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Diffstat (limited to 'libs/gtkmm2ext/cairocell.cc')
-rw-r--r--libs/gtkmm2ext/cairocell.cc499
1 files changed, 0 insertions, 499 deletions
diff --git a/libs/gtkmm2ext/cairocell.cc b/libs/gtkmm2ext/cairocell.cc
deleted file mode 100644
index 7ce77355b6..0000000000
--- a/libs/gtkmm2ext/cairocell.cc
+++ /dev/null
@@ -1,499 +0,0 @@
-/*
- Copyright (C) 2011 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.
-
-*/
-
-#include <algorithm>
-#include <cmath>
-#include <iostream>
-
-#include "gtkmm2ext/cairocell.h"
-#include "gtkmm2ext/utils.h"
-
-using std::string;
-using std::vector;
-using std::map;
-using std::max;
-using std::cerr;
-using std::endl;
-using namespace Gtkmm2ext;
-
-static const double cairo_font_fudge = 1.5;
-
-CairoFontDescription::CairoFontDescription (Pango::FontDescription& fd)
-{
- _size = cairo_font_fudge * (fd.get_size() / PANGO_SCALE);
-
- switch (fd.get_style()) {
- case Pango::STYLE_NORMAL:
- _slant = Cairo::FONT_SLANT_NORMAL;
- break;
- case Pango::STYLE_OBLIQUE:
- _slant = Cairo::FONT_SLANT_OBLIQUE;
- break;
- case Pango::STYLE_ITALIC:
- _slant = Cairo::FONT_SLANT_ITALIC;
- break;
- }
-
- switch (fd.get_weight()) {
- case Pango::WEIGHT_ULTRALIGHT:
- _weight = Cairo::FONT_WEIGHT_NORMAL;
- break;
-
- case Pango::WEIGHT_LIGHT:
- _weight = Cairo::FONT_WEIGHT_NORMAL;
- break;
-
- case Pango::WEIGHT_NORMAL:
- _weight = Cairo::FONT_WEIGHT_NORMAL;
- break;
-
- case Pango::WEIGHT_SEMIBOLD:
- _weight = Cairo::FONT_WEIGHT_BOLD;
- break;
-
- case Pango::WEIGHT_BOLD:
- _weight = Cairo::FONT_WEIGHT_BOLD;
- break;
-
- case Pango::WEIGHT_ULTRABOLD:
- _weight = Cairo::FONT_WEIGHT_BOLD;
- break;
-
- case Pango::WEIGHT_HEAVY:
- _weight = Cairo::FONT_WEIGHT_BOLD;
- break;
-
- /* to silence warnings when compiling with newer pango versions. */
- default:
- _weight = Cairo::FONT_WEIGHT_NORMAL;
- break;
- }
-
- face = fd.get_family();
-}
-
-CairoCell::CairoCell (int32_t id)
- : _id (id)
- , _visible (true)
- , _xpad (0)
-{
- bbox.x = 0;
- bbox.y = 0;
- bbox.width = 0;
- bbox.height = 0;
-}
-
-CairoTextCell::CairoTextCell (int32_t id, double wc, boost::shared_ptr<CairoFontDescription> font)
- : CairoCell (id)
- , _width_chars (wc)
- , _font (font)
- , y_offset (0)
- , x_offset (0)
-{
-}
-
-void
-CairoTextCell::set_text (const std::string& txt)
-{
- _text = txt;
-}
-
-void
-CairoTextCell::render (Cairo::RefPtr<Cairo::Context>& context)
-{
- if (!_visible || _width_chars == 0) {
- return;
- }
-
- context->save ();
-
- context->rectangle (bbox.x, bbox.y, bbox.width, bbox.height);
- context->clip ();
-
- _font->apply (context);
- context->move_to (bbox.x, bbox.y + bbox.height + y_offset);
- context->show_text (_text);
-
- context->restore ();
-}
-
-void
-CairoTextCell::set_size (Cairo::RefPtr<Cairo::Context>& context)
-{
- const uint32_t lim = (uint32_t) ceil (_width_chars);
- vector<char> buf(lim+1);
- uint32_t n;
- double max_width = 0.0;
- double max_height = 0.0;
- Cairo::TextExtents ext;
- double bsum = 0;
-
- buf[lim] = '\0';
-
- _font->apply (context);
-
- for (int digit = 0; digit < 10; digit++) {
-
- for (n = 0; n < lim; ++n) {
- buf[n] = '0' + digit;
- }
-
- context->get_text_extents (&buf[0], ext);
-
- max_width = max (ext.width + ext.x_bearing, max_width);
- max_height = max (ext.height, max_height);
- bsum += ext.x_bearing;
- }
-
- /* add the average x-bearing for all digits as right hand side padding */
-
- bbox.width = max_width + (bsum/10.0);
-
- /* some fonts and some digits get their extents computed "too small", so fudge this
- by adding 2
- */
- bbox.height = max_height;
-}
-
-CairoCharCell::CairoCharCell (int32_t id, char c)
- : CairoTextCell (id, 1)
-{
- _text = c;
-}
-
-void
-CairoCharCell::set_size (Cairo::RefPtr<Cairo::Context>& context)
-{
- Cairo::TextExtents ext;
-
- _font->apply (context);
-
- {
- const char* buf = "8";
- context->get_text_extents (buf, ext);
- /* same height as an "8" */
- bbox.height = ext.height;
- }
-
- {
- const char* buf = ":";
- context->get_text_extents (buf, ext);
- bbox.width = ext.width + (2.0 * ext.x_bearing);
- /* center vertically */
- y_offset = (ext.height - bbox.height) / 2.0;
- }
-}
-
-CairoEditableText::CairoEditableText (boost::shared_ptr<CairoFontDescription> font)
- : editing_cell (0)
- , _draw_bg (true)
- , max_cell_width (0)
- , max_cell_height (0)
- , _corner_radius (9)
- , _xpad (0)
- , _ypad (0)
-{
- set_font (font);
-
- add_events (Gdk::POINTER_MOTION_HINT_MASK | Gdk::SCROLL_MASK | Gdk::KEY_PRESS_MASK | Gdk::KEY_RELEASE_MASK |
- Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::SCROLL_MASK);
- set_flags (Gtk::CAN_FOCUS);
-
- set_can_default (true);
-}
-
-CairoEditableText::~CairoEditableText ()
-{
- /* we don't own cells */
-}
-
-bool
-CairoEditableText::on_scroll_event (GdkEventScroll* ev)
-{
- CairoCell* cell = find_cell (ev->x, ev->y);
-
- if (cell) {
- return scroll (ev, cell);
- }
-
- return false;
-}
-
-bool
-CairoEditableText::on_focus_in_event (GdkEventFocus*)
-{
- return false;
-}
-
-bool
-CairoEditableText::on_focus_out_event (GdkEventFocus*)
-{
- if (editing_cell) {
- queue_draw_cell (editing_cell);
- editing_cell = 0;
- }
- return false;
-}
-
-void
-CairoEditableText::add_cell (CairoCell* cell)
-{
- cells.push_back (cell);
-
- CairoTextCell* tc = dynamic_cast<CairoTextCell*>(cell);
-
- if (tc) {
- tc->set_font (_font);
- }
-
- queue_resize ();
-}
-
-void
-CairoEditableText::clear_cells ()
-{
- cells.clear ();
- queue_resize ();
-}
-
-void
-CairoEditableText::set_width_chars (CairoTextCell* cell, uint32_t wc)
-{
- if (cell) {
- cell->set_width_chars (wc);
- queue_resize ();
- }
-}
-
-void
-CairoEditableText::set_text (CairoTextCell* cell, const string& text)
-{
- cell->set_text (text);
- queue_draw_cell (cell);
-}
-
-bool
-CairoEditableText::on_expose_event (GdkEventExpose* ev)
-{
- Glib::RefPtr<Gdk::Window> win = get_window ();
-
- if (!win) {
- std::cerr << "CET: no window to draw on\n";
- return false;
- }
-
- Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
-
- if (cells.empty()) {
- return true;
- }
-
- context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
- context->clip ();
-
- Gtk::Allocation alloc = get_allocation ();
- double width = alloc.get_width();
- double height = alloc.get_height ();
-
- if (_draw_bg) {
- context->set_source_rgba (bg_r, bg_g, bg_b, bg_a);
- if (_corner_radius) {
- rounded_rectangle (context, 0, 0, width, height, _corner_radius);
- } else {
- context->rectangle (0, 0, width, height);
- }
- context->fill ();
- }
-
- for (CellMap::iterator i = cells.begin(); i != cells.end(); ++i) {
-
- CairoCell* cell = (*i);
-
- /* is cell inside the expose area?
- */
-
- if (cell->intersects (ev->area)) {
- if (cell == editing_cell) {
- context->set_source_rgba (edit_r, edit_b, edit_g, edit_a);
- } else {
- context->set_source_rgba (r, g, b, a);
- }
-
- cell->render (context);
- }
- }
-
- return true;
-}
-
-void
-CairoEditableText::queue_draw_cell (CairoCell* cell)
-{
- Glib::RefPtr<Gdk::Window> win = get_window();
-
- if (!win) {
- return;
- }
-
- Gdk::Rectangle r;
-
- r.set_x (cell->x());
- r.set_y (cell->y());
- r.set_width (cell->width());
- r.set_height (cell->height());
-
- Gdk::Region rg (r);
- win->invalidate_region (rg, true);
-}
-
-CairoCell*
-CairoEditableText::find_cell (uint32_t x, uint32_t y)
-{
- for (CellMap::iterator i = cells.begin(); i != cells.end(); ++i) {
- if ((*i)->covers (x, y)) {
- return (*i);
- }
- }
-
- return 0;
-}
-
-bool
-CairoEditableText::on_button_press_event (GdkEventButton* ev)
-{
- CairoCell* cell = find_cell (ev->x, ev->y);
- return button_press (ev, cell);
-}
-
-bool
-CairoEditableText::on_button_release_event (GdkEventButton* ev)
-{
- CairoCell* cell = find_cell (ev->x, ev->y);
- return button_release (ev, cell);
-}
-
-void
-CairoEditableText::start_editing (CairoCell* cell)
-{
- stop_editing ();
-
- if (cell) {
- editing_cell = cell;
- queue_draw_cell (cell);
- grab_focus ();
- }
-}
-
-void
-CairoEditableText::stop_editing ()
-{
- if (editing_cell) {
- queue_draw_cell (editing_cell);
- editing_cell = 0;
- }
-}
-
-void
-CairoEditableText::set_cell_sizes ()
-{
- Glib::RefPtr<Gdk::Window> win = get_window();
-
- if (!win) {
- return;
- }
-
- Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
-
- if (!context) {
- return;
- }
-
- for (CellMap::iterator i = cells.begin(); i != cells.end(); ++i) {
- (*i)->set_size (context);
- }
-}
-
-void
-CairoEditableText::on_size_request (GtkRequisition* req)
-{
- set_cell_sizes ();
-
- max_cell_width = 0;
- max_cell_height = 0;
-
- for (CellMap::iterator i = cells.begin(); i != cells.end(); ++i) {
- max_cell_width += (*i)->width();
- max_cell_height = std::max ((double) (*i)->height(), max_cell_height);
- }
-
- req->width = max_cell_width;
- req->height = max_cell_height;
-}
-
-void
-CairoEditableText::on_size_allocate (Gtk::Allocation& alloc)
-{
- Misc::on_size_allocate (alloc);
-
- /* position each cell so that its centered in the allocated space
- */
-
- double x = (alloc.get_width() - max_cell_width)/2.0;
- double y = (alloc.get_height() - max_cell_height)/2.0;
-
- CellMap::iterator i = cells.begin();
-
- while (i != cells.end()) {
- CairoCell* cell = (*i);
-
- cell->set_position (x, y);
- x += cell->width ();
-
- if (++i != cells.end()) {
- /* only add cell padding intra-cellularly */
- x += cell->xpad();
- } else {
- break;
- }
- }
-}
-
-void
-CairoEditableText::set_font (Pango::FontDescription& fd)
-{
- boost::shared_ptr<CairoFontDescription> cd (new CairoFontDescription (fd));
- set_font (cd);
-}
-
-void
-CairoEditableText::set_font (boost::shared_ptr<CairoFontDescription> fd)
-{
- for (CellMap::iterator i = cells.begin(); i != cells.end(); ++i) {
- CairoTextCell* tc = dynamic_cast<CairoTextCell*>(*i);
- if (tc && (!tc->font() || tc->font() == _font)) {
- tc->set_font (fd);
- }
- }
-
- _font = fd;
-
- queue_resize ();
- queue_draw ();
-}
-
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