void _lib_navigation_set_position(dt_lib_module_t *self, double x, double y, int wd, int ht)
{
dt_lib_navigation_t *d = (dt_lib_navigation_t *)self->data;
dt_dev_zoom_t zoom = dt_control_get_dev_zoom();
int closeup = dt_control_get_dev_closeup();
float zoom_x = dt_control_get_dev_zoom_x();
float zoom_y = dt_control_get_dev_zoom_y();
if(d->dragging && zoom != DT_ZOOM_FIT)
{
const int inset = DT_NAVIGATION_INSET;
const float width = wd - 2 * inset, height = ht - 2 * inset;
const dt_develop_t *dev = darktable.develop;
int iwd, iht;
dt_dev_get_processed_size(dev, &iwd, &iht);
zoom_x = fmaxf(
-.5,
fminf(((x - inset) / width - .5f) / (iwd * fminf(wd / (float)iwd, ht / (float)iht) / (float)wd), .5));
zoom_y = fmaxf(
-.5, fminf(((y - inset) / height - .5f) / (iht * fminf(wd / (float)iwd, ht / (float)iht) / (float)ht),
.5));
dt_dev_check_zoom_bounds(darktable.develop, &zoom_x, &zoom_y, zoom, closeup, NULL, NULL);
dt_control_set_dev_zoom_x(zoom_x);
dt_control_set_dev_zoom_y(zoom_y);
/* redraw myself */
gtk_widget_queue_draw(self->widget);
/* redraw pipe */
dt_dev_invalidate(darktable.develop);
dt_control_queue_redraw_center();
}
}
static void _lib_snapshots_add_button_clicked_callback(GtkWidget *widget, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t*)user_data;
dt_lib_snapshots_t *d = (dt_lib_snapshots_t *)self->data;
/* backup last snapshot slot */
dt_lib_snapshot_t last = d->snapshot[d->size-1];
/* rotate slots down to make room for new one on top */
for (int k = d->size-1; k > 0; k--)
{
GtkWidget *b = d->snapshot[k].button;
d->snapshot[k] = d->snapshot[k-1];
d->snapshot[k].button = b;
gtk_button_set_label(GTK_BUTTON(d->snapshot[k].button),
gtk_button_get_label(GTK_BUTTON(d->snapshot[k-1].button)));
}
/* update top slot with new snapshot */
char label[64];
GtkWidget *b = d->snapshot[0].button;
d->snapshot[0] = last;
d->snapshot[0].button = b;
const gchar *name = _("original");
if (darktable.develop->history_end > 0)
{
dt_iop_module_t *module = ((dt_dev_history_item_t *)g_list_nth_data(darktable.develop->history,
darktable.develop->history_end-1))->module;
if (module)
name = module->name();
else
name = _("unknown");
}
g_snprintf(label,sizeof(label),"%s (%d)", name, darktable.develop->history_end);
gtk_button_set_label(GTK_BUTTON(d->snapshot[0].button), label);
dt_lib_snapshot_t *s = d->snapshot + 0;
s->zoom_y = dt_control_get_dev_zoom_y();
s->zoom_x = dt_control_get_dev_zoom_x();
s->zoom = dt_control_get_dev_zoom();
s->closeup = dt_control_get_dev_closeup();
s->zoom_scale = dt_control_get_dev_zoom_scale();
/* update slots used */
if (d->num_snapshots != d->size)
d->num_snapshots++;
/* show active snapshot slots */
for (uint32_t k=0; k < d->num_snapshots; k++)
gtk_widget_show(d->snapshot[k].button);
/* request a new snapshot for top slot */
dt_dev_snapshot_request(darktable.develop, (const char *)&d->snapshot[0].filename);
}
static void _zoom_preset_change(int val)
{
// dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_develop_t *dev = darktable.develop;
if(!dev) return;
dt_dev_zoom_t zoom;
int closeup, procw, proch;
float zoom_x, zoom_y;
zoom = dt_control_get_dev_zoom();
closeup = dt_control_get_dev_closeup();
zoom_x = dt_control_get_dev_zoom_x();
zoom_y = dt_control_get_dev_zoom_y();
dt_dev_get_processed_size(dev, &procw, &proch);
float scale = 0;
zoom_x = 0.0f; //+= (1.0/scale)*(x - .5f*dev->width )/procw;
zoom_y = 0.0f; //+= (1.0/scale)*(y - .5f*dev->height)/proch;
if(val == 0)
{
scale = 0.5 * dt_dev_get_zoom_scale(dev, DT_ZOOM_FIT, 1.0, 0);
zoom = DT_ZOOM_FREE;
}
else if(val == 1)
{
zoom = DT_ZOOM_FIT;
scale = dt_dev_get_zoom_scale(dev, DT_ZOOM_FIT, 1.0, 0);
}
else if(val == 2)
{
scale = dt_dev_get_zoom_scale(dev, DT_ZOOM_1, 1.0, 0);
zoom = DT_ZOOM_1;
}
else if(val == 3)
{
scale = 2.0f;
zoom = DT_ZOOM_FREE;
}
dt_dev_check_zoom_bounds(dev, &zoom_x, &zoom_y, zoom, closeup, NULL, NULL);
dt_control_set_dev_zoom_scale(scale);
dt_control_set_dev_zoom(zoom);
dt_control_set_dev_closeup(closeup);
dt_control_set_dev_zoom_x(zoom_x);
dt_control_set_dev_zoom_y(zoom_y);
dt_dev_invalidate(dev);
dt_control_queue_redraw();
}
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);
}
static gboolean _lib_navigation_expose_callback(GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_navigation_t *d = (dt_lib_navigation_t *)self->data;
const int inset = DT_NAVIGATION_INSET;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
int width = allocation.width, height = allocation.height;
dt_develop_t *dev = darktable.develop;
if(dev->preview_status != DT_DEV_PIXELPIPE_VALID) return FALSE;
/* get the current style */
GtkStyle *style = gtk_rc_get_style_by_paths(gtk_settings_get_default(), NULL, "GtkWidget", GTK_TYPE_WIDGET);
if(!style) style = gtk_rc_get_style(widget);
cairo_surface_t *cst = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
/* fill background */
cairo_set_source_rgb(cr, style->bg[0].red / 65535.0, style->bg[0].green / 65535.0,
style->bg[0].blue / 65535.0);
cairo_paint(cr);
width -= 2 * inset;
height -= 2 * inset;
cairo_translate(cr, inset, inset);
/* draw navigation image if available */
if(dev->preview_pipe->backbuf && (dev->preview_status == DT_DEV_PIXELPIPE_VALID))
{
dt_pthread_mutex_t *mutex = &dev->preview_pipe->backbuf_mutex;
dt_pthread_mutex_lock(mutex);
const int wd = dev->preview_pipe->backbuf_width;
const int ht = dev->preview_pipe->backbuf_height;
const float scale = fminf(width / (float)wd, height / (float)ht);
const int stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, wd);
cairo_surface_t *surface
= cairo_image_surface_create_for_data(dev->preview_pipe->backbuf, CAIRO_FORMAT_RGB24, wd, ht, stride);
cairo_translate(cr, width / 2.0, height / 2.0f);
cairo_scale(cr, scale, scale);
cairo_translate(cr, -.5f * wd, -.5f * ht);
// draw shadow around
float alpha = 1.0f;
for(int k = 0; k < 4; k++)
{
cairo_rectangle(cr, -k / scale, -k / scale, wd + 2 * k / scale, ht + 2 * k / scale);
cairo_set_source_rgba(cr, 0, 0, 0, alpha);
alpha *= 0.6f;
cairo_fill(cr);
}
cairo_rectangle(cr, 0, 0, wd - 2, ht - 1);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_FAST);
cairo_fill(cr);
cairo_surface_destroy(surface);
dt_pthread_mutex_unlock(mutex);
// draw box where we are
dt_dev_zoom_t zoom = dt_control_get_dev_zoom();
int closeup = dt_control_get_dev_closeup();
float zoom_x = dt_control_get_dev_zoom_x();
float zoom_y = dt_control_get_dev_zoom_y();
const float min_scale = dt_dev_get_zoom_scale(dev, DT_ZOOM_FIT, closeup ? 2.0 : 1.0, 0);
const float cur_scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2.0 : 1.0, 0);
// avoid numerical instability for small resolutions:
double h, w;
if(cur_scale > min_scale)
{
float boxw = 1, boxh = 1;
dt_dev_check_zoom_bounds(darktable.develop, &zoom_x, &zoom_y, zoom, closeup, &boxw, &boxh);
cairo_translate(cr, wd * (.5f + zoom_x), ht * (.5f + zoom_y));
cairo_set_source_rgb(cr, 0., 0., 0.);
cairo_set_line_width(cr, 1.f / scale);
boxw *= wd;
boxh *= ht;
cairo_rectangle(cr, -boxw / 2 - 1, -boxh / 2 - 1, boxw + 2, boxh + 2);
cairo_stroke(cr);
cairo_set_source_rgb(cr, 1., 1., 1.);
cairo_rectangle(cr, -boxw / 2, -boxh / 2, boxw, boxh);
cairo_stroke(cr);
}
if(fabsf(cur_scale - min_scale) > 0.001f)
{
/* Zoom % */
cairo_identity_matrix(cr);
cairo_translate(cr, 0, height);
cairo_set_source_rgba(cr, 1., 1., 1., 0.5);
cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, DT_PIXEL_APPLY_DPI(11));
char zoomline[5];
snprintf(zoomline, sizeof(zoomline), "%.0f%%", cur_scale * 100);
cairo_text_extents_t ext;
cairo_text_extents(cr, zoomline, &ext);
h = d->zoom_h = ext.height;
w = d->zoom_w = ext.width;
cairo_move_to(cr, width - w - h * 1.1, 0);
cairo_save(cr);
cairo_set_line_width(cr, 2.0);
cairo_set_source_rgb(cr, style->bg[0].red / 65535.0, style->bg[0].green / 65535.0,
style->bg[0].blue / 65535.0);
cairo_text_path(cr, zoomline);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_fill(cr);
cairo_restore(cr);
}
else
{
// draw the zoom-to-fit icon
cairo_identity_matrix(cr);
cairo_translate(cr, 0, height);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_text_extents_t ext;
cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, DT_PIXEL_APPLY_DPI(11));
cairo_text_extents(cr, "100%", &ext); // dummy text, just to get the height
h = d->zoom_h = ext.height;
w = h * 1.5;
float sp = h * 0.6;
d->zoom_w = w + sp;
cairo_move_to(cr, width - w - h - sp, -1.0 * h);
cairo_rectangle(cr, width - w - h - sp, -1.0 * h, w, h);
cairo_set_source_rgb(cr, 0.2, 0.2, 0.2);
cairo_fill(cr);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_move_to(cr, width - w * 0.8 - h - sp, -1.0 * h);
cairo_line_to(cr, width - w - h - sp, -1.0 * h);
cairo_line_to(cr, width - w - h - sp, -0.7 * h);
cairo_stroke(cr);
cairo_move_to(cr, width - w - h - sp, -0.3 * h);
cairo_line_to(cr, width - w - h - sp, 0);
cairo_line_to(cr, width - w * 0.8 - h - sp, 0);
cairo_stroke(cr);
cairo_move_to(cr, width - w * 0.2 - h - sp, 0);
cairo_line_to(cr, width - h - sp, 0);
cairo_line_to(cr, width - h - sp, -0.3 * h);
cairo_stroke(cr);
cairo_move_to(cr, width - h - sp, -0.7 * h);
cairo_line_to(cr, width - h - sp, -1.0 * h);
cairo_line_to(cr, width - w * 0.2 - h - sp, -1.0 * h);
cairo_stroke(cr);
}
cairo_move_to(cr, width - 0.95 * h, -0.9 * h);
cairo_line_to(cr, width - 0.05 * h, -0.9 * h);
cairo_line_to(cr, width - 0.5 * h, -0.1 * h);
cairo_fill(cr);
}
/* blit memsurface into widget */
cairo_destroy(cr);
cairo_t *cr_pixmap = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_set_source_surface(cr_pixmap, cst, 0, 0);
cairo_paint(cr_pixmap);
cairo_destroy(cr_pixmap);
cairo_surface_destroy(cst);
return TRUE;
}
static void dt_circle_events_post_expose(cairo_t *cr, float zoom_scale, dt_masks_form_gui_t *gui, int index)
{
double dashed[] = { 4.0, 4.0 };
dashed[0] /= zoom_scale;
dashed[1] /= zoom_scale;
int len = sizeof(dashed) / sizeof(dashed[0]);
dt_masks_form_gui_points_t *gpt = (dt_masks_form_gui_points_t *)g_list_nth_data(gui->points, index);
// add a preview when creating a circle
// in creation mode
if(gui->creation)
{
float wd = darktable.develop->preview_pipe->iwidth;
float ht = darktable.develop->preview_pipe->iheight;
if(gui->guipoints_count == 0)
{
dt_masks_form_t *form = darktable.develop->form_visible;
if(!form) return;
float radius1, radius2;
if(form->type & (DT_MASKS_CLONE | DT_MASKS_NON_CLONE))
{
radius1 = dt_conf_get_sanitize_set("plugins/darkroom/spots/circle_size", 0.001f, 0.5f);
radius2 = dt_conf_get_sanitize_set("plugins/darkroom/spots/circle_border", 0.0005f, 0.5f);
}
else
{
radius1 = dt_conf_get_sanitize_set("plugins/darkroom/masks/circle/size", 0.001f, 0.5f);
radius2 = dt_conf_get_sanitize_set("plugins/darkroom/masks/circle/border", 0.0005f, 0.5f);
}
radius2 += radius1;
radius1 *= MIN(wd, ht);
radius2 *= MIN(wd, ht);
float xpos, ypos;
if((gui->posx == -1.f && gui->posy == -1.f) || gui->mouse_leaved_center)
{
const float zoom_x = dt_control_get_dev_zoom_x();
const float zoom_y = dt_control_get_dev_zoom_y();
xpos = (.5f + zoom_x) * darktable.develop->preview_pipe->backbuf_width;
ypos = (.5f + zoom_y) * darktable.develop->preview_pipe->backbuf_height;
}
else
{
xpos = gui->posx;
ypos = gui->posy;
}
cairo_save(cr);
// draw circle
cairo_set_dash(cr, dashed, 0, 0);
cairo_set_line_width(cr, 3.0 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_arc(cr, xpos, ypos, radius1, 0, 2.0 * M_PI);
cairo_stroke_preserve(cr);
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_stroke(cr);
// draw border
cairo_set_dash(cr, dashed, len, 0);
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_arc(cr, xpos, ypos, radius2, 0, 2.0 * M_PI);
cairo_stroke_preserve(cr);
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_set_dash(cr, dashed, len, 4);
cairo_stroke(cr);
// draw a cross where the source will be created
if(form->type & DT_MASKS_CLONE)
{
float x = 0.f, y = 0.f;
dt_masks_calculate_source_pos_value(gui, DT_MASKS_CIRCLE, xpos, ypos, xpos, ypos, &x, &y, FALSE);
dt_masks_draw_clone_source_pos(cr, zoom_scale, x, y);
}
cairo_restore(cr);
}
return;
}
if(!gpt) return;
float dx = 0, dy = 0, dxs = 0, dys = 0;
if((gui->group_selected == index) && gui->form_dragging)
{
dx = gui->posx + gui->dx - gpt->points[0];
dy = gui->posy + gui->dy - gpt->points[1];
}
if((gui->group_selected == index) && gui->source_dragging)
{
dxs = gui->posx + gui->dx - gpt->source[0];
dys = gui->posy + gui->dy - gpt->source[1];
}
if(gpt->points_count > 6)
{
cairo_set_dash(cr, dashed, 0, 0);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 5.0 / zoom_scale);
else
cairo_set_line_width(cr, 3.0 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_move_to(cr, gpt->points[2] + dx, gpt->points[3] + dy);
for(int i = 2; i < gpt->points_count; i++)
{
cairo_line_to(cr, gpt->points[i * 2] + dx, gpt->points[i * 2 + 1] + dy);
}
cairo_line_to(cr, gpt->points[2] + dx, gpt->points[3] + dy);
cairo_stroke_preserve(cr);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 2.0 / zoom_scale);
else
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_stroke(cr);
}
// draw border
if((gui->group_selected == index) && gpt->border_count > 6)
{
cairo_set_dash(cr, dashed, len, 0);
if((gui->group_selected == index) && (gui->border_selected))
cairo_set_line_width(cr, 2.0 / zoom_scale);
else
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_move_to(cr, gpt->border[2] + dx, gpt->border[3] + dy);
for(int i = 2; i < gpt->border_count; i++)
{
cairo_line_to(cr, gpt->border[i * 2] + dx, gpt->border[i * 2 + 1] + dy);
}
cairo_line_to(cr, gpt->border[2] + dx, gpt->border[3] + dy);
cairo_stroke_preserve(cr);
if((gui->group_selected == index) && (gui->border_selected))
cairo_set_line_width(cr, 2.0 / zoom_scale);
else
cairo_set_line_width(cr, 1.0 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_set_dash(cr, dashed, len, 4);
cairo_stroke(cr);
}
// draw the source if any
if(gpt->source_count > 6)
{
const float radius = fabs(gpt->points[2] - gpt->points[0]);
// compute the dest inner circle intersection with the line from source center to dest center.
float cdx = gpt->source[0] + dxs - gpt->points[0] - dx;
float cdy = gpt->source[1] + dys - gpt->points[1] - dy;
// we don't draw the line if source==point
if(cdx != 0.0 && cdy != 0.0)
{
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
float cangle = atan(cdx / cdy);
if(cdy > 0)
cangle = (M_PI / 2) - cangle;
else
cangle = -(M_PI / 2) - cangle;
// (arrowx,arrowy) is the point of intersection, we move it (factor 1.11) a bit farther than the
// inner circle to avoid superposition.
float arrowx = gpt->points[0] + 1.11 * radius * cos(cangle) + dx;
float arrowy = gpt->points[1] + 1.11 * radius * sin(cangle) + dy;
cairo_move_to(cr, gpt->source[0] + dxs, gpt->source[1] + dys); // source center
cairo_line_to(cr, arrowx, arrowy); // dest border
// then draw to line for the arrow itself
const float arrow_scale = 8.0;
cairo_move_to(cr, arrowx + arrow_scale * cos(cangle + (0.4)),
arrowy + arrow_scale * sin(cangle + (0.4)));
cairo_line_to(cr, arrowx, arrowy);
cairo_line_to(cr, arrowx + arrow_scale * cos(cangle - (0.4)),
arrowy + arrow_scale * sin(cangle - (0.4)));
cairo_set_dash(cr, dashed, 0, 0);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 2.5 / zoom_scale);
else
cairo_set_line_width(cr, 1.5 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_stroke_preserve(cr);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 1.0 / zoom_scale);
else
cairo_set_line_width(cr, 0.5 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_stroke(cr);
}
// we draw the source
cairo_set_dash(cr, dashed, 0, 0);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 2.5 / zoom_scale);
else
cairo_set_line_width(cr, 1.5 / zoom_scale);
cairo_set_source_rgba(cr, .3, .3, .3, .8);
cairo_move_to(cr, gpt->source[2] + dxs, gpt->source[3] + dys);
for(int i = 2; i < gpt->source_count; i++)
{
cairo_line_to(cr, gpt->source[i * 2] + dxs, gpt->source[i * 2 + 1] + dys);
}
cairo_line_to(cr, gpt->source[2] + dxs, gpt->source[3] + dys);
cairo_stroke_preserve(cr);
if((gui->group_selected == index) && (gui->form_selected || gui->form_dragging))
cairo_set_line_width(cr, 1.0 / zoom_scale);
else
cairo_set_line_width(cr, 0.5 / zoom_scale);
cairo_set_source_rgba(cr, .8, .8, .8, .8);
cairo_stroke(cr);
}
}
static gboolean _lib_navigation_draw_callback(GtkWidget *widget, cairo_t *crf, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_navigation_t *d = (dt_lib_navigation_t *)self->data;
const int inset = DT_NAVIGATION_INSET;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
int width = allocation.width, height = allocation.height;
dt_develop_t *dev = darktable.develop;
/* double buffering of image data: only take new data if valid */
if(dev->preview_pipe->backbuf && dev->preview_status == DT_DEV_PIXELPIPE_VALID)
{
/* re-allocate in case of changed image dimensions */
if(d->buffer == NULL || dev->preview_pipe->backbuf_width != d->wd || dev->preview_pipe->backbuf_height != d->ht)
{
g_free(d->buffer);
d->wd = dev->preview_pipe->backbuf_width;
d->ht = dev->preview_pipe->backbuf_height;
d->buffer = g_malloc0((size_t)d->wd * d->ht * 4 * sizeof(unsigned char));
}
/* update buffer if new data is available */
if(d->buffer && dev->preview_pipe->input_timestamp > d->timestamp)
{
dt_pthread_mutex_t *mutex = &dev->preview_pipe->backbuf_mutex;
dt_pthread_mutex_lock(mutex);
memcpy(d->buffer, dev->preview_pipe->backbuf, (size_t)d->wd * d->ht * 4 * sizeof(unsigned char));
d->timestamp = dev->preview_pipe->input_timestamp;
dt_pthread_mutex_unlock(mutex);
}
}
/* get the current style */
cairo_surface_t *cst = dt_cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
GtkStyleContext *context = gtk_widget_get_style_context(widget);
gtk_render_background(context, cr, 0, 0, allocation.width, allocation.height);
width -= 2 * inset;
height -= 2 * inset;
cairo_translate(cr, inset, inset);
/* draw navigation image if available */
if(d->buffer)
{
cairo_save(cr);
const int wd = d->wd;
const int ht = d->ht;
const float scale = fminf(width / (float)wd, height / (float)ht);
const int stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, wd);
cairo_surface_t *surface
= cairo_image_surface_create_for_data(d->buffer, CAIRO_FORMAT_RGB24, wd, ht, stride);
cairo_translate(cr, width / 2.0, height / 2.0f);
cairo_scale(cr, scale, scale);
cairo_translate(cr, -.5f * wd, -.5f * ht);
// draw shadow around
float alpha = 1.0f;
for(int k = 0; k < 4; k++)
{
cairo_rectangle(cr, -k / scale, -k / scale, wd + 2 * k / scale, ht + 2 * k / scale);
cairo_set_source_rgba(cr, 0, 0, 0, alpha);
alpha *= 0.6f;
cairo_fill(cr);
}
cairo_rectangle(cr, 0, 0, wd - 2, ht - 1);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_FAST);
cairo_fill(cr);
cairo_surface_destroy(surface);
// draw box where we are
dt_dev_zoom_t zoom = dt_control_get_dev_zoom();
int closeup = dt_control_get_dev_closeup();
float zoom_x = dt_control_get_dev_zoom_x();
float zoom_y = dt_control_get_dev_zoom_y();
const float min_scale = dt_dev_get_zoom_scale(dev, DT_ZOOM_FIT, closeup ? 2.0 : 1.0, 0);
const float cur_scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2.0 : 1.0, 0);
// avoid numerical instability for small resolutions:
double h, w;
if(cur_scale > min_scale)
{
float boxw = 1, boxh = 1;
dt_dev_check_zoom_bounds(darktable.develop, &zoom_x, &zoom_y, zoom, closeup, &boxw, &boxh);
cairo_translate(cr, wd * (.5f + zoom_x), ht * (.5f + zoom_y));
cairo_set_source_rgb(cr, 0., 0., 0.);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.f / scale));
boxw *= wd;
boxh *= ht;
cairo_rectangle(cr, -boxw / 2 - 1, -boxh / 2 - 1, boxw + 2, boxh + 2);
cairo_stroke(cr);
cairo_set_source_rgb(cr, 1., 1., 1.);
cairo_rectangle(cr, -boxw / 2, -boxh / 2, boxw, boxh);
cairo_stroke(cr);
}
cairo_restore(cr);
if(fabsf(cur_scale - min_scale) > 0.001f)
{
/* Zoom % */
PangoLayout *layout;
PangoRectangle ink;
PangoFontDescription *desc = pango_font_description_copy_static(darktable.bauhaus->pango_font_desc);
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
layout = pango_cairo_create_layout(cr);
const float fontsize = DT_PIXEL_APPLY_DPI(11);
pango_font_description_set_absolute_size(desc, fontsize * PANGO_SCALE);
pango_layout_set_font_description(layout, desc);
cairo_translate(cr, 0, height);
cairo_set_source_rgba(cr, 1., 1., 1., 0.5);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
char zoomline[5];
snprintf(zoomline, sizeof(zoomline), "%.0f%%", cur_scale * 100);
pango_layout_set_text(layout, zoomline, -1);
pango_layout_get_pixel_extents(layout, &ink, NULL);
h = d->zoom_h = ink.height;
w = d->zoom_w = ink.width;
cairo_move_to(cr, width - w - h * 1.1 - ink.x, - fontsize);
cairo_save(cr);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(2.0));
GdkRGBA *color;
gtk_style_context_get(context, gtk_widget_get_state_flags(widget), "background-color", &color, NULL);
gdk_cairo_set_source_rgba(cr, color);
pango_cairo_layout_path(cr, layout);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_fill(cr);
cairo_restore(cr);
gdk_rgba_free(color);
pango_font_description_free(desc);
g_object_unref(layout);
}
else
{
// draw the zoom-to-fit icon
cairo_translate(cr, 0, height);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
static int height = -1;
if(height == -1)
{
PangoLayout *layout;
PangoRectangle ink;
PangoFontDescription *desc = pango_font_description_copy_static(darktable.bauhaus->pango_font_desc);
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
layout = pango_cairo_create_layout(cr);
pango_font_description_set_absolute_size(desc, DT_PIXEL_APPLY_DPI(11) * PANGO_SCALE);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, "100%", -1); // dummy text, just to get the height
pango_layout_get_pixel_extents(layout, &ink, NULL);
height = ink.height;
pango_font_description_free(desc);
g_object_unref(layout);
}
h = d->zoom_h = height;
w = h * 1.5;
float sp = h * 0.6;
d->zoom_w = w + sp;
cairo_move_to(cr, width - w - h - sp, -1.0 * h);
cairo_rectangle(cr, width - w - h - sp, -1.0 * h, w, h);
cairo_set_source_rgb(cr, 0.2, 0.2, 0.2);
cairo_fill(cr);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(2.0));
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_move_to(cr, width - w * 0.8 - h - sp, -1.0 * h);
cairo_line_to(cr, width - w - h - sp, -1.0 * h);
cairo_line_to(cr, width - w - h - sp, -0.7 * h);
cairo_stroke(cr);
cairo_move_to(cr, width - w - h - sp, -0.3 * h);
cairo_line_to(cr, width - w - h - sp, 0);
cairo_line_to(cr, width - w * 0.8 - h - sp, 0);
cairo_stroke(cr);
cairo_move_to(cr, width - w * 0.2 - h - sp, 0);
cairo_line_to(cr, width - h - sp, 0);
cairo_line_to(cr, width - h - sp, -0.3 * h);
cairo_stroke(cr);
cairo_move_to(cr, width - h - sp, -0.7 * h);
cairo_line_to(cr, width - h - sp, -1.0 * h);
cairo_line_to(cr, width - w * 0.2 - h - sp, -1.0 * h);
cairo_stroke(cr);
}
cairo_move_to(cr, width - 0.95 * h, -0.9 * h);
cairo_line_to(cr, width - 0.05 * h, -0.9 * h);
cairo_line_to(cr, width - 0.5 * h, -0.1 * h);
cairo_fill(cr);
}
/* blit memsurface into widget */
cairo_destroy(cr);
cairo_set_source_surface(crf, cst, 0, 0);
cairo_paint(crf);
cairo_surface_destroy(cst);
return TRUE;
}
