comparison: src/messagelog.cpp
src/messagelog.cpp
- changeset 667
- 31540c1f22ea
- parent 666
- c595cfb4791c
- parent 626
- f3c01a033e9e
- child 668
- 6a05c4969074
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| 666:c595cfb4791c | 667:31540c1f22ea |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 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 "gldraw.h" | |
| 23 #include "gui.h" | |
| 24 #include "moc_messagelog.cpp" | |
| 25 | |
| 26 static const int g_maxMessages = 5; | |
| 27 static const int g_expiry = 5; | |
| 28 static const int g_fadeTime = 500; // msecs | |
| 29 | |
| 30 // ============================================================================= | |
| 31 // ----------------------------------------------------------------------------- | |
| 32 MessageManager::MessageManager (QObject* parent) : | |
| 33 QObject (parent) | |
| 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 (str text) : | |
| 42 text (text), | |
| 43 alpha (1.0f), | |
| 44 expiry (QDateTime::currentDateTime().addSecs (g_expiry)) {} | |
| 45 | |
| 46 // ============================================================================= | |
| 47 // Check this line's expiry and update alpha accordingly. Returns true if the | |
| 48 // line is to still stick around, false if it expired. 'changed' is updated to | |
| 49 // whether the line has somehow changed since the last update. | |
| 50 // ----------------------------------------------------------------------------- | |
| 51 bool MessageManager::Line::update (bool& changed) | |
| 52 { changed = false; | |
| 53 QDateTime now = QDateTime::currentDateTime(); | |
| 54 int msec = now.msecsTo (expiry); | |
| 55 | |
| 56 if (now >= expiry) | |
| 57 { // Message line has expired | |
| 58 changed = true; | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 if (msec <= g_fadeTime) | |
| 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 (str line) | |
| 75 { // If there's too many entries, pop the excess out | |
| 76 while (m_lines.size() >= g_maxMessages) | |
| 77 m_lines.removeFirst(); | |
| 78 | |
| 79 m_lines << Line (line); | |
| 80 | |
| 81 // Update the renderer view | |
| 82 if (renderer()) | |
| 83 renderer()->update(); | |
| 84 } | |
| 85 | |
| 86 // ============================================================================= | |
| 87 // Ticks the message manager. All lines are ticked and the renderer scene is | |
| 88 // redrawn if something changed. | |
| 89 // ----------------------------------------------------------------------------- | |
| 90 void MessageManager::tick() | |
| 91 { if (m_lines.isEmpty()) | |
| 92 return; | |
| 93 | |
| 94 bool changed = false; | |
| 95 | |
| 96 for (int i = 0; i < m_lines.size(); ++i) | |
| 97 { bool lineChanged; | |
| 98 | |
| 99 if (!m_lines[i].update (lineChanged)) | |
| 100 m_lines.removeAt (i--); | |
| 101 | |
| 102 changed |= lineChanged; | |
| 103 } | |
| 104 | |
| 105 if (changed && renderer()) | |
| 106 renderer()->update(); | |
| 107 } | |
| 108 | |
| 109 // ============================================================================= | |
| 110 // ----------------------------------------------------------------------------- | |
| 111 const QList<MessageManager::Line>& MessageManager::getLines() const | |
| 112 { return m_lines; | |
| 113 } | |
| 114 | |
| 115 // ============================================================================= | |
| 116 // log() interface - format the argument list and add the resulting string to | |
| 117 // the main message manager. | |
| 118 // ----------------------------------------------------------------------------- | |
| 119 void DoLog (std::initializer_list<StringFormatArg> args) | |
| 120 { const str msg = DoFormat (args); | |
| 121 | |
| 122 for (str& a : msg.split ("\n", QString::SkipEmptyParts)) | |
| 123 { if (g_win) | |
| 124 g_win->addMessage (a); | |
| 125 | |
| 126 // Also print it to stdout | |
| 127 fprint (stdout, "%1\n", a); | |
| 128 } | |
| 129 } |
