static gboolean on_auto_scroll(FmDndAutoScroll* as)
{
int x, y;
GtkAdjustment* va = as->vadj;
GtkAdjustment* ha = as->hadj;
GtkWidget* widget = as->widget;
gdk_window_get_pointer(widget->window, &x, &y, NULL);
if(va)
{
if(y < SCROLL_EDGE_SIZE) /* scroll up */
{
if(va->value > va->lower)
{
va->value -= va->step_increment;
if(va->value < va->lower)
va->value = va->lower;
}
}
else if(y > (widget->allocation.height - SCROLL_EDGE_SIZE))
{
/* scroll down */
if(va->value < va->upper - va->page_size)
{
va->value += va->step_increment;
if(va->value > va->upper - va->page_size)
va->value = va->upper - va->page_size;
}
}
gtk_adjustment_value_changed(va);
}
if(ha)
{
if(x < SCROLL_EDGE_SIZE) /* scroll to left */
{
if(ha->value > ha->lower)
{
ha->value -= ha->step_increment;
if(ha->value < ha->lower)
ha->value = ha->lower;
}
}
else if(x > (widget->allocation.width - SCROLL_EDGE_SIZE))
{
/* scroll to right */
if(ha->value < ha->upper - ha->page_size)
{
ha->value += ha->step_increment;
if(ha->value > ha->upper - ha->page_size)
ha->value = ha->upper - ha->page_size;
}
}
gtk_adjustment_value_changed(ha);
}
return TRUE;
}
/*
* The following is assumed:
* (hadj && vadj) || (!hadj && !vadj)
*/
void ScrollView::setGtkAdjustments(GtkAdjustment* hadj, GtkAdjustment* vadj, bool resetValues)
{
ASSERT(!hadj == !vadj);
m_horizontalAdjustment = hadj;
m_verticalAdjustment = vadj;
// Reset the adjustments to a sane default
if (m_horizontalAdjustment) {
ScrollbarGtk* hScrollbar = reinterpret_cast<ScrollbarGtk*>(horizontalScrollbar());
if (hScrollbar)
hScrollbar->attachAdjustment(m_horizontalAdjustment);
ScrollbarGtk* vScrollbar = reinterpret_cast<ScrollbarGtk*>(verticalScrollbar());
if (vScrollbar)
vScrollbar->attachAdjustment(m_verticalAdjustment);
// We used to reset everything to 0 here, but when page cache
// is enabled we reuse FrameViews that are cached. Since their
// size is not going to change when being restored, (which is
// what would cause the upper limit in the adjusments to be
// set in the normal case), we make sure they are up-to-date
// here. This is needed for the parent scrolling widget to be
// able to report correct values.
m_horizontalAdjustment->lower = 0;
m_horizontalAdjustment->upper = resetValues ? 0 : frameRect().width();
m_horizontalAdjustment->value = resetValues ? 0 : scrollOffset().width();
gtk_adjustment_changed(m_horizontalAdjustment);
gtk_adjustment_value_changed(m_horizontalAdjustment);
m_verticalAdjustment->lower = 0;
m_verticalAdjustment->upper = resetValues ? 0 : frameRect().height();
m_verticalAdjustment->value = resetValues ? 0 : scrollOffset().height();
gtk_adjustment_changed(m_verticalAdjustment);
gtk_adjustment_value_changed(m_verticalAdjustment);
} else {
ScrollbarGtk* hScrollbar = reinterpret_cast<ScrollbarGtk*>(horizontalScrollbar());
if (hScrollbar)
hScrollbar->detachAdjustment();
ScrollbarGtk* vScrollbar = reinterpret_cast<ScrollbarGtk*>(verticalScrollbar());
if (vScrollbar)
vScrollbar->detachAdjustment();
}
/* reconsider having a scrollbar */
setHasVerticalScrollbar(false);
setHasHorizontalScrollbar(false);
}
static gboolean
eog_thumb_nav_scroll_step (gpointer user_data)
{
EogThumbNav *nav = EOG_THUMB_NAV (user_data);
gint delta;
gdouble value, upper, page_size;
if (nav->priv->scroll_pos < 10)
delta = EOG_THUMB_NAV_SCROLL_INC;
else if (nav->priv->scroll_pos < 20)
delta = EOG_THUMB_NAV_SCROLL_INC * 2;
else if (nav->priv->scroll_pos < 30)
delta = EOG_THUMB_NAV_SCROLL_INC * 2 + 5;
else
delta = EOG_THUMB_NAV_SCROLL_INC * 2 + 12;
if (!nav->priv->scroll_dir)
delta *= -1;
g_object_get (nav->priv->adj,
"value", &value,
"upper", &upper,
"page_size", &page_size,
NULL);
if ((gint) (value + (gdouble) delta) >= 0 &&
(gint) (value + (gdouble) delta) <= upper - page_size)
{
gtk_adjustment_set_value (nav->priv->adj, value + (gdouble) delta);
nav->priv->scroll_pos++;
gtk_adjustment_value_changed (nav->priv->adj);
}
else
{
if (delta > 0)
gtk_adjustment_set_value (nav->priv->adj, upper - page_size);
else
gtk_adjustment_set_value (nav->priv->adj, 0);
nav->priv->scroll_pos = 0;
gtk_adjustment_value_changed (nav->priv->adj);
return G_SOURCE_REMOVE;
}
return G_SOURCE_CONTINUE;
}
static gboolean on_scroll_event(GtkWidget *widget, GdkEventScroll *event, PussVConsole* self) {
gdouble y_new = self->adjust->value;
switch( event->direction ) {
case GDK_SCROLL_UP:
y_new -= 3;
if( y_new < self->adjust->lower )
y_new = self->adjust->lower;
break;
case GDK_SCROLL_DOWN:
y_new += 3;
if( y_new > self->adjust->upper )
y_new = self->adjust->upper;
break;
case GDK_SCROLL_LEFT:
case GDK_SCROLL_RIGHT:
break;
}
if( y_new != self->adjust->value ) {
self->adjust->value = y_new;
gtk_adjustment_value_changed(self->adjust);
}
return TRUE;
}
static void
set_width(GtkWidget *item, gpointer bp)
{
int widthtype;
gboolean t;
ENTER;
widthtype = gtk_combo_box_get_active(GTK_COMBO_BOX(item)) + 1;
DBG("widthtype=%d\n", widthtype);
t = (widthtype != WIDTH_REQUEST);
gtk_widget_set_sensitive(width_spinb, t);
if (widthtype == WIDTH_PERCENT) {
width_adj->upper = 100;
width_adj->value = width_adj->upper;
} else if (widthtype == WIDTH_PIXEL) {
width_adj->upper = gdk_screen_width();
width_adj->value = width_adj->upper;
} else
RET();
gtk_adjustment_changed(width_adj);
gtk_adjustment_value_changed(width_adj);
RET();
}
void
patch_edit_update_editors(void)
{
int i;
char name[21];
/* update all the adjustments */
for (i = 0; i < DX7_VOICE_PARAMETERS - 1 /* omitting name */; i++) {
GTK_ADJUSTMENT(edit_adj[i])->value = (float)edit_buffer.voice[i];
/* temporarily block signal to model, then update adjustment */
g_signal_handlers_block_by_func(G_OBJECT(edit_adj[i]), patch_edit_on_edit_adj_changed,
(gpointer)i);
gtk_adjustment_value_changed(GTK_ADJUSTMENT(edit_adj[i]));
g_signal_handlers_unblock_by_func(G_OBJECT(edit_adj[i]), patch_edit_on_edit_adj_changed,
(gpointer)i);
}
/* update name entry */
patch_edit_copy_name_to_utf8(name, edit_buffer.voice, FALSE);
/* temporarily block signal to model, then update entry text */
g_signal_handlers_block_by_func(G_OBJECT(editor_name_entry), patch_edit_on_name_entry_changed,
NULL);
gtk_entry_set_text(GTK_ENTRY(editor_name_entry), name);
g_signal_handlers_unblock_by_func(G_OBJECT(editor_name_entry), patch_edit_on_name_entry_changed,
NULL);
patch_edit_update_status();
}
void
dma_sparse_view_goto (DmaSparseView *view, guint location)
{
dma_sparse_iter_move_at (&view->priv->start, location);
gtk_adjustment_set_value (view->priv->vadjustment, (gdouble)location);
gtk_adjustment_value_changed (view->priv->vadjustment);
}
static void recompute_ps_vscrollbar (void)
{
GtkAdjustment *adj;
ulong limit;
adj = GTK_ADJUSTMENT(s_ps_vsadj);
#ifdef NOTDEF
/* This seems like the right calculation, but seems not to work */
if (g_neventdefs > c_maxpointsel)
limit = g_neventdefs - c_maxpointsel;
else
limit = g_neventdefs;
#else
limit = g_neventdefs-1;
#endif
adj->lower = (gfloat)0.00;
adj->upper = (gfloat)limit;
adj->value = (gfloat)0.00;
adj->step_increment = (gfloat)1.00;
adj->page_increment = (gfloat)(c_maxpointsel / 3);
adj->page_size = (gfloat)c_maxpointsel;
gtk_adjustment_changed(adj);
gtk_adjustment_value_changed(adj);
gtk_widget_show(s_ps_vscroll);
}
void gui_logfunction(int log_level, const char* str)
{
GtkTextIter iter;
GtkAdjustment* adj;
const char* tag;
if (!TEXT_BUFFER)
return;
switch (log_level) {
case LOG_INFO: tag = "green_text";
break;
case LOG_DEBUG: tag = "green_text";
break;
case LOG_WARNING: tag = "purple_text";
break;
case LOG_ERROR: tag = "red_text";
break;
}
gtk_text_buffer_get_iter_at_offset (TEXT_BUFFER,&iter,-1);
gtk_text_buffer_insert_with_tags_by_name(TEXT_BUFFER,&iter,str,-1,tag,NULL);
if (SCROLL_TEXT)
{
adj = gtk_scrolled_window_get_vadjustment(SCROLL_TEXT);
adj -> value = adj -> upper;
gtk_adjustment_value_changed(adj);
}
}
static gboolean
do_adjustment (gpointer user_data)
{
int row;
GtkAdjustment *adj ;
gfloat value, min_value, max_value;
EReflow *reflow = user_data;
row = reflow->cursor_row;
if (row == -1)
return FALSE;
adj = gtk_layout_get_hadjustment (GTK_LAYOUT (GNOME_CANVAS_ITEM (reflow)->canvas));
value = adj->value;
if ((!reflow->items) || (!reflow->items[row]))
return TRUE;
min_value = reflow->items[row]->x2 - adj->page_size;
max_value = reflow->items[row]->x1;
if (value < min_value)
value = min_value;
if (value > max_value)
value = max_value;
if (value != adj->value) {
adj->value = value;
gtk_adjustment_value_changed (adj);
}
reflow->do_adjustment_idle_id = 0;
return FALSE;
}
static void
gtk_layout_set_adjustment_upper (GtkAdjustment *adj,
gdouble upper,
gboolean always_emit_changed)
{
gboolean changed = FALSE;
gboolean value_changed = FALSE;
gdouble min = MAX (0., upper - adj->page_size);
if (upper != adj->upper)
{
adj->upper = upper;
changed = TRUE;
}
if (adj->value > min)
{
adj->value = min;
value_changed = TRUE;
}
if (changed || always_emit_changed)
gtk_adjustment_changed (adj);
if (value_changed)
gtk_adjustment_value_changed (adj);
}
/* center the view to a place */
void center_map(struct mapwin *mw,double longsec, double lattsec)
{
double x,y;
geosec2point(&x,&y,(double)longsec,(double)lattsec);
x=x-mw->page_width/2;
y=y-mw->page_height/2;
x=floor(x);
y=floor(y);
if ((x != GTK_ADJUSTMENT(mw->hadj)->value) ||
(y != GTK_ADJUSTMENT(mw->vadj)->value)) {
GTK_ADJUSTMENT(mw->hadj)->value=x;
GTK_ADJUSTMENT(mw->vadj)->value=y;
gtk_adjustment_value_changed(GTK_ADJUSTMENT(mw->hadj));
gtk_adjustment_value_changed(GTK_ADJUSTMENT(mw->vadj));
}
}
void SetScrollPos_(GtkWidget *scr, int pos, int max)
{
GTK_ADJUSTMENT(GTK_RANGE(scr)->adjustment)->lower = 0;
GTK_ADJUSTMENT(GTK_RANGE(scr)->adjustment)->upper = max+1;
GTK_ADJUSTMENT(GTK_RANGE(scr)->adjustment)->value = pos;
GTK_ADJUSTMENT(GTK_RANGE(scr)->adjustment)->page_size = 1;
gtk_adjustment_value_changed(GTK_ADJUSTMENT(GTK_RANGE(scr)->adjustment));
}
int
clip_GTK_ADJUSTMENTVALUECHANGED(ClipMachine * cm)
{
C_widget *cadj = _fetch_cw_arg(cm);
CHECKCWID(cadj,GTK_IS_ADJUSTMENT);
gtk_adjustment_value_changed(GTK_ADJUSTMENT(cadj->widget));
return 0;
err:
return 1;
}
static gboolean
eog_thumb_nav_scroll_event (GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
EogThumbNav *nav = EOG_THUMB_NAV (user_data);
gint inc = EOG_THUMB_NAV_SCROLL_INC * 3;
gdouble value, upper, page_size, delta_x, delta_y;
gboolean smooth;
nav->priv->adj = nav->priv->vertical ? nav->priv->vadj : nav->priv->hadj;
switch (event->direction)
{
#if GTK_CHECK_VERSION (3, 3, 18)
/* Handle smooth scroll events from mouse wheels, bug 672311. */
case GDK_SCROLL_SMOOTH:
smooth = gdk_event_get_scroll_deltas ((const GdkEvent *) event,
&delta_x, &delta_y);
/* Pass through non-mouse wheel events. */
if (G_UNLIKELY (!smooth) || delta_x != 0.0 || fabs (delta_y) != 1.0)
return FALSE;
inc *= (gint) delta_y;
break;
#endif
case GDK_SCROLL_UP:
case GDK_SCROLL_LEFT:
inc *= -1;
break;
case GDK_SCROLL_DOWN:
case GDK_SCROLL_RIGHT:
break;
default:
g_assert_not_reached ();
return FALSE;
}
value = gtk_adjustment_get_value (nav->priv->adj);
if (inc < 0)
gtk_adjustment_set_value (nav->priv->adj, MAX (0, value + inc));
else
{
upper = gtk_adjustment_get_upper (nav->priv->adj);
page_size = gtk_adjustment_get_page_size (nav->priv->adj);
gtk_adjustment_set_value (nav->priv->adj, MIN (upper - page_size, value + inc));
}
gtk_adjustment_value_changed (nav->priv->adj);
return TRUE;
}
/* from/to/value have changed ... update the widgets.
*/
static void
tslider_real_changed( Tslider *tslider )
{
GtkAdjustment *adj = tslider->adj;
GtkWidget *entry = tslider->entry;
#ifdef DEBUG
printf( "tslider_real_changed: %p, val = %g\n",
tslider, tslider->value );
#endif /*DEBUG*/
if( tslider->auto_link )
tslider->svalue = tslider_value_to_slider( tslider,
tslider->value );
gtk_signal_handler_block_by_data( GTK_OBJECT( adj ), tslider );
gtk_signal_handler_block_by_data( GTK_OBJECT( entry ), tslider );
/* Some libc's hate out-of-bounds precision, so clip, just in case.
*/
set_gentry( tslider->entry, "%.*f",
IM_CLIP( 0, tslider->digits, 100 ), tslider->value );
gtk_scale_set_digits( GTK_SCALE( tslider->slider ), tslider->digits );
if( !DEQ( tslider->from, tslider->last_from ) ||
!DEQ( tslider->to, tslider->last_to ) ) {
double range = tslider->to - tslider->from;
adj->step_increment = range / 100;
adj->page_increment = range / 10;
adj->page_size = range / 10;
adj->lower = tslider->from;
adj->upper = tslider->to + adj->page_size;
tslider->last_to = tslider->to;
tslider->last_from = tslider->from;
gtk_adjustment_changed( adj );
}
if( !DEQ( tslider->svalue, tslider->last_svalue ) ) {
adj->value = tslider->svalue;
tslider->last_svalue = tslider->svalue;
gtk_adjustment_value_changed( adj );
}
gtk_signal_handler_unblock_by_data( GTK_OBJECT( adj ), tslider );
gtk_signal_handler_unblock_by_data( GTK_OBJECT( entry ), tslider );
}
GtkWidget *
make_font_selector (void)
{
GtkWidget *hbox;
GtkWidget *util_hbox;
GtkWidget *label;
GtkWidget *option_menu;
GtkWidget *spin_button;
GtkAdjustment *adj;
hbox = gtk_hbox_new (FALSE, 4);
util_hbox = gtk_hbox_new (FALSE, 2);
label = gtk_label_new ("Family:");
gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
option_menu = make_families_menu ();
gtk_box_pack_start (GTK_BOX (util_hbox), option_menu, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
util_hbox = gtk_hbox_new (FALSE, 2);
label = gtk_label_new ("Style:");
gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
option_menu = make_styles_combo ();
gtk_box_pack_start (GTK_BOX (util_hbox), option_menu, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
util_hbox = gtk_hbox_new (FALSE, 2);
label = gtk_label_new ("Size:");
gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
spin_button = gtk_spin_button_new (NULL, 1., 0);
gtk_box_pack_start (GTK_BOX (util_hbox), spin_button, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin_button));
adj->value = PANGO_PIXELS (pango_font_description_get_size(font_description));
adj->lower = 0;
adj->upper = 1024;
adj->step_increment = 1;
adj->page_size = 10;
gtk_adjustment_changed (adj);
gtk_adjustment_value_changed (adj);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (font_size_changed), NULL);
return hbox;
}
void
utl_gui_sw_vscrollbar_move_position (GtkWidget *scrolled_window, gint direction) {
GtkAdjustment *adj;
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(scrolled_window));
if (direction == SW_MOVE_UP) {
if (adj->value > 0.0) {
adj->value -= adj->step_increment;
adj->value = adj->value < 0.0 ? 0.0 : adj->value;
gtk_adjustment_value_changed (GTK_ADJUSTMENT(adj));
}
} else if (direction == SW_MOVE_DOWN) {
if (adj->value+adj->page_size < adj->upper) {
adj->value += adj->step_increment;
gtk_adjustment_value_changed (GTK_ADJUSTMENT(adj));
}
}
}
static int gtkCanvasSetDYAttrib(Ihandle* ih, const char *value)
{
if (ih->data->sb & IUP_SB_VERT)
{
double ymin, ymax, liney;
float dy;
int value_changed;
GtkAdjustment* sb_vert = gtk_scrolled_window_get_vadjustment(gtkCanvasGetScrolledWindow(ih));
if (!sb_vert) return 1;
if (!iupStrToFloat(value, &dy))
return 1;
ymin = iupAttribGetFloat(ih, "YMIN");
ymax = iupAttribGetFloat(ih, "YMAX");
if (!iupAttribGet(ih,"LINEY"))
{
liney = dy/10;
if (liney==0)
liney = 1;
}
else
liney = iupAttribGetFloat(ih,"LINEY");
#if GTK_CHECK_VERSION(2, 14, 0)
{
double page_size = dy;
double dvalue = gtk_adjustment_get_value(sb_vert);
value_changed = gtkCanvasCheckScroll(ymin, ymax, &page_size, &dvalue);
gtk_adjustment_configure(sb_vert, dvalue, ymin, ymax, liney, page_size, dy);
}
#else
sb_vert->lower = ymin;
sb_vert->upper = ymax;
sb_vert->step_increment = liney;
sb_vert->page_size = dy;
value_changed = gtkCanvasCheckScroll(ymin, ymax, &sb_vert->page_size, &sb_vert->value);
sb_vert->page_increment = sb_vert->page_size;
gtk_adjustment_changed(sb_vert);
#endif
if (value_changed)
gtk_adjustment_value_changed(sb_vert);
}
return 1;
}
static int gtkCanvasSetDXAttrib(Ihandle* ih, const char *value)
{
if (ih->data->sb & IUP_SB_HORIZ)
{
double xmin, xmax, linex;
float dx;
int value_changed;
GtkAdjustment* sb_horiz = gtk_scrolled_window_get_hadjustment(gtkCanvasGetScrolledWindow(ih));
if (!sb_horiz) return 1;
if (!iupStrToFloat(value, &dx))
return 1;
xmin = iupAttribGetFloat(ih, "XMIN");
xmax = iupAttribGetFloat(ih, "XMAX");
if (!iupAttribGet(ih,"LINEX"))
{
linex = dx/10;
if (linex==0)
linex = 1;
}
else
linex = iupAttribGetFloat(ih,"LINEX");
#if GTK_CHECK_VERSION(2, 14, 0)
{
double page_size = dx;
double dvalue = gtk_adjustment_get_value(sb_horiz);
value_changed = gtkCanvasCheckScroll(xmin, xmax, &page_size, &dvalue);
gtk_adjustment_configure(sb_horiz, dvalue, xmin, xmax, linex, page_size, dx);
}
#else
sb_horiz->lower = xmin;
sb_horiz->upper = xmax;
sb_horiz->step_increment = linex;
sb_horiz->page_size = dx;
value_changed = gtkCanvasCheckScroll(xmin, xmax, &sb_horiz->page_size, &sb_horiz->value);
sb_horiz->page_increment = sb_horiz->page_size;
gtk_adjustment_changed(sb_horiz);
#endif
if (value_changed)
gtk_adjustment_value_changed(sb_horiz);
}
return 1;
}
static gint
gam_slider_pan_pan_event_cb (GtkWidget *widget, GdkEvent *event, GamSliderPan *gam_slider_pan)
{
GamSliderPanPrivate *priv;
priv = GAM_SLIDER_PAN_GET_PRIVATE (gam_slider_pan);
if (event->type == GDK_2BUTTON_PRESS) {
gtk_adjustment_set_value (GTK_ADJUSTMENT (priv->pan_adjustment), 0.0);
gtk_adjustment_value_changed (GTK_ADJUSTMENT (priv->pan_adjustment));
return TRUE;
}
return FALSE;
}
void channel_changed(void)
{
scope_vert_t *vert;
scope_chan_t *chan;
GtkAdjustment *adj;
gchar *name;
gchar buf1[BUFLEN + 1], buf2[BUFLEN + 1];
vert = &(ctrl_usr->vert);
if ((vert->selected < 1) || (vert->selected > 16)) {
gtk_label_set_text_if(vert->scale_label, "----");
gtk_label_set_text_if(vert->chan_num_label, "--");
gtk_label_set_text_if(vert->source_name_label, "------");
request_display_refresh(1);
return;
}
chan = &(ctrl_usr->chan[vert->selected - 1]);
/* set position slider based on new channel */
gtk_adjustment_set_value(GTK_ADJUSTMENT(vert->pos_adj),
chan->position * VERT_POS_RESOLUTION);
/* set scale slider based on new channel */
adj = GTK_ADJUSTMENT(vert->scale_adj);
adj->lower = chan->min_index;
adj->upper = chan->max_index;
adj->value = chan->scale_index;
gtk_adjustment_changed(adj);
gtk_adjustment_value_changed(adj);
/* update the channel number and name display */
snprintf(buf1, BUFLEN, "%2d", vert->selected);
name = chan->name;
gtk_label_set_text_if(vert->chan_num_label, buf1);
gtk_label_set_text_if(vert->source_name_label, name);
/* update the offset display */
if (chan->data_type == HAL_BIT) {
snprintf(buf1, BUFLEN, "----");
} else {
if(chan->ac_offset) {
snprintf(buf1, BUFLEN, "(AC)");
} else {
format_signal_value(buf1, BUFLEN, chan->vert_offset);
}
}
snprintf(buf2, BUFLEN, _("Offset\n%s"), buf1);
gtk_label_set_text_if(vert->offset_label, buf2);
request_display_refresh(1);
}
bool ScrollView::platformHandleVerticalAdjustment(const IntSize& scroll)
{
if (m_verticalAdjustment) {
m_verticalAdjustment->page_size = visibleHeight();
m_verticalAdjustment->step_increment = cScrollbarPixelsPerLineStep;
m_verticalAdjustment->page_increment = visibleHeight() - cAmountToKeepWhenPaging;
m_verticalAdjustment->lower = 0;
m_verticalAdjustment->upper = contentsHeight();
gtk_adjustment_changed(m_verticalAdjustment);
if (m_verticalAdjustment->value != scroll.height()) {
m_verticalAdjustment->value = scroll.height();
gtk_adjustment_value_changed(m_verticalAdjustment);
}
return true;
}
return false;
}
/* The standard gtk_adjustment_set_value ignores page size, which
* disagrees with the logic used by scroll bars, for example.
*/
void
eel_gtk_adjustment_set_value (GtkAdjustment *adjustment,
float value)
{
float upper_page_start, clamped_value;
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
upper_page_start = MAX (gtk_adjustment_get_upper (adjustment) -
gtk_adjustment_get_page_size (adjustment),
gtk_adjustment_get_lower (adjustment));
clamped_value = CLAMP (value, gtk_adjustment_get_lower (adjustment), upper_page_start);
if (clamped_value != gtk_adjustment_get_value (adjustment))
{
gtk_adjustment_set_value (adjustment, clamped_value);
gtk_adjustment_value_changed (adjustment);
}
}
bool ScrollView::platformHandleVerticalAdjustment(const IntSize& scroll)
{
if (m_verticalAdjustment) {
m_verticalAdjustment->page_size = visibleHeight();
m_verticalAdjustment->step_increment = visibleHeight() / 10.0;
m_verticalAdjustment->page_increment = visibleHeight() * 0.9;
m_verticalAdjustment->lower = 0;
m_verticalAdjustment->upper = contentsHeight();
gtk_adjustment_changed(m_verticalAdjustment);
if (m_scrollOffset.height() != scroll.height()) {
m_verticalAdjustment->value = scroll.height();
gtk_adjustment_value_changed(m_verticalAdjustment);
}
return true;
}
return false;
}
JNIEXPORT void JNICALL
Java_org_gnome_gtk_GtkAdjustment_gtk_1adjustment_1value_1changed
(
JNIEnv* env,
jclass cls,
jlong _self
)
{
GtkAdjustment* self;
// convert parameter self
self = (GtkAdjustment*) _self;
// call function
gtk_adjustment_value_changed(self);
// cleanup parameter self
}
void wxScrollBar::SetThumbPosition( int viewStart )
{
if (GetThumbPosition() != viewStart)
{
GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment;
const int i = (GtkRange*)m_widget == m_scrollBar[1];
const int max = int(adj->upper - adj->page_size);
if (viewStart > max)
viewStart = max;
if (viewStart < 0)
viewStart = 0;
m_scrollPos[i] =
adj->value = viewStart;
// If a "value_changed" signal emission is not already in progress
if (!m_blockValueChanged[i])
{
gtk_adjustment_value_changed(adj);
}
}
}
static void
gimp_text_style_editor_set_kerning (GimpTextStyleEditor *editor,
GtkTextTag *kerning_tag)
{
gint kerning = 0;
if (kerning_tag)
kerning = gimp_text_tag_get_kerning (kerning_tag);
g_signal_handlers_block_by_func (editor->kerning_adjustment,
gimp_text_style_editor_kerning_changed,
editor);
gtk_adjustment_set_value (editor->kerning_adjustment,
(gdouble) kerning / PANGO_SCALE);
/* make sure the "" really gets replaced */
gtk_adjustment_value_changed (editor->kerning_adjustment);
g_signal_handlers_unblock_by_func (editor->kerning_adjustment,
gimp_text_style_editor_kerning_changed,
editor);
}
static void
gimp_text_style_editor_set_baseline (GimpTextStyleEditor *editor,
GtkTextTag *baseline_tag)
{
gint baseline = 0;
if (baseline_tag)
baseline = gimp_text_tag_get_baseline (baseline_tag);
g_signal_handlers_block_by_func (editor->baseline_adjustment,
gimp_text_style_editor_baseline_changed,
editor);
gtk_adjustment_set_value (editor->baseline_adjustment,
(gdouble) baseline / PANGO_SCALE);
/* make sure the "" really gets replaced */
gtk_adjustment_value_changed (editor->baseline_adjustment);
g_signal_handlers_unblock_by_func (editor->baseline_adjustment,
gimp_text_style_editor_baseline_changed,
editor);
}
void wxScrollBar::SetThumbPosition( int viewStart )
{
if (GetThumbPosition() != viewStart)
{
GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment;
const int i = (GtkRange*)m_widget == m_scrollBar[1];
const int max = int(adj->upper - adj->page_size);
if (viewStart > max)
viewStart = max;
if (viewStart < 0)
viewStart = 0;
m_scrollPos[i] =
adj->value = viewStart;
g_signal_handlers_disconnect_by_func( m_widget,
(gpointer)gtk_value_changed, this);
gtk_adjustment_value_changed(adj);
g_signal_connect_after(m_widget, "value_changed",
G_CALLBACK(gtk_value_changed), this);
}
}
