From c938afee2c84c02d6a5b9c799363441cff20ebf0 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Wed, 5 Oct 2016 05:31:38 -0400 Subject: Add play button to UI --- plugins/eg-sampler.lv2/sampler_ui.c | 58 +++++++++++++++++++++++++++++-------- 1 file changed, 46 insertions(+), 12 deletions(-) (limited to 'plugins/eg-sampler.lv2') diff --git a/plugins/eg-sampler.lv2/sampler_ui.c b/plugins/eg-sampler.lv2/sampler_ui.c index 5723223..9ea662c 100644 --- a/plugins/eg-sampler.lv2/sampler_ui.c +++ b/plugins/eg-sampler.lv2/sampler_ui.c @@ -47,7 +47,9 @@ typedef struct { LV2UI_Controller controller; GtkWidget* box; - GtkWidget* button; + GtkWidget* play_button; + GtkWidget* file_button; + GtkWidget* button_box; GtkWidget* canvas; GtkWidget* window; /* For optional show interface. */ @@ -78,6 +80,25 @@ on_file_set(GtkFileChooserButton* widget, void* handle) g_free(filename); } +static void +on_play_clicked(GtkFileChooserButton* widget, void* handle) +{ + SamplerUI* ui = (SamplerUI*)handle; + struct { + LV2_Atom atom; + uint8_t msg[3]; + } note_on; + + note_on.atom.type = ui->uris.midi_Event; + note_on.atom.size = 3; + note_on.msg[0] = LV2_MIDI_MSG_NOTE_ON; + note_on.msg[1] = 60; + note_on.msg[2] = 60; + ui->write(ui->controller, 0, sizeof(note_on), + ui->uris.atom_eventTransfer, + ¬e_on); +} + static void request_peaks(SamplerUI* ui, uint32_t n_peaks) { @@ -201,19 +222,27 @@ instantiate(const LV2UI_Descriptor* descriptor, peaks_receiver_init(&ui->precv, ui->map); // Construct Gtk UI - ui->box = gtk_vbox_new(FALSE, 4); - ui->button = gtk_file_chooser_button_new("Load Sample", GTK_FILE_CHOOSER_ACTION_OPEN); - ui->canvas = gtk_drawing_area_new(); + ui->box = gtk_vbox_new(FALSE, 4); + ui->play_button = gtk_button_new_with_label("▶"); + ui->canvas = gtk_drawing_area_new(); + ui->button_box = gtk_hbox_new(FALSE, 4); + ui->file_button = gtk_file_chooser_button_new( + "Load Sample", GTK_FILE_CHOOSER_ACTION_OPEN); gtk_widget_set_size_request(ui->canvas, MIN_CANVAS_W, MIN_CANVAS_H); gtk_container_set_border_width(GTK_CONTAINER(ui->box), 4); gtk_box_pack_start(GTK_BOX(ui->box), ui->canvas, TRUE, TRUE, 0); - gtk_box_pack_start(GTK_BOX(ui->box), ui->button, FALSE, TRUE, 0); - g_signal_connect(ui->button, "file-set", - G_CALLBACK(on_file_set), - ui); + gtk_box_pack_start(GTK_BOX(ui->box), ui->button_box, FALSE, TRUE, 0); + gtk_box_pack_start(GTK_BOX(ui->button_box), ui->play_button, FALSE, FALSE, 0); + gtk_box_pack_start(GTK_BOX(ui->button_box), ui->file_button, TRUE, TRUE, 0); + + g_signal_connect(ui->file_button, "file-set", + G_CALLBACK(on_file_set), ui); + + g_signal_connect(ui->play_button, "clicked", + G_CALLBACK(on_play_clicked), ui); + g_signal_connect(G_OBJECT(ui->canvas), "expose_event", - G_CALLBACK(on_canvas_expose), - ui); + G_CALLBACK(on_canvas_expose), ui); // Request state (filename) from plugin lv2_atom_forge_set_buffer(&ui->forge, ui->forge_buf, sizeof(ui->forge_buf)); @@ -235,7 +264,11 @@ static void cleanup(LV2UI_Handle handle) { SamplerUI* ui = (SamplerUI*)handle; - gtk_widget_destroy(ui->button); + gtk_widget_destroy(ui->box); + gtk_widget_destroy(ui->play_button); + gtk_widget_destroy(ui->canvas); + gtk_widget_destroy(ui->button_box); + gtk_widget_destroy(ui->file_button); free(ui); } @@ -256,7 +289,8 @@ port_event(LV2UI_Handle handle, if (path && (!ui->filename || strcmp(path, ui->filename))) { g_free(ui->filename); ui->filename = g_strdup(path); - gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(ui->button), path); + gtk_file_chooser_set_filename( + GTK_FILE_CHOOSER(ui->file_button), path); peaks_receiver_clear(&ui->precv); request_peaks(ui, ui->width / 2 * 2); } else if (!path) { -- cgit v1.2.1