C++ (Cpp) dt_iop_levels_move_handleの例

コード例 #1

ファイル: levels.c プロジェクト: AdamMajer/darktable

static gboolean dt_iop_levels_scroll(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
  dt_iop_module_t *self = (dt_iop_module_t *)user_data;
  dt_iop_levels_gui_data_t *c = (dt_iop_levels_gui_data_t *)self->gui_data;
  dt_iop_levels_params_t *p = (dt_iop_levels_params_t *)self->params;

  const float interval = 0.002; // Distance moved for each scroll event
  gboolean updated = FALSE;
  float new_position = 0;

  if(c->dragging)
  {
    return FALSE;
  }

  if(event->direction == GDK_SCROLL_UP)
  {
    new_position = p->levels[c->handle_move] + interval;
    updated = TRUE;
  }
  else if(event->direction == GDK_SCROLL_DOWN)
  {
    new_position = p->levels[c->handle_move] - interval;
    updated = TRUE;
  }

  if(updated)
  {
    dt_iop_levels_move_handle(self, c->handle_move, new_position, p->levels, c->drag_start_percentage);
    dt_dev_add_history_item(darktable.develop, self, TRUE);
    return TRUE;
  }

  return FALSE;
}

コード例 #2

ファイル: levels.c プロジェクト: christte/darktable

static gboolean dt_iop_levels_scroll(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
  dt_iop_module_t *self = (dt_iop_module_t *)user_data;
  dt_iop_levels_gui_data_t *c = (dt_iop_levels_gui_data_t *)self->gui_data;
  dt_iop_levels_params_t *p = (dt_iop_levels_params_t *)self->params;

  dt_iop_color_picker_reset(self, TRUE);

  if(c->dragging)
  {
    return FALSE;
  }

  const float interval = 0.002; // Distance moved for each scroll event
  gdouble delta_y;
  if(dt_gui_get_scroll_deltas(event, NULL, &delta_y))
  {
    float new_position = p->levels[c->handle_move] - interval * delta_y;
    dt_iop_levels_move_handle(self, c->handle_move, new_position, p->levels, c->drag_start_percentage);
    dt_dev_add_history_item(darktable.develop, self, TRUE);
    return TRUE;
  }

  return FALSE;
}

コード例 #3

ファイル: levels.c プロジェクト: christte/darktable

static gboolean dt_iop_levels_motion_notify(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
{
  dt_iop_module_t *self = (dt_iop_module_t *)user_data;
  dt_iop_levels_gui_data_t *c = (dt_iop_levels_gui_data_t *)self->gui_data;
  dt_iop_levels_params_t *p = (dt_iop_levels_params_t *)self->params;
  const int inset = DT_GUI_CURVE_EDITOR_INSET;
  GtkAllocation allocation;
  gtk_widget_get_allocation(widget, &allocation);
  int height = allocation.height - 2 * inset, width = allocation.width - 2 * inset;
  if(!c->dragging)
  {
    c->mouse_x = CLAMP(event->x - inset, 0, width);
    c->drag_start_percentage = (p->levels[1] - p->levels[0]) / (p->levels[2] - p->levels[0]);
  }
  c->mouse_y = CLAMP(event->y - inset, 0, height);

  if(c->dragging)
  {
    if(c->handle_move >= 0 && c->handle_move < 3)
    {
      const float mx = (CLAMP(event->x - inset, 0, width)) / (float)width;

      dt_iop_levels_move_handle(self, c->handle_move, mx, p->levels, c->drag_start_percentage);
    }
    dt_dev_add_history_item(darktable.develop, self, TRUE);
  }
  else
  {
    c->handle_move = 0;
    const float mx = CLAMP(event->x - inset, 0, width) / (float)width;
    float dist = fabsf(p->levels[0] - mx);
    for(int k = 1; k < 3; k++)
    {
      float d2 = fabsf(p->levels[k] - mx);
      if(d2 < dist)
      {
        c->handle_move = k;
        dist = d2;
      }
    }
  }
  gtk_widget_queue_draw(widget);

  gint x, y;
#if GTK_CHECK_VERSION(3, 20, 0)
  gdk_window_get_device_position(event->window,
      gdk_seat_get_pointer(gdk_display_get_default_seat(gtk_widget_get_display(widget))),
      &x, &y, 0);
#else
  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);
#endif
  return TRUE;
}

コード例 #4

static gboolean dt_iop_levels_motion_notify(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
{
  dt_iop_module_t *self = (dt_iop_module_t *)user_data;
  dt_iop_levels_gui_data_t *c = (dt_iop_levels_gui_data_t *)self->gui_data;
  dt_iop_levels_params_t *p = (dt_iop_levels_params_t *)self->params;
  const int inset = DT_GUI_CURVE_EDITOR_INSET;
  int height = widget->allocation.height - 2*inset, width = widget->allocation.width - 2*inset;
  if(!c->dragging)
  {
    c->mouse_x = CLAMP(event->x - inset, 0, width);
    c->drag_start_percentage = (p->levels[1] - p->levels[0])
                               / (p->levels[2] - p->levels[0]);
  }
  c->mouse_y = CLAMP(event->y - inset, 0, height);

  if(c->dragging)
  {
    if(c->handle_move >= 0 && c->handle_move < 3)
    {
      const float mx = (CLAMP(event->x - inset, 0, width)) / (float)width;

      dt_iop_levels_move_handle(c->handle_move, mx, p->levels, c->drag_start_percentage);
    }
    dt_dev_add_history_item(darktable.develop, self, TRUE);
  }
  else
  {
    c->handle_move = 0;
    const float mx = CLAMP(event->x - inset, 0, width)/(float)width;
    float dist = fabsf(p->levels[0] - mx);
    for(int k=1; k<3; k++)
    {
      float d2 = fabsf(p->levels[k] - mx);
      if(d2 < dist)
      {
        c->handle_move = k;
        dist = d2;
      }
    }
  }
  gtk_widget_queue_draw(widget);

  gint x, y;
  gdk_window_get_pointer(event->window, &x, &y, NULL);
  return TRUE;
}