static void iupgdkColorSet(GdkColor* c, long color)
{
c->red = iupCOLOR8TO16(iupDrawRed(color));
c->green = iupCOLOR8TO16(iupDrawGreen(color));
c->blue = iupCOLOR8TO16(iupDrawBlue(color));
c->pixel = 0;
}
static int iColorDlgColorCnvButton_CB(Ihandle* ih, int b, int press, int x, int y)
{
IcolorDlgData* colordlg_data = (IcolorDlgData*)iupAttribGetInherit(ih, "_IUP_GC_DATA");
int width;
(void)y;
if (b != IUP_BUTTON1 || !press)
return IUP_DEFAULT;
width = colordlg_data->color_cnv->currentwidth;
if (x < width/2)
{
/* reset color to previous */
colordlg_data->red = iupDrawRed(colordlg_data->previous_color);
colordlg_data->green = iupDrawGreen(colordlg_data->previous_color);
colordlg_data->blue = iupDrawBlue(colordlg_data->previous_color);
colordlg_data->alpha = iupDrawAlpha(colordlg_data->previous_color);
IupSetInt(colordlg_data->alpha_txt, "VALUE", (int)colordlg_data->alpha);
IupSetInt(colordlg_data->alpha_val, "VALUE", (int)colordlg_data->alpha);
iColorDlgRGB_TXT_Update(colordlg_data);
iColorDlgRGBChanged(colordlg_data);
}
return IUP_DEFAULT;
}
static void iColorDrawTransparentRectangle(Ihandle* color_cnv, int xmin, int ymin, int xmax, int ymax, long color)
{
if (iupDrawAlpha(color) == 255)
{
iupDrawSetColor(color_cnv, "DRAWCOLOR", color);
IupDrawRectangle(color_cnv, xmin, ymin, xmax, ymax);
}
else
{
int w = xmax - xmin + 1;
int h = ymax - ymin + 1;
Ihandle* image = IupImageRGBA(w,h,NULL);
unsigned char *colors = (unsigned char*)iupAttribGet(image, "WID");
int x, y;
unsigned char red = iupDrawRed(color);
unsigned char green = iupDrawGreen(color);
unsigned char blue = iupDrawBlue(color);
unsigned char alpha = iupDrawAlpha(color);
for (y = 0; y < h; y++)
{
for (x = 0; x < w; x++)
{
colors[0] = red;
colors[1] = green;
colors[2] = blue;
colors[3] = alpha;
colors += 4;
}
}
iupAttribSetHandleName(image);
IupDrawImage(color_cnv, iupAttribGetHandleName(image), xmin, ymin, -1, -1);
IupDestroy(image);
}
}
static int iColorDlgSetAlphaAttrib(Ihandle* ih, const char* value)
{
IcolorDlgData* colordlg_data = (IcolorDlgData*)iupAttribGetInherit(ih, "_IUP_GC_DATA");
int alpha;
if (iupStrToInt(value, &alpha))
{
colordlg_data->alpha = (unsigned char)alpha;
IupSetInt(colordlg_data->alpha_txt, "VALUE", (int)colordlg_data->alpha);
IupSetInt(colordlg_data->alpha_val, "VALUE", (int)colordlg_data->alpha);
colordlg_data->color = iupDrawColor(colordlg_data->red, colordlg_data->green, colordlg_data->blue, colordlg_data->alpha);
colordlg_data->previous_color = iupDrawColor(iupDrawRed(colordlg_data->previous_color), iupDrawGreen(colordlg_data->previous_color), iupDrawBlue(colordlg_data->previous_color), colordlg_data->alpha);
IupUpdate(colordlg_data->color_cnv);
if (!ih->handle) /* do it only before map */
IupSetAttribute(ih, "SHOWALPHA", "YES");
}
return 1;
}
