comparison: src/messageLog.cc
src/messageLog.cc
- changeset 655
- b376645315ab
- child 662
- 2f1bd9112408
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| 654:a74f2ff353b8 | 655:b376645315ab |
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| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013, 2014 Santeri Piippo | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation, either version 3 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include <QTimer> | |
| 20 #include <QDate> | |
| 21 #include "messageLog.h" | |
| 22 #include "glRenderer.h" | |
| 23 #include "mainWindow.h" | |
| 24 | |
| 25 static const int g_maxMessages = 5; | |
| 26 static const int g_expiry = 5; | |
| 27 static const int g_fadeTime = 500; // msecs | |
| 28 | |
| 29 // ============================================================================= | |
| 30 // | |
| 31 MessageManager::MessageManager (QObject* parent) : | |
| 32 QObject (parent) | |
| 33 { | |
| 34 m_ticker = new QTimer; | |
| 35 m_ticker->start (100); | |
| 36 connect (m_ticker, SIGNAL (timeout()), this, SLOT (tick())); | |
| 37 } | |
| 38 | |
| 39 // ============================================================================= | |
| 40 // | |
| 41 MessageManager::Line::Line (QString text) : | |
| 42 text (text), | |
| 43 alpha (1.0f), | |
| 44 expiry (QDateTime::currentDateTime().addSecs (g_expiry)) {} | |
| 45 | |
| 46 // ============================================================================= | |
| 47 // | |
| 48 bool MessageManager::Line::update (bool& changed) | |
| 49 { | |
| 50 changed = false; | |
| 51 QDateTime now = QDateTime::currentDateTime(); | |
| 52 int msec = now.msecsTo (expiry); | |
| 53 | |
| 54 if (now >= expiry) | |
| 55 { | |
| 56 // Message line has expired | |
| 57 changed = true; | |
| 58 return false; | |
| 59 } | |
| 60 | |
| 61 if (msec <= g_fadeTime) | |
| 62 { | |
| 63 // Message line has not expired but is fading out | |
| 64 alpha = ( (float) msec) / g_fadeTime; | |
| 65 changed = true; | |
| 66 } | |
| 67 | |
| 68 return true; | |
| 69 } | |
| 70 | |
| 71 // ============================================================================= | |
| 72 // Add a line to the message manager. | |
| 73 // | |
| 74 void MessageManager::addLine (QString line) | |
| 75 { | |
| 76 // If there's too many entries, pop the excess out | |
| 77 while (m_lines.size() >= g_maxMessages) | |
| 78 m_lines.removeFirst(); | |
| 79 | |
| 80 m_lines << Line (line); | |
| 81 | |
| 82 // Update the renderer view | |
| 83 if (renderer()) | |
| 84 renderer()->update(); | |
| 85 } | |
| 86 | |
| 87 // ============================================================================= | |
| 88 // Ticks the message manager. All lines are ticked and the renderer scene is | |
| 89 // redrawn if something changed. | |
| 90 // | |
| 91 void MessageManager::tick() | |
| 92 { | |
| 93 if (m_lines.isEmpty()) | |
| 94 return; | |
| 95 | |
| 96 bool changed = false; | |
| 97 | |
| 98 for (int i = 0; i < m_lines.size(); ++i) | |
| 99 { | |
| 100 bool lineChanged; | |
| 101 | |
| 102 if (!m_lines[i].update (lineChanged)) | |
| 103 m_lines.removeAt (i--); | |
| 104 | |
| 105 changed |= lineChanged; | |
| 106 } | |
| 107 | |
| 108 if (changed && renderer()) | |
| 109 renderer()->update(); | |
| 110 } | |
| 111 | |
| 112 // ============================================================================= | |
| 113 // | |
| 114 const QList<MessageManager::Line>& MessageManager::getLines() const | |
| 115 { | |
| 116 return m_lines; | |
| 117 } | |
| 118 | |
| 119 // ============================================================================= | |
| 120 // | |
| 121 void printToLog (const QString& msg) | |
| 122 { | |
| 123 for (QString& a : msg.split ("\n", QString::SkipEmptyParts)) | |
| 124 { | |
| 125 if (g_win != null) | |
| 126 g_win->addMessage (a); | |
| 127 | |
| 128 // Also print it to stdout | |
| 129 fprint (stdout, "%1\n", a); | |
| 130 } | |
| 131 } |
