mirror of
https://github.com/eried/portapack-mayhem.git
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124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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*
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* This file is part of PortaPack.
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*
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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 General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __UI_TEXTENTRY_H__
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#define __UI_TEXTENTRY_H__
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#include "ui.hpp"
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#include "ui_navigation.hpp"
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namespace ui {
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// A TextField is bound to a string reference and allows the string
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// to be manipulated. The field itself does not provide the UI for
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// setting the value. It provides the UI of rendering the text,
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// a cursor, and an API to edit the string content.
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class TextField : public Widget {
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public:
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TextField(std::string& str, Point position, uint32_t length = 30)
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: TextField{str, 64, position, length} { }
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// Str: the string containing the content to edit.
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// Max_length: max length the string is allowed to use.
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// Position: the top-left corner of the control.
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// Length: the number of characters to display.
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// - Characters are 8 pixels wide.
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// - The screen can show 30 characters max.
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// - The control is 16 pixels tall.
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TextField(std::string& str, size_t max_length, Point position, uint32_t length = 30);
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TextField(const TextField&) = delete;
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TextField(TextField&&) = delete;
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TextField& operator=(const TextField&) = delete;
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TextField& operator=(TextField&&) = delete;
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const std::string& value() const;
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void set_cursor(uint32_t pos);
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void set_insert_mode();
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void set_overwrite_mode();
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void char_add(char c);
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void char_delete();
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void paint(Painter& painter) override;
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bool on_key(const KeyEvent key) override;
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bool on_encoder(const EncoderEvent delta) override;
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bool on_touch(const TouchEvent event) override;
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protected:
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std::string& text_;
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size_t max_length_;
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uint32_t char_count_;
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uint32_t cursor_pos_;
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bool insert_mode_;
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};
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class TextEntryView : public View {
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public:
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std::function<void(std::string&)> on_changed { };
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void focus() override;
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std::string title() const override { return "Text entry"; };
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void set_cursor(uint32_t pos);
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protected:
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TextEntryView(NavigationView& nav, std::string& str, size_t max_length);
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TextEntryView(const TextEntryView&) = delete;
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TextEntryView(TextEntryView&&) = delete;
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TextEntryView& operator=(const TextEntryView&) = delete;
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TextEntryView& operator=(TextEntryView&&) = delete;
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void char_add(const char c);
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void char_delete();
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TextField text_input;
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Button button_ok {
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{ 10 * 8, 33 * 8, 9 * 8, 32 },
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"OK"
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};
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};
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// Show the TextEntry view to receive keyboard input.
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// NB: This function returns immediately. 'str' is taken
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// by reference and its lifetime must be ensured by the
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// caller until the TextEntry view is dismissed.
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void text_prompt(
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NavigationView& nav,
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std::string& str,
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size_t max_length,
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std::function<void(std::string&)> on_done = nullptr);
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void text_prompt(
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NavigationView& nav,
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std::string& str,
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uint32_t cursor_pos,
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size_t max_length,
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std::function<void(std::string&)> on_done = nullptr);
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} /* namespace ui */
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#endif/*__UI_TEXTENTRY_H__*/
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