static gboolean _lib_histogram_button_press_callback(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available)
return TRUE;
if(event->type == GDK_2BUTTON_PRESS)
{
dt_dev_exposure_reset_defaults(darktable.develop);
}
else
{
d->dragging = 1;
if(d->highlight == 2)
d->white = dt_dev_exposure_get_white(darktable.develop);
if(d->highlight == 1)
d->black = dt_dev_exposure_get_black(darktable.develop);
d->button_down_x = event->x;
d->button_down_y = event->y;
}
return TRUE;
}
static gboolean _lib_histogram_button_press_callback(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available)
return TRUE;
if(event->type == GDK_2BUTTON_PRESS)
{
dt_dev_exposure_reset_defaults(darktable.develop);
}
else
{
if(d->highlight == 3) // mode button
{
darktable.develop->histogram_type = (darktable.develop->histogram_type + 1) % DT_DEV_HISTOGRAM_N;
dt_conf_set_string("plugins/darkroom/histogram/mode", dt_dev_histogram_type_names[darktable.develop->histogram_type]);
}
else if(d->highlight == 4) // red button
{
d->red = !d->red;
dt_conf_set_bool("plugins/darkroom/histogram/show_red", d->red);
}
else if(d->highlight == 5) // green button
{
d->green = !d->green;
dt_conf_set_bool("plugins/darkroom/histogram/show_green", d->green);
}
else if(d->highlight == 6) // blue button
{
d->blue = !d->blue;
dt_conf_set_bool("plugins/darkroom/histogram/show_blue", d->blue);
}
else
{
d->dragging = 1;
if(d->highlight == 2)
d->white = dt_dev_exposure_get_white(darktable.develop);
if(d->highlight == 1)
d->black = dt_dev_exposure_get_black(darktable.develop);
d->button_down_x = event->x;
d->button_down_y = event->y;
}
}
// update for good measure
dt_control_queue_redraw_widget(self->widget);
return TRUE;
}
static gboolean _lib_histogram_motion_notify_callback(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available)
return TRUE;
if (d->dragging && d->highlight == 2)
{
float white = d->white - (event->x - d->button_down_x)*
1.0f/(float)widget->allocation.width;
dt_dev_exposure_set_white(darktable.develop, white);
}
else if(d->dragging && d->highlight == 1)
{
float black = d->black - (event->x - d->button_down_x)*
.1f/(float)widget->allocation.width;
dt_dev_exposure_set_black(darktable.develop, black);
}
else
{
const float offs = 4*DT_HIST_INSET;
const float pos = (event->x-offs)/(float)(widget->allocation.width - 2*offs);
if(pos < 0 || pos > 1.0);
else if(pos < 0.2)
{
d->highlight = 1;
g_object_set(G_OBJECT(widget), "tooltip-text", _("drag to change black point,\ndoubleclick resets"), (char *)NULL);
}
else
{
d->highlight = 2;
g_object_set(G_OBJECT(widget), "tooltip-text", _("drag to change exposure,\ndoubleclick resets"), (char *)NULL);
}
gtk_widget_queue_draw(widget);
}
gint x, y; // notify gtk for motion_hint.
gdk_window_get_pointer(event->window, &x, &y, NULL);
return TRUE;
}
static gboolean _lib_histogram_motion_notify_callback(GtkWidget *widget, GdkEventMotion *event,
gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available) return TRUE;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
if(d->dragging && d->highlight == 2)
{
float exposure = d->exposure + (event->x - d->button_down_x) * 4.0f / (float)allocation.width;
dt_dev_exposure_set_exposure(darktable.develop, exposure);
}
else if(d->dragging && d->highlight == 1)
{
float black = d->black - (event->x - d->button_down_x) * .1f / (float)allocation.width;
dt_dev_exposure_set_black(darktable.develop, black);
}
else
{
const float offs = 4 * DT_HIST_INSET;
const float x = event->x - offs;
const float y = event->y - DT_HIST_INSET;
const float pos = x / (float)(allocation.width - 2 * offs);
if(pos < 0 || pos > 1.0)
;
else if(x > d->mode_x && x < d->mode_x + d->mode_w && y > d->button_y && y < d->button_y + d->button_h)
{
d->highlight = 3;
switch(darktable.develop->histogram_type)
{
case DT_DEV_HISTOGRAM_LOGARITHMIC:
g_object_set(G_OBJECT(widget), "tooltip-text", _("set histogram mode to linear"), (char *)NULL);
break;
case DT_DEV_HISTOGRAM_LINEAR:
g_object_set(G_OBJECT(widget), "tooltip-text", _("set histogram mode to waveform"), (char *)NULL);
break;
case DT_DEV_HISTOGRAM_WAVEFORM:
g_object_set(G_OBJECT(widget), "tooltip-text", _("set histogram mode to logarithmic"), (char *)NULL);
break;
case DT_DEV_HISTOGRAM_N:
g_assert_not_reached();
}
}
else if(x > d->red_x && x < d->red_x + d->color_w && y > d->button_y && y < d->button_y + d->button_h)
{
d->highlight = 4;
g_object_set(G_OBJECT(widget), "tooltip-text",
d->red ? _("click to hide red channel") : _("click to show red channel"), (char *)NULL);
}
else if(x > d->green_x && x < d->green_x + d->color_w && y > d->button_y && y < d->button_y + d->button_h)
{
d->highlight = 5;
g_object_set(G_OBJECT(widget), "tooltip-text",
d->red ? _("click to hide green channel") : _("click to show green channel"),
(char *)NULL);
}
else if(x > d->blue_x && x < d->blue_x + d->color_w && y > d->button_y && y < d->button_y + d->button_h)
{
d->highlight = 6;
g_object_set(G_OBJECT(widget), "tooltip-text",
d->red ? _("click to hide blue channel") : _("click to show blue channel"), (char *)NULL);
}
else if(pos < 0.2)
{
d->highlight = 1;
g_object_set(G_OBJECT(widget), "tooltip-text", _("drag to change black point,\ndoubleclick resets"),
(char *)NULL);
}
else
{
d->highlight = 2;
g_object_set(G_OBJECT(widget), "tooltip-text", _("drag to change exposure,\ndoubleclick resets"),
(char *)NULL);
}
gtk_widget_queue_draw(widget);
}
gint x, y; // notify gtk for motion_hint.
gdk_window_get_device_position(event->window,
gdk_device_manager_get_client_pointer(
gdk_display_get_device_manager(gdk_window_get_display(event->window))),
&x, &y, NULL);
return TRUE;
}