diff options
Diffstat (limited to 'scene/gui/line_edit.cpp')
| -rw-r--r-- | scene/gui/line_edit.cpp | 821 |
1 files changed, 821 insertions, 0 deletions
diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp new file mode 100644 index 0000000000..ad1b7fd66b --- /dev/null +++ b/scene/gui/line_edit.cpp @@ -0,0 +1,821 @@ +/*************************************************************************/ +/* line_edit.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* 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. */ +/*************************************************************************/ +#include "line_edit.h" +#include "os/keyboard.h" +#include "os/os.h" +#include "print_string.h" +#include "label.h" + +void LineEdit::_input_event(InputEvent p_event) { + + + switch(p_event.type) { + + case InputEvent::MOUSE_BUTTON: { + + const InputEventMouseButton &b = p_event.mouse_button; + + if (b.button_index!=1) + break; + + if (b.pressed) { + + set_cursor_at_pixel_pos(b.x); + + 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; + } + + update(); + } break; + case InputEvent::MOUSE_MOTION: { + + const InputEventMouseMotion& m=p_event.mouse_motion; + + if (m.button_mask&1) { + + 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(k.mod.command && editable) { + cut_text(); + } + + } break; + + case (KEY_C): { // COPY + + if(k.mod.command) { + copy_text(); + } + + } break; + + case (KEY_V): { // PASTE + + if(k.mod.command && editable) { + + paste_text(); + } + + } break; + + case (KEY_Z): { // Simple One level undo + + if( k.mod.command && editable) { + + int old_cursor_pos = cursor_pos; + text = undo_text; + 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"); + + } break; + + case (KEY_U): { // Delete from start to cursor + + if( k.mod.command && editable) { + + selection_clear(); + undo_text = text; + text = text.substr(cursor_pos,text.length()-cursor_pos); + set_cursor_pos(0); + emit_signal("text_changed",text); + _change_notify("text"); + } + + + } break; + + case (KEY_Y): { // PASTE (Yank for unix users) + + if(k.mod.command && editable) { + + paste_text(); + } + + } break; + case (KEY_K): { // Delete from cursor_pos to end + + if(k.mod.command && editable) { + + selection_clear(); + undo_text = text; + text = text.substr(0,cursor_pos); + emit_signal("text_changed",text); + _change_notify("text"); + } + + } break; + default: { handled=false;} + } + + if (handled) { + accept_event(); + return; + } + } + + + if (!k.mod.alt && !k.mod.meta && !k.mod.command) { + + bool handled=true; + switch (code) { + + case KEY_ENTER: + case KEY_RETURN: { + + emit_signal( "text_entered",text ); + return; + } break; + + case KEY_BACKSPACE: { + + if (editable) { + undo_text = text; + if (selection.enabled) + selection_delete(); + else + delete_char(); + } + } break; + case KEY_LEFT: { + shift_selection_check_pre(k.mod.shift); + set_cursor_pos(get_cursor_pos()-1); + shift_selection_check_post(k.mod.shift); + + } break; + case KEY_RIGHT: { + + shift_selection_check_pre(k.mod.shift); + set_cursor_pos(get_cursor_pos()+1); + shift_selection_check_post(k.mod.shift); + } break; + case KEY_DELETE: { + + if (editable) { + undo_text = text; + if (selection.enabled) + selection_delete(); + else if (cursor_pos<text.length()) { + + set_cursor_pos(get_cursor_pos()+1); + delete_char(); + } + } + + } break; + case KEY_HOME: { + + shift_selection_check_pre(k.mod.shift); + set_cursor_pos(0); + shift_selection_check_post(k.mod.shift); + } break; + case KEY_END: { + + shift_selection_check_pre(k.mod.shift); + set_cursor_pos(text.length()); + shift_selection_check_post(k.mod.shift); + } break; + + + default: { + + if (k.unicode>=32 && k.scancode!=KEY_DELETE) { + + if (editable) { + selection_delete(); + CharType ucodestr[2]={k.unicode,0}; + append_at_cursor(ucodestr); + emit_signal("text_changed",text); + _change_notify("text"); + } + + } else { + handled=false; + } + } break; + } + + if (handled) + accept_event(); + else + return; + + + selection.old_shift=k.mod.shift; + update(); + + } + + + return; + + } break; + + } +} + +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); + append_at_cursor(p_data); + } +} + + +void LineEdit::_notification(int p_what) { + + switch(p_what) { + + case NOTIFICATION_RESIZED: { + + set_cursor_pos( get_cursor_pos() ); + + } break; + case NOTIFICATION_DRAW: { + + 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 ofs=style->get_offset().x; + 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"); + + while(true) { + + //end of string, break! + if (char_ofs>=text.length()) + break; + + CharType cchar=pass?'*':text[char_ofs]; + CharType next=pass?'*':text[char_ofs+1]; + int char_width=font->get_char_size( cchar,next ).width; + + // end of widget, break! + if ( (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( ofs , y_ofs ),Size2( char_width, y_area )),selection_color); + + + font->draw_char(ci,Point2( ofs , y_ofs+font_ascent ), cchar, next,selected?font_color_selected:font_color ); + + if (char_ofs==cursor_pos && has_focus()) + VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2( + Point2( ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color ); + + ofs+=char_width; + char_ofs++; + } + + if (char_ofs==cursor_pos && has_focus()) //may be at the end + VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2( + Point2( ofs , y_ofs ), Size2( 1, y_area ) ), cursor_color ); + + } break; + case NOTIFICATION_FOCUS_ENTER: { + + if (OS::get_singleton()->has_virtual_keyboard()) + OS::get_singleton()->show_virtual_keyboard(get_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::shift_selection_check_pre(bool p_shift) { + + if (!selection.old_shift && 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) { + + int ofs=window_pos; + int pixel_ofs=get_stylebox("normal")->get_offset().x; + Ref<Font> font=get_font("font"); + + while (ofs<text.length()) { + + int 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; + } + + 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); */ +} + + +void LineEdit::delete_char() { + + if ((text.length()<=0) || (cursor_pos==0)) return; + + + 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::set_text(String p_text) { + + clear_internal(); + append_at_cursor(p_text); + update(); + cursor_pos=0; + window_pos=0; +} + +void LineEdit::clear() { + + clear_internal(); +} + +String LineEdit::get_text() const { + + return text; +} + +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 (cursor_pos>(window_pos+get_window_length())) { +// set_window_pos(cursor_pos-get_window_lengt//h()); +// } + + if (!is_inside_scene()) { + + 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 width_to_cursor=0; + int wp=window_pos; + + for (int i=window_pos;i<cursor_pos;i++) + width_to_cursor+=font->get_char_size( text[i] ).width; + + while(width_to_cursor>=window_width && wp<text.length()) { + + width_to_cursor-=font->get_char_size( text[ wp ] ).width; + wp++; + } + + 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; + 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() { + + 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.old_shift=false; + selection.doubleclick=false; + update(); +} + + +void LineEdit::selection_delete() { + + if (selection.enabled) { + + 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) { + + window_pos=cursor_pos; + } + + emit_signal("text_changed",text); + _change_notify("text"); + }; + + 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) { + + 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() { + + +} + |