neocturne/neofx-zoomedit
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zoomedit: Added grid.

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neoraider 2007-06-24 00:35:04 +00:00
parent 6c9c0b8a29
commit 464a75f77b
1 changed files with 36 additions and 1 deletions
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37
draw.c
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@ -1,6 +1,7 @@
#include "draw.h"
#include "level.h"
#include "geometry.h"
#include <math.h>
#include <gtk/gtk.h>
#include <cairo/cairo.h>
@ -9,7 +10,39 @@ static double scale = 100.0;
static double xTranslate = 0.0, yTranslate = 0.0;
static void room2path(cairo_t *cr, ROOM *room, RECTANGLE *rect) {
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;
int i;
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_stroke(cr);
}
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);
cairo_stroke(cr);
}
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);
}
}
static void room2path(cairo_t *cr, const ROOM *room, const RECTANGLE *rect) {
int i;
ROOM room2 = {0, NULL};
@ -58,6 +91,8 @@ gboolean drawTopView(GtkWidget *widget, GdkEventExpose *event, gpointer data) {
cairo_set_line_width(cr, 1.0/scale);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
drawGrid(cr, &rect);
for(i = 0; i < lvl.nRooms; i++)
room2path(cr, &lvl.rooms[i], &rect);