push2: first somewhat operational versions of menus

6 files changed, 418 insertions, 12 deletions

diff --git a/libs/surfaces/push2/buttons.cc b/libs/surfaces/push2/buttons.cc
index 6925517f68..8e916d126f 100644
--- a/libs/surfaces/push2/buttons.cc
+++ b/libs/surfaces/push2/buttons.cc
@@ -193,7 +193,7 @@ Push2::build_maps ()
 	MAKE_WHITE_BUTTON_PRESS (Left, 44, &Push2::button_left);
 	MAKE_WHITE_BUTTON_PRESS (Repeat, 56, &Push2::button_repeat);
 	MAKE_WHITE_BUTTON (Accent, 57);
-	MAKE_WHITE_BUTTON (Scale, 58);
+	MAKE_WHITE_BUTTON_PRESS (Scale, 58, &Push2::button_scale_press);
 	MAKE_WHITE_BUTTON_PRESS (Layout, 31, &Push2::button_layout_press);
 	MAKE_WHITE_BUTTON (Note, 50);
 	MAKE_WHITE_BUTTON (Session, 51);
@@ -608,3 +608,23 @@ Push2::button_octave_up ()
 		build_pad_table ();
 	}
 }
+
+void
+Push2::button_layout_press ()
+{
+	if (percussion) {
+		set_percussive_mode (false);
+	} else {
+		set_percussive_mode (true);
+	}
+}
+
+void
+Push2::button_scale_press ()
+{
+	if (current_menu != scale_menu) {
+		show_scale_menu ();
+	} else {
+		cancel_menu ();
+	}
+}
diff --git a/libs/surfaces/push2/menu.cc b/libs/surfaces/push2/menu.cc
new file mode 100644
index 0000000000..583c0a235c
--- /dev/null
+++ b/libs/surfaces/push2/menu.cc
@@ -0,0 +1,218 @@
+/*
+	Copyright (C) 2016 Paul Davis
+
+	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 2 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, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <cairomm/context.h>
+#include <cairomm/surface.h>
+#include <pangomm/layout.h>
+
+#include "push2.h"
+#include "gui.h"
+
+using namespace ARDOUR;
+using namespace std;
+using namespace PBD;
+using namespace Glib;
+using namespace ArdourSurface;
+
+#include "i18n.h"
+#include "menu.h"
+
+Push2Menu::Push2Menu (Cairo::RefPtr<Cairo::Context> context)
+	: _dirty (true)
+{
+	Pango::FontDescription fd2 ("Sans 10");
+
+	{
+		Glib::RefPtr<Pango::Layout> throwaway = Pango::Layout::create (context);
+		throwaway->set_font_description (fd2);
+		throwaway->set_text (X_("Hg")); /* ascender + descender) */
+		int h, w;
+		throwaway->get_pixel_size (w, h);
+		baseline = h;
+		nrows = Push2::rows / baseline;
+	}
+
+	for (int n = 0; n < 8; ++n) {
+		columns[n].layout = Pango::Layout::create (context);
+		columns[n].layout->set_font_description (fd2);
+		columns[n].top = -1;
+		columns[n].active = -1;
+	}
+}
+
+void
+Push2Menu::fill_column (int col, vector<string> v)
+{
+	if (col < 0 || col > 7) {
+		return;
+	}
+
+	columns[col].text = v;
+
+	if (v.empty()) {
+		columns[col].active = -1;
+	} else {
+		columns[col].active = 0;
+	}
+
+	set_text (col, 0);
+
+	_dirty = true;
+}
+
+void
+Push2Menu::set_text (int col, int top_row)
+{
+	if (top_row > (int) columns[col].text.size() - nrows || top_row < 0) {
+		return;
+	}
+
+	if (top_row == columns[col].top) {
+		return;
+	}
+
+	vector<string>::iterator s = columns[col].text.begin();
+	s += top_row;
+
+	string rows;
+
+	while (true) {
+		rows += *s;
+		++s;
+		if (s != columns[col].text.end()) {
+			rows += '\n';
+		} else {
+			break;
+		}
+	}
+
+	columns[col].layout->set_text (rows);
+	columns[col].top = top_row;
+
+	_dirty = true;
+}
+
+void
+Push2Menu::scroll (int col, int dir)
+{
+	if (dir > 0) {
+		set_text (col, columns[col].top + 1);
+	} else {
+		set_text (col, columns[col].top - 1);
+	}
+}
+
+void
+Push2Menu::set_active (int col, int index)
+{
+	if (col < 0 || col > 7) {
+		return;
+	}
+
+	if (index < 0 || index > (int) columns[col].text.size()) {
+		return;
+	}
+
+	columns[col].active = index;
+
+	ActiveChanged (); /* emit signal */
+
+	_dirty = true;
+}
+
+void
+Push2Menu::step_active (int col, int dir)
+{
+	if (col < 0 || col > 7) {
+		return;
+	}
+
+	if (columns[col].text.empty()) {
+		return;
+	}
+
+
+	if (dir < 0) {
+		if (columns[col].active == -1) {
+			columns[col].active = 0;
+		} else {
+			columns[col].active = columns[col].active - 1;
+			if (columns[col].active < 0) {
+				columns[col].active = columns[col].text.size() - 1;
+			}
+		}
+	} else {
+		if (columns[col].active == -1) {
+			columns[col].active = 0;
+		} else {
+			columns[col].active = columns[col].active + 1;
+			if (columns[col].active >= (int) columns[col].text.size()) {
+				columns[col].active = 0;
+			}
+		}
+	}
+
+	if (columns[col].active < nrows/2) {
+		set_text (col, 0);
+	} else {
+		set_text (col, columns[col].active - (nrows/2) + 1);
+	}
+
+	_dirty = true;
+}
+
+int
+Push2Menu::get_active (int col)
+{
+	if (col < 0 || col > 7) {
+		return -1;
+	}
+
+	return columns[col].active;
+}
+
+void
+Push2Menu::redraw (Cairo::RefPtr<Cairo::Context> context) const
+{
+	for (int n = 0; n < 8; ++n) {
+
+		/* Active: move to column/now, draw background indicator
+		   for active row.
+		*/
+
+		const double x = 10.0 + (n * 120.0);
+		const double y = 2.0;
+
+		if (columns[n].active >= 0) {
+			int effective_row = columns[n].active - columns[n].top;
+			context->rectangle (x, y + (effective_row * baseline), 120.0, baseline);
+			context->set_source_rgb (1.0, 1.0, 1.0);
+			context->fill ();
+		}
+
+		/* now draw all the text, in one go */
+
+		context->move_to (x, y);
+		context->set_source_rgb (0.23, 0.0, 0.349);
+		columns[n].layout->update_from_cairo_context (context);
+		columns[n].layout->show_in_cairo_context (context);
+
+	}
+
+	_dirty = false;
+}
diff --git a/libs/surfaces/push2/menu.h b/libs/surfaces/push2/menu.h
new file mode 100644
index 0000000000..a76bba170d
--- /dev/null
+++ b/libs/surfaces/push2/menu.h
@@ -0,0 +1,66 @@
+/*
+    Copyright (C) 2016 Paul Davis
+
+    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 2 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, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __ardour_push2_menu_h__
+#define __ardour_push2_menu_h__
+
+#include <cairomm/context.h>
+#include <cairomm/surface.h>
+#include <pangomm/layout.h>
+
+#include "pbd/signals.h"
+
+namespace ArdourSurface {
+
+class Push2Menu {
+   public:
+	Push2Menu (Cairo::RefPtr<Cairo::Context>);
+
+	void redraw (Cairo::RefPtr<Cairo::Context>) const;
+	bool dirty () const { return _dirty; }
+
+	void fill_column (int col, std::vector<std::string>);
+	void set_active (int col, int index);
+	void step_active (int col, int dir);
+	int get_active (int col);
+
+	PBD::Signal0<void> ActiveChanged;
+	PBD::Signal0<void> Selected;
+
+   private:
+	struct Column {
+		std::vector<std::string> text;
+		Glib::RefPtr<Pango::Layout> layout;
+		int top;
+		int active;
+	};
+
+	Column  columns[8];
+
+	void scroll (int col, int dir);
+	void set_text (int col, int top);
+
+	int nrows;
+	double baseline;
+
+	mutable bool _dirty;
+};
+
+} // namespace
+
+#endif /* __ardour_push2_menu_h__ */
diff --git a/libs/surfaces/push2/push2.cc b/libs/surfaces/push2/push2.cc
index d4fe17bbd0..d2e4be3fde 100644
--- a/libs/surfaces/push2/push2.cc
+++ b/libs/surfaces/push2/push2.cc
@@ -44,6 +44,7 @@
 
 #include "push2.h"
 #include "gui.h"
+#include "menu.h"
 
 using namespace ARDOUR;
 using namespace std;
@@ -132,6 +133,8 @@ Push2::Push2 (ARDOUR::Session& s)
 	, _in_key (true)
 	, octave_shift (0)
 	, percussion (false)
+	, current_menu (0)
+	, drawn_menu (0)
 {
 	context = Cairo::Context::create (frame_buffer);
 	tc_clock_layout = Pango::Layout::create (context);
@@ -159,6 +162,7 @@ Push2::Push2 (ARDOUR::Session& s)
 
 	build_pad_table ();
 	build_maps ();
+	build_scale_menu ();
 
 	if (open ()) {
 		throw failed_constructor ();
@@ -340,7 +344,7 @@ Push2::init_buttons (bool startup)
 
 	ButtonID buttons[] = { Mute, Solo, Master, Up, Right, Left, Down, Note, Session, Mix, AddTrack, Delete, Undo,
 	                       Metronome, Shift, Select, Play, RecordEnable, Automate, Repeat, Note, Session, DoubleLoop,
-	                       Quantize, Duplicate, Browse, PageRight, PageLeft, OctaveUp, OctaveDown, Layout
+	                       Quantize, Duplicate, Browse, PageRight, PageLeft, OctaveUp, OctaveDown, Layout, Scale
 	};
 
 	for (size_t n = 0; n < sizeof (buttons) / sizeof (buttons[0]); ++n) {
@@ -376,7 +380,7 @@ Push2::init_buttons (bool startup)
 
 		ButtonID off_buttons[] = { TapTempo, Setup, User, Stop, Convert, New, FixedLength,
 		                           Fwd32ndT, Fwd32nd, Fwd16thT, Fwd16th, Fwd8thT, Fwd8th, Fwd4trT, Fwd4tr,
-		                           Accent, Scale, Note, Session,  };
+		                           Accent, Note, Session,  };
 
 		for (size_t n = 0; n < sizeof (off_buttons) / sizeof (off_buttons[0]); ++n) {
 			Button* b = id_button_map[off_buttons[n]];
@@ -516,6 +520,22 @@ Push2::redraw ()
 		}
 	}
 
+	if (current_menu) {
+		if (current_menu->dirty() || drawn_menu != current_menu) {
+			/* fill background */
+			context->set_source_rgb (0.764, 0.882, 0.882);
+			context->rectangle (0, 0, 960, 160);
+			context->fill ();
+			/* now menu */
+			current_menu->redraw (context);
+			drawn_menu = current_menu;
+			return true;
+		}
+		return false;
+	} else {
+		drawn_menu = 0;
+	}
+
 	if (session) {
 		framepos_t audible = session->audible_frame();
 		Timecode::Time TC;
@@ -1492,6 +1512,11 @@ Push2::mute_change (int n)
 void
 Push2::strip_vpot (int n, int delta)
 {
+	if (current_menu) {
+		current_menu->step_active (n, delta);
+		return;
+	}
+
 	if (stripable[n]) {
 		boost::shared_ptr<AutomationControl> ac = stripable[n]->gain_control();
 		if (ac) {
@@ -1503,6 +1528,10 @@ Push2::strip_vpot (int n, int delta)
 void
 Push2::strip_vpot_touch (int n, bool touching)
 {
+	if (current_menu) {
+		return;
+	}
+
 	if (stripable[n]) {
 		boost::shared_ptr<AutomationControl> ac = stripable[n]->gain_control();
 		if (ac) {
@@ -1977,11 +2006,71 @@ Push2::set_percussive_mode (bool yn)
 }
 
 void
-Push2::button_layout_press ()
+Push2::set_menu (Push2Menu* m)
 {
-	if (percussion) {
-		set_percussive_mode (false);
-	} else {
-		set_percussive_mode (true);
-	}
+	current_menu = m;
+	drawn_menu = 0;
+}
+
+void
+Push2::build_scale_menu ()
+{
+	vector<string> v;
+
+	scale_menu = new Push2Menu (context);
+
+	v.push_back ("Dorian");
+	v.push_back ("IonianMajor");
+	v.push_back ("Minor");
+	v.push_back ("HarmonicMinor");
+	v.push_back ("MelodicMinorAscending");
+	v.push_back ("MelodicMinorDescending");
+	v.push_back ("Phrygian");
+	v.push_back ("Lydian");
+	v.push_back ("Mixolydian");
+	v.push_back ("Aeolian");
+	v.push_back ("Locrian");
+	v.push_back ("PentatonicMajor");
+	v.push_back ("PentatonicMinor");
+	v.push_back ("Chromatic");
+	v.push_back ("BluesScale");
+	v.push_back ("NeapolitanMinor");
+	v.push_back ("NeapolitanMajor");
+	v.push_back ("Oriental");
+	v.push_back ("DoubleHarmonic");
+	v.push_back ("Enigmatic");
+	v.push_back ("Hirajoshi");
+	v.push_back ("HungarianMinor");
+	v.push_back ("HungarianMajor");
+	v.push_back ("Kumoi");
+	v.push_back ("Iwato");
+	v.push_back ("Hindu");
+	v.push_back ("Spanish8Tone");
+	v.push_back ("Pelog");
+	v.push_back ("HungarianGypsy");
+	v.push_back ("Overtone");
+	v.push_back ("LeadingWholeTone");
+	v.push_back ("Arabian");
+	v.push_back ("Balinese");
+	v.push_back ("Gypsy");
+	v.push_back ("Mohammedan");
+	v.push_back ("Javanese");
+	v.push_back ("Persian");
+	v.push_back ("Algeria");
+
+	scale_menu->fill_column (0, v);
+
+	v.clear ();
+}
+
+void
+Push2::show_scale_menu ()
+{
+	set_menu (scale_menu);
+}
+
+void
+Push2::cancel_menu ()
+{
+	set_menu (0);
 }
diff --git a/libs/surfaces/push2/push2.h b/libs/surfaces/push2/push2.h
index d1655d1d60..4ced88b67f 100644
--- a/libs/surfaces/push2/push2.h
+++ b/libs/surfaces/push2/push2.h
@@ -71,6 +71,7 @@ public:
 };
 
 class P2GUI;
+class Push2Menu;
 
 class Push2 : public ARDOUR::ControlProtocol
             , public AbstractUI<Push2Request>
@@ -107,6 +108,9 @@ class Push2 : public ARDOUR::ControlProtocol
 	int root_octave() const { return _root_octave; }
 	bool in_key() const { return _in_key; }
 
+	static const int cols;
+	static const int rows;
+
   private:
 	libusb_device_handle *handle;
 	uint8_t   frame_header[16];
@@ -124,8 +128,6 @@ class Push2 : public ARDOUR::ControlProtocol
 
 	ModifierState modifier_state;
 
-	static const int cols;
-	static const int rows;
 	static const int pixels_per_row;
 
 	void do_request (Push2Request*);
@@ -460,6 +462,7 @@ class Push2 : public ARDOUR::ControlProtocol
 	void button_octave_up ();
 	void button_octave_down ();
 	void button_layout_press ();
+	void button_scale_press ();
 
 	void start_shift ();
 	void end_shift ();
@@ -536,8 +539,17 @@ class Push2 : public ARDOUR::ControlProtocol
 
 	bool percussion;
 	void set_percussive_mode (bool);
-};
 
+	/* menus */
+	Push2Menu* current_menu;
+	Push2Menu* drawn_menu;
+	Push2Menu* scale_menu;
+
+	void build_scale_menu ();
+	void set_menu (Push2Menu*);
+	void show_scale_menu ();
+	void cancel_menu ();
+};
 
 } /* namespace */
 
diff --git a/libs/surfaces/push2/wscript b/libs/surfaces/push2/wscript
index b69d4a22ce..409311e0f5 100644
--- a/libs/surfaces/push2/wscript
+++ b/libs/surfaces/push2/wscript
@@ -27,6 +27,7 @@ def build(bld):
             leds.cc
 	    gui.cc
 	    mode.cc
+	    menu.cc
     '''
     obj.export_includes = ['.']
     obj.defines      = [ 'PACKAGE="ardour_push2"' ]