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/** \file
* \brief cdiuputil. CD and IUP utilities for the IupControls
*
* See Copyright Notice in "iup.h"
*/
#include <stdlib.h>
#include <stdarg.h>
#include <cd.h>
#include "iup.h"
#include "iup_attrib.h"
#include "iup_str.h"
#include "iup_drv.h"
#include "iup_cdutil.h"
long cdIupConvertColor(const char *color)
{
unsigned char r, g, b;
if (iupStrToRGB(color, &r, &g, &b))
return cdEncodeColor(r, g, b);
else
return 0;
}
void cdIupCalcShadows(long bgcolor, long *light_shadow, long *mid_shadow, long *dark_shadow)
{
int r, bg_r = cdRed(bgcolor);
int g, bg_g = cdGreen(bgcolor);
int b, bg_b = cdBlue(bgcolor);
/* light_shadow */
int max = bg_r;
if (bg_g > max) max = bg_g;
if (bg_b > max) max = bg_b;
if (255-max < 64)
{
r = 255;
g = 255;
b = 255;
}
else
{
/* preserve some color information */
if (bg_r == max) r = 255;
else r = bg_r + (255-max);
if (bg_g == max) g = 255;
else g = bg_g + (255-max);
if (bg_b == max) b = 255;
else b = bg_b + (255-max);
}
if (light_shadow) *light_shadow = cdEncodeColor((unsigned char)r, (unsigned char)g, (unsigned char)b);
/* dark_shadow */
r = bg_r - 128;
g = bg_g - 128;
b = bg_b - 128;
if (r < 0) r = 0;
if (g < 0) g = 0;
if (b < 0) b = 0;
if (dark_shadow) *dark_shadow = cdEncodeColor((unsigned char)r, (unsigned char)g, (unsigned char)b);
/* mid_shadow = (dark_shadow+bgcolor)/2 */
if (mid_shadow) *mid_shadow = cdEncodeColor((unsigned char)((bg_r+r)/2), (unsigned char)((bg_g+g)/2), (unsigned char)((bg_b+b)/2));
}
void cdIupDrawSunkenRect(cdCanvas *canvas, int x1, int y1, int x2, int y2, long light_shadow, long mid_shadow, long dark_shadow)
{
cdCanvasForeground(canvas, mid_shadow);
cdCanvasLine(canvas, x1, y1+1, x1, y2);
cdCanvasLine(canvas, x1, y2, x2-1, y2);
cdCanvasForeground(canvas, dark_shadow);
cdCanvasLine(canvas, x1+1, y1+2, x1+1, y2-1);
cdCanvasLine(canvas, x1+1, y2-1, x2-2, y2-1);
cdCanvasForeground(canvas, light_shadow);
cdCanvasLine(canvas, x1, y1, x2, y1);
cdCanvasLine(canvas, x2, y1, x2, y2);
}
void cdIupDrawRaisenRect(cdCanvas *canvas, int x1, int y1, int x2, int y2, long light_shadow, long mid_shadow, long dark_shadow)
{
cdCanvasForeground(canvas, light_shadow);
cdCanvasLine(canvas, x1, y1+1, x1, y2);
cdCanvasLine(canvas, x1, y2, x2-1, y2);
cdCanvasForeground(canvas, dark_shadow);
cdCanvasLine(canvas, x1, y1, x2, y1);
cdCanvasLine(canvas, x2, y1, x2, y2);
cdCanvasForeground(canvas, mid_shadow);
cdCanvasLine(canvas, x1+1, y1+1, x2-1, y1+1);
cdCanvasLine(canvas, x2-1, y1+2, x2-1, y2-1);
}
void cdIupDrawVertSunkenMark(cdCanvas *canvas, int x, int y1, int y2, long light_shadow, long dark_shadow)
{
cdCanvasForeground(canvas, dark_shadow);
cdCanvasLine(canvas, x-1, y1, x-1, y2);
cdCanvasForeground(canvas, light_shadow);
cdCanvasLine(canvas, x, y1, x, y2);
}
void cdIupDrawHorizSunkenMark(cdCanvas *canvas, int x1, int x2, int y, long light_shadow, long dark_shadow)
{
cdCanvasForeground(canvas, dark_shadow);
cdCanvasLine(canvas, x1, y+1, x2, y+1);
cdCanvasForeground(canvas, light_shadow);
cdCanvasLine(canvas, x1, y, x2, y);
}
void cdIupDrawFocusRect(Ihandle* ih, cdCanvas *canvas, int x1, int y1, int x2, int y2)
{
int y, x, w, h;
#ifdef WIN32
void* gc = cdCanvasGetAttribute(canvas, "HDC");
#else
void* gc = cdCanvasGetAttribute(canvas, "GC");
#endif
cdCanvasUpdateYAxis(canvas, &y1);
cdCanvasUpdateYAxis(canvas, &y2);
y = y1;
if (y2<y1) y = y2;
x = x1;
if (x2<x1) x = x2;
w = abs(x2-x1)+1;
h = abs(y2-y1)+1;
iupdrvDrawFocusRect(ih, gc, x, y, w, h);
}
void cdDrawFocusRect(cdCanvas *canvas, int x1, int y1, int x2, int y2)
{
int old_linestyle = cdCanvasLineStyle(canvas, CD_DOTTED);
int old_foreground = cdCanvasForeground(canvas, CD_WHITE);
int old_writemode = cdCanvasWriteMode(canvas, CD_XOR);
cdCanvasRect(canvas, x1, x2, y1, y2);
cdCanvasWriteMode(canvas, old_writemode);
cdCanvasForeground(canvas, old_foreground);
cdCanvasLineStyle(canvas, old_linestyle);
}
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