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Pipette and "On Preview Widgets" branch. See issue 227

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The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
This commit is contained in:
Hombre
2014-01-21 23:37:36 +01:00
commit 8b2eac9a3d
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rtgui/shcselector.cc Normal file
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/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
*
* RawTherapee is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RawTherapee is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
*/
#include "shcselector.h"
#include "multilangmgr.h"
#include <iomanip>
#include "mycurve.h"
SHCSelector::SHCSelector() : ColoredBar(RTO_Left2Right), movingPosition(-1), cl(NULL) {
positions[0] = defaults[0] = 0.25;
positions[1] = defaults[1] = 0.5;
positions[2] = defaults[2] = 0.75;
leftMargin = RADIUS;
rightMargin = RADIUS;
// TODO: This is a hack :) ; change this name to a specific one and create a new entry in all gtkrc theme files
set_name("ThresholdSelector");
set_can_focus(false);
set_size_request (-1, 12);
set_tooltip_text(M("SHCSELECTOR_TOOLTIP"));
}
void SHCSelector::setMargins(int left, int right) {
leftMargin = left;
rightMargin = right;
}
void SHCSelector::setDefaults (double spos, double cpos, double hpos) {
defaults[0] = spos;
defaults[1] = cpos;
defaults[2] = hpos;
}
void SHCSelector::setPositions (double spos, double cpos, double hpos) {
positions[0] = spos;
positions[1] = cpos;
positions[2] = hpos;
queue_draw ();
}
void SHCSelector::getPositions (double& spos, double& cpos, double& hpos) {
spos = positions[0];
cpos = positions[1];
hpos = positions[2];
}
void SHCSelector::on_realize() {
Gtk::DrawingArea::on_realize();
add_events(Gdk::EXPOSURE_MASK | Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
}
bool SHCSelector::on_expose_event(GdkEventExpose* event) {
Gdk::Color c;
Cairo::RefPtr<Cairo::Context> cr = get_window()->create_cairo_context();
int w = get_width () - leftMargin - rightMargin;
int h = get_height ();
wslider = std::max(int(h / 5), 10);
double hwslider = double(wslider)/2.;
Gtk::StateType state = !is_sensitive() ? Gtk::STATE_INSENSITIVE : Gtk::STATE_NORMAL;
Glib::RefPtr<Gtk::Style> style = get_style();
// clear bg
// set the box's colors
cr->set_line_width (1.0);
cr->set_line_cap(Cairo::LINE_CAP_BUTT);
if (is_sensitive() && canGetColors()) {
// gradient background
Glib::RefPtr<Gdk::Window> win = get_window();
// this will eventually create/update the off-screen pixmap
setDrawRectangle(win, leftMargin+1, 1, w-2, int(float(h)*5.5f/7.f+0.5f));
// that we're displaying here
ColoredBar::expose(win);
}
else {
// solid background
c = style->get_bg (state);
cr->set_source_rgb (c.get_red_p()*0.85, c.get_green_p()*0.85, c.get_blue_p()*0.85);
// draw the box's background
cr->rectangle (leftMargin+1, 1, w-2, int(float(h)*5.5f/7.f+0.5f));
cr->fill();
}
// draw the box's borders
cr->set_line_width (1.);
cr->rectangle (leftMargin+0.5, 0.5, w-1, int(float(h)*5.5f/7.f+0.5f)+1);
c = style->get_bg (state);
cr->set_source_rgb (c.get_red_p()*0.7, c.get_green_p()*0.7, c.get_blue_p()*0.7);
cr->stroke ();
// draw sliders
//cr->set_line_width (1.0);
for (int i=0; i<3; i++) {
cr->move_to (leftMargin+0.5+(w-1)*positions[i]+hwslider, double(h)-0.5);
cr->rel_line_to (0., double(-h/3));
cr->rel_line_to (-hwslider, double(-h/3));
cr->rel_line_to (-hwslider, double(h/3));
cr->rel_line_to (0., double(h/3));
cr->close_path();
// normal
c = style->get_bg (is_sensitive() ? Gtk::STATE_ACTIVE : Gtk::STATE_INSENSITIVE);
cr->set_source_rgb (c.get_red_p(), c.get_green_p(), c.get_blue_p());
cr->fill_preserve ();
c = style->get_bg (state);
cr->set_source_rgb (c.get_red_p()*0.7, c.get_green_p()*0.7, c.get_blue_p()*0.7);
cr->stroke ();
}
// draw text for the slider that is being moved
Glib::RefPtr<Pango::Context> context = get_pango_context () ;
cr->set_line_width (0.5);
if (movingPosition >= 0) {
int i = movingPosition;
int offset;
int layout_width, layout_height;
Glib::RefPtr<Pango::Layout> layout = create_pango_layout(Glib::ustring::format(std::setprecision(2), positions[i]));
layout->get_pixel_size(layout_width, layout_height);
offset = positions[i] > 0.5 ? -layout_width-1-hwslider : 1+hwslider;
c = style->get_bg (state);
cr->set_source_rgb (c.get_red_p(), c.get_green_p(), c.get_blue_p());
cr->set_line_width(3.);
cr->set_line_join(Cairo::LINE_JOIN_ROUND);
cr->set_line_cap(Cairo::LINE_CAP_ROUND);
cr->move_to (leftMargin+w*positions[i]+offset, 0.);
layout->add_to_cairo_context (cr);
cr->stroke_preserve();
c = style->get_fg (Gtk::STATE_PRELIGHT);
cr->set_source_rgb (c.get_red_p(), c.get_green_p(), c.get_blue_p());
cr->fill ();
}
return true;
}
bool SHCSelector::on_button_press_event (GdkEventButton* event) {
// check if a slider is under the cursor
double w = double(get_width ()-leftMargin-rightMargin);
movingPosition = -1;
for (int i=0; i<3; i++)
if (event->x > double(leftMargin)+w*positions[i]-wslider/2. && event->x < double(leftMargin)+w*positions[i]+wslider/2) {
movingPosition = i;
tmpX = event->x;
tmpPos = positions[i];
break;
}
queue_draw ();
return true;
}
bool SHCSelector::on_button_release_event (GdkEventButton* event) {
if (event->button == 1) {
if (movingPosition >= 0) {
movingPosition = -1;
queue_draw ();
}
}
else if (event->button == 3) {
if (movingPosition >= 0)
movingPosition = -1;
// right mouse button reset the selector to the stored default values
if (reset()) {
// rest has modified the values
if (cl)
cl->shcChanged ();
}
}
return true;
}
bool SHCSelector::on_motion_notify_event (GdkEventMotion* event) {
if (movingPosition >= 0) {
int w = get_width ();
positions[movingPosition] = tmpPos + (event->x - tmpX) / w;
if (positions[movingPosition] < 0)
positions[movingPosition] = 0.0;
else if (movingPosition > 0 && positions[movingPosition] < positions[movingPosition-1]+wslider/w)
positions[movingPosition] = positions[movingPosition-1]+wslider/w;
if (positions[movingPosition] > 1.0)
positions[movingPosition] = 1.0;
else if (movingPosition <3 && positions[movingPosition] > positions[movingPosition+1]-wslider/w)
positions[movingPosition] = positions[movingPosition+1]-wslider/w;
if (cl)
cl->shcChanged ();
queue_draw ();
}
return true;
}
void SHCSelector::styleChanged (const Glib::RefPtr<Gtk::Style>& style) {
queue_draw ();
}
bool SHCSelector::reset () { // : movingPosition(-1), cl(NULL) {
if ( positions[0] != defaults[0] ||
positions[1] != defaults[1] ||
positions[2] != defaults[2]
) {
positions[0] = defaults[0];
positions[1] = defaults[1];
positions[2] = defaults[2];
queue_draw ();
return true;
}
return false;
}
void SHCSelector::refresh() {
setDirty(true);
Glib::RefPtr<Gdk::Window> win = get_window();
if (win)
win->invalidate(true);
}