graphics_qt5.cpp File Reference

#include <glib.h>
#include "config.h"
#include "item.h"
#include "callback.h"
#include "color.h"
#include "debug.h"
#include "event.h"
#include "point.h"
#include "graphics.h"
#include "plugin.h"
#include "window.h"
#include "event_qt5.h"
#include "graphics_qt5.h"
#include <QDBusConnection>
#include <QDBusInterface>
#include <QFile>
#include <QFont>
#include <QGuiApplication>
#include <QPainter>
#include <QPainterPath>
#include <QPixmap>
#include <QScreen>
#include <QSvgRenderer>
#include "QNavitWidget.h"
#include <QApplication>

Data Structures
struct	graphics_font_priv
struct	graphics_image_priv

Functions
static void	graphics_destroy (struct graphics_priv *gr)
static void	font_destroy (struct graphics_font_priv *font)
static struct graphics_font_priv *	font_new (struct graphics_priv *gr, struct graphics_font_methods *meth, char *font, int size, int flags)
	Allocate a font context.
static void	gc_destroy (struct graphics_gc_priv *gc)
static void	gc_set_linewidth (struct graphics_gc_priv *gc, int w)
static void	gc_set_dashes (struct graphics_gc_priv *gc, int w, int offset, unsigned char *dash_list, int n)
static void	gc_set_foreground (struct graphics_gc_priv *gc, struct color *c)
static void	gc_set_background (struct graphics_gc_priv *gc, struct color *c)
void	gc_set_texture (struct graphics_gc_priv *gc, struct graphics_image_priv *img)
static struct graphics_gc_priv *	gc_new (struct graphics_priv *gr, struct graphics_gc_methods *meth)
static void	image_destroy (struct graphics_image_priv *img)
static struct graphics_image_priv *	image_new (struct graphics_priv *gr, struct graphics_image_methods *meth, char *path, int *w, int *h, struct point *hot, int rotation)
static void	draw_lines (struct graphics_priv *gr, struct graphics_gc_priv *gc, struct point *p, int count)
static void	draw_polygon (struct graphics_priv *gr, struct graphics_gc_priv *gc, struct point *p, int count)
static void	draw_polygon_with_holes (struct graphics_priv *gr, struct graphics_gc_priv *gc, struct point *p, int count, int hole_count, int *ccount, struct point **holes)
static void	draw_rectangle (struct graphics_priv *gr, struct graphics_gc_priv *gc, struct point *p, int w, int h)
static void	draw_circle (struct graphics_priv *gr, struct graphics_gc_priv *gc, struct point *p, int r)
static void	draw_text (struct graphics_priv *gr, struct graphics_gc_priv *fg, struct graphics_gc_priv *bg, struct graphics_font_priv *font, char *text, struct point *p, int dx, int dy)
	Render given text.
static void	draw_image (struct graphics_priv *gr, struct graphics_gc_priv *fg, struct point *p, struct graphics_image_priv *img)
static void	draw_drag (struct graphics_priv *gr, struct point *p)
	Drag layer.
static void	background_gc (struct graphics_priv *gr, struct graphics_gc_priv *gc)
static void	draw_mode (struct graphics_priv *gr, enum draw_mode_num mode)
static struct graphics_priv *	overlay_new (struct graphics_priv *gr, struct graphics_methods *meth, struct point *p, int w, int h, int wraparound)
void	resize_callback (struct graphics_priv *gr, int w, int h)
static int	graphics_qt5_fullscreen (struct window *w, int on)
static void	keep_display_on (struct graphics_priv *priv)
static void	graphics_qt5_disable_suspend (struct window *w)
static void *	get_data (struct graphics_priv *this_priv, char const *type)
static void	image_free (struct graphics_priv *gr, struct graphics_image_priv *priv)
static void	get_text_bbox (struct graphics_priv *gr, struct graphics_font_priv *font, char *text, int dx, int dy, struct point *ret, int estimate)
	Calculate pixel space required for font display.
static void	overlay_disable (struct graphics_priv *gr, int disable)
static void	overlay_resize (struct graphics_priv *gr, struct point *p, int w, int h, int wraparound)
static navit_float	get_dpi (struct graphics_priv *gr)
	Return number of dots per inch.
static struct graphics_priv *	graphics_qt5_new (struct navit *nav, struct graphics_methods *meth, struct attr **attrs, struct callback_list *cbl)
void	plugin_init (void)

Variables
QGuiApplication *	navit_app = NULL
static struct graphics_font_methods	font_methods
	font interface structure This structure is preset with all function pointers provided by this implemention to be returned as interface.
static const char *	fontfamilies []
static struct graphics_gc_methods	gc_methods
struct graphics_image_methods	image_methods
static struct graphics_methods	graphics_methods

Function Documentation

background_gc()

static void background_gc ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc  )

static

References graphics_priv::background_graphics_gc_priv.

draw_circle()

static void draw_circle ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc, struct point *  p, int  r  )

static

References p, graphics_priv::painter, and graphics_gc_priv::pen.

draw_drag()

static void draw_drag ( struct graphics_priv *  gr, struct point *  p  )

static

Drag layer.

Parameters

gr	private handle
p	vector the bitmap is moved from base, or NULL to indicate 0:0 vector

Move layer to new position. If drag_bitmap is enabled this may also be called for root layer. There the content of the root layer is to be moved by given vector. On root layer, NULL indicates the end of a drag.

References dbg, lvl_debug, p, graphics_priv::pixmap, graphics_priv::root, graphics_priv::scroll_x, graphics_priv::scroll_y, graphics_priv::widget, graphics_priv::x, point::x, graphics_priv::y, and point::y.

draw_image()

static void draw_image ( struct graphics_priv *  gr, struct graphics_gc_priv *  fg, struct point *  p, struct graphics_image_priv *  img  )

static

References dbg, lvl_debug, p, graphics_priv::painter, and graphics_image_priv::pixmap.

draw_lines()

static void draw_lines ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc, struct point *  p, int  count  )

static

References p, graphics_priv::painter, and graphics_gc_priv::pen.

draw_mode()

static void draw_mode ( struct graphics_priv *  gr, enum draw_mode_num  mode  )

static

References dbg, draw_mode_begin, draw_mode_end, lvl_debug, graphics_priv::painter, graphics_priv::parent, graphics_priv::pixmap, graphics_priv::use_count, graphics_priv::widget, graphics_priv::x, and graphics_priv::y.

draw_polygon()

static void draw_polygon ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc, struct point *  p, int  count  )

static

References graphics_gc_priv::brush, p, graphics_priv::painter, and graphics_gc_priv::pen.

draw_polygon_with_holes()

static void draw_polygon_with_holes ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc, struct point *  p, int  count, int  hole_count, int *  ccount, struct point **  holes  )

static

References graphics_gc_priv::brush, p, graphics_priv::painter, graphics_image_priv::path, graphics_gc_priv::pen, point::x, and point::y.

draw_rectangle()

static void draw_rectangle ( struct graphics_priv *  gr, struct graphics_gc_priv *  gc, struct point *  p, int  w, int  h  )

static

References graphics_gc_priv::brush, graphics_image_priv::h, p, graphics_priv::painter, and graphics_image_priv::w.

draw_text()

static void draw_text ( struct graphics_priv *  gr, struct graphics_gc_priv *  fg, struct graphics_gc_priv *  bg, struct graphics_font_priv *  font, char *  text, struct point *  p, int  dx, int  dy  )

static

Render given text.

Parameters

gr	own private context
fg	foreground drawing context (for color)
bg	background drawing context (for color)
font	font context to use (allocated by font_new)
text	String to calculate bbox for
p	offset on gr context to place this text.
dx	transformation matrix (16.16 fixpoint)
dy	transformation matrix (16.16 fixpoint)

Renders given text on gr surface. Draws nice contrast outline around text.

References color::a, color::b, data, dbg, graphics_font_priv::font, graphics_priv::freetype_methods, color::g, font_freetype_methods::get_glyph, font_freetype_methods::get_shadow, font_freetype_text::glyph, font_freetype_text::glyph_count, lvl_debug, p, graphics_priv::painter, graphics_gc_priv::pen, color::r, font_freetype_methods::text_destroy, and font_freetype_methods::text_new.

font_destroy()

static void font_destroy ( struct graphics_font_priv *  font )

static

References graphics_font_priv::font.

font_new()

static struct graphics_font_priv * font_new ( struct graphics_priv *  gr, struct graphics_font_methods *  meth, char *  font, int  size, int  flags  )

static

Allocate a font context.

Parameters

gr	own private context
meth	fill this structure with correct functions to be called with handle as interface to font
font	font family e.g. "Arial"
size	Font size in 16.6 fractional points @ 300dpi. This is bullsh***. The encoding is freetypes 16.6 fixed point format usually giving points. One point is usually 72th part of an inch. But navit does not honor dpi correct. It's traditionally used freetype backend is fixed to 300 dpi. So this value is (300/72) pixels
flags	Font flags (currently 1 if bold and 0 if not)

Returns

font handle

Allocates a font handle and returnes filled interface stucture

References font_priv::data, dbg, graphics_font_priv::font, font_methods, fontfamilies, lvl_debug, meth, and size.

gc_destroy()

static void gc_destroy ( struct graphics_gc_priv *  gc )

static

References graphics_gc_priv::brush, and graphics_gc_priv::pen.

gc_new()

static struct graphics_gc_priv * gc_new ( struct graphics_priv *  gr, struct graphics_gc_methods *  meth  )

static

References graphics_gc_priv::brush, gc_methods, graphics_gc_priv::gr, graphics_gc_priv::graphics_priv, meth, and graphics_gc_priv::pen.

gc_set_background()

static void gc_set_background ( struct graphics_gc_priv *  gc, struct color *  c  )

static

References c.

gc_set_dashes()

static void gc_set_dashes ( struct graphics_gc_priv *  gc, int  w, int  offset, unsigned char *  dash_list, int  n  )

static

References dbg, lvl_error, offset, and graphics_gc_priv::pen.

gc_set_foreground()

static void gc_set_foreground ( struct graphics_gc_priv *  gc, struct color *  c  )

static

References graphics_gc_priv::brush, c, and graphics_gc_priv::pen.

gc_set_linewidth()

static void gc_set_linewidth ( struct graphics_gc_priv *  gc, int  w  )

static

References graphics_gc_priv::pen.

gc_set_texture()

void gc_set_texture	(	struct graphics_gc_priv *	gc,
		struct graphics_image_priv *	img
	)

References graphics_gc_priv::brush, and graphics_image_priv::pixmap.

get_data()

static void * get_data ( struct graphics_priv *  this_priv, char const *  type  )

static

References dbg, window::disable_suspend, window::fullscreen, graphics_qt5_disable_suspend(), graphics_qt5_fullscreen(), lvl_debug, graphics_priv::pixmap, window::priv, resize_callback(), and type.

get_dpi()

static navit_float get_dpi ( struct graphics_priv *  gr )

static

Return number of dots per inch.

Parameters

gr	self handle

Returns

dpi value

References navit_app.

get_text_bbox()

static void get_text_bbox ( struct graphics_priv *  gr, struct graphics_font_priv *  font, char *  text, int  dx, int  dy, struct point *  ret, int  estimate  )

static

Calculate pixel space required for font display.

Parameters

gr	own private context
font	font context to use (allocated by font_new)
text	String to calculate bbox for
dx	transformation matrix (16.16 fixpoint)
dy	transformation matrix (16.16 fixpoint)
ret	point array to fill. (low left, top left, top right, low right)
estimate	???

Calculates the bounding box around the given text.

References graphics_font_priv::font, point::x, and point::y.

graphics_destroy()

static void graphics_destroy ( struct graphics_priv *  gr )

static

References graphics_priv::argc, graphics_priv::argv, font_freetype_methods::destroy, graphics_priv::display_on_cb, graphics_priv::display_on_ev, event_remove_timeout(), graphics_priv::freetype_methods, navit_app, graphics_priv::overlays, graphics_priv::painter, graphics_priv::parent, graphics_priv::pixmap, graphics_priv::root, and graphics_priv::widget.

graphics_qt5_disable_suspend()

static void graphics_qt5_disable_suspend ( struct window *  w )

static

References callback_cast, callback_new_1, graphics_priv::display_on_cb, graphics_priv::display_on_ev, event_add_timeout(), keep_display_on(), and graphics_priv::w.

Referenced by get_data().

graphics_qt5_fullscreen()

static int graphics_qt5_fullscreen ( struct window *  w, int  on  )

static

References graphics_priv::w, graphics_priv::widget, and graphics_priv::window.

Referenced by get_data().

graphics_qt5_new()

static struct graphics_priv * graphics_qt5_new ( struct navit *  nav, struct graphics_methods *  meth, struct attr **  attrs, struct callback_list *  cbl  )

static

References graphics_priv::argc, graphics_priv::argv, attr_search(), attrs, graphics_priv::callbacks, cbl, dbg, graphics_priv::disable, event_request_system(), font_freetype_new(), graphics_priv::font_freetype_new, font_freetype_methods::font_new, graphics_priv::freetype_methods, fullscreen(), font_freetype_methods::get_text_bbox, graphics_methods, lvl_error, meth, navit_app, attr::num, graphics_priv::overlays, graphics_priv::painter, graphics_priv::parent, graphics_priv::pixmap, resize_callback(), graphics_priv::root, graphics_priv::scroll_x, graphics_priv::scroll_y, attr::str, attr::u, graphics_priv::use_count, USE_QML, USE_QWIDGET, graphics_priv::widget, graphics_priv::window, graphics_priv::x, and graphics_priv::y.

Referenced by plugin_init().

image_destroy()

static void image_destroy ( struct graphics_image_priv *  img )

static

References graphics_gc_priv::img, and graphics_image_priv::pixmap.

image_free()

static void image_free ( struct graphics_priv *  gr, struct graphics_image_priv *  priv  )

static

References window::priv.

image_new()

static struct graphics_image_priv * image_new ( struct graphics_priv *  gr, struct graphics_image_methods *  meth, char *  path, int *  w, int *  h, struct point *  hot, int  rotation  )

static

References dbg, graphics_image_priv::h, graphics_image_priv::hot, image_methods, key, lvl_debug, meth, graphics_image_priv::path, graphics_image_priv::pixmap, graphics_image_priv::w, point::x, and point::y.

keep_display_on()

static void keep_display_on ( struct graphics_priv *  priv )

static

Referenced by graphics_qt5_disable_suspend().

overlay_disable()

static void overlay_disable ( struct graphics_priv *  gr, int  disable  )

static

References graphics_priv::disable, graphics_priv::pixmap, graphics_priv::widget, graphics_priv::x, and graphics_priv::y.

overlay_new()

static struct graphics_priv * overlay_new ( struct graphics_priv *  gr, struct graphics_methods *  meth, struct point *  p, int  w, int  h, int  wraparound  )

static

References graphics_priv::argc, graphics_priv::argv, graphics_priv::callbacks, graphics_priv::disable, graphics_priv::font_freetype_new, font_freetype_methods::font_new, graphics_priv::freetype_methods, font_freetype_methods::get_text_bbox, graphics_methods, meth, graphics_priv::overlays, p, graphics_priv::painter, graphics_priv::parent, graphics_priv::pixmap, graphics_priv::root, graphics_priv::scroll_x, graphics_priv::scroll_y, graphics_priv::use_count, graphics_priv::widget, graphics_priv::window, graphics_priv::x, and graphics_priv::y.

overlay_resize()

static void overlay_resize ( struct graphics_priv *  gr, struct point *  p, int  w, int  h, int  wraparound  )

static

References p, graphics_priv::painter, graphics_priv::pixmap, graphics_priv::widget, graphics_priv::x, and graphics_priv::y.

plugin_init()

void plugin_init

(

void

)

References graphics_qt5_new(), and qt5_event_init().

resize_callback()

void resize_callback	(	struct graphics_priv *	gr,
		int	w,
		int	h
	)

References callback_list_call_attr_2, graphics_priv::callbacks, graphics_priv::h, and graphics_priv::w.

Referenced by get_data(), and graphics_qt5_new().

Variable Documentation

font_methods

struct graphics_font_methods font_methods

static

Initial value:

= {
    font_destroy
}

font interface structure This structure is preset with all function pointers provided by this implemention to be returned as interface.

Referenced by font_new().

fontfamilies

const char* fontfamilies[]

static

Initial value:

= {
    "Liberation Sans",
    "Arial",
    "NcrBI4nh",
    "luximbi",
    "FreeSans",
    "DejaVu Sans",
    NULL,
}

List of font families to use, in order of preference

Referenced by font_new().

gc_methods

struct graphics_gc_methods gc_methods

static

Initial value:

= {
    gc_destroy,
    gc_set_linewidth,
    gc_set_dashes,
    gc_set_foreground,
    gc_set_background,
    gc_set_texture
}

Referenced by gc_new().

graphics_methods

struct graphics_methods graphics_methods

static

Initial value:

= {
    graphics_destroy,
    draw_mode,
    draw_lines,
    draw_polygon,
    draw_rectangle,
    draw_circle,
    draw_text,
    draw_image,
    NULL,
    draw_drag,
    font_new,
    gc_new,
    background_gc,
    overlay_new,
    image_new,
    get_data,
    image_free,
    get_text_bbox,
    overlay_disable,
    overlay_resize,
    NULL, 
    NULL, 
    NULL, 
    get_dpi,
    draw_polygon_with_holes
}

Referenced by graphics_qt5_new(), and overlay_new().

image_methods

struct graphics_image_methods image_methods

Initial value:

= {
    image_destroy
}

Referenced by image_new().

navit_app

QGuiApplication* navit_app = NULL

Navit, a modular navigation system. Copyright (C) 2005-2017 Navit Team

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Referenced by event_qt5_main_loop_run(), get_dpi(), graphics_destroy(), and graphics_qt5_new().