUTE,
WINDOW_INITIAL_POSITION_CENTER_PRIMARY_SCREEN,
WINDOW_INITIAL_POSITION_CENTER_MAIN_WINDOW_SCREEN,
WINDOW_INITIAL_POSITION_CENTER_OTHER_SCREEN,
WINDOW_INITIAL_POSITION_CENTER_SCREEN_WITH_MOUSE_FOCUS,
WINDOW_INITIAL_POSITION_CENTER_SCREEN_WITH_KEYBOARD_FOCUS,
};
private:
DisplayServer::WindowID window_id = DisplayServer::INVALID_WINDOW_ID;
bool initialized = false;
String title;
String tr_title;
mutable int current_screen = 0;
mutable Vector2i position;
mutable Size2i size = Size2i(DEFAULT_WINDOW_SIZE, DEFAULT_WINDOW_SIZE);
mutable Size2i min_size;
mutable Size2i max_size;
mutable Vector<Vector2> mpath;
mutable Mode mode = MODE_WINDOWED;
mutable bool flags[FLAG_MAX] = {};
bool visible = true;
bool focused = false;
WindowInitialPosition initial_position = WINDOW_INITIAL_POSITION_ABSOLUTE;
bool force_native = false;
bool use_font_oversampling = false;
bool transient = false;
bool transient_to_focused = false;
bool exclusive = false;
bool wrap_controls = false;
bool updating_child_controls = false;
bool updating_embedded_window = false;
bool clamp_to_embedder = false;
bool unparent_when_invisible = false;
bool keep_title_visible = false;
LayoutDirection layout_dir = LAYOUT_DIRECTION_INHERITED;
void _update_child_controls();
void _update_embedded_window();
Size2i content_scale_size;
ContentScaleMode content_scale_mode = CONTENT_SCALE_MODE_DISABLED;
ContentScaleAspect content_scale_aspect = CONTENT_SCALE_ASPECT_IGNORE;
ContentScaleStretch content_scale_stretch = CONTENT_SCALE_STRETCH_FRACTIONAL;
real_t content_scale_factor = 1.0;
void _make_window();
void _clear_window();
void _update_from_window();
bool _try_parent_dialog(Node *p_from_node);
Size2i max_size_used;
Size2i _clamp_limit_size(const Size2i &p_limit_size);
Size2i _clamp_window_size(const Size2i &p_size);
void _validate_limit_size();
void _update_viewport_size();
void _update_window_size();
void _propagate_window_notification(Node *p_node, int p_notification);
void _update_window_callbacks();
Window *transient_parent = nullptr;
Window *exclusive_child = nullptr;
HashSet<Window *> transient_children;
void _clear_transient();
void _make_transient();
void _set_transient_exclusive_child(bool p_clear_invalid = false);
ThemeOwner *theme_owner = nullptr;
Ref<Theme> theme;
StringName theme_type_variation;
bool bulk_theme_override = false;
Theme::ThemeIconMap theme_icon_override;
Theme::ThemeStyleMap theme_style_override;
Theme::ThemeFontMap theme_font_override;
Theme::ThemeFontSizeMap theme_font_size_override;
Theme::ThemeColorMap theme_color_override;
Theme::ThemeConstantMap theme_constant_override;
mutable HashMap<StringName, Theme::ThemeIconMap> theme_icon_cache;
mutable HashMap<StringName, Theme::ThemeStyleMap> theme_style_cache;
mutable HashMap<StringName, Theme::ThemeFontMap> theme_font_cache;
mutable HashMap<StringName, Theme::ThemeFontSizeMap> theme_font_size_cache;
mutable HashMap<StringName, Theme::ThemeColorMap> theme_color_cache;
mutable HashMap<StringName, Theme::ThemeConstantMap> theme_constant_cache;
void _theme_changed();
void _notify_theme_override_changed();
void _invalidate_theme_cache();
struct ThemeCache {
Ref<StyleBox> embedded_border;
Ref<StyleBox> embedded_unfocused_border;
Ref<Font> title_font;
int title_font_size = 0;
Color title_color;
int title_height = 0;
Color title_outline_modulate;
int title_outline_size = 0;
Ref<Texture2D> close;
Ref<Texture2D> close_pressed;
int close_h_offset = 0;
int close_v_offset = 0;
int resize_margin = 0;
} theme_cache;
void _settings_changed();
Viewport *embedder = nullptr;
Transform2D window_transform;
friend class Viewport; //friend back, can call the methods below
void _window_input(const Ref<InputEvent> &p_ev);
void _window_input_text(const String &p_text);
void _window_drop_files(const Vector<String> &p_files);
void _rect_changed_callback(const Rect2i &p_callback);
void _event_callback(DisplayServer::WindowEvent p_event);
virtual bool _can_consume_input_events() const override;
bool mouse_in_window = false;
void _update_mouse_over(Vector2 p_pos) override;
void _mouse_leave_viewport() override;
Ref<Shortcut> debugger_stop_shortcut;
static int root_layout_direction;
protected:
virtual Rect2i _popup_adjust_rect() const { return Rect2i(); }
virtual void _post_popup() {}
virtual void _update_theme_item_cache();
virtual void _input_from_window(const Ref<InputEvent> &p_event) {}
void _notification(int p_what);
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
void _validate_property(PropertyInfo &p_property) const;
virtual void add_child_notify(Node *p_child) override;
virtual void remove_child_notify(Node *p_child) override;
GDVIRTUAL0RC(Vector2, _get_contents_minimum_size)
public:
enum {
NOTIFICATION_VISIBILITY_CHANGED = 30,
NOTIFICATION_POST_POPUP = 31,
NOTIFICATION_THEME_CHANGED = 32
};
static void set_root_layout_direction(int p_root_dir);
void set_title(const String &p_title);
String get_title() const;
void set_initial_position(WindowInitialPosition p_initial_position);
WindowInitialPosition get_initial_position() const;
void set_force_native(bool p_force_native);
bool get_force_native() const;
void set_current_screen(int p_screen);
int get_current_screen() const;
void set_position(const Point2i &p_position);
Point2i get_position() const;
void move_to_center();
void set_size(const Size2i &p_size);
Size2i get_size() const;
void reset_size();
Point2i get_position_with_decorations() const;
Size2i get_size_with_decorations() const;
void set_max_size(const Size2i &p_max_size);
Size2i get_max_size() const;
void set_min_size(const Size2i &p_min_size);
Size2i get_min_size() const;
void set_mode(Mode p_mode);
Mode get_mode() const;
void set_flag(Flags p_flag, bool p_enabled);
bool get_flag(Flags p_flag) const;
bool is_maximize_allowed() const;
void request_attention();
#ifndef DISABLE_DEPRECATED
void move_to_foreground();
#endif // DISABLE_DEPRECATED
virtual void set_visible(bool p_visible);
bool is_visible() const;
void update_mouse_cursor_state() override;
void show();
void hide();
void set_transient(bool p_transient);
bool is_transient() const;
void set_transient_to_focused(bool p_transient_to_focused);
bool is_transient_to_focused() const;
void set_exclusive(bool p_exclusive);
bool is_exclusive() const;
void set_clamp_to_embedder(bool p_enable);
bool is_clamped_to_embedder() const;
void set_unparent_when_invisible(bool p_unparent);
bool is_in_edited_scene_root() const;
bool can_draw() const;
void set_ime_active(bool p_active);
void set_ime_position(const Point2i &p_pos);
bool is_embedded() const;
Viewport *get_embedder() const;
void set_content_scale_size(const Size2i &p_size);
Size2i get_content_scale_size() const;
void set_content_scale_mode(ContentScaleMode p_mode);
ContentScaleMode get_content_scale_mode() const;
void set_content_scale_aspect(ContentScaleAspect p_aspect);
ContentScaleAspect get_content_scale_aspect() const;
void set_content_scale_stretch(ContentScaleStretch p_stretch);
ContentScaleStretch get_content_scale_stretch() const;
void set_keep_title_visible(bool p_title_visible);
bool get_keep_title_visible() const;
void set_content_scale_factor(real_t p_factor);
real_t get_content_scale_factor() const;
void set_use_font_oversampling(bool p_oversampling);
bool is_using_font_oversampling() const;
void set_mouse_passthrough_polygon(const Vector<Vector2> &p_region);
Vector<Vector2> get_mouse_passthrough_polygon() const;
void set_wrap_controls(bool p_enable);
bool is_wrapping_controls() const;
void child_controls_changed();
Window *get_exclusive_child() const { return exclusive_child; };
Window *get_parent_visible_window() const;
Viewport *get_parent_viewport() const;
virtual void popup(const Rect2i &p_screen_rect = Rect2i());
void popup_on_parent(const Rect2i &p_parent_rect);
void popup_centered(const Size2i &p_minsize = Size2i());
void popup_centered_ratio(float p_ratio = 0.8);
void popup_centered_clamped(const Size2i &p_size = Size2i(), float p_fallback_ratio = 0.75);
void popup_exclusive(Node *p_from_node, const Rect2i &p_screen_rect = Rect2i());
void popup_exclusive_on_parent(Node *p_from_node, const Rect2i &p_parent_rect);
void popup_exclusive_centered(Node *p_from_node, const Size2i &p_minsize = Size2i());
void popup_exclusive_centered_ratio(Node *p_from_node, float p_ratio = 0.8);
void popup_exclusive_centered_clamped(Node *p_from_node, const Size2i &p_size = Size2i(), float p_fallback_ratio = 0.75);
Rect2i fit_rect_in_parent(Rect2i p_rect, const Rect2i &p_parent_rect) const;
Size2 get_contents_minimum_size() const;
Size2 get_clamped_minimum_size() const;
void grab_focus();
bool has_focus() const;
Rect2i get_usable_parent_rect() const;
// Internationalization.
void set_layout_direction(LayoutDirection p_direction);
LayoutDirection get_layout_direction() const;
bool is_layout_rtl() const;
#ifndef DISABLE_DEPRECATED
void set_auto_translate(bool p_enable);
bool is_auto_translating() const;
#endif
// Theming.
void set_theme_owner_node(Node *p_node);
Node *get_theme_owner_node() const;
bool has_theme_owner_node() const;
void set_theme_context(ThemeContext *p_context, bool p_propagate = true);
void set_theme(const Ref<Theme> &p_theme);
Ref<Theme> get_theme() const;
void set_theme_type_variation(const StringName &p_theme_type);
StringName get_theme_type_variation() const;
void begin_bulk_theme_override();
void end_bulk_theme_override();
void add_theme_icon_override(const StringName &p_name, const Ref<Texture2D> &p_icon);
void add_theme_style_override(const StringName &p_name, const Ref<StyleBox> &p_style);
void add_theme_font_override(const StringName &p_name, const Ref<Font> &p_font);
void add_theme_font_size_override(const StringName &p_name, int p_font_size);
void add_theme_color_override(const StringName &p_name, const Color &p_color);
void add_theme_constant_override(const StringName &p_name, int p_constant);
void remove_theme_icon_override(const StringName &p_name);
void remove_theme_style_override(const StringName &p_name);
void remove_theme_font_override(const StringName &p_name);
void remove_theme_font_size_override(const StringName &p_name);
void remove_theme_color_override(const StringName &p_name);
void remove_theme_constant_override(const StringName &p_name);
Ref<Texture2D> get_theme_icon(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
Ref<StyleBox> get_theme_stylebox(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
Ref<Font> get_theme_font(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
int get_theme_font_size(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
Color get_theme_color(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
int get_theme_constant(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
Variant get_theme_item(Theme::DataType p_data_type, const StringName &p_name, const StringName &p_theme_type = StringName()) const;
#ifdef TOOLS_ENABLED
Ref<Texture2D> get_editor_theme_icon(const StringName &p_name) const;
#endif
bool has_theme_icon_override(const StringName &p_name) const;
bool has_theme_stylebox_override(const StringName &p_name) const;
bool has_theme_font_override(const StringName &p_name) const;
bool has_theme_font_size_override(const StringName &p_name) const;
bool has_theme_color_override(const StringName &p_name) const;
bool has_theme_constant_override(const StringName &p_name) const;
bool has_theme_icon(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
bool has_theme_stylebox(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
bool has_theme_font(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
bool has_theme_font_size(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
bool has_theme_color(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
bool has_theme_constant(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
float get_theme_default_base_scale() const;
Ref<Font> get_theme_default_font() const;
int get_theme_default_font_size() const;
//
virtual Transform2D get_final_transform() const override;
virtual Transform2D get_screen_transform_internal(bool p_absolute_position = false) const override;
virtual Transform2D get_popup_base_transform() const override;
virtual Viewport *get_section_root_viewport() const override;
virtual bool is_attached_in_viewport() const override;
Rect2i get_parent_rect() const;
virtual DisplayServer::WindowID get_window_id() const override;
virtual Size2 _get_contents_minimum_size() const;
Window();
~Window();
};
VARIANT_ENUM_CAST(Window::Mode);
VARIANT_ENUM_CAST(Window::Flags);
VARIANT_ENUM_CAST(Window::ContentScaleMode);
VARIANT_ENUM_CAST(Window::ContentScaleAspect);
VARIANT_ENUM_CAST(Window::ContentScaleStretch);
VARIANT_ENUM_CAST(Window::LayoutDirection);
VARIANT_ENUM_CAST(Window::WindowInitialPosition);
#endif // WINDOW_H
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