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virtualx-engine/scene/gui/line_edit.cpp
Ignacio Etcheverry 71ee8eeb3f LineEdit: Fix rtl scrolling with mouse drag selection
2016-07-15 22:57:46 +02:00

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/*************************************************************************/
/* line_edit.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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 "line_edit.h"
#include "os/keyboard.h"
#include "os/os.h"
#include "print_string.h"
#include "label.h"
#include "translation.h"
#ifdef TOOLS_ENABLED
#include "tools/editor/editor_settings.h"
#endif
static bool _is_text_char(CharType c) {
return (c>='a' && c<='z') || (c>='A' && c<='Z') || (c>='0' && c<='9') || c=='_';
}
void LineEdit::_input_event(InputEvent p_event) {
switch(p_event.type) {
case InputEvent::MOUSE_BUTTON: {
const InputEventMouseButton &b = p_event.mouse_button;
if (b.pressed && b.button_index==BUTTON_RIGHT) {
menu->set_pos(get_global_transform().xform(get_local_mouse_pos()));
menu->set_size(Vector2(1,1));
menu->popup();
grab_focus();
return;
}
if (b.button_index!=BUTTON_LEFT)
break;
_reset_caret_blink_timer();
if (b.pressed) {
shift_selection_check_pre(b.mod.shift);
set_cursor_at_pixel_pos(b.x);
if (b.mod.shift) {
selection_fill_at_cursor();
selection.creating=true;
} else {
if (b.doubleclick) {
selection.enabled=true;
selection.begin=0;
selection.end=text.length();
selection.doubleclick=true;
}
selection.drag_attempt=false;
if ((cursor_pos<selection.begin) || (cursor_pos>selection.end) || !selection.enabled) {
selection_clear();
selection.cursor_start=cursor_pos;
selection.creating=true;
} else if (selection.enabled) {
selection.drag_attempt=true;
}
}
// if (!editable)
// non_editable_clicked_signal.call();
update();
} else {
if ( (!selection.creating) && (!selection.doubleclick)) {
selection_clear();
}
selection.creating=false;
selection.doubleclick=false;
if (OS::get_singleton()->has_virtual_keyboard())
OS::get_singleton()->show_virtual_keyboard(text,get_global_rect());
}
update();
} break;
case InputEvent::MOUSE_MOTION: {
const InputEventMouseMotion& m=p_event.mouse_motion;
if (m.button_mask&BUTTON_LEFT) {
if (selection.creating) {
set_cursor_at_pixel_pos(m.x);
selection_fill_at_cursor();
}
}
} break;
case InputEvent::KEY: {
const InputEventKey &k =p_event.key;
if (!k.pressed)
return;
unsigned int code = k.scancode;
if (k.mod.command) {
bool handled=true;
switch (code) {
case (KEY_X): { // CUT
if(editable) {
cut_text();
}
} break;
case (KEY_C): { // COPY
copy_text();
} break;
case (KEY_V): { // PASTE
if(editable) {
paste_text();
}
} break;
case (KEY_Z): { // Simple One level undo
if(editable) {
undo();
}
} break;
case (KEY_U): { // Delete from start to cursor
if(editable) {
selection_clear();
undo_text = text;
text = text.substr(cursor_pos,text.length()-cursor_pos);
Ref<Font> font = get_font("font");
cached_width = 0;
if (font != NULL) {
for (int i = 0; i < text.length(); i++)
cached_width += font->get_char_size(text[i]).width;
}
set_cursor_pos(0);
emit_signal("text_changed",text);
_change_notify("text");
}
} break;
case (KEY_Y): { // PASTE (Yank for unix users)
if(editable) {
paste_text();
}
} break;
case (KEY_K): { // Delete from cursor_pos to end
if(editable) {
selection_clear();
undo_text = text;
text = text.substr(0,cursor_pos);
emit_signal("text_changed",text);
_change_notify("text");
}
} break;
case (KEY_A): { //Select All
select();
} break;
default: { handled=false;}
}
if (handled) {
accept_event();
return;
}
}
_reset_caret_blink_timer();
if (!k.mod.meta) {
bool handled=true;
switch (code) {
case KEY_ENTER:
case KEY_RETURN: {
emit_signal( "text_entered",text );
if (OS::get_singleton()->has_virtual_keyboard())
OS::get_singleton()->hide_virtual_keyboard();
return;
} break;
case KEY_BACKSPACE: {
if (!editable)
break;
if (selection.enabled) {
undo_text=text;
selection_delete();
break;
}
#ifdef APPLE_STYLE_KEYS
if (k.mod.alt) {
#else
if (k.mod.alt) {
handled=false;
break;
} else if (k.mod.command) {
#endif
int cc=cursor_pos;
bool prev_char=false;
while (cc>0) {
bool ischar=_is_text_char(text[cc-1]);
if (prev_char && !ischar)
break;
prev_char=ischar;
cc--;
}
delete_text(cc, cursor_pos);
set_cursor_pos(cc);
} else {
undo_text=text;
delete_char();
}
} break;
case KEY_KP_4: {
if (k.unicode != 0) {
handled = false;
break;
}
// numlock disabled. fallthrough to key_left
}
case KEY_LEFT: {
#ifndef APPLE_STYLE_KEYS
if (!k.mod.alt)
#endif
shift_selection_check_pre(k.mod.shift);
#ifdef APPLE_STYLE_KEYS
if (k.mod.command) {
set_cursor_pos(0);
} else if (k.mod.alt) {
#else
if (k.mod.alt) {
handled=false;
break;
} else if (k.mod.command) {
#endif
bool prev_char=false;
int cc=cursor_pos;
while (cc>0) {
bool ischar=_is_text_char(text[cc-1]);
if (prev_char && !ischar)
break;
prev_char=ischar;
cc--;
}
set_cursor_pos(cc);
} else {
set_cursor_pos(get_cursor_pos()-1);
}
shift_selection_check_post(k.mod.shift);
} break;
case KEY_KP_6: {
if (k.unicode != 0) {
handled = false;
break;
}
// numlock disabled. fallthrough to key_right
}
case KEY_RIGHT: {
shift_selection_check_pre(k.mod.shift);
#ifdef APPLE_STYLE_KEYS
if (k.mod.command) {
set_cursor_pos(text.length());
} else if (k.mod.alt) {
#else
if (k.mod.alt) {
handled=false;
break;
} else if (k.mod.command) {
#endif
bool prev_char=false;
int cc=cursor_pos;
while (cc<text.length()) {
bool ischar=_is_text_char(text[cc]);
if (prev_char && !ischar)
break;
prev_char=ischar;
cc++;
}
set_cursor_pos(cc);
} else {
set_cursor_pos(get_cursor_pos()+1);
}
shift_selection_check_post(k.mod.shift);
} break;
case KEY_DELETE: {
if (!editable)
break;
if (k.mod.shift && !k.mod.command && !k.mod.alt) {
cut_text();
break;
}
if (selection.enabled) {
undo_text=text;
selection_delete();
break;
}
int text_len = text.length();
if (cursor_pos==text_len)
break; // nothing to do
#ifdef APPLE_STYLE_KEYS
if (k.mod.alt) {
#else
if (k.mod.alt) {
handled=false;
break;
} else if (k.mod.command) {
#endif
int cc=cursor_pos;
bool prev_char=false;
while (cc<text.length()) {
bool ischar=_is_text_char(text[cc]);
if (prev_char && !ischar)
break;
prev_char=ischar;
cc++;
}
delete_text(cursor_pos,cc);
} else {
undo_text=text;
set_cursor_pos(cursor_pos+1);
delete_char();
}
} break;
case KEY_KP_7: {
if (k.unicode != 0) {
handled = false;
break;
}
// numlock disabled. fallthrough to key_home
}
case KEY_HOME: {
shift_selection_check_pre(k.mod.shift);
set_cursor_pos(0);
shift_selection_check_post(k.mod.shift);
} break;
case KEY_KP_1: {
if (k.unicode != 0) {
handled = false;
break;
}
// numlock disabled. fallthrough to key_end
}
case KEY_END: {
shift_selection_check_pre(k.mod.shift);
set_cursor_pos(text.length());
shift_selection_check_post(k.mod.shift);
} break;
default: {
handled=false;
} break;
}
if (handled) {
accept_event();
} else {
if (k.unicode>=32 && k.scancode!=KEY_DELETE) {
if (editable) {
selection_delete();
CharType ucodestr[2]={(CharType)k.unicode,0};
append_at_cursor(ucodestr);
emit_signal("text_changed",text);
_change_notify("text");
accept_event();
}
} else {
return;
}
}
update();
}
return;
} break;
}
}
void LineEdit::set_align(Align p_align) {
ERR_FAIL_INDEX(p_align, 4);
align = p_align;
update();
}
LineEdit::Align LineEdit::get_align() const{
return align;
}
Variant LineEdit::get_drag_data(const Point2& p_point) {
if (selection.drag_attempt && selection.enabled) {
String t = text.substr(selection.begin, selection.end - selection.begin);
Label *l = memnew( Label );
l->set_text(t);
set_drag_preview(l);
return t;
}
return Variant();
}
bool LineEdit::can_drop_data(const Point2& p_point,const Variant& p_data) const{
return p_data.get_type()==Variant::STRING;
}
void LineEdit::drop_data(const Point2& p_point,const Variant& p_data){
if (p_data.get_type()==Variant::STRING) {
set_cursor_at_pixel_pos(p_point.x);
int selected = selection.end - selection.begin;
Ref<Font> font = get_font("font");
if (font != NULL) {
for (int i = selection.begin; i < selection.end; i++)
cached_width -= font->get_char_size(text[i]).width;
}
text.erase(selection.begin, selected);
append_at_cursor(p_data);
selection.begin = cursor_pos-selected;
selection.end = cursor_pos;
}
}
void LineEdit::_notification(int p_what) {
switch(p_what) {
#ifdef TOOLS_ENABLED
case NOTIFICATION_ENTER_TREE: {
if (get_tree()->is_editor_hint()) {
cursor_set_blink_enabled(EDITOR_DEF("text_editor/caret_blink", false));
cursor_set_blink_speed(EDITOR_DEF("text_editor/caret_blink_speed", 0.65));
if (!EditorSettings::get_singleton()->is_connected("settings_changed",this,"_editor_settings_changed")) {
EditorSettings::get_singleton()->connect("settings_changed",this,"_editor_settings_changed");
}
}
} break;
#endif
case NOTIFICATION_RESIZED: {
set_cursor_pos( get_cursor_pos() );
} break;
case MainLoop::NOTIFICATION_WM_FOCUS_IN: {
window_has_focus = true;
draw_caret = true;
update();
} break;
case MainLoop::NOTIFICATION_WM_FOCUS_OUT: {
window_has_focus = false;
draw_caret = false;
update();
} break;
case NOTIFICATION_DRAW: {
if ((!has_focus() && !menu->has_focus()) || !window_has_focus) {
draw_caret = false;
}
int width,height;
Size2 size=get_size();
width=size.width;
height=size.height;
RID ci = get_canvas_item();
Ref<StyleBox> style = get_stylebox("normal");
if (!is_editable())
style=get_stylebox("read_only");
Ref<Font> font=get_font("font");
style->draw( ci, Rect2( Point2(), size ) );
if (has_focus()) {
get_stylebox("focus")->draw( ci, Rect2( Point2(), size ) );
}
int x_ofs=0;
switch (align) {
case ALIGN_FILL:
case ALIGN_LEFT: {
x_ofs=style->get_offset().x;
} break;
case ALIGN_CENTER: {
x_ofs=int(size.width-(cached_width))/2;
} break;
case ALIGN_RIGHT: {
x_ofs=int(size.width-style->get_offset().x-(cached_width));
} break;
}
int ofs_max=width-style->get_minimum_size().width;
int char_ofs=window_pos;
int y_area=height-style->get_minimum_size().height;
int y_ofs=style->get_offset().y;
int font_ascent=font->get_ascent();
Color selection_color=get_color("selection_color");
Color font_color=get_color("font_color");
Color font_color_selected=get_color("font_color_selected");
Color cursor_color=get_color("cursor_color");
const String& t = text.empty() ? placeholder : text;
// draw placeholder color
if(text.empty())
font_color.a *= placeholder_alpha;
while(true) {
//end of string, break!
if (char_ofs>=t.length())
break;
CharType cchar=pass?'*':t[char_ofs];
CharType next=pass?'*':t[char_ofs+1];
int char_width=font->get_char_size( cchar,next ).width;
// end of widget, break!
if ((x_ofs + char_width) > ofs_max)
break;
bool selected=selection.enabled && char_ofs>=selection.begin && char_ofs<selection.end;
if (selected)
VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2(x_ofs, y_ofs), Size2(char_width, y_area)), selection_color);
font->draw_char(ci, Point2(x_ofs, y_ofs + font_ascent), cchar, next, selected ? font_color_selected : font_color);
if (char_ofs==cursor_pos && draw_caret) {
VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(
Point2( x_ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color );
}
x_ofs+=char_width;
char_ofs++;
}
if (char_ofs==cursor_pos && draw_caret) {//may be at the end
VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(
Point2( x_ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color );
}
} break;
case NOTIFICATION_FOCUS_ENTER: {
if (!caret_blink_enabled) {
draw_caret = true;
}
if (OS::get_singleton()->has_virtual_keyboard())
OS::get_singleton()->show_virtual_keyboard(text,get_global_rect());
} break;
case NOTIFICATION_FOCUS_EXIT: {
if (OS::get_singleton()->has_virtual_keyboard())
OS::get_singleton()->hide_virtual_keyboard();
} break;
}
}
void LineEdit::copy_text() {
if(selection.enabled) {
OS::get_singleton()->set_clipboard(text.substr(selection.begin, selection.end - selection.begin));
}
}
void LineEdit::cut_text() {
if(selection.enabled) {
undo_text = text;
OS::get_singleton()->set_clipboard(text.substr(selection.begin, selection.end - selection.begin));
selection_delete();
}
}
void LineEdit::paste_text() {
String paste_buffer = OS::get_singleton()->get_clipboard();
if(paste_buffer != "") {
if(selection.enabled) selection_delete();
append_at_cursor(paste_buffer);
emit_signal("text_changed",text);
_change_notify("text");
}
}
void LineEdit::undo() {
int old_cursor_pos = cursor_pos;
text = undo_text;
Ref<Font> font = get_font("font");
cached_width = 0;
for (int i = 0; i<text.length(); i++)
cached_width += font->get_char_size(text[i]).width;
if(old_cursor_pos > text.length()) {
set_cursor_pos(text.length());
} else {
set_cursor_pos(old_cursor_pos);
}
emit_signal("text_changed",text);
_change_notify("text");
}
void LineEdit::shift_selection_check_pre(bool p_shift) {
if (!selection.enabled && p_shift) {
selection.cursor_start=cursor_pos;
}
if (!p_shift)
selection_clear();
}
void LineEdit::shift_selection_check_post(bool p_shift) {
if (p_shift)
selection_fill_at_cursor();
}
void LineEdit::set_cursor_at_pixel_pos(int p_x) {
Ref<Font> font = get_font("font");
int ofs = window_pos;
Ref<StyleBox> style = get_stylebox("normal");
int pixel_ofs = 0;
Size2 size = get_size();
switch (align) {
case ALIGN_FILL:
case ALIGN_LEFT: {
pixel_ofs = int(style->get_offset().x);
} break;
case ALIGN_CENTER: {
pixel_ofs=int(size.width-(cached_width))/2;
} break;
case ALIGN_RIGHT: {
pixel_ofs=int(size.width-style->get_offset().x-(cached_width));
} break;
}
while (ofs<text.length()) {
int char_w = 0;
if (font != NULL) {
char_w = font->get_char_size(text[ofs]).width;
}
pixel_ofs+=char_w;
if (pixel_ofs > p_x) { //found what we look for
if ( (pixel_ofs-p_x) < (char_w >> 1 ) ) {
ofs+=1;
} else if ( (pixel_ofs-p_x) > (char_w >> 1 ) ) {
ofs-=1;
}
break;
}
ofs++;
}
set_cursor_pos( ofs );
/*
int new_cursor_pos=p_x;
int charwidth=draw_area->get_font_char_width(' ',0);
new_cursor_pos=( ( (new_cursor_pos-2)+ (charwidth/2) ) /charwidth );
if (new_cursor_pos>(int)text.length()) new_cursor_pos=text.length();
set_cursor_pos(window_pos+new_cursor_pos); */
}
bool LineEdit::cursor_get_blink_enabled() const {
return caret_blink_enabled;
}
void LineEdit::cursor_set_blink_enabled(const bool p_enabled) {
caret_blink_enabled = p_enabled;
if (p_enabled) {
caret_blink_timer->start();
} else {
caret_blink_timer->stop();
}
draw_caret = true;
}
float LineEdit::cursor_get_blink_speed() const {
return caret_blink_timer->get_wait_time();
}
void LineEdit::cursor_set_blink_speed(const float p_speed) {
ERR_FAIL_COND(p_speed <= 0);
caret_blink_timer->set_wait_time(p_speed);
}
void LineEdit::_reset_caret_blink_timer() {
if (caret_blink_enabled) {
caret_blink_timer->stop();
caret_blink_timer->start();
draw_caret = true;
update();
}
}
void LineEdit::_toggle_draw_caret() {
draw_caret = !draw_caret;
if (is_visible()) {
update();
}
}
void LineEdit::delete_char() {
if ((text.length()<=0) || (cursor_pos==0)) return;
Ref<Font> font = get_font("font");
if (font != NULL) {
cached_width -= font->get_char_size(text[cursor_pos - 1]).width;
}
text.erase( cursor_pos-1, 1 );
set_cursor_pos(get_cursor_pos()-1);
if (cursor_pos==window_pos) {
// set_window_pos(cursor_pos-get_window_length());
}
emit_signal("text_changed",text);
_change_notify("text");
}
void LineEdit::delete_text(int p_from_column, int p_to_column) {
undo_text = text;
if (text.size() > 0)
{
Ref<Font> font = get_font("font");
if (font != NULL) {
for (int i = p_from_column; i < p_to_column; i++)
cached_width -= font->get_char_size(text[i]).width;
}
}
else
{
cached_width = 0;
}
text.erase(p_from_column,p_to_column-p_from_column);
cursor_pos-=CLAMP( cursor_pos-p_from_column, 0, p_to_column-p_from_column);
if (cursor_pos>=text.length()) {
cursor_pos=text.length();
}
if (window_pos>cursor_pos) {
window_pos=cursor_pos;
}
emit_signal("text_changed",text);
_change_notify("text");
}
void LineEdit::set_text(String p_text) {
clear_internal();
append_at_cursor(p_text);
update();
cursor_pos=0;
window_pos=0;
}
void LineEdit::clear() {
clear_internal();
emit_signal("text_changed",text);
_change_notify("text");
}
String LineEdit::get_text() const {
return text;
}
void LineEdit::set_placeholder(String p_text) {
placeholder = XL_MESSAGE(p_text);
update();
}
String LineEdit::get_placeholder() const {
return placeholder;
}
void LineEdit::set_placeholder_alpha(float p_alpha) {
placeholder_alpha = p_alpha;
update();
}
float LineEdit::get_placeholder_alpha() const {
return placeholder_alpha;
}
void LineEdit::set_cursor_pos(int p_pos) {
if (p_pos>(int)text.length())
p_pos=text.length();
if(p_pos<0)
p_pos=0;
cursor_pos=p_pos;
if (!is_inside_tree()) {
window_pos=cursor_pos;
return;
}
Ref<StyleBox> style = get_stylebox("normal");
Ref<Font> font=get_font("font");
if (cursor_pos<window_pos) {
/* Adjust window if cursor goes too much to the left */
set_window_pos(cursor_pos);
} else if (cursor_pos>window_pos) {
/* Adjust window if cursor goes too much to the right */
int window_width=get_size().width-style->get_minimum_size().width;
if (window_width<0)
return;
int wp=window_pos;
if (font.is_valid()) {
int accum_width=0;
for(int i=cursor_pos;i>=window_pos;i--) {
if (i>=text.length()) {
accum_width=font->get_char_size(' ').width; //anything should do
} else {
accum_width+=font->get_char_size(text[i],i+1<text.length()?text[i+1]:0).width; //anything should do
}
if (accum_width>=window_width)
break;
wp=i;
}
}
if (wp!=window_pos)
set_window_pos( wp );
}
update();
}
int LineEdit::get_cursor_pos() const {
return cursor_pos;
}
void LineEdit::set_window_pos(int p_pos) {
window_pos=p_pos;
if (window_pos<0) window_pos=0;
}
void LineEdit::append_at_cursor(String p_text) {
if ( ( max_length <= 0 ) || (text.length()+p_text.length() <= max_length)) {
undo_text = text;
Ref<Font> font = get_font("font");
if (font != NULL) {
for (int i = 0; i < p_text.length(); i++)
cached_width += font->get_char_size(p_text[i]).width;
}
else {
cached_width = 0;
}
String pre = text.substr( 0, cursor_pos );
String post = text.substr( cursor_pos, text.length()-cursor_pos );
text=pre+p_text+post;
set_cursor_pos(cursor_pos+p_text.length());
}
}
void LineEdit::clear_internal() {
cached_width = 0;
cursor_pos=0;
window_pos=0;
undo_text="";
text="";
update();
}
Size2 LineEdit::get_minimum_size() const {
Ref<StyleBox> style = get_stylebox("normal");
Ref<Font> font=get_font("font");
Size2 min=style->get_minimum_size();
min.height+=font->get_height();
min.width+=get_constant("minimum_spaces")*font->get_char_size(' ').x;
return min;
}
/* selection */
void LineEdit::selection_clear() {
selection.begin=0;
selection.end=0;
selection.cursor_start=0;
selection.enabled=false;
selection.creating=false;
selection.doubleclick=false;
update();
}
void LineEdit::selection_delete() {
if (selection.enabled)
delete_text(selection.begin,selection.end);
selection_clear();
}
void LineEdit::set_max_length(int p_max_length) {
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) {
if (p_from==0 && p_to==0) {
selection_clear();
return;
}
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.doubleclick=false;
update();
}
bool LineEdit::is_text_field() const {
return true;
}
void LineEdit::menu_option(int p_option) {
switch(p_option) {
case MENU_CUT: {
cut_text();
} break;
case MENU_COPY: {
copy_text();
} break;
case MENU_PASTE: {
paste_text();
} break;
case MENU_CLEAR: {
clear();
} break;
case MENU_SELECT_ALL: {
select_all();
} break;
case MENU_UNDO: {
undo();
} break;
}
}
PopupMenu *LineEdit::get_menu() const {
return menu;
}
#ifdef TOOLS_ENABLED
void LineEdit::_editor_settings_changed() {
cursor_set_blink_enabled(EDITOR_DEF("text_editor/caret_blink", false));
cursor_set_blink_speed(EDITOR_DEF("text_editor/caret_blink_speed", 0.65));
}
#endif
void LineEdit::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_toggle_draw_caret"),&LineEdit::_toggle_draw_caret);
#ifdef TOOLS_ENABLED
ObjectTypeDB::bind_method("_editor_settings_changed",&LineEdit::_editor_settings_changed);
#endif
ObjectTypeDB::bind_method(_MD("set_align", "align"), &LineEdit::set_align);
ObjectTypeDB::bind_method(_MD("get_align"), &LineEdit::get_align);
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_placeholder","text"),&LineEdit::set_placeholder);
ObjectTypeDB::bind_method(_MD("get_placeholder"),&LineEdit::get_placeholder);
ObjectTypeDB::bind_method(_MD("set_placeholder_alpha","alpha"),&LineEdit::set_placeholder_alpha);
ObjectTypeDB::bind_method(_MD("get_placeholder_alpha"),&LineEdit::get_placeholder_alpha);
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("cursor_set_blink_enabled", "enable"),&LineEdit::cursor_set_blink_enabled);
ObjectTypeDB::bind_method(_MD("cursor_get_blink_enabled"),&LineEdit::cursor_get_blink_enabled);
ObjectTypeDB::bind_method(_MD("cursor_set_blink_speed", "blink_speed"),&LineEdit::cursor_set_blink_speed);
ObjectTypeDB::bind_method(_MD("cursor_get_blink_speed"),&LineEdit::cursor_get_blink_speed);
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::select,DEFVAL(0),DEFVAL(-1));
ObjectTypeDB::bind_method(_MD("menu_option","option"),&LineEdit::menu_option);
ObjectTypeDB::bind_method(_MD("get_menu:PopupMenu"),&LineEdit::get_menu);
ADD_SIGNAL( MethodInfo("text_changed", PropertyInfo( Variant::STRING, "text" )) );
ADD_SIGNAL( MethodInfo("text_entered", PropertyInfo( Variant::STRING, "text" )) );
BIND_CONSTANT(ALIGN_LEFT);
BIND_CONSTANT(ALIGN_CENTER);
BIND_CONSTANT(ALIGN_RIGHT);
BIND_CONSTANT(ALIGN_FILL);
BIND_CONSTANT( MENU_CUT );
BIND_CONSTANT( MENU_COPY );
BIND_CONSTANT( MENU_PASTE );
BIND_CONSTANT( MENU_CLEAR );
BIND_CONSTANT( MENU_SELECT_ALL );
BIND_CONSTANT( MENU_UNDO );
BIND_CONSTANT( MENU_MAX );
ADD_PROPERTYNZ( PropertyInfo( Variant::STRING, "text" ), _SCS("set_text"),_SCS("get_text") );
ADD_PROPERTYNZ( PropertyInfo( Variant::STRING, "placeholder/text" ), _SCS("set_placeholder"),_SCS("get_placeholder") );
ADD_PROPERTYNZ( PropertyInfo( Variant::REAL, "placeholder/alpha",PROPERTY_HINT_RANGE,"0,1,0.001" ), _SCS("set_placeholder_alpha"),_SCS("get_placeholder_alpha") );
ADD_PROPERTYNZ(PropertyInfo(Variant::INT, "align", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), _SCS("set_align"), _SCS("get_align"));
ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "max_length" ), _SCS("set_max_length"),_SCS("get_max_length") );
ADD_PROPERTYNO( PropertyInfo( Variant::BOOL, "editable" ), _SCS("set_editable"),_SCS("is_editable") );
ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "secret" ), _SCS("set_secret"),_SCS("is_secret") );
ADD_PROPERTY( PropertyInfo( Variant::INT,"focus_mode", PROPERTY_HINT_ENUM, "None,Click,All" ), _SCS("set_focus_mode"), _SCS("get_focus_mode") );
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "caret/caret_blink"), _SCS("cursor_set_blink_enabled"), _SCS("cursor_get_blink_enabled"));;
ADD_PROPERTYNZ(PropertyInfo(Variant::REAL, "caret/caret_blink_speed",PROPERTY_HINT_RANGE,"0.1,10,0.1"), _SCS("cursor_set_blink_speed"),_SCS("cursor_get_blink_speed") );
}
LineEdit::LineEdit() {
align = ALIGN_LEFT;
cached_width = 0;
cursor_pos=0;
window_pos=0;
window_has_focus=true;
max_length = 0;
pass=false;
placeholder_alpha=0.6;
selection_clear();
set_focus_mode( FOCUS_ALL );
editable=true;
set_default_cursor_shape(CURSOR_IBEAM);
set_stop_mouse(true);
draw_caret=true;
caret_blink_enabled=false;
caret_blink_timer = memnew(Timer);
add_child(caret_blink_timer);
caret_blink_timer->set_wait_time(0.65);
caret_blink_timer->connect("timeout", this,"_toggle_draw_caret");
cursor_set_blink_enabled(false);
menu = memnew( PopupMenu );
add_child(menu);
menu->add_item(TTR("Cut"),MENU_CUT,KEY_MASK_CMD|KEY_X);
menu->add_item(TTR("Copy"),MENU_COPY,KEY_MASK_CMD|KEY_C);
menu->add_item(TTR("Paste"),MENU_PASTE,KEY_MASK_CMD|KEY_V);
menu->add_separator();
menu->add_item(TTR("Select All"),MENU_SELECT_ALL,KEY_MASK_CMD|KEY_A);
menu->add_item(TTR("Clear"),MENU_CLEAR);
menu->add_separator();
menu->add_item(TTR("Undo"),MENU_UNDO,KEY_MASK_CMD|KEY_Z);
menu->connect("item_pressed",this,"menu_option");
}
LineEdit::~LineEdit() {
}
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