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;
int closeup;
float zoom_x, zoom_y;
DT_CTL_GET_GLOBAL(zoom, dev_zoom);
DT_CTL_GET_GLOBAL(closeup, dev_closeup);
DT_CTL_GET_GLOBAL(zoom_x, dev_zoom_x);
DT_CTL_GET_GLOBAL(zoom_y, 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_CTL_SET_GLOBAL(dev_zoom_x, zoom_x);
DT_CTL_SET_GLOBAL(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();
}
}
float dt_dev_get_zoom_scale(dt_develop_t *dev, dt_dev_zoom_t zoom, int closeup_factor, int preview)
{
float zoom_scale;
// set processed width to something useful while image is not there yet:
int procw, proch;
dt_dev_get_processed_size(dev, &procw, &proch);
const float w = preview ? dev->preview_pipe->backbuf_width : procw;
const float h = preview ? dev->preview_pipe->backbuf_height : proch;
switch(zoom)
{
case DT_ZOOM_FIT:
zoom_scale = fminf(dev->width/w, dev->height/h);
break;
case DT_ZOOM_FILL:
zoom_scale = fmaxf(dev->width/w, dev->height/h);
break;
case DT_ZOOM_1:
zoom_scale = closeup_factor;
if(preview) zoom_scale *= dev->preview_pipe->iscale / dev->preview_downsampling;
break;
default: // DT_ZOOM_FREE
DT_CTL_GET_GLOBAL(zoom_scale, dev_zoom_scale);
if(preview) zoom_scale *= dev->preview_pipe->iscale / dev->preview_downsampling;
break;
}
return zoom_scale;
}
void scrolled(dt_view_t *self, double x, double y, int up, int state)
{
const int32_t capwd = darktable.thumbnail_width;
const int32_t capht = darktable.thumbnail_height;
dt_develop_t *dev = (dt_develop_t *)self->data;
const int32_t width_i = self->width;
const int32_t height_i = self->height;
if(width_i > capwd) x += (capwd-width_i) *.5f;
if(height_i > capht) y += (capht-height_i)*.5f;
int handled = 0;
if(dev->gui_module && dev->gui_module->scrolled) handled = dev->gui_module->scrolled(dev->gui_module, x, y, up, state);
if(handled) return;
// free zoom
dt_dev_zoom_t zoom;
int closeup, procw, proch;
float zoom_x, zoom_y;
DT_CTL_GET_GLOBAL(zoom, dev_zoom);
DT_CTL_GET_GLOBAL(closeup, dev_closeup);
DT_CTL_GET_GLOBAL(zoom_x, dev_zoom_x);
DT_CTL_GET_GLOBAL(zoom_y, dev_zoom_y);
dt_dev_get_processed_size(dev, &procw, &proch);
float scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2.0 : 1.0, 0);
const float minscale = dt_dev_get_zoom_scale(dev, DT_ZOOM_FIT, 1.0, 0);
// offset from center now (current zoom_{x,y} points there)
float mouse_off_x = x - .5*dev->width, mouse_off_y = y - .5*dev->height;
zoom_x += mouse_off_x/(procw*scale);
zoom_y += mouse_off_y/(proch*scale);
zoom = DT_ZOOM_FREE;
closeup = 0;
if(up)
{
if (scale == 1.0f) return;
else scale += .1f*(1.0f - minscale);
}
else
{
if (scale == minscale) return;
else scale -= .1f*(1.0f - minscale);
}
DT_CTL_SET_GLOBAL(dev_zoom_scale, scale);
if(scale > 0.99) zoom = DT_ZOOM_1;
if(scale < minscale + 0.01) zoom = DT_ZOOM_FIT;
if(zoom != DT_ZOOM_1)
{
zoom_x -= mouse_off_x/(procw*scale);
zoom_y -= mouse_off_y/(proch*scale);
}
dt_dev_check_zoom_bounds(dev, &zoom_x, &zoom_y, zoom, closeup, NULL, NULL);
DT_CTL_SET_GLOBAL(dev_zoom, zoom);
DT_CTL_SET_GLOBAL(dev_closeup, closeup);
if(zoom != DT_ZOOM_1)
{
DT_CTL_SET_GLOBAL(dev_zoom_x, zoom_x);
DT_CTL_SET_GLOBAL(dev_zoom_y, zoom_y);
}
dt_dev_invalidate(dev);
dt_control_queue_redraw();
}
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 dt_dev_get_pointer_zoom_pos(dt_develop_t *dev, const float px, const float py, float *zoom_x, float *zoom_y)
{
dt_dev_zoom_t zoom;
int closeup, procw, proch;
float zoom2_x, zoom2_y;
DT_CTL_GET_GLOBAL(zoom, dev_zoom);
DT_CTL_GET_GLOBAL(closeup, dev_closeup);
DT_CTL_GET_GLOBAL(zoom2_x, dev_zoom_x);
DT_CTL_GET_GLOBAL(zoom2_y, dev_zoom_y);
dt_dev_get_processed_size(dev, &procw, &proch);
const float scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2.0 : 1.0, 0);
// offset from center now (current zoom_{x,y} points there)
const float mouse_off_x = px - .5*dev->width, mouse_off_y = py - .5*dev->height;
zoom2_x += mouse_off_x/(procw*scale);
zoom2_y += mouse_off_y/(proch*scale);
*zoom_x = zoom2_x;
*zoom_y = zoom2_y;
}
void dt_dev_check_zoom_bounds(dt_develop_t *dev, float *zoom_x, float *zoom_y, dt_dev_zoom_t zoom, int closeup, float *boxww, float *boxhh)
{
int procw, proch;
dt_dev_get_processed_size(dev, &procw, &proch);
float boxw = 1, boxh = 1; // viewport in normalised space
// if(zoom == DT_ZOOM_1)
// {
// const float imgw = (closeup ? 2 : 1)*procw;
// const float imgh = (closeup ? 2 : 1)*proch;
// const float devw = MIN(imgw, dev->width);
// const float devh = MIN(imgh, dev->height);
// boxw = fminf(1.0, devw/imgw);
// boxh = fminf(1.0, devh/imgh);
// }
if(zoom == DT_ZOOM_FIT)
{
*zoom_x = *zoom_y = 0.0f;
boxw = boxh = 1.0f;
}
else
{
const float scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2 : 1, 0);
const float imgw = procw;
const float imgh = proch;
const float devw = dev->width;
const float devh = dev->height;
boxw = devw/(imgw*scale);
boxh = devh/(imgh*scale);
}
if(*zoom_x < boxw/2 - .5) *zoom_x = boxw/2 - .5;
if(*zoom_x > .5 - boxw/2) *zoom_x = .5 - boxw/2;
if(*zoom_y < boxh/2 - .5) *zoom_y = boxh/2 - .5;
if(*zoom_y > .5 - boxh/2) *zoom_y = .5 - boxh/2;
if(boxw > 1.0) *zoom_x = 0.f;
if(boxh > 1.0) *zoom_y = 0.f;
if(boxww) *boxww = boxw;
if(boxhh) *boxhh = boxh;
}
int button_pressed(dt_view_t *self, double x, double y, int which, int type, uint32_t state)
{
const int32_t capwd = darktable.thumbnail_width;
const int32_t capht = darktable.thumbnail_height;
dt_develop_t *dev = (dt_develop_t *)self->data;
const int32_t width_i = self->width;
const int32_t height_i = self->height;
if(width_i > capwd) x += (capwd-width_i) *.5f;
if(height_i > capht) y += (capht-height_i)*.5f;
int handled = 0;
if(dev->gui_module && dev->gui_module->request_color_pick && which == 1)
{
float zoom_x, zoom_y;
dt_dev_get_pointer_zoom_pos(dev, x, y, &zoom_x, &zoom_y);
if(darktable.lib->proxy.colorpicker.size)
{
dev->gui_module->color_picker_box[0] = .5f+zoom_x;
dev->gui_module->color_picker_box[1] = .5f+zoom_y;
dev->gui_module->color_picker_box[2] = .5f+zoom_x;
dev->gui_module->color_picker_box[3] = .5f+zoom_y;
}
else
{
dev->gui_module->color_picker_point[0] = .5f+zoom_x;
dev->gui_module->color_picker_point[1] = .5f+zoom_y;
dev->preview_pipe->changed |= DT_DEV_PIPE_SYNCH;
dt_dev_invalidate_all(dev);
}
dt_control_queue_redraw();
return 1;
}
if(dev->gui_module && dev->gui_module->button_pressed) handled = dev->gui_module->button_pressed(dev->gui_module, x, y, which, type, state);
if(handled) return handled;
if(which == 1 && type == GDK_2BUTTON_PRESS) return 0;
if(which == 1)
{
dt_control_change_cursor(GDK_HAND1);
return 1;
}
if(which == 2)
{
// zoom to 1:1 2:1 and back
dt_dev_zoom_t zoom;
int closeup, procw, proch;
float zoom_x, zoom_y;
DT_CTL_GET_GLOBAL(zoom, dev_zoom);
DT_CTL_GET_GLOBAL(closeup, dev_closeup);
DT_CTL_GET_GLOBAL(zoom_x, dev_zoom_x);
DT_CTL_GET_GLOBAL(zoom_y, dev_zoom_y);
dt_dev_get_processed_size(dev, &procw, &proch);
const float scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2 : 1, 0);
zoom_x += (1.0/scale)*(x - .5f*dev->width )/procw;
zoom_y += (1.0/scale)*(y - .5f*dev->height)/proch;
if(zoom == DT_ZOOM_1)
{
if(!closeup) closeup = 1;
else
{
zoom = DT_ZOOM_FIT;
zoom_x = zoom_y = 0.0f;
closeup = 0;
}
}
else zoom = DT_ZOOM_1;
dt_dev_check_zoom_bounds(dev, &zoom_x, &zoom_y, zoom, closeup, NULL, NULL);
DT_CTL_SET_GLOBAL(dev_zoom, zoom);
DT_CTL_SET_GLOBAL(dev_closeup, closeup);
DT_CTL_SET_GLOBAL(dev_zoom_x, zoom_x);
DT_CTL_SET_GLOBAL(dev_zoom_y, zoom_y);
dt_dev_invalidate(dev);
return 1;
}
return 0;
}
void mouse_moved(dt_view_t *self, double x, double y, int which)
{
const int32_t capwd = darktable.thumbnail_width;
const int32_t capht = darktable.thumbnail_height;
dt_develop_t *dev = (dt_develop_t *)self->data;
// if we are not hovering over a thumbnail in the filmstrip -> show metadata of opened image.
int32_t mouse_over_id = -1;
DT_CTL_GET_GLOBAL(mouse_over_id, lib_image_mouse_over_id);
if(mouse_over_id == -1)
{
mouse_over_id = dev->image_storage.id;
DT_CTL_SET_GLOBAL(lib_image_mouse_over_id, mouse_over_id);
}
dt_control_t *ctl = darktable.control;
const int32_t width_i = self->width;
const int32_t height_i = self->height;
int32_t offx = 0.0f, offy = 0.0f;
if(width_i > capwd) offx = (capwd-width_i) *.5f;
if(height_i > capht) offy = (capht-height_i)*.5f;
int handled = 0;
x += offx;
y += offy;
if(dev->gui_module && dev->gui_module->request_color_pick &&
ctl->button_down &&
ctl->button_down_which == 1)
{
// module requested a color box
float zoom_x, zoom_y, bzoom_x, bzoom_y;
dt_dev_get_pointer_zoom_pos(dev, x, y, &zoom_x, &zoom_y);
dt_dev_get_pointer_zoom_pos(dev, ctl->button_x + offx, ctl->button_y + offy, &bzoom_x, &bzoom_y);
if(darktable.lib->proxy.colorpicker.size)
{
dev->gui_module->color_picker_box[0] = fmaxf(0.0, fminf(.5f+bzoom_x, .5f+zoom_x));
dev->gui_module->color_picker_box[1] = fmaxf(0.0, fminf(.5f+bzoom_y, .5f+zoom_y));
dev->gui_module->color_picker_box[2] = fminf(1.0, fmaxf(.5f+bzoom_x, .5f+zoom_x));
dev->gui_module->color_picker_box[3] = fminf(1.0, fmaxf(.5f+bzoom_y, .5f+zoom_y));
}
else
{
dev->gui_module->color_picker_point[0] = .5f + zoom_x;
dev->gui_module->color_picker_point[1] = .5f + zoom_y;
}
dev->preview_pipe->changed |= DT_DEV_PIPE_SYNCH;
dt_dev_invalidate_all(dev);
dt_control_queue_redraw();
return;
}
if(dev->gui_module && dev->gui_module->mouse_moved) handled = dev->gui_module->mouse_moved(dev->gui_module, x, y, which);
if(handled) return;
if(darktable.control->button_down && darktable.control->button_down_which == 1)
{
// depending on dev_zoom, adjust dev_zoom_x/y.
dt_dev_zoom_t zoom;
int closeup;
DT_CTL_GET_GLOBAL(zoom, dev_zoom);
DT_CTL_GET_GLOBAL(closeup, dev_closeup);
int procw, proch;
dt_dev_get_processed_size(dev, &procw, &proch);
const float scale = dt_dev_get_zoom_scale(dev, zoom, closeup ? 2 : 1, 0);
float old_zoom_x, old_zoom_y;
DT_CTL_GET_GLOBAL(old_zoom_x, dev_zoom_x);
DT_CTL_GET_GLOBAL(old_zoom_y, dev_zoom_y);
float zx = old_zoom_x - (1.0/scale)*(x - ctl->button_x - offx)/procw;
float zy = old_zoom_y - (1.0/scale)*(y - ctl->button_y - offy)/proch;
dt_dev_check_zoom_bounds(dev, &zx, &zy, zoom, closeup, NULL, NULL);
DT_CTL_SET_GLOBAL(dev_zoom_x, zx);
DT_CTL_SET_GLOBAL(dev_zoom_y, zy);
ctl->button_x = x - offx;
ctl->button_y = y - offy;
dt_dev_invalidate(dev);
dt_control_queue_redraw();
}
}
