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-rw-r--r--draw.c46
1 files changed, 32 insertions, 14 deletions
diff --git a/draw.c b/draw.c
index a39df7a..f68725b 100644
--- a/draw.c
+++ b/draw.c
@@ -3,6 +3,7 @@
#include "geometry.h"
#include <math.h>
#include <gtk/gtk.h>
+#include <glib/gprintf.h>
#include <cairo/cairo.h>
@@ -14,31 +15,48 @@ static void drawGrid(cairo_t *cr, const RECTANGLE *rect) {
double depth = log10(scale)-0.75;
double depth2 = floor(depth);
double step = pow(0.1, depth2);
- double x;
+ double d;
int i;
+ gchar buffer[10];
- cairo_set_source_rgb(cr, 0.2*(depth-depth2), 0.2*(depth-depth2), 0.2*(depth-depth2));
- for(i = 0; i < 3; i++) {
- for(x = rect->x - fmod(rect->x, step); x <= rect->x+rect->width; x+=step) {
- cairo_move_to(cr, x, rect->y);
- cairo_line_to(cr, x, rect->y+rect->height);
+ cairo_set_font_size(cr, 10.0/scale);
+
+ for(i = 0; 0.2*(depth-depth2+i-1) < 0.3; i++) {
+ d = MIN(0.2*(depth-depth2+i), 0.3);
+ cairo_set_source_rgb(cr, d, d, d);
+
+ for(d = rect->x - fmod(rect->x, step) - step; d <= rect->x+rect->width; d+=step) {
+ cairo_move_to(cr, d, rect->y);
+ cairo_line_to(cr, d, rect->y+rect->height);
cairo_stroke(cr);
+
+ if(step > 0.2)
+ g_snprintf(buffer, sizeof(buffer), "%i", (int)rint(d));
+ else
+ g_snprintf(buffer, sizeof(buffer), "%.*f", -(int)floor(log10(step*1.1)), d+step/10);
+ buffer[sizeof(buffer)-1] = '\0';
+ cairo_move_to(cr, d+1/scale, rect->y+11/scale);
+ cairo_show_text(cr, buffer);
}
- for(x = rect->y - fmod(rect->y, step); x <= rect->y+rect->height; x+=step) {
- cairo_move_to(cr, rect->x, x);
- cairo_line_to(cr, rect->x+rect->width, x);
+ for(d = rect->y - fmod(rect->y, step) - step; d <= rect->y+rect->height; d+=step) {
+ cairo_move_to(cr, rect->x, d);
+ cairo_line_to(cr, rect->x+rect->width, d);
cairo_stroke(cr);
+
+ if(step > 0.5)
+ g_snprintf(buffer, sizeof(buffer), "%i", (int)rint(d));
+ else
+ g_snprintf(buffer, sizeof(buffer), "%.*f", -(int)floor(log10(step*1.1)), d+step/10);
+ buffer[sizeof(buffer)-1] = '\0';
+ cairo_move_to(cr, rect->x+3/scale, d+11/scale);
+ cairo_show_text(cr, buffer);
}
step *= 10;
- if(i == 0 && 0.2*(depth-depth2+1) < 0.3)
- cairo_set_source_rgb(cr, 0.2*(depth-depth2+1), 0.2*(depth-depth2+1), 0.2*(depth-depth2+1));
- else
- cairo_set_source_rgb(cr, 0.3, 0.3, 0.3);
}
}
@@ -73,7 +91,7 @@ gboolean drawTopView(GtkWidget *widget, GdkEventExpose *event, gpointer data) {
ROOM room = {sizeof(vertices)/sizeof(vertices[0]), vertices};
LEVEL lvl = {1, &room};
cairo_t *cr;
- RECTANGLE rect = {-5, -5, widget->allocation.width+10, widget->allocation.height+10};
+ RECTANGLE rect = {-1, -1, widget->allocation.width+2, widget->allocation.height+2};
int i;