From 28e33a32c35775f73fe6fce4049ff76cc198c0ae Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@windfisch.org>
Date: Fri, 22 Apr 2011 12:54:22 +0000
Subject: the user can now set pixels_per_whole

---
 muse2/muse/midiedit/scoreedit.cpp | 29 +++++++++++++++++++++++++++--
 muse2/muse/midiedit/scoreedit.h   |  5 ++++-
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/muse2/muse/midiedit/scoreedit.cpp b/muse2/muse/midiedit/scoreedit.cpp
index 143daac5..641f3b5f 100644
--- a/muse2/muse/midiedit/scoreedit.cpp
+++ b/muse2/muse/midiedit/scoreedit.cpp
@@ -247,6 +247,14 @@ ScoreEdit::ScoreEdit(PartList* pl, QWidget* parent, const char* name, unsigned i
 	quant_len_toolbar->addWidget(quant_combobox);
 	quant_combobox->setCurrentIndex(2);
 	
+	quant_len_toolbar->addWidget(new QLabel(tr("Pixels per whole:"), quant_len_toolbar));
+	QSpinBox* px_per_whole_spinbox = new QSpinBox(this);
+	px_per_whole_spinbox->setRange(10, 1000);
+	px_per_whole_spinbox->setSingleStep(50);
+	connect(px_per_whole_spinbox, SIGNAL(valueChanged(int)), score_canvas, SLOT(set_pixels_per_whole(int)));
+	connect(score_canvas, SIGNAL(pixels_per_whole_changed(int)), px_per_whole_spinbox, SLOT(setValue(int)));
+	quant_len_toolbar->addWidget(px_per_whole_spinbox);
+	px_per_whole_spinbox->setValue(300);
 
 	QMenu* settings_menu = menuBar()->addMenu(tr("&Settings"));      
 
@@ -492,6 +500,7 @@ ScoreCanvas::ScoreCanvas(MidiEditor* pr, QWidget* parent_widget,
 	set_quant(2); //this is actually unneccessary, as while
 	              //initalizing the quant_combobox, this gets
 	              //called again. but for safety...
+	set_pixels_per_whole(300); //same as above. but safety rocks
 
 	dragging_staff=false;
 	
@@ -3215,7 +3224,11 @@ void ScoreCanvas::set_quant(int val)
 
 	if ((val>=0) && (val<signed(sizeof(quant_mapper)/sizeof(*quant_mapper))))
 	{
+		int old_len=quant_len();
+
 		_quant_power2=quant_mapper[val];
+		
+		set_pixels_per_whole(pixels_per_whole() * quant_len() / old_len );
 
 		song_changed(SC_EVENT_INSERTED);
 	}
@@ -3225,6 +3238,19 @@ void ScoreCanvas::set_quant(int val)
 	}
 }
 
+void ScoreCanvas::set_pixels_per_whole(int val)
+{
+	cout << "DEBUG: setting px per whole to " << val << endl;
+	_pixels_per_whole=val;
+	
+	for (list<staff_t>::iterator it=staves.begin(); it!=staves.end(); it++)
+		it->calc_item_pos();
+	
+	emit pixels_per_whole_changed(val);
+	
+	redraw();
+}
+
 void ScoreCanvas::cleanup_staves()
 {
 	for (list<staff_t>::iterator it=staves.begin(); it!=staves.end();)
@@ -3307,10 +3333,9 @@ bool staff_t::cleanup_parts()
  *     the problem is: there's always the first part selected
  * 
  * CURRENT TODO
- *   o automatically set x-raster (by quant. strength)
+ *   o let the user select the currently edited part
  * 
  * IMPORTANT TODO
- *   o let the user select the currently edited part
  *   o support selections
  *   o check if "moving away" works for whole notes [seems to NOT work properly]
  *
diff --git a/muse2/muse/midiedit/scoreedit.h b/muse2/muse/midiedit/scoreedit.h
index f512f7a0..2c7cdaf0 100644
--- a/muse2/muse/midiedit/scoreedit.h
+++ b/muse2/muse/midiedit/scoreedit.h
@@ -544,6 +544,7 @@ class ScoreCanvas : public View
 		
 // member variables ---------------------------------------------------
 		int _quant_power2;
+		int _pixels_per_whole;
 		
 		std::map<int,int> pos_add_list;
 		
@@ -632,6 +633,7 @@ class ScoreCanvas : public View
 			void menu_command(int);
 			void preamble_keysig_slot(bool);
 			void preamble_timesig_slot(bool);
+			void set_pixels_per_whole(int);
 	
 	signals:
 			void xscroll_changed(int);
@@ -640,6 +642,7 @@ class ScoreCanvas : public View
 			void canvas_width_changed(int);
 			void viewport_height_changed(int);
 			void canvas_height_changed(int);
+			void pixels_per_whole_changed(int);
 			
 	protected:
 		virtual void draw(QPainter& p, const QRect& rect);
@@ -664,7 +667,7 @@ class ScoreCanvas : public View
 		int quant_power2() { return _quant_power2; }
 		int quant_len() { return (1<<_quant_power2); }
 		int quant_ticks() { return TICKS_PER_WHOLE / (1<<_quant_power2); }
-		int pixels_per_whole() { return 320; } //TODO FINDMICHJETZT
+		int pixels_per_whole() { return _pixels_per_whole; }
 		int note_x_indent() { return pixels_per_whole()/quant_len()/2; }
 };
 
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