/* * virtualkeyboard.c * * Copyright 2017 Richard Shann * * 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ #include "ui/virtualkeyboard.h" #include "core/view.h" #include "core/utils.h" #include "command/keyresponses.h" #if GTK_MAJOR_VERSION==2 void create_virtual_keyboard (void) { warningdialog (_("Virtual Keyboard requires Denemo to be built with GTK3 or higher")); } #else gboolean sharp_order[12] = { 0,1,0,1,0,0, // c cis d ees e f 1,0,1,0,1,0 // fis g gis a bes }; static gboolean noteon (GtkWidget *widget, GdkEventButton *event, gint key) { char buf[3] = {0x90, key, 0xFF}; //NOTEON gboolean right = (event->button == 3); if (right) { Denemo.keyboard_state |= (CHORD_MASK | ADDING_MASK); } else Denemo.keyboard_state &= ~(CHORD_MASK | ADDING_MASK); //if (Denemo.project->midi_destination & MIDIRECORD) handle_midi_event (buf); //else // process_midi_event (buf); return TRUE; } static gboolean noteoff (GtkWidget *widget, GdkEventButton *event, gint key) { char buf[3] = {0x80, key, 0xFF}; //NOTEOFF gboolean right = (event->button == 3); if (right) Denemo.keyboard_state &= ~(CHORD_MASK | ADDING_MASK); //if (Denemo.project->midi_destination & MIDIRECORD) handle_midi_event (buf); //else // process_midi_event (buf); //return TRUE; } static void connect_signals_to_eventbox (GtkWidget* eventbox, gint i) { gtk_widget_add_events (eventbox, (GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK )); gtk_widget_set_can_focus (eventbox, TRUE); g_signal_connect (G_OBJECT(eventbox), "button-press-event", G_CALLBACK (noteon), GINT_TO_POINTER(i)); g_signal_connect (G_OBJECT(eventbox), "button-release-event", G_CALLBACK (noteoff), GINT_TO_POINTER(i)); g_signal_connect (G_OBJECT(eventbox), "key-press-event", G_CALLBACK (scorearea_keypress_event), NULL); g_signal_connect (G_OBJECT(eventbox), "key-release-event", G_CALLBACK (scorearea_keyrelease_event), NULL); } static GtkWidget *sharp_button (gint i) { GtkWidget *eventbox = gtk_event_box_new (); GtkWidget *label = gtk_label_new (" \n \n \n"); gtk_container_add (GTK_CONTAINER(eventbox), label); connect_signals_to_eventbox (eventbox, i); set_background_color (label, "#000000"); gtk_widget_set_hexpand (label, TRUE); return eventbox; } static void add_label_to_eventbox (GtkWidget *eventbox, GtkWidget *label) { #if ((GTK_MAJOR_VERSION==3) && (GTK_MINOR_VERSION>=12)) gtk_container_add (GTK_CONTAINER(eventbox), label); gtk_widget_set_margin_end (GTK_WIDGET(label), 1); #else GtkWidget *box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 1); set_background_color (box, "#0000FF"); gtk_container_add (GTK_CONTAINER(eventbox), box); GtkWidget *sep = gtk_separator_new (GTK_ORIENTATION_VERTICAL); gtk_container_add (GTK_CONTAINER(box), sep); set_foreground_color (sep, "#000000"); gtk_container_add (GTK_CONTAINER(box), label); #endif } static GtkWidget *natural_button (gint i) { GtkWidget *eventbox = gtk_event_box_new (); GtkWidget *label = gtk_label_new (" \n \n \n"); set_background_color (label, "#FFFFFF"); gtk_widget_set_hexpand (label, TRUE); add_label_to_eventbox (eventbox, label); connect_signals_to_eventbox (eventbox, i); return eventbox; } static GtkWidget *natural_head (gint i) { GtkWidget *eventbox = gtk_event_box_new (); GtkWidget *label = i==60? gtk_label_new (" \n C \n") : ((i%12)==4)? gtk_label_new (" \n \n") : gtk_label_new (" \n \n"); set_background_color (label, "#FFFFFF"); gtk_widget_set_hexpand (label, TRUE); add_label_to_eventbox (eventbox, label); connect_signals_to_eventbox (eventbox, i); return eventbox; } static void add_sharps (GtkWidget *sharps, gint octave) { gint i; for (i=0;i<12; i++) { gtk_container_add (GTK_CONTAINER(sharps), sharp_order[i]? sharp_button(i + 12*octave):natural_button(i + 12*octave)); } } static void add_naturals (GtkWidget *sharps, gint octave) { gint i; for (i=0;i<12; i++) { if (!sharp_order[i]) gtk_container_add (GTK_CONTAINER(sharps), natural_head(i + 12*octave)); } } void create_virtual_keyboard (gint octaves) { GtkWidget *keyboard_window = gtk_window_new (GTK_WINDOW_TOPLEVEL); GtkWidget *keyboard = gtk_grid_new(); set_background_color (keyboard_window, "#000000"); gtk_window_set_title (GTK_WINDOW (keyboard_window), _("Virtual MIDI keyboard")); //gtk_window_set_decorated (GTK_WINDOW (keyboard_window), FALSE); gtk_window_set_default_size (GTK_WINDOW (keyboard_window), 800, 200); GtkAdjustment *hadj = gtk_adjustment_new (200.0, 0.0, 400.0, 0.0, 0.0, 0.0); GtkWidget *sw = gtk_scrolled_window_new (hadj , NULL); gtk_orientable_set_orientation ((GtkOrientable *)keyboard, GTK_ORIENTATION_HORIZONTAL); gint i; for (i=5-octaves/2;i<(5 + octaves - octaves/2);i++) { GtkWidget *sharps = gtk_grid_new(); GtkWidget *naturals = gtk_grid_new(); GtkWidget *octave = gtk_grid_new(); gtk_container_add (GTK_CONTAINER(keyboard), octave); gtk_orientable_set_orientation ((GtkOrientable *)octave, GTK_ORIENTATION_VERTICAL); gtk_container_add (GTK_CONTAINER(octave), sharps); gtk_orientable_set_orientation ((GtkOrientable *)sharps, GTK_ORIENTATION_HORIZONTAL); gtk_container_add (GTK_CONTAINER(octave), naturals); gtk_orientable_set_orientation ((GtkOrientable *)naturals, GTK_ORIENTATION_HORIZONTAL); add_sharps (sharps, i); add_naturals (naturals, i); } #if (GTK_MAJOR_VERSION==3 && GTK_MINOR_VERSION<8) gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (sw), keyboard); #else gtk_container_add (GTK_CONTAINER(sw), keyboard); #endif gtk_container_add (GTK_CONTAINER(keyboard_window), sw); gtk_widget_show_all (keyboard_window); gdouble lower, upper, page; lower = gtk_adjustment_get_lower (hadj); upper = gtk_adjustment_get_upper (hadj); page = gtk_adjustment_get_page_size (hadj); //g_print ("Lower ... %f %f %f\n", lower, upper, page); gtk_adjustment_set_value (hadj, (upper-page - lower)/2); } gboolean scorearea_mouseenter_event (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data) { // Implement mouse enter handling return FALSE; } gboolean scorearea_mouseleave_event (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data) { // Implement mouse leave handling return FALSE; } gboolean scorearea_mousemove_event (GtkWidget *widget, GdkEventMotion *event, gpointer user_data) { // Implement mouse move handling return FALSE; } #endif //GTK3 and above