void wdCanvasGetTextBox(cdCanvas* canvas, double x, double y, const char *s, double *xmin, double *xmax, double *ymin, double *ymax)
{
int rx, ry, rxmin, rxmax, rymin, rymax;
_wWorld2Canvas(canvas, x, y, rx, ry);
cdCanvasGetTextBox(canvas, rx, ry, s, &rxmin, &rxmax, &rymin, &rymax);
_wCanvas2World(canvas, rxmin, rymin, *xmin, *ymin);
_wCanvas2World(canvas, rxmax, rymax, *xmax, *ymax);
}
void wdCanvasGetTextBox(cdCanvas* canvas, double x, double y, const char *s, double *xmin, double *xmax, double *ymin, double *ymax)
{
int rx, ry, rxmin, rxmax, rymin, rymax;
assert(canvas);
if (!_cdCheckCanvas(canvas)) return;
_wWorld2Canvas(canvas, x, y, rx, ry);
cdCanvasGetTextBox(canvas, rx, ry, s, &rxmin, &rxmax, &rymin, &rymax);
_wCanvas2World(canvas, rxmin, rymin, *xmin, *ymin);
_wCanvas2World(canvas, rxmax, rymax, *xmax, *ymax);
}
static void cdftext(cdCtxCanvas *ctxcanvas, double x, double y, const char *text, int len)
{
int xmin, xmax, ymin, ymax;
tPrimNode *prim = primCreate(CDPIC_FTEXT);
primAddAttrib_Text(prim, ctxcanvas->canvas);
prim->param.textf.x = x;
prim->param.textf.y = y;
prim->param.textf.s = cdStrDupN(text, len);
prim->param_buffer = prim->param.textf.s;
picAddPrim(ctxcanvas, prim);
cdCanvasGetTextBox(ctxcanvas->canvas, _cdRound(x), _cdRound(y), prim->param.text.s, &xmin, &xmax, &ymin, &ymax);
picUpdateBBox(ctxcanvas, xmin, ymin, 0);
picUpdateBBox(ctxcanvas, xmax, ymax, 0);
}
static void iGaugeDrawText(Ihandle* ih, int xmid)
{
int x, y, xmin, xmax, ymin, ymax;
char* text = ih->data->text;
cdIupSetFont(ih, ih->data->cddbuffer, IupGetAttribute(ih, "FONT"));
cdCanvasTextAlignment(ih->data->cddbuffer, CD_CENTER);
cdCanvasBackOpacity(ih->data->cddbuffer, CD_TRANSPARENT);
x = (int)(0.5 * ih->data->w);
y = (int)(0.5 * ih->data->h);
if(text == NULL)
{
char* m = iupStrGetMemory(30);
sprintf(m, "%.1f%%", 100 * (ih->data->value - ih->data->vmin) / (ih->data->vmax - ih->data->vmin));
text = m;
}
cdCanvasGetTextBox(ih->data->cddbuffer, x, y, text, &xmin, &xmax, &ymin, &ymax);
if(xmid < xmin)
{
cdCanvasForeground(ih->data->cddbuffer, ih->data->fgcolor);
cdCanvasText(ih->data->cddbuffer, x, y, text);
}
else if(xmid > xmax)
{
cdCanvasForeground(ih->data->cddbuffer, ih->data->bgcolor);
cdCanvasText(ih->data->cddbuffer, x, y, text);
}
else
{
cdCanvasClip(ih->data->cddbuffer, CD_CLIPAREA);
cdCanvasClipArea(ih->data->cddbuffer, xmin, xmid, ymin, ymax);
cdCanvasForeground(ih->data->cddbuffer, ih->data->bgcolor);
cdCanvasText(ih->data->cddbuffer, x, y, text);
cdCanvasClipArea(ih->data->cddbuffer, xmid, xmax, ymin, ymax);
cdCanvasForeground(ih->data->cddbuffer, ih->data->fgcolor);
cdCanvasText(ih->data->cddbuffer, x, y, text);
cdCanvasClip(ih->data->cddbuffer, CD_CLIPOFF);
}
}
bool iupPlot::CheckInsideTitle(cdCanvas* canvas, int x, int y)
{
// it does not depend on theMargin
if (mTitle.GetText())
{
SetTitleFont(canvas);
cdCanvasTextAlignment(canvas, CD_NORTH);
int xmin, xmax, ymin, ymax;
cdCanvasGetTextBox(canvas, mTitle.mPosX, mTitle.mPosY, mTitle.GetText(), &xmin, &xmax, &ymin, &ymax);
if (x >= xmin && x <= xmax &&
y >= ymin && y <= ymax)
return true;
}
return false;
}
void DrawTextBox(cdCanvas* canvas, int x, int y, char* text)
{
int rect[8], draw_box;
cdCanvasLineWidth(canvas, 1);
cdCanvasLineStyle(canvas, CD_CONTINUOUS);
draw_box = 0;
if (draw_box)
{
int xmin, xmax, ymin, ymax;
cdCanvasGetTextBox(canvas, x, y, text, &xmin, &xmax, &ymin, &ymax);
cdCanvasRect(canvas, xmin, xmax, ymin, ymax);
if (cdCanvasTextOrientation(canvas, CD_QUERY) == 0)
{
cdCanvasForeground(canvas, CD_RED);
cdCanvasLine(canvas, xmin, y, xmax, y);
}
}
else
{
/* bounding box */
cdCanvasGetTextBounds(canvas, x, y, text, rect);
cdCanvasForeground(canvas, CD_GREEN);
cdCanvasBegin(canvas, CD_CLOSED_LINES);
cdCanvasVertex(canvas, rect[0], rect[1]);
cdCanvasVertex(canvas, rect[2], rect[3]);
cdCanvasVertex(canvas, rect[4], rect[5]);
cdCanvasVertex(canvas, rect[6], rect[7]);
cdCanvasEnd(canvas);
}
/* reference point */
cdCanvasForeground(canvas, CD_BLUE);
cdCanvasMarkType(canvas, CD_PLUS);
cdCanvasMarkSize(canvas, 30);
cdCanvasMark(canvas, x, y);
cdCanvasForeground(canvas, CD_BLACK);
cdCanvasText(canvas, x, y, text);
}
void SimpleDrawTest(cdCanvas* canvas)
//void SimpleDrawMainTest(cdCanvas* canvas)
{
long pattern[16]; /* 4x4 pattern */
int w, h;
int xmin, xmax, ymin, ymax;
/* notice that if we are not using world coordinates
it is harder to position all the objetcs we want. */
cdCanvasGetSize(canvas, &w, &h, 0, 0);
cdCanvasBackground(canvas, CD_WHITE);
cdCanvasClear(canvas);
/* pattern initialization */
pattern[0] = CD_RED; pattern[1] = CD_RED; /* first line */
pattern[2] = CD_YELLOW; pattern[3] = CD_YELLOW;
pattern[4] = CD_RED; pattern[5] = CD_RED; /* second line */
pattern[6] = CD_YELLOW; pattern[7] = CD_YELLOW;
pattern[8] = CD_YELLOW; pattern[9] = CD_YELLOW; /* third line */
pattern[10] = CD_YELLOW; pattern[11] = CD_YELLOW;
pattern[12] = CD_YELLOW; pattern[13] = CD_YELLOW; /* fourth line */
pattern[14] = CD_YELLOW; pattern[15] = CD_YELLOW;
/* set the line attributes */
cdCanvasLineWidth(canvas, 4);
cdCanvasLineStyle(canvas, CD_CONTINUOUS);
/* in the center draw a pattern pizza
with a slice mising */
cdCanvasPattern(canvas, 4, 4, pattern);
cdCanvasSector(canvas, w/2, h/2, w/2, h/2, 45, 0);
/* draws a dark red border */
cdCanvasForeground(canvas, CD_DARK_RED);
cdCanvasInteriorStyle(canvas, CD_HOLLOW);
cdCanvasSector(canvas, w/2, h/2, w/2, h/2, 45, 0);
/* on the left a red hash diamond */
/* notice the the default back opacity is transparent
and the pattern of the sector will still be visible
inside the hatch where the two objects intersect */
cdCanvasForeground(canvas, CD_RED);
cdCanvasHatch(canvas, CD_DIAGCROSS);
cdCanvasBegin(canvas, CD_FILL);
cdCanvasVertex(canvas, w/4, h/4);
cdCanvasVertex(canvas, w/2-w/8, h/2);
cdCanvasVertex(canvas, w/4, 3*h/4);
cdCanvasVertex(canvas, w/8, h/2);
cdCanvasEnd(canvas);
/* draws a blue roof.*/
cdCanvasForeground(canvas, CD_BLUE);
cdCanvasLine(canvas, w/8, h/2, w/4, 3*h/4);
cdCanvasLine(canvas, w/4, 3*h/4, w/2-w/8, h/2);
/* draws a dashed ribbon on the right
with a custom color */
cdCanvasForeground(canvas, cdEncodeColor(100, 25, 200));
cdCanvasLineStyle(canvas, CD_DASH_DOT);
cdCanvasBegin(canvas, CD_BEZIER);
cdCanvasVertex(canvas, 3*w/4-20, h/2-50);
cdCanvasVertex(canvas, 3*w/4+150, 3*h/4-50);
cdCanvasVertex(canvas, 3*w/4-150, 3*h/4-50);
cdCanvasVertex(canvas, 3*w/4+20, h/2-50);
cdCanvasEnd(canvas);
cdCanvasFont(canvas, "Helvetica", CD_BOLD, 40);
cdCanvasTextAlignment(canvas, CD_CENTER);
cdCanvasText(canvas, w/2, h/4-50, "Canvas Draw");
cdCanvasGetTextBox(canvas, w/2, h/4-50, "Canvas Draw", &xmin, &xmax, &ymin, &ymax);
cdCanvasRect(canvas, xmin, xmax, ymin, ymax);
}
