I tried to use cairo to draw a rectangle with top left and bottom right cut Corner, similar to Qt logo.
Here is what I want: Here is what I get:
Here is the code:
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
int main()
{
double height = 500, width = 250;
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 500, 500);
cairo_t *cr = cairo_create (surface);
cairo_move_to(cr,0,0);
cairo_line_to(cr,width,0);
cairo_line_to(cr,width,height - height/4);
cairo_line_to(cr,width - height/4,height);
cairo_line_to(cr,0,height);
cairo_set_line_width (cr, 10.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_stroke (cr);
cairo_destroy (cr);
cairo_surface_write_to_png (surface, "hello.png");
cairo_surface_destroy (surface);
return 0;
}
I do not get the result that I want, someone can give a tip? Whatever the programming language I take.
With your updated shape you are simply missing first stroke. The remaining strokes need to be shifted to the right accordingly.
double cutoff = height/4.0;
cairo_move_to(cr, 0, cutoff);
cairo_line_to(cr, cutoff, 0);
cairo_line_to(cr, width + cutoff, 0);
cairo_line_to(cr, width + cutoff, height - cutoff);
cairo_line_to(cr, width, height);
cairo_line_to(cr, cutoff, height);