comparison: src/colorSelector.cc
src/colorSelector.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 * colorSelectDialog.cxx: Color selector box. | |
| 20 */ | |
| 21 | |
| 22 #include <QGraphicsScene> | |
| 23 #include <QGraphicsItem> | |
| 24 #include <QMouseEvent> | |
| 25 #include <QScrollBar> | |
| 26 | |
| 27 #include "main.h" | |
| 28 #include "mainWindow.h" | |
| 29 #include "colorSelector.h" | |
| 30 #include "colors.h" | |
| 31 #include "configuration.h" | |
| 32 #include "miscallenous.h" | |
| 33 #include "ui_colorsel.h" | |
| 34 | |
| 35 static const int g_numColumns = 16; | |
| 36 static const int g_squareSize = 32; | |
| 37 | |
| 38 extern_cfg (String, gl_maincolor); | |
| 39 extern_cfg (Float, gl_maincolor_alpha); | |
| 40 | |
| 41 // ============================================================================= | |
| 42 // ============================================================================= | |
| 43 ColorSelector::ColorSelector (int defval, QWidget* parent) : QDialog (parent) | |
| 44 { | |
| 45 // Remove the default color if it's invalid | |
| 46 if (!getColor (defval)) | |
| 47 defval = -1; | |
| 48 | |
| 49 m_firstResize = true; | |
| 50 ui = new Ui_ColorSelUI; | |
| 51 ui->setupUi (this); | |
| 52 | |
| 53 m_scene = new QGraphicsScene; | |
| 54 ui->viewport->setScene (m_scene); | |
| 55 setSelection (getColor (defval)); | |
| 56 | |
| 57 // not really an icon but eh | |
| 58 m_scene->setBackgroundBrush (getIcon ("checkerboard")); | |
| 59 drawScene(); | |
| 60 | |
| 61 int width = viewportWidth(); | |
| 62 ui->viewport->setMinimumWidth (width); | |
| 63 ui->viewport->setMaximumWidth (width); | |
| 64 | |
| 65 drawColorInfo(); | |
| 66 } | |
| 67 | |
| 68 // ============================================================================= | |
| 69 // ============================================================================= | |
| 70 ColorSelector::~ColorSelector() | |
| 71 { | |
| 72 delete ui; | |
| 73 } | |
| 74 | |
| 75 // ============================================================================= | |
| 76 // ============================================================================= | |
| 77 void ColorSelector::drawScene() | |
| 78 { | |
| 79 const int numCols = g_numColumns; | |
| 80 const int square = g_squareSize; | |
| 81 const int g_maxHeight = (numRows() * square); | |
| 82 QRect sceneRect (0, 0, viewportWidth(), g_maxHeight); | |
| 83 | |
| 84 m_scene->setSceneRect (sceneRect); | |
| 85 ui->viewport->setSceneRect (sceneRect); | |
| 86 | |
| 87 const double penWidth = 1.0f; | |
| 88 | |
| 89 // Draw the color rectangles. | |
| 90 m_scene->clear(); | |
| 91 | |
| 92 for (int i = 0; i < MAX_COLORS; ++i) | |
| 93 { | |
| 94 LDColor* info = ::getColor (i); | |
| 95 | |
| 96 if (!info) | |
| 97 continue; | |
| 98 | |
| 99 const double x = (i % numCols) * square; | |
| 100 const double y = (i / numCols) * square; | |
| 101 const double w = square - (penWidth / 2); | |
| 102 | |
| 103 QColor col = info->faceColor; | |
| 104 | |
| 105 if (i == maincolor) | |
| 106 { | |
| 107 // Use the user preferences for main color here | |
| 108 col = QColor (gl_maincolor); | |
| 109 col.setAlpha (gl_maincolor_alpha * 255.0f); | |
| 110 } | |
| 111 | |
| 112 QPen pen (info->edgeColor, penWidth, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin); | |
| 113 m_scene->addRect (x, y, w, w, pen, col); | |
| 114 QGraphicsTextItem* numtext = m_scene->addText (format ("%1", i)); | |
| 115 numtext->setDefaultTextColor ( (luma (col) < 80) ? Qt::white : Qt::black); | |
| 116 numtext->setPos (x, y); | |
| 117 | |
| 118 if (selection() && i == selection()->index) | |
| 119 { | |
| 120 auto curspic = m_scene->addPixmap (getIcon ("colorcursor")); | |
| 121 curspic->setPos (x, y); | |
| 122 } | |
| 123 } | |
| 124 } | |
| 125 | |
| 126 // ============================================================================= | |
| 127 // ============================================================================= | |
| 128 int ColorSelector::numRows() const | |
| 129 { | |
| 130 return (MAX_COLORS / g_numColumns); | |
| 131 } | |
| 132 | |
| 133 // ============================================================================= | |
| 134 // ============================================================================= | |
| 135 int ColorSelector::viewportWidth() const | |
| 136 { | |
| 137 return g_numColumns * g_squareSize + 21; | |
| 138 } | |
| 139 | |
| 140 // ============================================================================= | |
| 141 // ============================================================================= | |
| 142 void ColorSelector::drawColorInfo() | |
| 143 { | |
| 144 if (!selection()) | |
| 145 { | |
| 146 ui->colorLabel->setText ("---"); | |
| 147 return; | |
| 148 } | |
| 149 | |
| 150 ui->colorLabel->setText (format ("%1 - %2", selection()->index, selection()->name)); | |
| 151 } | |
| 152 | |
| 153 // ============================================================================= | |
| 154 // ============================================================================= | |
| 155 void ColorSelector::resizeEvent (QResizeEvent* ev) | |
| 156 { | |
| 157 // If this is the first resize, check if we need to scroll down to see the | |
| 158 // currently selected color. We cannot do this in the constructor because the | |
| 159 // height is not set properly there. | |
| 160 if (m_firstResize) | |
| 161 { | |
| 162 int visibleColors = (ui->viewport->height() / g_squareSize) * g_numColumns; | |
| 163 | |
| 164 if (selection() && selection()->index >= visibleColors) | |
| 165 { | |
| 166 int y = (selection()->index / g_numColumns) * g_squareSize; | |
| 167 ui->viewport->verticalScrollBar()->setValue (y); | |
| 168 } | |
| 169 | |
| 170 m_firstResize = false; | |
| 171 } | |
| 172 | |
| 173 (void) ev; | |
| 174 drawScene(); | |
| 175 } | |
| 176 | |
| 177 // ============================================================================= | |
| 178 // ============================================================================= | |
| 179 void ColorSelector::mousePressEvent (QMouseEvent* event) | |
| 180 { | |
| 181 QPointF scenepos = ui->viewport->mapToScene (event->pos()); | |
| 182 | |
| 183 int x = (scenepos.x() - (g_squareSize / 2)) / g_squareSize; | |
| 184 int y = (scenepos.y() - (g_squareSize / 2)) / g_squareSize; | |
| 185 int idx = (y * g_numColumns) + x; | |
| 186 | |
| 187 LDColor* col = ::getColor (idx); | |
| 188 | |
| 189 if (!col) | |
| 190 return; | |
| 191 | |
| 192 setSelection (col); | |
| 193 drawScene(); | |
| 194 drawColorInfo(); | |
| 195 } | |
| 196 | |
| 197 // ============================================================================= | |
| 198 // ============================================================================= | |
| 199 bool ColorSelector::selectColor (int& val, int defval, QWidget* parent) | |
| 200 { | |
| 201 ColorSelector dlg (defval, parent); | |
| 202 | |
| 203 if (dlg.exec() && dlg.selection() != null) | |
| 204 { | |
| 205 val = dlg.selection()->index; | |
| 206 return true; | |
| 207 } | |
| 208 | |
| 209 return false; | |
| 210 } |
