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authorBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:09:43 +0100
committerBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:39:54 +0100
commit645250e1cd8ce9bc1faea599df7a1b05836bfeb8 (patch)
treec6311afab3900d2dd2aecbfbe1ac348d0e48c428 /dggui/lineedit.cc
parentdce64999d3325c5b55499d6ba657066efa48fbff (diff)
Split UI code into application/plugin UI and UI library.
Diffstat (limited to 'dggui/lineedit.cc')
-rw-r--r--dggui/lineedit.cc285
1 files changed, 285 insertions, 0 deletions
diff --git a/dggui/lineedit.cc b/dggui/lineedit.cc
new file mode 100644
index 0000000..14cc234
--- /dev/null
+++ b/dggui/lineedit.cc
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+/* -*- 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 Lesser General Public License as published by
+ * the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 <hugin.hpp>
+
+#define BORDER 10
+
+namespace GUI {
+
+LineEdit::LineEdit(Widget *parent)
+ : Widget(parent)
+{
+ setReadOnly(false);
+}
+
+LineEdit::~LineEdit()
+{
+}
+
+void LineEdit::setReadOnly(bool ro)
+{
+ readonly = ro;
+}
+
+bool LineEdit::readOnly()
+{
+ return readonly;
+}
+
+void LineEdit::setText(const std::string& text)
+{
+ _text = text;
+ pos = text.size();
+
+ visibleText = _text;
+ offsetPos = 0;
+
+ redraw();
+ textChanged();
+}
+
+std::string LineEdit::getText()
+{
+ return _text;
+}
+
+void LineEdit::buttonEvent(ButtonEvent *buttonEvent)
+{
+ if(readOnly())
+ {
+ return;
+ }
+
+ // Ignore everything except left clicks.
+ if(buttonEvent->button != MouseButton::left)
+ {
+ return;
+ }
+
+ if(buttonEvent->direction == Direction::down)
+ {
+ for(int i = 0; i < (int)visibleText.length(); ++i)
+ {
+ int textWidth = font.textWidth(visibleText.substr(0, i));
+ if(buttonEvent->x < (textWidth + BORDER))
+ {
+ pos = i + offsetPos;
+ break;
+ }
+ }
+ redraw();
+ }
+}
+
+void LineEdit::keyEvent(KeyEvent *keyEvent)
+{
+ if(readOnly())
+ {
+ return;
+ }
+
+ bool change = false;
+
+ if(keyEvent->direction == Direction::down)
+ {
+ switch(keyEvent->keycode) {
+ case Key::left:
+ if(pos == 0)
+ {
+ return;
+ }
+
+ pos--;
+
+ if(offsetPos >= pos)
+ {
+ walkstate = WalkLeft;
+ }
+ break;
+
+ case Key::right:
+ if(pos == _text.length())
+ {
+ return;
+ }
+
+ pos++;
+
+ if((pos < _text.length()) && ((offsetPos + visibleText.length()) <= pos))
+ {
+ walkstate = WalkRight;
+ }
+ break;
+
+ case Key::home:
+ pos = 0;
+ visibleText = _text;
+ offsetPos = 0;
+ break;
+
+ case Key::end:
+ pos = _text.length();
+ visibleText = _text;
+ offsetPos = 0;
+ break;
+
+ case Key::deleteKey:
+ if(pos < _text.length())
+ {
+ std::string t = _text.substr(0, pos);
+ t += _text.substr(pos + 1, std::string::npos);
+ _text = t;
+ change = true;
+ }
+ break;
+
+ case 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;
+ }
+ break;
+
+ case Key::character:
+ {
+ std::string pre = _text.substr(0, pos);
+ std::string post = _text.substr(pos, std::string::npos);
+ _text = pre + keyEvent->text + post;
+ change = true;
+ pos++;
+ }
+ break;
+
+ case Key::enter:
+ enterPressedNotifier();
+ break;
+
+ default:
+ break;
+ }
+
+ redraw();
+ }
+
+ if(change)
+ {
+ textChanged();
+ }
+}
+
+void LineEdit::repaintEvent(RepaintEvent *repaintEvent)
+{
+ Painter p(*this);
+
+ int w = width();
+ int h = height();
+ if((w == 0) || (h == 0))
+ {
+ return;
+ }
+
+ box.setSize(w, h);
+ p.drawImage(0, 0, box);
+
+ p.setColour(Colour(183.0f/255.0f, 219.0f/255.0f, 255.0f/255.0f, 1.0f));
+
+ switch(walkstate) {
+ case WalkLeft:
+ visibleText = _text.substr(pos, std::string::npos);
+ offsetPos = pos;
+ break;
+
+ case WalkRight:
+ {
+ int delta = (offsetPos < _text.length()) ? 1 : 0;
+ visibleText = _text.substr(offsetPos + delta);
+ offsetPos = offsetPos + delta;
+ }
+ break;
+
+ case Noop:
+ visibleText = _text;
+ offsetPos = 0;
+ break;
+ }
+
+ while(true)
+ {
+ int textWidth = font.textWidth(visibleText);
+ if(textWidth <= std::max(w - BORDER - 4 + 3, 0))
+ {
+ break;
+ }
+
+ switch(walkstate) {
+ case WalkLeft:
+ visibleText = visibleText.substr(0, visibleText.length() - 1);
+ break;
+
+ case WalkRight:
+ visibleText = visibleText.substr(0, visibleText.length() - 1);
+ break;
+
+ case Noop:
+ if(offsetPos < pos)
+ {
+ visibleText = visibleText.substr(1);
+ offsetPos++;
+ }
+ else
+ {
+ visibleText = visibleText.substr(0, visibleText.length() - 1);
+ }
+ 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);
+ }
+}
+
+} // GUI::