mirror of
https://github.com/minetest/minetest.git
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129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include "irrlichttypes_extrabloated.h"
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#include "irr_ptr.h"
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#include "util/string.h"
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#ifdef __ANDROID__
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#include <porting_android.h>
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#endif
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enum class PointerType {
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Mouse,
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Touch,
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};
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struct PointerAction {
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v2s32 pos;
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u64 time; // ms
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static PointerAction fromEvent(const SEvent &event);
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bool isRelated(PointerAction other);
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};
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class GUIModalMenu;
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class IMenuManager
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{
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public:
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// A GUIModalMenu calls these when this class is passed as a parameter
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virtual void createdMenu(gui::IGUIElement *menu) = 0;
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virtual void deletingMenu(gui::IGUIElement *menu) = 0;
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};
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// Remember to drop() the menu after creating, so that it can
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// remove itself when it wants to.
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class GUIModalMenu : public gui::IGUIElement
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{
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public:
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GUIModalMenu(gui::IGUIEnvironment* env, gui::IGUIElement* parent, s32 id,
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IMenuManager *menumgr, bool remap_dbl_click = true);
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virtual ~GUIModalMenu();
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void allowFocusRemoval(bool allow);
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bool canTakeFocus(gui::IGUIElement *e);
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void draw();
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void quitMenu();
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virtual void regenerateGui(v2u32 screensize) = 0;
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virtual void drawMenu() = 0;
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virtual bool preprocessEvent(const SEvent &event);
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virtual bool OnEvent(const SEvent &event) { return false; };
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virtual bool pausesGame() { return false; } // Used for pause menu
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#ifdef __ANDROID__
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virtual void getAndroidUIInput() {};
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porting::AndroidDialogState getAndroidUIInputState();
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#endif
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PointerType getPointerType() { return m_pointer_type; };
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protected:
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virtual std::wstring getLabelByID(s32 id) = 0;
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virtual std::string getNameByID(s32 id) = 0;
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// Stores the last known pointer type.
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PointerType m_pointer_type = PointerType::Mouse;
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// Stores the last known pointer position.
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// If the last input event was a mouse event, it's the cursor position.
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// If the last input event was a touch event, it's the finger position.
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v2s32 m_pointer;
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v2s32 m_old_pointer; // Mouse position after previous mouse event
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v2u32 m_screensize_old;
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float m_gui_scale;
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#ifdef __ANDROID__
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std::string m_jni_field_name;
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#endif
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// This is set to true if the menu is currently processing a second-touch event.
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bool m_second_touch = false;
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// This is set to true if the menu is currently processing a mouse event
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// that was synthesized by the menu itself from a touch event.
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bool m_simulated_mouse = false;
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private:
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IMenuManager *m_menumgr;
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/* If true, remap a click outside the formspec to ESC. This is so that, for
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* example, touchscreen users can close formspecs.
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* The default for this setting is true. Currently, it's set to false for
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* the mainmenu to prevent Minetest from closing unexpectedly.
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*/
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bool m_remap_click_outside;
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bool remapClickOutside(const SEvent &event);
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PointerAction m_last_click_outside{};
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// This might be necessary to expose to the implementation if it
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// wants to launch other menus
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bool m_allow_focus_removal = false;
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// Stuff related to touchscreen input
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irr_ptr<gui::IGUIElement> m_touch_hovered;
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// Converts touches into clicks.
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bool simulateMouseEvent(ETOUCH_INPUT_EVENT touch_event, bool second_try=false);
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void enter(gui::IGUIElement *element);
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void leave();
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// Used to detect double-taps and convert them into double-click events.
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PointerAction m_last_touch{};
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};
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