#include <X11/Xaw/AsciiText.h>
#include <X11/Xaw/Viewport.h>
+#include <cairo/cairo.h>
+#include <cairo/cairo-xlib.h>
+
#include "common.h"
#include "frontend.h"
#include "backend.h"
char *crWhite = "#FFFFB0";
char *crBlack = "#AD5D3D";
static Window eGraphWindow;
+static cairo_surface_t *cs;
-static GC pens[6]; // [HGM] put all pens in one array
-static GC hbrHist[3];
+static Option *EvalCallback P((int button, int x, int y));
+
+static float
+Color (char *col, int n)
+{
+ int c;
+ sscanf(col, "#%x", &c);
+ c = c >> 4*n & 255;
+ return c/255.;
+}
+
+static void
+SetPen(cairo_t *cr, float w, char *col, int dash) {
+ static const double dotted[] = {4.0, 4.0};
+ static int len = sizeof(dotted) / sizeof(dotted[0]);
+ cairo_set_line_width (cr, w);
+ cairo_set_source_rgba (cr, Color(col, 4), Color(col, 2), Color(col, 0), 1.0);
+ if(dash) cairo_set_dash (cr, dotted, len, 0.0);
+}
+
+static void
+ChoosePen(cairo_t *cr, int i)
+{
+ switch(i) {
+ case PEN_BLACK:
+ SetPen(cr, 1.0, "#000000", 0);
+ break;
+ case PEN_DOTTED:
+ SetPen(cr, 1.0, "#A0A0A0", 1);
+ break;
+ case PEN_BLUEDOTTED:
+ SetPen(cr, 0.5, "#0000FF", 1);
+ break;
+ case PEN_BOLDWHITE:
+ SetPen(cr, 3.0, crWhite, 0);
+ break;
+ case PEN_BOLDBLACK:
+ SetPen(cr, 3.0, crBlack, 0);
+ break;
+ case PEN_BACKGD:
+ SetPen(cr, 3.0, "#E0E0F0", 0);
+ break;
+ }
+}
// [HGM] front-end, added as wrapper to avoid use of LineTo and MoveToEx in other routines (so they can be back-end)
void
{
static int curX, curY;
- if(penType != PEN_NONE)
- XDrawLine(xDisplay, eGraphWindow, pens[penType], curX, curY, x, y);
+ if(penType != PEN_NONE) {
+ cairo_t *cr = cairo_create(cs);
+ cairo_move_to (cr, curX, curY);
+ cairo_line_to (cr, x,y);
+ cairo_close_path (cr);
+ ChoosePen(cr, penType);
+ cairo_stroke (cr);
+ cairo_destroy (cr);
+ }
+
if(lastX != NULL) { *lastX = curX; *lastY = curY; }
curX = x; curY = y;
}
void
DrawRectangle (int left, int top, int right, int bottom, int side, int style)
{
- XFillRectangle(xDisplay, eGraphWindow, hbrHist[side], left, top, right-left, bottom-top);
- if(style != FILLED)
- XDrawRectangle(xDisplay, eGraphWindow, pens[PEN_BLACK], left, top, right-left-1, bottom-top-1);
+ cairo_t *cr;
+
+ cr = cairo_create (cs);
+ cairo_rectangle (cr, left, top, right-left, bottom-top);
+ switch(side)
+ {
+ case 0: ChoosePen(cr, PEN_BOLDWHITE); break;
+ case 1: ChoosePen(cr, PEN_BOLDBLACK); break;
+ case 2: ChoosePen(cr, PEN_BACKGD); break;
+ }
+ cairo_fill (cr);
+
+ if(style != FILLED)
+ {
+ cairo_rectangle (cr, left, top, right-left-1, bottom-top-1);
+ ChoosePen(cr, PEN_BLACK);
+ cairo_stroke (cr);
+ }
+
+ cairo_destroy(cr);
}
// front-end wrapper for putting text in graph
DrawEvalText (char *buf, int cbBuf, int y)
{
// the magic constants 7 and 5 should really be derived from the font size somehow
- XDrawString(xDisplay, eGraphWindow, coordGC, MarginX - 2 - 7*cbBuf, y+5, buf, cbBuf);
-}
+ cairo_text_extents_t extents;
+ cairo_t *cr = cairo_create(cs);
-// front-end
-static Pixel
-MakeColor (char *color)
-{
- XrmValue vFrom, vTo;
-
- vFrom.addr = (caddr_t) color;
- vFrom.size = strlen(color);
- XtConvert(shells[EvalGraphDlg], XtRString, &vFrom, XtRPixel, &vTo);
- // test for NULL?
-
- return *(Pixel *) vTo.addr;
-}
+ /* GTK-TODO this has to go into the font-selection */
+ cairo_select_font_face (cr, "Sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size (cr, 12.0);
-static GC
-CreateGC (int width, char *fg, char *bg, int style)
-{
- XtGCMask value_mask = GCLineWidth | GCLineStyle | GCForeground
- | GCBackground | GCFunction | GCPlaneMask;
- XGCValues gc_values;
- gc_values.plane_mask = AllPlanes;
- gc_values.line_width = width;
- gc_values.line_style = style;
- gc_values.function = GXcopy;
+ cairo_text_extents (cr, buf, &extents);
- gc_values.foreground = MakeColor(fg);
- gc_values.background = MakeColor(bg);
+ cairo_move_to (cr, MarginX - 2 - 7*cbBuf, y+5);
+ cairo_text_path (cr, buf);
+ cairo_set_source_rgb (cr, 0.0, 0.0, 0);
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgb (cr, 0, 1.0, 0);
+ cairo_set_line_width (cr, 0.1);
+ cairo_stroke (cr);
- return XtGetGC(shells[EvalGraphDlg], value_mask, &gc_values);
+ /* free memory */
+ cairo_destroy (cr);
}
static int initDone = FALSE;
static void
-InitializeEvalGraph (Option *opt)
+InitializeEvalGraph (Option *opt, int w, int h)
{
eGraphWindow = XtWindow(opt->handle);
- pens[PEN_BLACK] = CreateGC(1, "black", "black", LineSolid);
- pens[PEN_DOTTED] = CreateGC(1, "#A0A0A0", "#A0A0A0", LineOnOffDash);
- pens[PEN_BLUEDOTTED] = CreateGC(1, "#0000FF", "#0000FF", LineOnOffDash);
- pens[PEN_BOLDWHITE] = CreateGC(3, crWhite, crWhite, LineSolid);
- pens[PEN_BOLDBLACK] = CreateGC(3, crBlack, crBlack, LineSolid);
- hbrHist[0] = CreateGC(3, crWhite, crWhite, LineSolid);
- hbrHist[1] = CreateGC(3, crBlack, crBlack, LineSolid);
- hbrHist[2] = CreateGC(3, "#E0E0F0", "#E0E0F0", LineSolid);; // background (a bit blueish, for contrst with yellow curve)
+ if(w == 0) {
+ Arg args[10];
+ XtSetArg(args[0], XtNwidth, &evalGraphW);
+ XtSetArg(args[1], XtNheight, &evalGraphH);
+ XtGetValues(opt->handle, args, 2);
+ nWidthPB = evalGraphW; nHeightPB = evalGraphH;
+ } else nWidthPB = w, nHeightPB = h;
+
+ if(cs) cairo_surface_destroy(cs);
+ cs=cairo_xlib_surface_create(xDisplay, eGraphWindow, DefaultVisual(xDisplay, 0), nWidthPB, nHeightPB);
initDone = TRUE;
}
if( index >= 0 && index < currLast ) ToNrEvent( index + 1 );
}
+static Option graphOptions[] = {
+{ 150, 0x9C, 300, NULL, (void*) &EvalCallback, NULL, NULL, Graph , "" },
+{ 0, 2, 0, NULL, NULL, "", NULL, EndMark , "" }
+};
+
static Option *
EvalCallback (int button, int x, int y)
{
switch(button) {
case 10: // expose event
/* Create or recreate paint box if needed */
+ if(x != nWidthPB || y != nHeightPB) {
+ InitializeEvalGraph(&graphOptions[0], x, y);
+ }
nWidthPB = x;
nHeightPB = y;
DisplayEvalGraph();
return NULL; // no context menu!
}
-static Option graphOptions[] = {
-{ 150, 0x9C, 300, NULL, (void*) &EvalCallback, NULL, NULL, Graph , "" },
-{ 0, 2, 0, NULL, NULL, "", NULL, EndMark , "" }
-};
-
void
EvalGraphPopUp ()
{
if (GenericPopUp(graphOptions, _(title), EvalGraphDlg, BoardWindow, NONMODAL, 1)) {
- InitializeEvalGraph(&graphOptions[0]); // first time: add callbacks and initialize pens
+ InitializeEvalGraph(&graphOptions[0], 0, 0); // first time: add callbacks and initialize pens
} else {
SetDialogTitle(EvalGraphDlg, _(title));
SetIconName(EvalGraphDlg, _(title));
projects / xboard.git / commitdiff