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-rw-r--r--libs/gtkmm2ext/pixscroller.cc274
1 files changed, 0 insertions, 274 deletions
diff --git a/libs/gtkmm2ext/pixscroller.cc b/libs/gtkmm2ext/pixscroller.cc
deleted file mode 100644
index 55bbef8c80..0000000000
--- a/libs/gtkmm2ext/pixscroller.cc
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- Copyright (C) 2005 Paul Davis
-
- This program 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 2 of the License, or
- (at your option) any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
-*/
-#include <iostream>
-#include <algorithm>
-#include <cmath>
-
-#include <gtkmm.h>
-
-#include "gtkmm2ext/pixscroller.h"
-#include "gtkmm2ext/keyboard.h"
-
-using namespace std;
-using namespace Gtk;
-using namespace Gtkmm2ext;
-
-PixScroller::PixScroller (Adjustment& a,
- Glib::RefPtr<Gdk::Pixbuf> s,
- Glib::RefPtr<Gdk::Pixbuf> r)
- : adj (a),
- rail (r),
- slider (s)
-{
- Cairo::Format format;
-
- dragging = false;
- add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK);
-
- adj.signal_value_changed().connect (mem_fun (*this, &PixScroller::adjustment_changed));
- default_value = adj.get_value();
-
- sliderrect.set_width(slider->get_width());
- sliderrect.set_height(slider->get_height());
- railrect.set_width(rail->get_width());
- railrect.set_height(rail->get_height());
-
- railrect.set_y(sliderrect.get_height() / 2);
- sliderrect.set_x(0);
-
- overall_height = railrect.get_height() + sliderrect.get_height();
-
- sliderrect.set_y((int) rint ((overall_height - sliderrect.get_height()) * (adj.get_upper() - adj.get_value())));
- railrect.set_x((sliderrect.get_width() / 2) - 2);
-
- if (rail->get_has_alpha()) {
- format = Cairo::FORMAT_ARGB32;
- } else {
- format = Cairo::FORMAT_RGB24;
- }
- rail_surface = Cairo::ImageSurface::create (format, rail->get_width(), rail->get_height());
- rail_context = Cairo::Context::create (rail_surface);
- Gdk::Cairo::set_source_pixbuf (rail_context, rail, 0.0, 0.0);
- rail_context->paint();
-
- if (slider->get_has_alpha()) {
- format = Cairo::FORMAT_ARGB32;
- } else {
- format = Cairo::FORMAT_RGB24;
- }
- slider_surface = Cairo::ImageSurface::create (format, slider->get_width(), slider->get_height());
- slider_context = Cairo::Context::create (slider_surface);
- Gdk::Cairo::set_source_pixbuf (slider_context, slider, 0.0, 0.0);
- slider_context->paint();
-}
-
-void
-PixScroller::on_size_request (GtkRequisition* requisition)
-{
- requisition->width = sliderrect.get_width();
- requisition->height = overall_height;
-}
-
-bool
-PixScroller::on_expose_event (GdkEventExpose* ev)
-{
- GdkRectangle intersect;
- Glib::RefPtr<Gdk::Window> win (get_window());
- Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
-
- if (gdk_rectangle_intersect (railrect.gobj(), &ev->area, &intersect)) {
-
- context->save();
- context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
- context->clip();
- context->set_source (rail_surface, intersect.x - railrect.get_x(), intersect.y - railrect.get_y());
- context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
- context->clip();
- context->paint();
- context->restore();
- }
-
- if (gdk_rectangle_intersect (sliderrect.gobj(), &ev->area, &intersect)) {
-
- context->save();
- context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
- context->clip();
- context->set_source (rail_surface, intersect.x - sliderrect.get_x(), intersect.y - sliderrect.get_y());
- context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
- context->clip();
- context->paint();
- context->restore();
- }
-
- return true;
-}
-
-bool
-PixScroller::on_button_press_event (GdkEventButton* ev)
-{
- switch (ev->button) {
- case 1:
- if (!(ev->state & Keyboard::TertiaryModifier)) {
- add_modal_grab();
- grab_y = ev->y;
- grab_start = ev->y;
- grab_window = ev->window;
- dragging = true;
- }
- break;
- default:
- break;
- }
-
-
- return false;
-}
-
-bool
-PixScroller::on_button_release_event (GdkEventButton* ev)
-{
- double scale;
-
- if (ev->state & Keyboard::PrimaryModifier) {
- if (ev->state & Keyboard::SecondaryModifier) {
- scale = 0.05;
- } else {
- scale = 0.1;
- }
- } else {
- scale = 1.0;
- }
-
- switch (ev->button) {
- case 1:
- if (dragging) {
- remove_modal_grab();
- dragging = false;
-
- if (ev->y == grab_start) {
- /* no motion - just a click */
- double fract;
-
- if (ev->y < sliderrect.get_height()/2) {
- /* near the top */
- fract = 1.0;
- } else {
- fract = 1.0 - (ev->y - sliderrect.get_height()/2) / railrect.get_height();
- }
-
- fract = min (1.0, fract);
- fract = max (0.0, fract);
-
- adj.set_value (scale * fract * (adj.get_upper() - adj.get_lower()));
- }
- } else {
- if (ev->state & Keyboard::TertiaryModifier) {
- adj.set_value (default_value);
- cerr << "default value = " << default_value << endl;
- }
- }
- break;
- default:
- break;
- }
- return false;
-}
-
-bool
-PixScroller::on_scroll_event (GdkEventScroll* ev)
-{
- double scale;
-
- if (ev->state & Keyboard::PrimaryModifier) {
- if (ev->state & Keyboard::SecondaryModifier) {
- scale = 0.05;
- } else {
- scale = 0.1;
- }
- } else {
- scale = 0.5;
- }
-
- switch (ev->direction) {
-
- case GDK_SCROLL_UP:
- /* wheel up */
- adj.set_value (adj.get_value() + (adj.get_page_increment() * scale));
- break;
- case GDK_SCROLL_DOWN:
- /* wheel down */
- adj.set_value (adj.get_value() - (adj.get_page_increment() * scale));
- break;
- default:
- break;
- }
- return false;
-}
-
-bool
-PixScroller::on_motion_notify_event (GdkEventMotion* ev)
-{
- if (dragging) {
- double fract;
- double delta;
- double scale;
-
- if (ev->window != grab_window) {
- grab_y = ev->y;
- grab_window = ev->window;
- return true;
- }
-
- if (ev->state & Keyboard::PrimaryModifier) {
- if (ev->state & Keyboard::SecondaryModifier) {
- scale = 0.05;
- } else {
- scale = 0.1;
- }
- } else {
- scale = 1.0;
- }
-
- delta = ev->y - grab_y;
- grab_y = ev->y;
-
- fract = (delta / railrect.get_height());
-
- fract = min (1.0, fract);
- fract = max (-1.0, fract);
-
- fract = -fract;
-
- adj.set_value (adj.get_value() + scale * fract * (adj.get_upper() - adj.get_lower()));
- }
-
- return true;
-}
-
-void
-PixScroller::adjustment_changed ()
-{
- int y = (int) rint ((overall_height - sliderrect.get_height()) * (adj.get_upper() - adj.get_value()));
-
- if (y != sliderrect.get_y()) {
- sliderrect.set_y(y);
- queue_draw ();
- }
-}
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