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![Luca Bacci](/assets/img/avatar_default.png)
GdkGC has been deprecated in the underlying C / GTK+ 2.22 library. It is less clearly stated but Gdk::GC is also deprecated in C++ / gtkmm. Cairo based rendering should be used instead. https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html https://gitlab.gnome.org/GNOME/gtk/blob/2.22.0/NEWS#L124 https://developer.gnome.org/gtkmm/2.24/classGdk_1_1GC.html First commit in a series to convert Gdk::GC based drawing to Cairo based drawing. This specific commit makes the transition for the graphical partition resizing widget that is used in the "Create New Partition", "Paste" creating new partition and "Resize/Move" dialogs. Cairo is not pixel based but instead uses a continuous coordinate space. To draw in a pixel aligned way follow the guidance in the Cairo FAQ. https://www.cairographics.org/FAQ/#sharp_lines Additional references: https://developer.gnome.org/gdk2/stable/gdk2-Drawing-Primitives.html#gdk-draw-line https://developer.gnome.org/gdk2/stable/gdk2-Drawing-Primitives.html#gdk-draw-rectangle Closes !17 - Gtk2 modernisation
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/* Copyright (C) 2004 Bart
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* Copyright (C) 2010 Curtis Gedak
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GPARTED_FRAME_RESIZER_BASE_H
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#define GPARTED_FRAME_RESIZER_BASE_H
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#include <gtkmm/frame.h>
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#include <gtkmm/drawingarea.h>
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#include <gdkmm/cursor.h>
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class Frame_Resizer_Base : public Gtk::Frame
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{
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public:
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enum ArrowType {
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ARROW_LEFT = 0,
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ARROW_RIGHT = 1
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};
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Frame_Resizer_Base() ;
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~Frame_Resizer_Base() ;
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void set_rgb_partition_color( const Gdk::Color & color ) ;
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void override_default_rgb_unused_color( const Gdk::Color & color ) ;
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void set_x_min_space_before( int x_min_space_before ) ;
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void set_x_start( int x_start ) ;
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void set_x_end( int x_end ) ;
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void set_used( int used );
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void set_fixed_start( bool fixed_start ) ;
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void set_size_limits( int min_size, int max_size ) ;
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int get_used();
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int get_x_start() ;
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int get_x_end() ;
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virtual void draw_partition(const Cairo::RefPtr<Cairo::Context>& cr);
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void redraw();
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//public signals (emitted upon resize/move)
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sigc::signal<void,int,int, ArrowType> signal_resize;
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sigc::signal<void,int,int> signal_move;
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protected:
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int BORDER, GRIPPER ;
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int X_MIN_SPACE_BEFORE ;
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int X_START, USED, UNUSED, X_END, X_START_MOVE, MIN_SIZE, MAX_SIZE;
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bool GRIP_LEFT, GRIP_RIGHT, GRIP_MOVE ;
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//signal handlers
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void drawingarea_on_realize();
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bool drawingarea_on_expose( GdkEventExpose * ev );
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virtual bool drawingarea_on_mouse_motion( GdkEventMotion * ev ) ;
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bool drawingarea_on_button_press_event( GdkEventButton * ev ) ;
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bool drawingarea_on_button_release_event( GdkEventButton * ev ) ;
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bool drawingarea_on_leave_notify( GdkEventCrossing * ev ) ;
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void draw_resize_grip(const Cairo::RefPtr<Cairo::Context>& cr, ArrowType);
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Gtk::DrawingArea drawingarea ;
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Gdk::Color color_used, color_unused, color_arrow, color_background, color_partition, color_arrow_rectangle;
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std::vector<Gdk::Point> arrow_points;
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Gdk::Cursor *cursor_resize, *cursor_move;
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int temp_x, temp_y ;
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bool fixed_start; //a fixed start disables moving the start and thereby the whole move functionality..
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private:
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void init() ;
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};
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#endif /* GPARTED_FRAME_RESIZER_BASE_H */
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