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822 lines
18 KiB
C++
822 lines
18 KiB
C++
/*************************************************************************/
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/* line_edit.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "line_edit.h"
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#include "os/keyboard.h"
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#include "os/os.h"
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#include "print_string.h"
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#include "label.h"
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void LineEdit::_input_event(InputEvent p_event) {
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switch(p_event.type) {
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case InputEvent::MOUSE_BUTTON: {
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const InputEventMouseButton &b = p_event.mouse_button;
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if (b.button_index!=1)
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break;
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if (b.pressed) {
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set_cursor_at_pixel_pos(b.x);
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if (b.doubleclick) {
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selection.enabled=true;
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selection.begin=0;
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selection.end=text.length();
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selection.doubleclick=true;
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}
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selection.drag_attempt=false;
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if ((cursor_pos<selection.begin) || (cursor_pos>selection.end) || !selection.enabled) {
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selection_clear();
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selection.cursor_start=cursor_pos;
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selection.creating=true;
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} else if (selection.enabled) {
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selection.drag_attempt=true;
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}
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// if (!editable)
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// non_editable_clicked_signal.call();
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update();
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} else {
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if ( (!selection.creating) && (!selection.doubleclick)) {
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selection_clear();
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}
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selection.creating=false;
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selection.doubleclick=false;
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}
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update();
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} break;
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case InputEvent::MOUSE_MOTION: {
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const InputEventMouseMotion& m=p_event.mouse_motion;
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if (m.button_mask&1) {
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if (selection.creating) {
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set_cursor_at_pixel_pos(m.x);
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selection_fill_at_cursor();
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}
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}
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} break;
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case InputEvent::KEY: {
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const InputEventKey &k =p_event.key;
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if (!k.pressed)
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return;
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unsigned int code = k.scancode;
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if (k.mod.command) {
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bool handled=true;
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switch (code) {
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case (KEY_X): { // CUT
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if(k.mod.command && editable) {
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cut_text();
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}
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} break;
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case (KEY_C): { // COPY
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if(k.mod.command) {
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copy_text();
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}
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} break;
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case (KEY_V): { // PASTE
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if(k.mod.command && editable) {
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paste_text();
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}
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} break;
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case (KEY_Z): { // Simple One level undo
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if( k.mod.command && editable) {
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int old_cursor_pos = cursor_pos;
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text = undo_text;
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if(old_cursor_pos > text.length()) {
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set_cursor_pos(text.length());
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} else {
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set_cursor_pos(old_cursor_pos);
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}
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}
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emit_signal("text_changed",text);
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_change_notify("text");
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} break;
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case (KEY_U): { // Delete from start to cursor
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if( k.mod.command && editable) {
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selection_clear();
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undo_text = text;
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text = text.substr(cursor_pos,text.length()-cursor_pos);
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set_cursor_pos(0);
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emit_signal("text_changed",text);
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_change_notify("text");
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}
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} break;
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case (KEY_Y): { // PASTE (Yank for unix users)
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if(k.mod.command && editable) {
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paste_text();
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}
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} break;
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case (KEY_K): { // Delete from cursor_pos to end
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if(k.mod.command && editable) {
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selection_clear();
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undo_text = text;
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text = text.substr(0,cursor_pos);
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emit_signal("text_changed",text);
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_change_notify("text");
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}
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} break;
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default: { handled=false;}
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}
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if (handled) {
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accept_event();
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return;
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}
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}
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if (!k.mod.alt && !k.mod.meta && !k.mod.command) {
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bool handled=true;
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switch (code) {
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case KEY_ENTER:
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case KEY_RETURN: {
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emit_signal( "text_entered",text );
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return;
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} break;
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case KEY_BACKSPACE: {
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if (editable) {
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undo_text = text;
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if (selection.enabled)
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selection_delete();
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else
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delete_char();
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}
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} break;
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case KEY_LEFT: {
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shift_selection_check_pre(k.mod.shift);
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set_cursor_pos(get_cursor_pos()-1);
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shift_selection_check_post(k.mod.shift);
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} break;
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case KEY_RIGHT: {
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shift_selection_check_pre(k.mod.shift);
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set_cursor_pos(get_cursor_pos()+1);
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shift_selection_check_post(k.mod.shift);
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} break;
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case KEY_DELETE: {
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if (editable) {
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undo_text = text;
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if (selection.enabled)
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selection_delete();
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else if (cursor_pos<text.length()) {
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set_cursor_pos(get_cursor_pos()+1);
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delete_char();
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}
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}
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} break;
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case KEY_HOME: {
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shift_selection_check_pre(k.mod.shift);
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set_cursor_pos(0);
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shift_selection_check_post(k.mod.shift);
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} break;
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case KEY_END: {
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shift_selection_check_pre(k.mod.shift);
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set_cursor_pos(text.length());
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shift_selection_check_post(k.mod.shift);
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} break;
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default: {
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if (k.unicode>=32 && k.scancode!=KEY_DELETE) {
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if (editable) {
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selection_delete();
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CharType ucodestr[2]={k.unicode,0};
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append_at_cursor(ucodestr);
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emit_signal("text_changed",text);
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_change_notify("text");
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}
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} else {
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handled=false;
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}
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} break;
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}
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if (handled)
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accept_event();
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else
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return;
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selection.old_shift=k.mod.shift;
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update();
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}
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return;
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} break;
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}
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}
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Variant LineEdit::get_drag_data(const Point2& p_point) {
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if (selection.drag_attempt && selection.enabled) {
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String t = text.substr(selection.begin, selection.end - selection.begin);
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Label *l = memnew( Label );
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l->set_text(t);
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set_drag_preview(l);
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return t;
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}
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return Variant();
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}
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bool LineEdit::can_drop_data(const Point2& p_point,const Variant& p_data) const{
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return p_data.get_type()==Variant::STRING;
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}
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void LineEdit::drop_data(const Point2& p_point,const Variant& p_data){
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if (p_data.get_type()==Variant::STRING) {
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set_cursor_at_pixel_pos(p_point.x);
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append_at_cursor(p_data);
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}
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}
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void LineEdit::_notification(int p_what) {
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switch(p_what) {
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case NOTIFICATION_RESIZED: {
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set_cursor_pos( get_cursor_pos() );
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} break;
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case NOTIFICATION_DRAW: {
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int width,height;
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Size2 size=get_size();
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width=size.width;
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height=size.height;
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RID ci = get_canvas_item();
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Ref<StyleBox> style = get_stylebox("normal");
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if (!is_editable())
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style=get_stylebox("read_only");
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Ref<Font> font=get_font("font");
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style->draw( ci, Rect2( Point2(), size ) );
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if (has_focus()) {
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get_stylebox("focus")->draw( ci, Rect2( Point2(), size ) );
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}
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int ofs=style->get_offset().x;
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int ofs_max=width-style->get_minimum_size().width;
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int char_ofs=window_pos;
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int y_area=height-style->get_minimum_size().height;
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int y_ofs=style->get_offset().y;
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int font_ascent=font->get_ascent();
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Color selection_color=get_color("selection_color");
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Color font_color=get_color("font_color");
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Color font_color_selected=get_color("font_color_selected");
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Color cursor_color=get_color("cursor_color");
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while(true) {
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//end of string, break!
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if (char_ofs>=text.length())
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break;
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CharType cchar=pass?'*':text[char_ofs];
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CharType next=pass?'*':text[char_ofs+1];
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int char_width=font->get_char_size( cchar,next ).width;
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// end of widget, break!
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if ( (ofs+char_width) > ofs_max )
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break;
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bool selected=selection.enabled && char_ofs>=selection.begin && char_ofs<selection.end;
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if (selected)
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VisualServer::get_singleton()->canvas_item_add_rect(ci,Rect2( Point2( ofs , y_ofs ),Size2( char_width, y_area )),selection_color);
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font->draw_char(ci,Point2( ofs , y_ofs+font_ascent ), cchar, next,selected?font_color_selected:font_color );
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if (char_ofs==cursor_pos && has_focus())
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VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(
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Point2( ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color );
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ofs+=char_width;
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char_ofs++;
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}
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if (char_ofs==cursor_pos && has_focus()) //may be at the end
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VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(
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Point2( ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color );
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} break;
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case NOTIFICATION_FOCUS_ENTER: {
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if (OS::get_singleton()->has_virtual_keyboard())
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OS::get_singleton()->show_virtual_keyboard(get_text(),get_global_rect());
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} break;
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case NOTIFICATION_FOCUS_EXIT: {
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if (OS::get_singleton()->has_virtual_keyboard())
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OS::get_singleton()->hide_virtual_keyboard();
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} break;
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}
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}
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void LineEdit::copy_text() {
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if(selection.enabled) {
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OS::get_singleton()->set_clipboard(text.substr(selection.begin, selection.end - selection.begin));
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}
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}
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void LineEdit::cut_text() {
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if(selection.enabled) {
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undo_text = text;
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OS::get_singleton()->set_clipboard(text.substr(selection.begin, selection.end - selection.begin));
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selection_delete();
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}
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}
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void LineEdit::paste_text() {
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String paste_buffer = OS::get_singleton()->get_clipboard();
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if(paste_buffer != "") {
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if(selection.enabled) selection_delete();
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append_at_cursor(paste_buffer);
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emit_signal("text_changed",text);
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_change_notify("text");
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}
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}
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void LineEdit::shift_selection_check_pre(bool p_shift) {
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if (!selection.old_shift && p_shift) {
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selection.cursor_start=cursor_pos;
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}
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if (!p_shift)
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selection_clear();
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}
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void LineEdit::shift_selection_check_post(bool p_shift) {
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if (p_shift)
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selection_fill_at_cursor();
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}
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void LineEdit::set_cursor_at_pixel_pos(int p_x) {
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int ofs=window_pos;
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int pixel_ofs=get_stylebox("normal")->get_offset().x;
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Ref<Font> font=get_font("font");
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while (ofs<text.length()) {
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int char_w=font->get_char_size( text[ofs] ).width;
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pixel_ofs+=char_w;
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if (pixel_ofs > p_x) { //found what we look for
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if ( (pixel_ofs-p_x) < (char_w >> 1 ) ) {
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ofs+=1;
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}
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break;
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}
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ofs++;
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}
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set_cursor_pos( ofs );
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/*
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int new_cursor_pos=p_x;
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int charwidth=draw_area->get_font_char_width(' ',0);
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new_cursor_pos=( ( (new_cursor_pos-2)+ (charwidth/2) ) /charwidth );
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if (new_cursor_pos>(int)text.length()) new_cursor_pos=text.length();
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set_cursor_pos(window_pos+new_cursor_pos); */
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}
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void LineEdit::delete_char() {
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if ((text.length()<=0) || (cursor_pos==0)) return;
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text.erase( cursor_pos-1, 1 );
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set_cursor_pos(get_cursor_pos()-1);
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if (cursor_pos==window_pos) {
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// set_window_pos(cursor_pos-get_window_length());
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}
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emit_signal("text_changed",text);
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_change_notify("text");
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}
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void LineEdit::set_text(String p_text) {
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clear_internal();
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append_at_cursor(p_text);
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update();
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cursor_pos=0;
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window_pos=0;
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}
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void LineEdit::clear() {
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clear_internal();
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}
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String LineEdit::get_text() const {
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return text;
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}
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void LineEdit::set_cursor_pos(int p_pos) {
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if (p_pos>(int)text.length())
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p_pos=text.length();
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if(p_pos<0)
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p_pos=0;
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cursor_pos=p_pos;
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// if (cursor_pos>(window_pos+get_window_length())) {
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// set_window_pos(cursor_pos-get_window_lengt//h());
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// }
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if (!is_inside_scene()) {
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window_pos=cursor_pos;
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return;
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}
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Ref<StyleBox> style = get_stylebox("normal");
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Ref<Font> font=get_font("font");
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if (cursor_pos<window_pos) {
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/* Adjust window if cursor goes too much to the left */
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set_window_pos(cursor_pos);
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} else if (cursor_pos>window_pos) {
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/* Adjust window if cursor goes too much to the right */
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int window_width=get_size().width-style->get_minimum_size().width;
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if (window_width<0)
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return;
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int width_to_cursor=0;
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int wp=window_pos;
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for (int i=window_pos;i<cursor_pos;i++)
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width_to_cursor+=font->get_char_size( text[i] ).width;
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while(width_to_cursor>=window_width && wp<text.length()) {
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width_to_cursor-=font->get_char_size( text[ wp ] ).width;
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wp++;
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}
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if (wp!=window_pos)
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set_window_pos( wp );
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}
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update();
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}
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int LineEdit::get_cursor_pos() const {
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return cursor_pos;
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}
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void LineEdit::set_window_pos(int p_pos) {
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window_pos=p_pos;
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if (window_pos<0) window_pos=0;
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}
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void LineEdit::append_at_cursor(String p_text) {
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if ( ( max_length <= 0 ) || (text.length()+p_text.length() <= max_length)) {
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undo_text = text;
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String pre = text.substr( 0, cursor_pos );
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String post = text.substr( cursor_pos, text.length()-cursor_pos );
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text=pre+p_text+post;
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set_cursor_pos(cursor_pos+p_text.length());
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}
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}
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void LineEdit::clear_internal() {
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cursor_pos=0;
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window_pos=0;
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undo_text="";
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text="";
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update();
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}
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Size2 LineEdit::get_minimum_size() const {
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Ref<StyleBox> style = get_stylebox("normal");
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Ref<Font> font=get_font("font");
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Size2 min=style->get_minimum_size();
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min.height+=font->get_height();
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min.width+=get_constant("minimum_spaces")*font->get_char_size(' ').x;
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return min;
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}
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/* selection */
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void LineEdit::selection_clear() {
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selection.begin=0;
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selection.end=0;
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selection.cursor_start=0;
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selection.enabled=false;
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selection.creating=false;
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|
selection.old_shift=false;
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selection.doubleclick=false;
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|
update();
|
|
}
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|
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|
|
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void LineEdit::selection_delete() {
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|
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|
if (selection.enabled) {
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|
|
|
undo_text = text;
|
|
text.erase(selection.begin,selection.end-selection.begin);
|
|
|
|
if (cursor_pos>=text.length()) {
|
|
|
|
cursor_pos=text.length();
|
|
}
|
|
if (window_pos>cursor_pos) {
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|
|
|
window_pos=cursor_pos;
|
|
}
|
|
|
|
emit_signal("text_changed",text);
|
|
_change_notify("text");
|
|
};
|
|
|
|
selection_clear();
|
|
}
|
|
|
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void LineEdit::set_max_length(int p_max_length) {
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|
|
|
ERR_FAIL_COND(p_max_length<0);
|
|
max_length = p_max_length;
|
|
set_text(text);
|
|
}
|
|
|
|
int LineEdit::get_max_length() const {
|
|
|
|
return max_length;
|
|
}
|
|
|
|
void LineEdit::selection_fill_at_cursor() {
|
|
|
|
int aux;
|
|
|
|
selection.begin=cursor_pos;
|
|
selection.end=selection.cursor_start;
|
|
|
|
if (selection.end<selection.begin) {
|
|
aux=selection.end;
|
|
selection.end=selection.begin;
|
|
selection.begin=aux;
|
|
}
|
|
|
|
selection.enabled=(selection.begin!=selection.end);
|
|
}
|
|
|
|
void LineEdit::select_all() {
|
|
|
|
if (!text.length())
|
|
return;
|
|
|
|
selection.begin=0;
|
|
selection.end=text.length();
|
|
selection.enabled=true;
|
|
update();
|
|
|
|
}
|
|
void LineEdit::set_editable(bool p_editable) {
|
|
|
|
editable=p_editable;
|
|
update();
|
|
}
|
|
|
|
bool LineEdit::is_editable() const {
|
|
|
|
return editable;
|
|
}
|
|
|
|
void LineEdit::set_secret(bool p_secret) {
|
|
|
|
pass=p_secret;
|
|
update();
|
|
}
|
|
bool LineEdit::is_secret() const {
|
|
|
|
return pass;
|
|
}
|
|
|
|
void LineEdit::select(int p_from, int p_to) {
|
|
|
|
int len = text.length();
|
|
if (p_from<0)
|
|
p_from=0;
|
|
if (p_from>len)
|
|
p_from=len;
|
|
if (p_to<0 || p_to>len)
|
|
p_to=len;
|
|
|
|
if (p_from>=p_to)
|
|
return;
|
|
|
|
selection.enabled=true;
|
|
selection.begin=p_from;
|
|
selection.end=p_to;
|
|
selection.creating=false;
|
|
selection.old_shift=false;
|
|
selection.doubleclick=false;
|
|
update();
|
|
}
|
|
|
|
|
|
void LineEdit::_bind_methods() {
|
|
|
|
|
|
ObjectTypeDB::bind_method(_MD("_input_event"),&LineEdit::_input_event);
|
|
ObjectTypeDB::bind_method(_MD("clear"),&LineEdit::clear);
|
|
ObjectTypeDB::bind_method(_MD("select_all"),&LineEdit::select_all);
|
|
ObjectTypeDB::bind_method(_MD("set_text","text"),&LineEdit::set_text);
|
|
ObjectTypeDB::bind_method(_MD("get_text"),&LineEdit::get_text);
|
|
ObjectTypeDB::bind_method(_MD("set_cursor_pos","pos"),&LineEdit::set_cursor_pos);
|
|
ObjectTypeDB::bind_method(_MD("get_cursor_pos"),&LineEdit::get_cursor_pos);
|
|
ObjectTypeDB::bind_method(_MD("set_max_length","chars"),&LineEdit::set_max_length);
|
|
ObjectTypeDB::bind_method(_MD("get_max_length"),&LineEdit::get_max_length);
|
|
ObjectTypeDB::bind_method(_MD("append_at_cursor","text"),&LineEdit::append_at_cursor);
|
|
ObjectTypeDB::bind_method(_MD("set_editable","enabled"),&LineEdit::set_editable);
|
|
ObjectTypeDB::bind_method(_MD("is_editable"),&LineEdit::is_editable);
|
|
ObjectTypeDB::bind_method(_MD("set_secret","enabled"),&LineEdit::set_secret);
|
|
ObjectTypeDB::bind_method(_MD("is_secret"),&LineEdit::is_secret);
|
|
ObjectTypeDB::bind_method(_MD("select","from","to"),&LineEdit::is_secret,DEFVAL(0),DEFVAL(-1));
|
|
|
|
ADD_SIGNAL( MethodInfo("text_changed", PropertyInfo( Variant::STRING, "text" )) );
|
|
ADD_SIGNAL( MethodInfo("text_entered", PropertyInfo( Variant::STRING, "text" )) );
|
|
|
|
ADD_PROPERTY( PropertyInfo( Variant::STRING, "text" ), _SCS("set_text"),_SCS("get_text") );
|
|
ADD_PROPERTY( PropertyInfo( Variant::INT, "max_length" ), _SCS("set_max_length"),_SCS("get_max_length") );
|
|
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "editable" ), _SCS("set_editable"),_SCS("is_editable") );
|
|
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "secret" ), _SCS("set_secret"),_SCS("is_secret") );
|
|
|
|
}
|
|
|
|
LineEdit::LineEdit() {
|
|
|
|
cursor_pos=0;
|
|
window_pos=0;
|
|
max_length = 0;
|
|
pass=false;
|
|
|
|
selection_clear();
|
|
set_focus_mode( FOCUS_ALL );
|
|
editable=true;
|
|
set_default_cursor_shape(CURSOR_IBEAM);
|
|
set_stop_mouse(true);
|
|
|
|
|
|
}
|
|
|
|
LineEdit::~LineEdit() {
|
|
|
|
|
|
}
|
|
|