int button_released(struct dt_iop_module_t *self, double x, double y, int which, uint32_t state)
{
dt_iop_graduatednd_gui_data_t *g = (dt_iop_graduatednd_gui_data_t *)self->gui_data;
dt_iop_graduatednd_params_t *p = (dt_iop_graduatednd_params_t *)self->params;
if (g->dragging > 0)
{
//dt_iop_graduatednd_params_t *p = (dt_iop_graduatednd_params_t *)self->params;
//float wd = self->dev->preview_pipe->backbuf_width;
//float ht = self->dev->preview_pipe->backbuf_height;
float pzx, pzy;
dt_dev_get_pointer_zoom_pos(self->dev, x, y, &pzx, &pzy);
pzx += 0.5f;
pzy += 0.5f;
float r=0.0,o=0.0;
//float pts[4];
//dt_dev_distort_backtransform(self->dev,pts,2);
set_grad_from_points(self,g->xa,g->ya,g->xb,g->yb,&r, &o);
//if this is a "line dragging, we reset extremities, to be sure they are not outside the image
if (g->dragging == 3) set_points_from_grad(self,&g->xa,&g->ya,&g->xb,&g->yb,r,o);
self->dt->gui->reset = 1;
dt_bauhaus_slider_set(g->scale3,r);
//dt_bauhaus_slider_set(g->scale4,o);
self->dt->gui->reset = 0;
p->rotation = r;
p->offset = o;
g->dragging = 0;
dt_dev_add_history_item(darktable.develop, self, TRUE);
}
g->dragging = 0;
return 0;
}
static void rotation_callback(GtkWidget *slider, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
if(self->dt->gui->reset) return;
dt_iop_graduatednd_params_t *p = (dt_iop_graduatednd_params_t *)self->params;
dt_iop_graduatednd_gui_data_t *g = (dt_iop_graduatednd_gui_data_t *)self->gui_data;
// float wd = self->dev->preview_pipe->backbuf_width;
// float ht = self->dev->preview_pipe->backbuf_height;
p->rotation = dt_bauhaus_slider_get(slider);
set_points_from_grad(self, &g->xa, &g->ya, &g->xb, &g->yb, p->rotation, p->offset);
dt_dev_add_history_item(darktable.develop, self, TRUE);
}
void gui_post_expose(struct dt_iop_module_t *self, cairo_t *cr, int32_t width, int32_t height,
int32_t pointerx, int32_t pointery)
{
dt_develop_t *dev = self->dev;
dt_iop_graduatednd_gui_data_t *g = (dt_iop_graduatednd_gui_data_t *)self->gui_data;
dt_iop_graduatednd_params_t *p = (dt_iop_graduatednd_params_t *)self->params;
float wd = dev->preview_pipe->backbuf_width;
float ht = dev->preview_pipe->backbuf_height;
float zoom_y = dt_control_get_dev_zoom_y();
float zoom_x = dt_control_get_dev_zoom_x();
dt_dev_zoom_t zoom = dt_control_get_dev_zoom();
int closeup = dt_control_get_dev_closeup();
float zoom_scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2 : 1, 1);
cairo_translate(cr, width / 2.0, height / 2.0f);
cairo_scale(cr, zoom_scale, zoom_scale);
cairo_translate(cr, -.5f * wd - zoom_x * wd, -.5f * ht - zoom_y * ht);
// we get the extremities of the line
if(g->define == 0)
{
if(!set_points_from_grad(self, &g->xa, &g->ya, &g->xb, &g->yb, p->rotation, p->offset)) return;
g->define = 1;
}
float xa = g->xa * wd, xb = g->xb * wd, ya = g->ya * ht, yb = g->yb * ht;
// the lines
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
if(g->selected == 3 || g->dragging == 3)
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(5.0) / zoom_scale);
else
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(3.0) / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_move_to(cr, xa, ya);
cairo_line_to(cr, xb, yb);
cairo_stroke(cr);
if(g->selected == 3 || g->dragging == 3)
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(2.0) / zoom_scale);
else
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.0) / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_move_to(cr, xa, ya);
cairo_line_to(cr, xb, yb);
cairo_stroke(cr);
// the extremities
float x1, y1, x2, y2;
float l = sqrt((xb - xa) * (xb - xa) + (yb - ya) * (yb - ya));
const float ext = wd * 0.01f / zoom_scale;
x1 = xa + (xb - xa) * ext / l;
y1 = ya + (yb - ya) * ext / l;
x2 = (xa + x1) / 2.0;
y2 = (ya + y1) / 2.0;
y2 += (x1 - xa);
x2 -= (y1 - ya);
cairo_move_to(cr, xa, ya);
cairo_line_to(cr, x1, y1);
cairo_line_to(cr, x2, y2);
cairo_close_path(cr);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.0) / zoom_scale);
if(g->selected == 1 || g->dragging == 1)
cairo_set_source_rgba(cr, .8, .8, .8, 1.0);
else
cairo_set_source_rgba(cr, .8, .8, .8, .5);
cairo_fill_preserve(cr);
if(g->selected == 1 || g->dragging == 1)
cairo_set_source_rgba(cr, .3, .3, .3, 1.0);
else
cairo_set_source_rgba(cr, .3, .3, .3, .5);
cairo_stroke(cr);
x1 = xb - (xb - xa) * ext / l;
y1 = yb - (yb - ya) * ext / l;
x2 = (xb + x1) / 2.0;
y2 = (yb + y1) / 2.0;
y2 += (xb - x1);
x2 -= (yb - y1);
cairo_move_to(cr, xb, yb);
cairo_line_to(cr, x1, y1);
cairo_line_to(cr, x2, y2);
cairo_close_path(cr);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.0) / zoom_scale);
if(g->selected == 2 || g->dragging == 2)
cairo_set_source_rgba(cr, .8, .8, .8, 1.0);
else
cairo_set_source_rgba(cr, .8, .8, .8, .5);
cairo_fill_preserve(cr);
if(g->selected == 2 || g->dragging == 2)
cairo_set_source_rgba(cr, .3, .3, .3, 1.0);
else
cairo_set_source_rgba(cr, .3, .3, .3, .5);
cairo_stroke(cr);
}
