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cairo demo

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git-svn-id: svn://kolibrios.org@5553 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2015-04-20 20:17:43 +00:00
parent ae85cb2af8
commit 8cc519feda
3 changed files with 2864 additions and 0 deletions
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26
contrib/sdk/samples/cairo/Makefile Normal file
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CC = kos32-gcc
LD = kos32-ld
SDK_DIR:= $(abspath ../..)
LDFLAGS = -static -S -nostdlib -T $(SDK_DIR)/sources/newlib/app.lds --image-base 0
CFLAGS = -c -fno-ident -O2 -fomit-frame-pointer -fno-ident -U__WIN32__ -U_Win32 -U_WIN32 -U__MINGW32__ -UWIN32
INCLUDES= -I $(SDK_DIR)/sources/newlib/libc/include -I $(SDK_DIR)/sources/cairo/src -I $(SDK_DIR)/sources/freetype/include
LIBPATH:= -L $(SDK_DIR)/lib -L /home/autobuild/tools/win32/mingw32/lib
SOURCES = cairo.c \
$(NULL)
OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
default: cairo
cairo: $(OBJECTS) Makefile
$(LD) $(LDFLAGS) $(LIBPATH) -o cairo $(OBJECTS) -lcairo2.dll -lgcc -lc.dll -lapp
objcopy cairo -O binary
%.o : %.c Makefile $(SOURCES)
$(CC) $(CFLAGS) $(INCLUDES) -o $@ $<

522
contrib/sdk/samples/cairo/cairo.c Normal file
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#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <cairo.h>
#include <cairo-ft.h>
#include <ft2build.h>
#include <kos32sys.h>
#include FT_FREETYPE_H
#include "tiger.inc"
typedef unsigned int color_t;
int width = 500;
int height = 400;
cairo_surface_t *main_surface;
unsigned char *winbitmap;
int winstride;
int screen = -1;
cairo_font_face_t *c_face;
static void draw_next_msg(cairo_t *cr, int width, int height)
{
cairo_identity_matrix (cr);
cairo_select_font_face (cr, "cairo:monospace", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size (cr, 28);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_move_to (cr, 160.0, 360.0);
cairo_show_text (cr, "Press any key");
};
static void screen_0(cairo_t *cr, int width, int height)
{
cairo_identity_matrix (cr);
cairo_set_source_rgb(cr,1,1,1);
cairo_paint(cr);
cairo_translate(cr, 50, 30);
cairo_set_source_rgb(cr,0, 0,0);
cairo_set_line_width(cr, 10);
cairo_rectangle(cr, 20, 20, 120, 80);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0, 0.5, 0.5);
cairo_fill(cr);
cairo_set_source_rgb(cr,0, 0,0);
cairo_rectangle(cr, 180, 20, 80, 80);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0, 1, 1);
cairo_fill(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, 330, 60, 40, 0, 2*M_PI);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0.5, 0.0, 0.5);
cairo_fill(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, 90, 160, 40, M_PI/4, M_PI);
cairo_close_path(cr);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0.5, 0.5, 0.0);
cairo_fill(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_translate(cr, 220, 180);
cairo_scale(cr, 1, 0.7);
cairo_arc(cr, 0, 0, 50, 0, 2*M_PI);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 1, 0, 1);
cairo_fill(cr);
draw_next_msg(cr, width, height);
};
static int points[11][2] = {
{ 0, 85 },
{ 75, 75 },
{ 100, 10 },
{ 125, 75 },
{ 200, 85 },
{ 150, 125 },
{ 160, 190 },
{ 100, 150 },
{ 40, 190 },
{ 50, 125 },
{ 0, 85 }
};
static void screen_1(cairo_t *cr, int width, int height)
{
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_paint(cr);
cairo_translate(cr, 20, 40);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width(cr, 10);
cairo_move_to(cr, 0, 85);
int i;
for ( i = 0; i < 10; i++ ) {
cairo_line_to(cr, points[i][0], points[i][1]);
}
cairo_close_path(cr);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0, 1, 0);
cairo_fill(cr);
cairo_move_to(cr, 240, 40);
cairo_line_to(cr, 240, 160);
cairo_line_to(cr, 350, 160);
cairo_close_path(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 1, 0, 0);
cairo_fill(cr);
cairo_move_to(cr, 380, 40);
cairo_line_to(cr, 380, 160);
cairo_line_to(cr, 450, 160);
cairo_curve_to(cr, 440, 155, 380, 145, 380, 40);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 1, 0, 1);
cairo_fill(cr);
draw_next_msg(cr, width, height);
};
static void screen_2(cairo_t *cr, int width, int height)
{
cairo_pattern_t *pat1;
cairo_pattern_t *pat2;
cairo_pattern_t *pat3;
cairo_translate(cr, 75, 0);
cairo_set_source_rgb(cr, 1, 1,1);
cairo_paint(cr);
cairo_move_to(cr, 0, 85);
pat1 = cairo_pattern_create_linear(0.0, 0.0, 350.0, 350.0);
double j;
int count = 1;
for ( j = 0.1; j < 1; j += 0.1 )
{
if (( count % 2 ))
{
cairo_pattern_add_color_stop_rgb(pat1, j, 0, 0, 0);
}
else {
cairo_pattern_add_color_stop_rgb(pat1, j, 1, 0, 0);
}
count++;
}
cairo_rectangle(cr, 20, 20, 300, 100);
cairo_set_source(cr, pat1);
cairo_fill(cr);
pat2 = cairo_pattern_create_linear(0.0, 0.0, 350.0, 0.0);
double i;
count = 1;
for ( i = 0.05; i < 0.95; i += 0.025 )
{
if (( count % 2 ))
{
cairo_pattern_add_color_stop_rgb(pat2, i, 0, 0, 0);
}
else {
cairo_pattern_add_color_stop_rgb(pat2, i, 0, 0, 1);
}
count++;
}
cairo_rectangle(cr, 20, 140, 300, 100);
cairo_set_source(cr, pat2);
cairo_fill(cr);
pat3 = cairo_pattern_create_linear(20.0, 260.0, 20.0, 360.0);
cairo_pattern_add_color_stop_rgb(pat3, 0.1, 0, 0, 0);
cairo_pattern_add_color_stop_rgb(pat3, 0.5, 1, 1, 0);
cairo_pattern_add_color_stop_rgb(pat3, 0.9, 0, 0, 0);
cairo_rectangle(cr, 20, 260, 300, 100);
cairo_set_source(cr, pat3);
cairo_fill(cr);
cairo_pattern_destroy(pat1);
cairo_pattern_destroy(pat2);
cairo_pattern_destroy(pat3);
draw_next_msg(cr, width, height);
};
static void screen_3(cairo_t *cr, int width, int height)
{
cairo_translate(cr, 110,20);
cairo_set_source_rgb(cr, 1, 1,1);
cairo_paint(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width(cr, 10);
cairo_move_to (cr, 128.0, 25.6);
cairo_line_to (cr, 230.4, 230.4);
cairo_rel_line_to (cr, -102.4, 0.0);
cairo_curve_to (cr, 51.2, 230.4, 51.2, 128.0, 128.0, 128.0);
cairo_close_path (cr);
cairo_move_to (cr, 64.0, 25.6);
cairo_rel_line_to (cr, 51.2, 51.2);
cairo_rel_line_to (cr, -51.2, 51.2);
cairo_rel_line_to (cr, -51.2, -51.2);
cairo_close_path (cr);
cairo_set_line_width (cr, 10.0);
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_stroke (cr);
draw_next_msg(cr, width, height);
}
static void screen_hello(cairo_t *cr, int width, int height)
{
cairo_set_source_rgb(cr, 0.7, 0.7, 0.7);
cairo_paint(cr);
cairo_set_line_width(cr, 1);
cairo_select_font_face (cr, "cairo:sans", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size (cr, 200);
cairo_set_source_rgb(cr, 0, 1.0,0);
cairo_move_to (cr, 20.0, 145.0);
cairo_show_text (cr, "Hello");
#if 0
cairo_move_to (cr, 70.0, 170.0);
cairo_text_path (cr, "world");
cairo_set_source_rgb (cr, 0.5, 0.5, 1);
cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_line_width (cr, 2.56);
cairo_stroke (cr);
#else
cairo_set_font_size (cr, 140);
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_move_to (cr, 80.0, 175.0);
cairo_show_text (cr, "world");
#endif
cairo_identity_matrix (cr);
cairo_select_font_face (cr, "cairo:sans", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size (cr, 16);
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_move_to (cr, 160.0, 210.0);
cairo_show_text (cr, "www.cairographics.org");
draw_next_msg(cr, width, height);
};
static void draw_tiger(cairo_t *cr, int width, int height)
{
unsigned int i;
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba (cr, 0.1, 0.2, 0.3, 1.0);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_translate (cr, width/3, height/3);
cairo_scale (cr, .85, .85);
for (i = 0; i < sizeof (tiger_commands)/sizeof(tiger_commands[0]);i++) {
const struct command *cmd = &tiger_commands[i];
switch (cmd->type) {
case 'm':
cairo_move_to (cr, cmd->x0, cmd->y0);
break;
case 'l':
cairo_line_to (cr, cmd->x0, cmd->y0);
break;
case 'c':
cairo_curve_to (cr,
cmd->x0, cmd->y0,
cmd->x1, cmd->y1,
cmd->x2, cmd->y2);
break;
case 'f':
cairo_set_source_rgba (cr,
cmd->x0, cmd->y0, cmd->x1, cmd->y1);
cairo_fill (cr);
break;
}
}
}
static void (*draw_screen[5])(cairo_t *cr, int width, int height)=
{
screen_0,
screen_1,
screen_2,
screen_3,
draw_tiger
};
static int check_events(cairo_t *cr)
{
uint32_t ev;
oskey_t key;
int retval = 1;
ev = get_os_event();
switch(ev)
{
case 1:
BeginDraw();
DrawWindow(0,0,0,0,NULL,0,0x74);
Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(),
0, 0, width, height,width,height,winstride);
EndDraw();
break;
case 2:
key = get_key();
if(1 == key.val)
break;
if(0x8000 & key.val)
break;
if(0x0100 == key.val)
{
retval = 0;
break;
};
if(++screen > 4){screen = 0;};
draw_screen[screen](cr,width,height);
Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(),
0, 0, width, height,width,height,winstride);
break;
case 3:
if(get_os_button()==1)
retval = 0;
break;
};
return retval;
}
#if 0
static void rounded_flat(cairo_t *cr, int x, int y, int w, int h)
{
double radius = 4;
double degrees = M_PI / 180.0;
cairo_new_sub_path (cr);
cairo_arc (cr, x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
cairo_arc (cr, x +radius, y + h - radius, radius, 90 * degrees, 180 * degrees);
cairo_arc (cr, x +radius, y + radius, radius, 180 * degrees, 270 * degrees);
cairo_close_path (cr);
cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
cairo_fill_preserve (cr);
cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 0.5);
cairo_set_line_width (cr, 2.0);
cairo_stroke (cr);
};
static void rounded(cairo_t *cr, int x, int y, int w, int h)
{
cairo_pattern_t *pat;
double radius = 5;
double degrees = M_PI / 180.0;
pat = cairo_pattern_create_linear (x, y, x, y+h);
cairo_pattern_add_color_stop_rgb (pat, 0, 0.7, 0.7, 0.7);
cairo_pattern_add_color_stop_rgb (pat, 0.125, 0.85, 0.85, 0.85);
cairo_pattern_add_color_stop_rgb (pat, 0.25, 1.0, 1.0, 1.0);
cairo_pattern_add_color_stop_rgb (pat, 0.75, 1.0, 1.0, 1.0);
cairo_pattern_add_color_stop_rgb (pat, 1, 0.6, 0.6, 0.6);
cairo_new_sub_path (cr);
cairo_arc (cr, x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
cairo_arc (cr, x +radius, y + h - radius, radius, 90 * degrees, 180 * degrees);
cairo_arc (cr, x +radius, y + radius, radius, 180 * degrees, 270 * degrees);
cairo_close_path (cr);
cairo_set_source (cr, pat);
cairo_fill_preserve (cr);
cairo_set_source_rgba (cr, 0.3, 0.3, 0.3, 0.5);
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
cairo_pattern_destroy (pat);
};
static void rounded_hl(cairo_t *cr, int x, int y, int w, int h)
{
cairo_pattern_t *pat;
double radius = 5;
double degrees = M_PI / 180.0;
pat = cairo_pattern_create_linear (x, y, x, y+h);
cairo_pattern_add_color_stop_rgb (pat, 0, 0.7, 0.7, 0.7);
cairo_pattern_add_color_stop_rgb (pat, 0.125, 0.85, 0.85, 0.85);
cairo_pattern_add_color_stop_rgb (pat, 0.25, 1.0, 1.0, 1.0);
cairo_pattern_add_color_stop_rgb (pat, 0.75, 1.0, 1.0, 1.0);
cairo_pattern_add_color_stop_rgb (pat, 1, 0.6, 0.6, 0.6);
cairo_new_sub_path (cr);
cairo_arc (cr, x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
cairo_arc (cr, x +radius, y + h - radius, radius, 90 * degrees, 180 * degrees);
cairo_arc (cr, x +radius, y + radius, radius, 180 * degrees, 270 * degrees);
cairo_close_path (cr);
cairo_set_source (cr, pat);
cairo_fill_preserve (cr);
cairo_set_source_rgba (cr, 0, 0.6, 1, 1);
cairo_set_line_width (cr, 2.0);
cairo_stroke (cr);
cairo_pattern_destroy (pat);
cairo_select_font_face (cr, "cairo:monospace", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_text_extents_t extents;
cairo_set_font_size (cr, 20);
cairo_text_extents (cr, "Cancel", &extents);
x+= w/2 -(extents.width/2 + extents.x_bearing);
y+= h/2 - (extents.height/2 + extents.y_bearing);
cairo_move_to (cr, x, y );
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_show_text (cr, "Cancel");
cairo_set_source_rgb (cr, 0, 0, 0);
};
#endif
static cairo_surface_t* main_surface_create(int width, int height)
{
cairo_surface_t *surface;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
return surface;
}
int main ()
{
int tmp;
cairo_t *cr;
__asm__ __volatile__(
"int $0x40"
:"=a"(tmp)
:"a"(66),"b"(1),"c"(1));
main_surface = main_surface_create(width, height);
cr = cairo_create(main_surface);
winstride = cairo_image_surface_get_stride(main_surface);
winbitmap = cairo_image_surface_get_data(main_surface);
screen_hello(cr,width,height);
BeginDraw();
DrawWindow(10, 40, width+TYPE_3_BORDER_WIDTH*2,
height+TYPE_3_BORDER_WIDTH+get_skin_height(), "Cairo demo", 0x000000, 0x74);
Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(), 0, 0, width, height,
width,height,winstride);
EndDraw();
while( check_events(cr));
cairo_destroy(cr);
cairo_surface_destroy(main_surface);
return 0;
}

2316
contrib/sdk/samples/cairo/tiger.inc Normal file
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