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/* timesigdialog.cpp
* a callback that creates a dialog boxes prompting the
* user for information on changing the time signature
* for Denemo, a gtk+ frontend to GNU Lilypond
* (c) 2000-2005 Matthew Hiller */
#include <gtk/gtk.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "calculatepositions.h"
#include "commandfuncs.h"
#include "contexts.h"
#include <denemo/denemo.h>
#include "dialogs.h"
#include "draw.h"
#include "measureops.h"
#include "objops.h"
#include "staffops.h"
#include "utils.h"
/**
* Is the integer a power of 2, or the value 1
*
*/
static gint
ispow2 (gint x)
{
if(x<1)
return 0;
for (; !(x & 1); x >>= 1)
; /* Go through all the low order bits that are equal to 0 */
return (x == 1);
}
/**
* Set the timesig values for the given staff
*
*/
static void
settimesig (DenemoStaff * curstaffstruct, gint time1, gint time2)
{
curstaffstruct->timesig.time1 = time1;
curstaffstruct->timesig.time2 = time2;
beamsandstemdirswholestaff (curstaffstruct);
}
/**
* Set the initial timesig on current staff or across entire score
* @param si pointer to the DenemoScore structure.
* @param curstaffstruct the staff to set the timesig for.
* @param time1 the time signature nominator
* @param time2 the time signature denominator
* @param all_staves apply the new time signature to all staves
*
* @return None
*/
void
dnm_setinitialtimesig (DenemoScore * si, DenemoStaff * curstaffstruct,
gint time1, gint time2, gboolean all_staves)
{
staffnode *curstaff;
take_snapshot();
if (time1 && time2 && ispow2 (time2))
{
if (all_staves)
{
for (curstaff = si->thescore; curstaff; curstaff = curstaff->next)
{
curstaffstruct = (DenemoStaff *) curstaff->data;
settimesig (curstaffstruct, time1, time2);
}
find_leftmost_allcontexts (si);
}
else
{
settimesig (curstaffstruct, time1, time2);
find_leftmost_staffcontext (curstaffstruct, si);
}
}
}
/**
* Insert time sig change on either a single staff or across the
* entire score.
*/
static void
insert_timesig (DenemoScore * si, DenemoStaff * curstaffstruct, gint time1,
gint time2)
{
staffnode *curstaff = NULL;
measurenode *curmeasure = NULL;
objnode *firstobj = NULL;
DenemoObject *firstmudobj = NULL;
gboolean replacing = FALSE; /* if we don't use this trick, anomalous
* stuff can happen when replacing a time
* signature */
for (curstaff = si->thescore; curstaff; curstaff = curstaff->next)
{
if (((DenemoStaff *) curstaff->data)->is_parasite)
continue;
curmeasure = g_list_nth (firstmeasurenode (curstaff),
si->currentmeasurenum - 1);
/* First, look to see if there already is a time signature change at
the beginning of this measure. If so, delete it first. */
if(!curmeasure)
continue;
firstobj = firstobjnode (curmeasure);
if (firstobj)
firstmudobj = (DenemoObject *) firstobj->data;
else
firstmudobj = NULL;
if (firstmudobj && firstmudobj->type == TIMESIG)
{
replacing = TRUE;
curmeasure->data =
g_list_remove_link ((objnode *) curmeasure->data, firstobj);
freeobject (firstmudobj);
g_list_free_1 (firstobj);
}
curmeasure->data = g_list_prepend ((objnode *) curmeasure->data,
dnm_newtimesigobj (time1, time2));
if (curmeasure == si->currentmeasure)
{
if (!replacing)
si->cursor_x++;
if (si->cursor_appending)
si->currentobject = g_list_last ((objnode *) curmeasure->data);
else
si->currentobject =
g_list_nth ((objnode *) curmeasure->data, si->cursor_x);
}
beamsandstemdirswholestaff ((DenemoStaff *) curstaff->data);
}
}
/**
* Callback to insert a time sig change
* Calls timesig_change with the INSERT argument
*/
void
timesig_change_insert (GtkAction *action, DenemoScriptParam * param)
{
GET_1PARAM(action, param, timesigname);
DenemoGUI *gui = Denemo.gui;
if(query) {
gchar *curtimesig = g_strdup_printf("%d/%d", gui->si->cursortime1, gui->si->cursortime2);
g_string_assign(param->string, curtimesig);
g_free(curtimesig);
param->status = TRUE;
return;
}
if(timesigname==NULL)
timesig_change (gui, INSERT);
else {
DenemoStaff *curstaffstruct = (DenemoStaff *) gui->si->currentstaff->data;
gint time1, time2;
sscanf(timesigname, "%d/%d", &time1, &time2);
if( time1 && time2) {
insert_timesig (gui->si, curstaffstruct, time1, time2);
param->status = TRUE;
displayhelper (gui);
}
}
}
/**
* Callback to change the initial time sig change
* Calls timesig_change with the CHANGEINITIAL argument
*/
void
timesig_change_initial (GtkAction *action, DenemoScriptParam * param)
{
GET_1PARAM(action, param, timesigname);
DenemoGUI *gui = Denemo.gui;
if(query) {
GList *curstaff = gui->si->thescore;
DenemoStaff *curstaffstruct = (DenemoStaff *) curstaff->data;
gchar *curtimesig = g_strdup_printf("%d/%d", curstaffstruct->timesig.time1, curstaffstruct->timesig.time2);
g_string_assign(param->string, curtimesig);
g_free(curtimesig);
param->status = TRUE;
return;
}
if(timesigname==NULL)
timesig_change (gui, CHANGEINITIAL);
else {
DenemoStaff *curstaffstruct = (DenemoStaff *) gui->si->currentstaff->data;
gint time1, time2;
sscanf(timesigname, "%d/%d", &time1, &time2);
if( time1 && time2) {
dnm_setinitialtimesig (gui->si, curstaffstruct, time1,
time2, TRUE);
param->status = TRUE;
displayhelper (gui);
}
}
}
/**
* Time sig change dialog. allows the user to set
* the time signature to insert or change
*/
void
timesig_change (DenemoGUI * gui, actiontype action)
{
GtkWidget *dialog;
GtkWidget *label;
GtkWidget *textentry1;
GtkWidget *textentry2;
GtkWidget *checkbutton;
DenemoStaff *curstaffstruct = (DenemoStaff *) gui->si->currentstaff->data;
if (gui->si->lily_file && action == CHANGEINITIAL)
return; /* no code for this yet - just edit textually */
dialog =
gtk_dialog_new_with_buttons (((action == CHANGEINITIAL) ?
_("Change initial time signature") :
_("Insert time signature change")),
NULL, /* parent window */
(GtkDialogFlags)
(GTK_DIALOG_MODAL |
GTK_DIALOG_DESTROY_WITH_PARENT),
GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
GTK_STOCK_CANCEL, GTK_STOCK_CANCEL,
NULL);
gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox),
12);
label = gtk_label_new (_("Enter desired time signature:"));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
label, FALSE, FALSE, 8);
textentry1 = gtk_spin_button_new_with_range (1, 128, 1.0);
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (textentry1), 0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (textentry1),
(gdouble) curstaffstruct->timesig.time1);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), textentry1, FALSE,
FALSE, 8);
gtk_entry_set_activates_default (GTK_ENTRY (textentry1), TRUE);
textentry2 = gtk_spin_button_new_with_range (1, 16, 1.0);
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (textentry2), 0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (textentry2),
(gdouble) curstaffstruct->timesig.time2);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), textentry2, FALSE,
FALSE, 8);
gtk_entry_set_activates_default (GTK_ENTRY (textentry2), TRUE);
checkbutton = gtk_check_button_new_with_label (_("Apply to all staves"));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
checkbutton, FALSE, FALSE, 8);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (checkbutton), TRUE);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
gtk_widget_show_all (dialog);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
{
gint time1 =
gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (textentry1));
gint time2 =
gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (textentry2));
gboolean all_staves =
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (checkbutton));
if (action == CHANGEINITIAL)
{
dnm_setinitialtimesig (gui->si, curstaffstruct, time1,
time2, all_staves);
}
else
{
if(gui->si->currentobject && ((DenemoObject*)gui->si->currentobject->data)->type==TIMESIG)
deleteobject(gui);
insert_timesig (gui->si, curstaffstruct, time1, time2);
}
displayhelper (gui);
}
score_status(gui, TRUE);
gtk_widget_destroy (dialog);
}
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