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drmr2/drmr_ui.c

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/* drmr.c
* LV2 DrMr plugin
* Copyright 2012 Nick Lanham <nick@afternight.org>
*
* Public License v3. source code is available at
* <http://github.com/nicklan/drmr>
* THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <gtk/gtk.h>
#include "drmr.h"
#include "drmr_hydrogen.h"
#include "nknob.h"
#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
#include "lv2/lv2plug.in/ns/ext/atom/util.h"
#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
#include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
#define DRMR_UI_URI "http://github.com/nicklan/drmr#ui"
typedef struct {
LV2UI_Write_Function write;
LV2UI_Controller controller;
LV2_Atom_Forge forge;
LV2_URID_Map *map;
drmr_uris uris;
GtkWidget *drmr_widget;
GtkTable *sample_table;
GtkComboBox *kit_combo;
GtkWidget *no_kit_label;
GtkSpinButton *base_spin;
GtkLabel *base_label;
GtkListStore *kit_store;
GtkWidget** gain_sliders;
GtkWidget** pan_sliders;
float *gain_vals,*pan_vals;
gchar *bundle_path;
int cols;
int startSamp;
gboolean forceUpdate;
int samples;
GQuark gain_quark, pan_quark;
int curKit;
int kitReq;
kits* kits;
} DrMrUi;
static gboolean gain_callback(GtkRange* range, GtkScrollType type, gdouble value, gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
int gidx = GPOINTER_TO_INT(g_object_get_qdata(G_OBJECT(range),ui->gain_quark));
float gain = (float)value;
ui->gain_vals[gidx] = gain;
ui->write(ui->controller,gidx+DRMR_GAIN_ONE,4,0,&gain);
return FALSE;
}
static gboolean pan_callback(GtkRange* range, GtkScrollType type, gdouble value, gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
int pidx = GPOINTER_TO_INT(g_object_get_qdata(G_OBJECT(range),ui->pan_quark));
float pan = (float)value;
ui->pan_vals[pidx] = pan;
ui->write(ui->controller,pidx+DRMR_PAN_ONE,4,0,&pan);
return FALSE;
}
static void fill_sample_table(DrMrUi* ui, int samples, char** names,GtkWidget** gain_sliders, GtkWidget** pan_sliders) {
int row = 0;
int col = 0;
int si;
gchar buf[64];
int rows = (samples/ui->cols);
if (samples % ui->cols != 0) rows++;
gtk_table_resize(ui->sample_table,rows,ui->cols);
switch (ui->startSamp) {
case 1: // bottom left
row = rows-1;
break;
case 2: // top right
col = ui->cols-1;
break;
case 3: // bottom right
row = rows-1;
col = ui->cols-1;
break;
}
for(si = 0;si<samples;si++) {
GtkWidget *frame,*hbox,*gain_vbox,*pan_vbox;
GtkWidget* gain_slider;
GtkWidget* pan_slider;
GtkWidget* gain_label;
GtkWidget* pan_label;
gboolean slide_expand;
snprintf(buf,64,"<b>%s</b> (%i)",names[si],si);
frame = gtk_frame_new(buf);
gtk_label_set_use_markup(GTK_LABEL(gtk_frame_get_label_widget(GTK_FRAME(frame))),true);
gtk_frame_set_shadow_type(GTK_FRAME(frame),GTK_SHADOW_OUT);
hbox = gtk_hbox_new(false,0);
#ifdef NO_NKNOB
gain_slider = gtk_vscale_new_with_range(GAIN_MIN,6.0,1.0);
gtk_scale_set_value_pos(GTK_SCALE(gain_slider),GTK_POS_BOTTOM);
gtk_scale_set_digits(GTK_SCALE(gain_slider),1);
gtk_scale_add_mark(GTK_SCALE(gain_slider),0.0,GTK_POS_RIGHT,"0 dB");
// Hrmm, -inf label is at top in ardour for some reason
//gtk_scale_add_mark(GTK_SCALE(gain_slider),GAIN_MIN,GTK_POS_RIGHT,"-inf");
gtk_range_set_inverted(GTK_RANGE(gain_slider),true);
slide_expand = true;
#else
gain_slider = n_knob_new_with_range(0.0,GAIN_MIN,6.0,1.0);
n_knob_set_load_prefix(N_KNOB(gain_slider),ui->bundle_path);
gtk_widget_set_has_tooltip(gain_slider,TRUE);
slide_expand = false;
#endif
g_object_set_qdata (G_OBJECT(gain_slider),ui->gain_quark,GINT_TO_POINTER(si));
if (gain_sliders) gain_sliders[si] = gain_slider;
if (si < 32)
gtk_range_set_value(GTK_RANGE(gain_slider),ui->gain_vals[si]);
else // things are gross if we have > 32 samples, what to do?
gtk_range_set_value(GTK_RANGE(gain_slider),0.0);
g_signal_connect(G_OBJECT(gain_slider),"change-value",G_CALLBACK(gain_callback),ui);
gain_label = gtk_label_new("Gain");
gain_vbox = gtk_vbox_new(false,0);
#ifdef NO_NKNOB
pan_slider = gtk_hscale_new_with_range(-1.0,1.0,0.1);
gtk_scale_add_mark(GTK_SCALE(pan_slider),0.0,GTK_POS_TOP,NULL);
#else
pan_slider = n_knob_new_with_range(0.0,-1.0,1.0,0.1);
n_knob_set_load_prefix(N_KNOB(pan_slider),ui->bundle_path);
gtk_widget_set_has_tooltip(pan_slider,TRUE);
#endif
if (pan_sliders) pan_sliders[si] = pan_slider;
if (si < 32)
gtk_range_set_value(GTK_RANGE(pan_slider),ui->pan_vals[si]);
else
gtk_range_set_value(GTK_RANGE(pan_slider),0);
g_object_set_qdata (G_OBJECT(pan_slider),ui->pan_quark,GINT_TO_POINTER(si));
g_signal_connect(G_OBJECT(pan_slider),"change-value",G_CALLBACK(pan_callback),ui);
pan_label = gtk_label_new("Pan");
pan_vbox = gtk_vbox_new(false,0);
gtk_box_pack_start(GTK_BOX(gain_vbox),gain_slider,slide_expand,slide_expand,0);
gtk_box_pack_start(GTK_BOX(gain_vbox),gain_label,false,false,0);
gtk_box_pack_start(GTK_BOX(pan_vbox),pan_slider,slide_expand,slide_expand,0);
gtk_box_pack_start(GTK_BOX(pan_vbox),pan_label,false,false,0);
gtk_box_pack_start(GTK_BOX(hbox),gain_vbox,true,true,0);
gtk_box_pack_start(GTK_BOX(hbox),pan_vbox,true,true,0);
gtk_container_add(GTK_CONTAINER(frame),hbox);
gtk_table_attach_defaults(ui->sample_table,frame,col,col+1,row,row+1);
if (ui->startSamp > 1) {
col--;
if (col < 0) {
if (ui->startSamp == 2)
row++;
else
row--;
col = ui->cols-1;
}
}
else {
col++;
if (col >= ui->cols) {
if (ui->startSamp == 0)
row++;
else
row--;
col = 0;
}
}
}
gtk_widget_queue_resize(GTK_WIDGET(ui->sample_table));
}
static const char* nstrs = "C C#D D#E F F#G G#A A#B ";
static char baseLabelBuf[32];
static void setBaseLabel(int noteIdx) {
int oct = (noteIdx/12)-1;
int nmt = (noteIdx%12)*2;
snprintf(baseLabelBuf,32,"Midi Base Note <b>(%c%c%i)</b>:",
nstrs[nmt],nstrs[nmt+1],oct);
}
static void base_changed(GtkSpinButton *base_spin, gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
float base = (float)gtk_spin_button_get_value(base_spin);
if (base >= 21.0f && base <= 107.0f) {
setBaseLabel((int)base);
ui->write(ui->controller,DRMR_BASENOTE,4,0,&base);
gtk_label_set_markup(ui->base_label,baseLabelBuf);
}
else
fprintf(stderr,"Base spin got out of range: %f\n",base);
}
static void fill_kit_combo(GtkComboBox* combo, kits* kits) {
int i;
GtkTreeIter iter;
GtkListStore *store = GTK_LIST_STORE(gtk_combo_box_get_model(combo));
for (i=0;i<kits->num_kits;i++) {
gtk_list_store_append (store, &iter);
gtk_list_store_set(store, &iter, 0, kits->kits[i].name, -1);
}
}
static gboolean idle = FALSE;
static gboolean kit_callback(gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
if (ui->forceUpdate || (ui->kitReq != ui->curKit)) {
ui->forceUpdate = false;
int samples = (ui->kitReq<ui->kits->num_kits && ui->kitReq >= 0)?
ui->kits->kits[ui->kitReq].samples:
0;
GtkWidget** gain_sliders;
GtkWidget** pan_sliders;
if (ui->sample_table) {
gain_sliders = ui->gain_sliders;
pan_sliders = ui->pan_sliders;
ui->gain_sliders = NULL;
ui->pan_sliders = NULL;
if (gain_sliders) free(gain_sliders);
if (pan_sliders) free(pan_sliders);
gtk_widget_destroy(GTK_WIDGET(ui->sample_table));
ui->sample_table = NULL;
}
if (samples > 0) {
ui->sample_table = GTK_TABLE(gtk_table_new(1,1,true));
gtk_table_set_col_spacings(ui->sample_table,5);
gtk_table_set_row_spacings(ui->sample_table,5);
gain_sliders = malloc(samples*sizeof(GtkWidget*));
pan_sliders = malloc(samples*sizeof(GtkWidget*));
fill_sample_table(ui,samples,ui->kits->kits[ui->kitReq].sample_names,gain_sliders,pan_sliders);
gtk_box_pack_start(GTK_BOX(ui->drmr_widget),GTK_WIDGET(ui->sample_table),
true,true,5);
gtk_box_reorder_child(GTK_BOX(ui->drmr_widget),GTK_WIDGET(ui->sample_table),0);
gtk_widget_show_all(GTK_WIDGET(ui->sample_table));
ui->samples = samples;
ui->gain_sliders = gain_sliders;
ui->pan_sliders = pan_sliders;
ui->curKit = ui->kitReq;
gtk_combo_box_set_active(ui->kit_combo,ui->curKit);
gtk_widget_show(GTK_WIDGET(ui->kit_combo));
gtk_widget_hide(ui->no_kit_label);
} else {
gtk_widget_show(ui->no_kit_label);
gtk_widget_hide(GTK_WIDGET(ui->kit_combo));
}
}
idle = FALSE;
return FALSE; // don't keep calling
}
static LV2_Atom* build_path_message(DrMrUi *ui, const char* path) {
LV2_Atom_Forge_Frame set_frame;
LV2_Atom* msg = (LV2_Atom*)lv2_atom_forge_resource
(&ui->forge, &set_frame, 1, ui->uris.ui_msg);
lv2_atom_forge_property_head(&ui->forge, ui->uris.kit_path,0);
lv2_atom_forge_path(&ui->forge, path, strlen(path));
lv2_atom_forge_pop(&ui->forge,&set_frame);
return msg;
}
static void kit_combobox_changed(GtkComboBox* box, gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
gint new_kit = gtk_combo_box_get_active (GTK_COMBO_BOX(box));
if (ui->curKit != new_kit) {
uint8_t msg_buf[1024];
lv2_atom_forge_set_buffer(&ui->forge, msg_buf, 1024);
LV2_Atom *msg = build_path_message(ui,ui->kits->kits[new_kit].path);
ui->write(ui->controller,DRMR_CONTROL,
lv2_atom_total_size(msg),
ui->uris.atom_eventTransfer,
msg);
}
/* Call our update func after 100 milliseconds.
*
* This is a hack to deal with hosts that don't send
* back port_events properly after the write function.
* In particular, qtractor doesn't, at the moment.
*/
ui->kitReq = new_kit;
g_timeout_add(100,kit_callback,ui);
}
static void position_combobox_changed(GtkComboBox* box, gpointer data) {
DrMrUi* ui = (DrMrUi*)data;
gint ss = gtk_combo_box_get_active (GTK_COMBO_BOX(box));
if (ss != ui->startSamp) {
ui->startSamp = ss;
ui->forceUpdate = true;
kit_callback(ui);
}
}
static GtkWidget *create_position_combo(void)
{
GtkWidget *combo;
GtkListStore *list_store;
GtkCellRenderer *cell;
GtkTreeIter iter;
list_store = gtk_list_store_new(1, G_TYPE_STRING);
gtk_list_store_append(list_store, &iter);
gtk_list_store_set (list_store, &iter, 0, "Top Left", -1);
gtk_list_store_append(list_store, &iter);
gtk_list_store_set (list_store, &iter, 0, "Bottom Left", -1);
gtk_list_store_append(list_store, &iter);
gtk_list_store_set (list_store, &iter, 0, "Top Right", -1);
gtk_list_store_append(list_store, &iter);
gtk_list_store_set (list_store, &iter, 0, "Bottom Right", -1);
combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(list_store));
#ifdef DRMR_UI_ZERO_SAMP
gtk_combo_box_set_active(GTK_COMBO_BOX(combo),DRMR_UI_ZERO_SAMP);
#else
gtk_combo_box_set_active(GTK_COMBO_BOX(combo),0);
#endif
g_object_unref(list_store);
cell = gtk_cell_renderer_text_new();
gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), cell, TRUE);
gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), cell, "text", 0, NULL);
return combo;
}
static void build_drmr_ui(DrMrUi* ui) {
GtkWidget *drmr_ui_widget;
GtkWidget *opts_hbox1, *opts_hbox2,
*kit_combo_box, *kit_label, *no_kit_label,
*base_label, *base_spin, *position_label, *position_combo_box;
GtkCellRenderer *cell_rend;
GtkAdjustment *base_adj;
drmr_ui_widget = gtk_vbox_new(false,0);
g_object_set(drmr_ui_widget,"border-width",6,NULL);
ui->kit_store = gtk_list_store_new(1,G_TYPE_STRING);
opts_hbox1 = gtk_hbox_new(false,0);
opts_hbox2 = gtk_hbox_new(false,0);
kit_combo_box = gtk_combo_box_new_with_model(GTK_TREE_MODEL(ui->kit_store));
kit_label = gtk_label_new("Kit:");
no_kit_label = gtk_label_new("<b>No/Invalid Kit Selected</b>");
gtk_label_set_use_markup(GTK_LABEL(no_kit_label),true);
cell_rend = gtk_cell_renderer_text_new();
gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(kit_combo_box), cell_rend, true);
gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(kit_combo_box), cell_rend,"text",0,NULL);
base_label = gtk_label_new("Midi Base Note <b>(C 2)</b>:");
gtk_label_set_use_markup(GTK_LABEL(base_label),true);
base_adj = GTK_ADJUSTMENT
(gtk_adjustment_new(36.0, // val
21.0,107.0, // min/max
1.0, // step
5.0,0.0)); // page adj/size
base_spin = gtk_spin_button_new(base_adj, 1.0, 0);
position_label = gtk_label_new("Sample Zero Position: ");
position_combo_box = create_position_combo();
gtk_box_pack_start(GTK_BOX(opts_hbox1),kit_label,
false,false,15);
gtk_box_pack_start(GTK_BOX(opts_hbox1),no_kit_label,
true,true,0);
gtk_box_pack_start(GTK_BOX(opts_hbox1),kit_combo_box,
true,true,0);
gtk_box_pack_start(GTK_BOX(opts_hbox1),base_label,
false,false,15);
gtk_box_pack_start(GTK_BOX(opts_hbox1),base_spin,
true,true,0);
gtk_box_pack_start(GTK_BOX(opts_hbox2),position_label,
false,false,15);
gtk_box_pack_start(GTK_BOX(opts_hbox2),position_combo_box,
false,false,0);
gtk_box_pack_start(GTK_BOX(drmr_ui_widget),gtk_hseparator_new(),
false,false,5);
gtk_box_pack_start(GTK_BOX(drmr_ui_widget),opts_hbox1,
false,false,5);
gtk_box_pack_start(GTK_BOX(drmr_ui_widget),opts_hbox2,
false,false,5);
ui->drmr_widget = drmr_ui_widget;
ui->sample_table = NULL;
ui->kit_combo = GTK_COMBO_BOX(kit_combo_box);
ui->base_label = GTK_LABEL(base_label);
ui->base_spin = GTK_SPIN_BUTTON(base_spin);
ui->no_kit_label = no_kit_label;
g_signal_connect(G_OBJECT(kit_combo_box),"changed",G_CALLBACK(kit_combobox_changed),ui);
g_signal_connect(G_OBJECT(base_spin),"value-changed",G_CALLBACK(base_changed),ui);
g_signal_connect(G_OBJECT(position_combo_box),"changed",G_CALLBACK(position_combobox_changed),ui);
gtk_widget_show_all(drmr_ui_widget);
gtk_widget_hide(no_kit_label);
}
static LV2UI_Handle
instantiate(const LV2UI_Descriptor* descriptor,
const char* plugin_uri,
const char* bundle_path,
LV2UI_Write_Function write_function,
LV2UI_Controller controller,
LV2UI_Widget* widget,
const LV2_Feature* const* features) {
DrMrUi *ui = (DrMrUi*)malloc(sizeof(DrMrUi));
ui->write = write_function;
ui->controller = controller;
ui->drmr_widget = NULL;
ui->map = NULL;
ui->curKit = -1;
ui->samples = 0;
*widget = NULL;
while(*features) {
if (!strcmp((*features)->URI, LV2_URID_URI "#map"))
ui->map = (LV2_URID_Map *)((*features)->data);
features++;
}
if (!ui->map) {
fprintf(stderr, "LV2 host does not support urid#map.\n");
free(ui);
return 0;
}
map_drmr_uris(ui->map,&(ui->uris));
ui->bundle_path = g_strdup(bundle_path);
lv2_atom_forge_init(&ui->forge,ui->map);
build_drmr_ui(ui);
ui->kits = scan_kits();
ui->gain_quark = g_quark_from_string("drmr_gain_quark");
ui->pan_quark = g_quark_from_string("drmr_pan_quark");
ui->gain_sliders = NULL;
ui->pan_sliders = NULL;
// store previous gain/pan vals to re-apply to sliders when we
// change kits
ui->gain_vals = malloc(32*sizeof(float));
memset(ui->gain_vals,0,32*sizeof(float));
ui->pan_vals = malloc(32*sizeof(float));
memset(ui->pan_vals,0,32*sizeof(float));
ui->cols = 4;
ui->forceUpdate = false;
fill_kit_combo(ui->kit_combo, ui->kits);
#ifdef DRMR_UI_ZERO_SAMP
ui->startSamp = DRMR_UI_ZERO_SAMP;
#else
ui->startSamp = 0;
#endif
*widget = ui->drmr_widget;
return ui;
}
static void cleanup(LV2UI_Handle handle) {
DrMrUi* ui = (DrMrUi*)handle;
// seems qtractor likes to destory us
// before calling, avoid double-destroy
if (GTK_IS_WIDGET(ui->drmr_widget))
gtk_widget_destroy(ui->drmr_widget);
if (ui->gain_sliders) free(ui->gain_sliders);
if (ui->pan_sliders) free(ui->pan_sliders);
g_free(ui->bundle_path);
free_kits(ui->kits);
free(ui);
}
struct slider_callback_data {
GtkRange* range;
float val;
};
static gboolean slider_callback(gpointer data) {
struct slider_callback_data *cbd = (struct slider_callback_data*)data;
gtk_range_set_value(cbd->range,cbd->val);
free(cbd);
return FALSE; // don't keep calling
}
static void
port_event(LV2UI_Handle handle,
uint32_t port_index,
uint32_t buffer_size,
uint32_t format,
const void* buffer) {
DrMrPortIndex index = (DrMrPortIndex)port_index;
DrMrUi* ui = (DrMrUi*)handle;
if (index == DRMR_BASENOTE) {
int base = (int)(*((float*)buffer));
if (base >= 21 && base <= 107) {
setBaseLabel((int)base);
gtk_spin_button_set_value(ui->base_spin,base);
gtk_label_set_markup(ui->base_label,baseLabelBuf);
}
}
else if (index >= DRMR_GAIN_ONE &&
index <= DRMR_GAIN_THIRTYTWO) {
float gain = *(float*)buffer;
int idx = index-DRMR_GAIN_ONE;
ui->gain_vals[idx] = gain;
if (idx < ui->samples && ui->gain_sliders) {
struct slider_callback_data* data = malloc(sizeof(struct slider_callback_data));
data->range = GTK_RANGE(ui->gain_sliders[idx]);
data->val = gain;
g_idle_add(slider_callback,data);
//GtkRange* range = GTK_RANGE(ui->gain_sliders[idx]);
//gtk_range_set_value(range,gain);
}
}
else if (index >= DRMR_PAN_ONE &&
index <= DRMR_PAN_THIRTYTWO) {
float pan = *(float*)buffer;
int idx = index-DRMR_PAN_ONE;
ui->pan_vals[idx] = pan;
if (idx < ui->samples && ui->pan_sliders) {
struct slider_callback_data* data = malloc(sizeof(struct slider_callback_data));
data->range = GTK_RANGE(ui->pan_sliders[idx]);
data->val = pan;
g_idle_add(slider_callback,data);
}
}
}
static const void*
extension_data(const char* uri) {
return NULL;
}
static const LV2UI_Descriptor descriptor = {
DRMR_UI_URI,
instantiate,
cleanup,
port_event,
extension_data
};
LV2_SYMBOL_EXPORT
const LV2UI_Descriptor*
lv2ui_descriptor(uint32_t index) {
switch (index) {
case 0:
return &descriptor;
default:
return NULL;
}
}
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