259 lines
6.4 KiB
C
259 lines
6.4 KiB
C
#include "draw.h"
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#include "edit.h"
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#include "level.h"
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#include "geometry.h"
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#include <math.h>
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#include <gtk/gtk.h>
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#include <glib/gprintf.h>
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#include <cairo/cairo.h>
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static double scale = 100.0;
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static double xTranslate = 0.0, yTranslate = 0.0;
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static gboolean repaint = FALSE;
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static void drawGrid(cairo_t *cr, const RECTANGLE *rect) {
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double depth = log10(scale)-0.75;
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double depth2 = floor(depth);
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double step = pow(0.1, depth2);
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double d;
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int i;
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gchar buffer[20];
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cairo_set_font_size(cr, 10.0/scale);
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for(i = 0; 0.4*(depth-depth2+i-1) < 0.5; i++) {
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d = MIN(0.4*(depth-depth2+i), 0.5);
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cairo_set_source_rgb(cr, d, d, d);
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for(d = rect->x - fmod(rect->x, step) - step; d <= rect->x+rect->width; d+=step) {
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cairo_move_to(cr, d, rect->y);
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cairo_line_to(cr, d, rect->y+rect->height);
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if(step > 0.2)
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g_snprintf(buffer, sizeof(buffer), "%i", (int)rint(d));
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else
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g_snprintf(buffer, sizeof(buffer), "%.*f", -(int)floor(log10(step*1.1)), d+step/10);
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buffer[sizeof(buffer)-1] = '\0';
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cairo_move_to(cr, d+1/scale, rect->y+11/scale);
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cairo_show_text(cr, buffer);
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}
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for(d = rect->y - fmod(rect->y, step) - step; d <= rect->y+rect->height; d+=step) {
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cairo_move_to(cr, rect->x, d);
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cairo_line_to(cr, rect->x+rect->width, d);
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if(step > 0.5)
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g_snprintf(buffer, sizeof(buffer), "%i", (int)rint(d));
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else
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g_snprintf(buffer, sizeof(buffer), "%.*f", -(int)floor(log10(step*1.1)), d+step/10);
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buffer[sizeof(buffer)-1] = '\0';
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cairo_move_to(cr, rect->x+3/scale, d+11/scale);
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cairo_show_text(cr, buffer);
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}
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cairo_stroke(cr);
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step *= 10;
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}
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}
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static void room2path(cairo_t *cr, const ROOM *room, const RECTANGLE *rect) {
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int i;
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ROOM room2 = {0, NULL};
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// no vertices
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if(room->nVertices == 0) return;
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if(rect)
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simplifyPolygon(room, rect, &room2);
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else
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room2 = *room;
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if(room2.nVertices == 0) return;
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cairo_new_sub_path(cr);
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for(i = 0; i < room2.nVertices; i++) {
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cairo_line_to(cr, room2.vertices[i].x, room2.vertices[i].y);
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}
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cairo_close_path(cr);
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if(rect && room2.vertices)
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free(room2.vertices);
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}
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gboolean drawTopView(GtkWidget *widget, GdkEventExpose *event, gpointer data) {
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cairo_t *cr;
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VERTEX v1 = {-1, -1}, v2 = {widget->allocation.width+1, widget->allocation.height+1};
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RECTANGLE rect;
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static GdkPixmap *pixmap = NULL;
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static double lastImageWidth = 0.0, lastImageHeight = 0.0;
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static gint lastWidth = 0.0, lastHeight = 0.0;
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int i;
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if(getLevel() == NULL) return FALSE;
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viewToImage(&v1);
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viewToImage(&v2);
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rect.x = v1.x;
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rect.y = v1.y;
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rect.width = v2.x-v1.x;
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rect.height = v2.y-v1.y;
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if(pixmap == NULL || lastImageWidth != getImageWidth() || lastImageHeight != getImageHeight() ||
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lastWidth != widget->allocation.width || lastHeight != widget->allocation.height || repaint)
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{
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if(pixmap != NULL)
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g_object_unref(G_OBJECT(pixmap));
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pixmap = gdk_pixmap_new(widget->window, widget->allocation.width, widget->allocation.height, -1);
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lastImageWidth = getImageWidth();
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lastImageHeight = getImageHeight();
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lastWidth = widget->allocation.width;
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lastHeight = widget->allocation.height;
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repaint = FALSE;
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cr = gdk_cairo_create(GDK_DRAWABLE(pixmap));
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cairo_translate(cr, getImageWidth()/2-xTranslate, getImageHeight()/2-yTranslate);
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cairo_scale(cr, scale, scale);
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cairo_set_line_width(cr, 1.0/scale);
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cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_paint(cr);
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drawGrid(cr, &rect);
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for(i = 0; i < getLevel()->nRooms; i++) {
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if(&getLevel()->rooms[i] != getActiveRoom())
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room2path(cr, &getLevel()->rooms[i], &rect);
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}
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cairo_set_source_rgba(cr, 0.0, 0.7, 1.0, 0.3);
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cairo_fill_preserve(cr);
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cairo_set_source_rgba(cr, 0.0, 0.7, 1.0, 0.7);
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cairo_stroke(cr);
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if(getEditMode() == EDIT_MODE_SELECTED) {
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room2path(cr, getActiveRoom(), &rect);
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cairo_set_source_rgba(cr, 0.0, 0.7, 1.0, 0.2);
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cairo_fill_preserve(cr);
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cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.9);
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cairo_set_line_width(cr, 2.0/scale);
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cairo_stroke(cr);
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}
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cairo_destroy (cr);
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}
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gdk_draw_drawable(GDK_DRAWABLE(widget->window), widget->style->fg_gc[GTK_WIDGET_STATE(widget)], GDK_DRAWABLE(pixmap), 0, 0, 0, 0, -1, -1);
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if(getHoveredRoom() != NULL && getHoveredRoom() != getActiveRoom() &&
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(getEditMode() == EDIT_MODE_VIEW || getEditMode() == EDIT_MODE_SELECTED))
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{
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cr = gdk_cairo_create(GDK_DRAWABLE(widget->window));
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cairo_translate(cr, getImageWidth()/2-xTranslate, getImageHeight()/2-yTranslate);
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cairo_scale(cr, scale, scale);
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cairo_set_line_width(cr, 2.0/scale);
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cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
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room2path(cr, getHoveredRoom(), &rect);
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cairo_set_source_rgba(cr, 0.0, 0.7, 1.0, 0.7);
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cairo_stroke(cr);
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cairo_destroy (cr);
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}
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return FALSE;
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}
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double getScale() {
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return scale;
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}
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void setScale(double s) {
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scale = s;
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repaint = TRUE;
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}
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void imageToView(VERTEX *v) {
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v->x = v->x*scale+getImageWidth()/2-xTranslate;
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v->y = v->y*scale+getImageHeight()/2-yTranslate;
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}
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void viewToImage(VERTEX *v) {
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v->x = (v->x-getImageWidth()/2+xTranslate)/scale;
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v->y = (v->y-getImageHeight()/2+yTranslate)/scale;
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}
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double getImageWidth() {
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const LEVEL *level = getLevel();
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double min = 0.0, max = 0.0;
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int i, j;
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if(level) {
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for(i = 0; i < level->nRooms; i++) {
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for(j = 0; j < level->rooms[i].nVertices; j++) {
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min = MIN(min, level->rooms[i].vertices[j].x);
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max = MAX(max, level->rooms[i].vertices[j].x);
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}
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}
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}
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return (max-min+10)*scale;
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}
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double getImageHeight() {
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const LEVEL *level = getLevel();
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double min = 0.0, max = 0.0;
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int i, j;
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if(level) {
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for(i = 0; i < level->nRooms; i++) {
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for(j = 0; j < level->rooms[i].nVertices; j++) {
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min = MIN(min, level->rooms[i].vertices[j].y);
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max = MAX(max, level->rooms[i].vertices[j].y);
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}
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}
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}
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return (max-min+10)*scale;
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}
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double getXTranslate() {
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return xTranslate;
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}
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void setXTranslate(double x) {
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xTranslate = x;
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repaint = TRUE;
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}
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double getYTranslate() {
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return yTranslate;
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}
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void setYTranslate(double y) {
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yTranslate = y;
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repaint = TRUE;
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}
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void redraw() {
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repaint = TRUE;
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}
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