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/** \file
* \brief Draw Functions
*
* See Copyright Notice in "iup.h"
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <memory.h>
#include <Xm/Xm.h>
#include <X11/Xlib.h>
#include "iup.h"
#include "iup_attrib.h"
#include "iup_class.h"
#include "iup_str.h"
#include "iup_object.h"
#include "iup_image.h"
#include "iup_draw.h"
#include "iupmot_drv.h"
#include "iupmot_color.h"
struct _IdrawCanvas{
Ihandle* ih;
int w, h;
Window wnd;
Pixmap pixmap;
GC pixmap_gc, gc;
};
static void motDrawGetGeometry(Display *dpy, Drawable wnd, int *_w, int *_h, int *_d)
{
Window root;
int x, y;
unsigned int w, h, b, d;
XGetGeometry(dpy, wnd, &root, &x, &y, &w, &h, &b, &d);
*_w = w;
*_h = h;
*_d = d;
}
IdrawCanvas* iupDrawCreateCanvas(Ihandle* ih)
{
IdrawCanvas* dc = calloc(1, sizeof(IdrawCanvas));
int depth;
dc->wnd = XtWindow(ih->handle);
dc->gc = XCreateGC(iupmot_display, dc->wnd, 0, NULL);
motDrawGetGeometry(iupmot_display, dc->wnd, &dc->w, &dc->h, &depth);
dc->pixmap = XCreatePixmap(iupmot_display, dc->wnd, dc->w, dc->h, depth);
dc->pixmap_gc = XCreateGC(iupmot_display, dc->pixmap, 0, NULL);
return dc;
}
void iupDrawKillCanvas(IdrawCanvas* dc)
{
XFreeGC(iupmot_display, dc->pixmap_gc);
XFreePixmap(iupmot_display, dc->pixmap);
XFreeGC(iupmot_display, dc->gc);
free(dc);
}
void iupDrawUpdateSize(IdrawCanvas* dc)
{
int w, h, depth;
motDrawGetGeometry(iupmot_display, dc->wnd, &w, &h, &depth);
if (w != dc->w || h != dc->h)
{
XFreeGC(iupmot_display, dc->pixmap_gc);
XFreePixmap(iupmot_display, dc->pixmap);
dc->pixmap = XCreatePixmap(iupmot_display, dc->wnd, dc->w, dc->h, depth);
dc->pixmap_gc = XCreateGC(iupmot_display, dc->pixmap, 0, NULL);
}
}
void iupDrawFlush(IdrawCanvas* dc)
{
XCopyArea(iupmot_display, dc->pixmap, dc->wnd, dc->gc, 0, 0, dc->w, dc->h, 0, 0);
}
void iupDrawGetSize(IdrawCanvas* dc, int *w, int *h)
{
if (w) *w = dc->w;
if (h) *h = dc->h;
}
void iupDrawParentBackground(IdrawCanvas* dc)
{
unsigned char r=0, g=0, b=0;
char* color = iupBaseNativeParentGetBgColorAttrib(dc->ih);
iupStrToRGB(color, &r, &g, &b);
iupDrawRectangle(dc, 0, 0, dc->w-1, dc->h-1, r, g, b, 1);
}
void iupDrawRectangle(IdrawCanvas* dc, int x1, int y1, int x2, int y2, unsigned char r, unsigned char g, unsigned char b, int filled)
{
XSetForeground(iupmot_display, dc->pixmap_gc, iupmotColorGetPixel(r, g, b));
if (filled)
XFillRectangle(iupmot_display, dc->pixmap, dc->pixmap_gc, x1, y1, x2-x1+1, y2-y1+1);
else
XDrawRectangle(iupmot_display, dc->pixmap, dc->pixmap_gc, x1, y1, x2-x1+1, y2-y1+1);
}
void iupDrawLine(IdrawCanvas* dc, int x1, int y1, int x2, int y2, unsigned char r, unsigned char g, unsigned char b)
{
XSetForeground(iupmot_display, dc->pixmap_gc, iupmotColorGetPixel(r, g, b));
XDrawLine(iupmot_display, dc->pixmap, dc->pixmap_gc, x1, y1, x2, y2);
}
void iupDrawArc(IdrawCanvas* dc, int x1, int y1, int x2, int y2, double a1, double a2, unsigned char r, unsigned char g, unsigned char b, int filled)
{
XSetForeground(iupmot_display, dc->pixmap_gc, iupmotColorGetPixel(r, g, b));
if (filled)
{
XSetArcMode(iupmot_display, dc->pixmap_gc, ArcPieSlice);
XFillArc(iupmot_display, dc->pixmap, dc->pixmap_gc, x1, y1, x2-x1+1, y2-y1+1, iupROUND(a1*64), iupROUND((a2 - a1)*64));
}
else
XDrawArc(iupmot_display, dc->pixmap, dc->pixmap_gc, x1, y1, x2-x1+1, y2-y1+1, iupROUND(a1*64), iupROUND((a2 - a1)*64));
}
void iupDrawPolygon(IdrawCanvas* dc, int* points, int count, unsigned char r, unsigned char g, unsigned char b, int filled)
{
int i;
XPoint* pnt = (XPoint*)malloc(count*sizeof(XPoint)); /* XPoint uses short for coordinates */
for (i = 0; i < count; i++)
{
pnt[i].x = (short)points[2*i];
pnt[i].y = (short)points[2*i+1];
}
XSetForeground(iupmot_display, dc->pixmap_gc, iupmotColorGetPixel(r, g, b));
if (filled)
XFillPolygon(iupmot_display, dc->pixmap, dc->pixmap_gc, pnt, count, Complex, CoordModeOrigin);
else
XDrawLines(iupmot_display, dc->pixmap, dc->pixmap_gc, pnt, count, CoordModeOrigin);
free(pnt);
}
void iupDrawSetClipRect(IdrawCanvas* dc, int x1, int y1, int x2, int y2)
{
XRectangle rect;
rect.x = (short)x1;
rect.y = (short)y1;
rect.width = (unsigned short)(x2-x1+1);
rect.height = (unsigned short)(y2-y1+1);
XSetClipRectangles(iupmot_display, dc->pixmap_gc, 0, 0, &rect, 1, Unsorted);
}
void iupDrawResetClip(IdrawCanvas* dc)
{
XSetClipMask(iupmot_display, dc->pixmap_gc, None);
}
void iupDrawText(IdrawCanvas* dc, const char* text, int len, int x, int y, unsigned char r, unsigned char g, unsigned char b)
{
XFontStruct* xfont = (XFontStruct*)IupGetAttribute(dc->ih, "XFONTSTRUCT");
XSetForeground(iupmot_display, dc->pixmap_gc, iupmotColorGetPixel(r, g, b));
XSetFont(iupmot_display, dc->pixmap_gc, xfont->fid);
XDrawString(iupmot_display, dc->pixmap, dc->pixmap_gc, x, y-xfont->ascent, text, len);
}
void iupDrawImage(IdrawCanvas* dc, const char* name, int make_inactive, int x, int y)
{
int img_w, img_h, bpp;
Pixmap pixmap = (Pixmap)iupImageGetImage(name, dc->ih, make_inactive);
if (!pixmap)
return;
/* must use this info, since image can be a driver image loaded from resources */
iupdrvImageGetInfo((void*)pixmap, &img_w, &img_h, &bpp);
XCopyArea(iupmot_display, pixmap, dc->pixmap, dc->pixmap_gc, 0, 0, img_w, img_h, x, y);
}
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