src/colorSelectDialog.cpp

changeset 183
f1b8cb53d2a2
child 189
ac2d3e8dd110
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/colorSelectDialog.cpp	Wed May 08 15:19:06 2013 +0300
@@ -0,0 +1,179 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013 Santeri Piippo
+ *  
+ *  This program 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 3 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "common.h"
+#include "gui.h"
+#include <qgraphicsscene.h>
+#include <qgraphicsview.h>
+#include <qicon.h>
+#include <qboxlayout.h>
+#include <qgraphicsitem.h>
+#include <qevent.h>
+#include <qscrollbar.h>
+#include "colorSelectDialog.h"
+#include "colors.h"
+#include "config.h"
+#include "misc.h"
+
+static const short g_dNumColumns = 8;
+static const short g_dNumRows = 10;
+static const short g_dSquareSize = 32;
+static const long g_lWidth = (g_dNumColumns * g_dSquareSize);
+static const long g_lHeight = (g_dNumRows * g_dSquareSize);
+static const long g_lMaxHeight = ((MAX_COLORS / g_dNumColumns) * g_dSquareSize);
+
+extern_cfg (str, gl_maincolor);
+extern_cfg (float, gl_maincolor_alpha);
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+ColorSelectDialog::ColorSelectDialog (short int defval, QWidget* parent) : QDialog (parent) {
+	// Remove the default color if it's invalid
+	if (!getColor (defval))
+		defval = -1;
+	
+	gs_scene = new QGraphicsScene;
+	gv_view = new QGraphicsView (gs_scene);
+	selColor = defval;
+	
+	// not really an icon but eh
+	gs_scene->setBackgroundBrush (getIcon ("checkerboard"));
+	
+	gs_scene->setSceneRect (0, 0, g_lWidth, g_lMaxHeight);
+	gv_view->setSceneRect (0, 0, g_lWidth, g_lMaxHeight);
+	
+	drawScene ();
+	
+	IMPLEMENT_DIALOG_BUTTONS
+	
+	// Set the size of the view
+	const long lWidth = g_lWidth + 21; // HACK
+	gv_view->setMaximumWidth (lWidth);
+	gv_view->setMinimumWidth (lWidth);
+	gv_view->setMaximumHeight (g_lHeight);
+	gv_view->setMinimumHeight (g_lHeight);
+	gv_view->setHorizontalScrollBarPolicy (Qt::ScrollBarAlwaysOff);
+	
+	// If we have a default color selected, scroll down so that it is visible.
+	// TODO: find a better way to do this
+	if (defval >= ((g_dNumColumns * g_dNumRows) - 2)) {
+		ulong ulNewY = ((defval / g_dNumColumns) - 3) * g_dSquareSize;
+		gv_view->verticalScrollBar ()->setSliderPosition (ulNewY);
+	}
+	
+	lb_colorInfo = new QLabel;
+	drawColorInfo ();
+	
+	QVBoxLayout* qLayout = new QVBoxLayout;
+	qLayout->addWidget (gv_view);
+	qLayout->addWidget (lb_colorInfo);
+	qLayout->addWidget (bbx_buttons);
+	setLayout (qLayout);
+	
+	setWindowIcon (getIcon ("palette"));
+	setWindowTitle (APPNAME);
+}
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+void ColorSelectDialog::drawScene () {
+	const double fPenWidth = 1.0f;
+	QPen qPen (Qt::black, fPenWidth, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
+	
+	// Draw the color rectangles.
+	gs_scene->clear ();
+	for (short i = 0; i < MAX_COLORS; ++i) {
+		color* meta = getColor (i);
+		if (!meta)
+			continue;
+		
+		const double x = (i % g_dNumColumns) * g_dSquareSize;
+		const double y = (i / g_dNumColumns) * g_dSquareSize;
+		const double w = (g_dSquareSize) - (fPenWidth / 2);
+		
+		QColor col = meta->qColor;
+		
+		if (i == maincolor) {
+			// Use the user preferences for main color here
+			col = gl_maincolor.value.chars ();
+			col.setAlpha (gl_maincolor_alpha * 255.0f);
+		}
+		
+		bool dark = (luma (col) < 80);
+		
+		gs_scene->addRect (x, y, w, w, qPen, col);
+		QGraphicsTextItem* qText = gs_scene->addText (fmt ("%lu", i).chars());
+		qText->setDefaultTextColor ((dark) ? Qt::white : Qt::black);
+		qText->setPos (x, y);
+		
+		if (i == selColor) {
+			auto curspic = gs_scene->addPixmap (getIcon ("colorcursor"));
+			curspic->setPos (x, y);
+		}
+	}
+}
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+void ColorSelectDialog::drawColorInfo () {
+	color* col = getColor (selColor);
+	
+	if (selColor == -1 || !col) {
+		lb_colorInfo->setText ("---");
+		return;
+	}
+	
+	lb_colorInfo->setText (fmt ("%d - %s",
+		selColor, col->zName.chars()));
+}
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+void ColorSelectDialog::mousePressEvent (QMouseEvent* event) {
+	QPointF qPoint = gv_view->mapToScene (event->pos ());
+	
+	ulong x = ((ulong)qPoint.x () - (g_dSquareSize / 2)) / g_dSquareSize;
+	ulong y = ((ulong)qPoint.y () - (g_dSquareSize / 2)) / g_dSquareSize;
+	ulong idx = (y * g_dNumColumns) + x;
+	
+	color* col = getColor (idx);
+	if (!col)
+		return;
+	
+	selColor = idx;
+	drawScene ();
+	drawColorInfo ();
+}
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+bool ColorSelectDialog::staticDialog (short& val, short int defval, QWidget* parent) {
+	ColorSelectDialog dlg (defval, parent);
+	
+	if (dlg.exec () && dlg.selColor != -1) {
+		val = dlg.selColor;
+		return true;
+	}
+	
+	return false;
+}
\ No newline at end of file

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