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Diffstat (limited to 'plugingui/lineedit.cc')
| -rw-r--r-- | plugingui/lineedit.cc | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/plugingui/lineedit.cc b/plugingui/lineedit.cc new file mode 100644 index 0000000..5e1eb9b --- /dev/null +++ b/plugingui/lineedit.cc @@ -0,0 +1,239 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * lineedit.cc + * + * Sun Oct 9 13:01:52 CEST 2011 + * Copyright 2011 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * DrumGizmo is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "lineedit.h" + +#include <stdio.h> + +#include "window.h" + +#include <assert.h> + +#include <hugin.hpp> + +#define BORDER 10 + +GUI::LineEdit::LineEdit(Widget *parent) + : GUI::Widget(parent) +{ + pos = 0; + offsetpos = 0; + setReadOnly(false); + + box.topLeft = new Image(":widget_tl.png"); + box.top = new Image(":widget_t.png"); + box.topRight = new Image(":widget_tr.png"); + box.left = new Image(":widget_l.png"); + box.right = new Image(":widget_r.png"); + box.bottomLeft = new Image(":widget_bl.png"); + box.bottom = new Image(":widget_b.png"); + box.bottomRight = new Image(":widget_br.png"); + box.center = new Image(":widget_c.png"); + + handler = NULL; +} + +void GUI::LineEdit::registerEnterPressedHandler(void (*handler)(void *), void *ptr) +{ + this->handler = handler; + this->ptr = ptr; +} + +void GUI::LineEdit::setReadOnly(bool ro) +{ + readonly = ro; +} + +bool GUI::LineEdit::readOnly() +{ + return readonly; +} + +void GUI::LineEdit::setText(std::string text) +{ + _text = text; + pos = text.size(); + + repaintEvent(NULL); + textChanged(); +} + +std::string GUI::LineEdit::text() +{ + return _text; +} + +void GUI::LineEdit::buttonEvent(ButtonEvent *e) +{ + if(readOnly()) return; + + + if(e->direction == 1) { + for(int i = 0; i < (int)_visibletext.length(); i++) { + if(e->x < (int)(font.textWidth(_visibletext.substr(0, i)) + BORDER)) { + pos = i + offsetpos; + break; + } + } + repaintEvent(NULL); + } +} + +void GUI::LineEdit::keyEvent(GUI::KeyEvent *e) +{ + if(readOnly()) return; + + bool change = false; + + if(e->direction == -1) { + + if(e->keycode == GUI::KeyEvent::KEY_LEFT) { + if(pos) pos--; + if(offsetpos >= pos) walkstate = WALK_LEFT; + + } else if(e->keycode == GUI::KeyEvent::KEY_HOME) { + pos = 0; + + } else if(e->keycode == GUI::KeyEvent::KEY_END) { + pos = _text.length(); + + } else if(e->keycode == GUI::KeyEvent::KEY_RIGHT) { + if(pos < _text.length()) pos++; + if(offsetpos + _visibletext.length() <= pos && + pos < _text.length()) walkstate = WALK_RIGHT; + + } else if(e->keycode == GUI::KeyEvent::KEY_DELETE) { + if(pos < _text.length()) { + std::string t = _text.substr(0, pos); + t += _text.substr(pos + 1, std::string::npos); + _text = t; + change = true; + } + + } else if(e->keycode == GUI::KeyEvent::KEY_BACKSPACE) { + if(pos > 0) { + std::string t = _text.substr(0, pos - 1); + t += _text.substr(pos, std::string::npos); + _text = t; + pos--; + change = true; + } + + } else if(e->keycode == GUI::KeyEvent::KEY_CHARACTER) { + std::string pre = _text.substr(0, pos); + std::string post = _text.substr(pos, std::string::npos); + _text = pre + e->text + post; + change = true; + pos++; + + } else if(e->keycode == GUI::KeyEvent::KEY_ENTER) { + if(handler) handler(ptr); + } + repaintEvent(NULL); + } + + if(change) textChanged(); +} + +void GUI::LineEdit::repaintEvent(GUI::RepaintEvent *e) +{ + Painter p(this); + + p.clear(); + + int w = width(); + int h = height(); + if(w == 0 || h == 0) return; + p.drawBox(0, 0, &box, w, h); + + p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1)); + + if(walkstate == WALK_LEFT) { + _visibletext = _text.substr(pos, std::string::npos); + offsetpos = pos; + } + else if(walkstate == WALK_RIGHT) { + int d = (offsetpos < _text.length()) ? 1 : 0; + _visibletext = _text.substr(offsetpos + d); + offsetpos = offsetpos + d; + } + else { + _visibletext = _text; + offsetpos = 0; + } + while(true) { + int textwidth = font.textWidth(_visibletext); + if(textwidth > w - BORDER - 4 + 3) { + if(walkstate == WALK_LEFT) { + _visibletext = _visibletext.substr(0, _visibletext.length()-1); + } + else if(walkstate == WALK_RIGHT) { + _visibletext = _visibletext.substr(0, _visibletext.length()-1); + } + else { + if(offsetpos < pos) { + _visibletext = _visibletext.substr(1); + offsetpos++; + } + else { + _visibletext = _visibletext.substr(0, _visibletext.length() - 1); + } + } + } + else { + break; + } + } + + walkstate = NOOP; + + p.drawText(BORDER - 4 + 3, height()/2+5 + 1 + 1 + 1, font, _visibletext); + + if(readOnly()) return; + + if(hasKeyboardFocus()) { + size_t px = font.textWidth(_visibletext.substr(0, pos - offsetpos)); + p.drawLine(px + BORDER - 1 - 4 + 3, 6, + px + BORDER - 1 - 4 + 3, height() - 7); + } +} + +#ifdef TEST_LINEEDIT +//Additional dependency files +//deps: +//Required cflags (autoconf vars may be used) +//cflags: +//Required link options (autoconf vars may be used) +//libs: +#include "test.h" + +TEST_BEGIN; + +// TODO: Put some testcode here (see test.h for usable macros). + +TEST_END; + +#endif/*TEST_LINEEDIT*/ |