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/** \file
* \brief Button Control.
*
* See Copyright Notice in "iup.h"
*/
#include <stdio.h>
#include <stdlib.h>
#include "iup.h"
#include "iupcbs.h"
#include "iup_object.h"
#include "iup_attrib.h"
#include "iup_str.h"
#include "iup_drv.h"
#include "iup_drvfont.h"
#include "iup_stdcontrols.h"
#include "iup_layout.h"
#include "iup_button.h"
#include "iup_image.h"
char* iupButtonGetPaddingAttrib(Ihandle* ih)
{
char *str = iupStrGetMemory(50);
sprintf(str, "%dx%d", ih->data->horiz_padding, ih->data->vert_padding);
return str;
}
static int iButtonSetImagePositionAttrib(Ihandle* ih, const char* value)
{
if (!ih->handle) /* set only before map */
{
if (iupStrEqualNoCase(value, "RIGHT"))
ih->data->img_position = IUP_IMGPOS_RIGHT;
else if (iupStrEqualNoCase(value, "BOTTOM"))
ih->data->img_position = IUP_IMGPOS_BOTTOM;
else if (iupStrEqualNoCase(value, "TOP"))
ih->data->img_position = IUP_IMGPOS_TOP;
else /* "LEFT" */
ih->data->img_position = IUP_IMGPOS_LEFT;
}
return 0;
}
static char* iButtonGetImagePositionAttrib(Ihandle *ih)
{
char* img_pos2str[4] = {"LEFT", "RIGHT", "TOP", "BOTTOM"};
char *str = iupStrGetMemory(50);
sprintf(str, "%s", img_pos2str[ih->data->img_position]);
return str;
}
static int iButtonSetSpacingAttrib(Ihandle* ih, const char* value)
{
if (!ih->handle) /* set only before map */
iupStrToInt(value, &ih->data->spacing);
return 0;
}
static char* iButtonGetSpacingAttrib(Ihandle *ih)
{
char *str = iupStrGetMemory(50);
sprintf(str, "%d", ih->data->spacing);
return str;
}
/*****************************************************************************************/
static int iButtonCreateMethod(Ihandle* ih, void** params)
{
if (params)
{
if (params[0]) iupAttribStoreStr(ih, "TITLE", (char*)(params[0]));
if (params[1]) iupAttribStoreStr(ih, "ACTION", (char*)(params[1]));
}
ih->data = iupALLOCCTRLDATA();
ih->data->spacing = 2;
/* used only by the Windows driver */
ih->data->horiz_alignment = IUP_ALIGN_ACENTER;
ih->data->vert_alignment = IUP_ALIGN_ACENTER;
return IUP_NOERROR;
}
static void iButtonComputeNaturalSizeMethod(Ihandle* ih, int *w, int *h, int *expand)
{
int natural_w = 0,
natural_h = 0,
type = ih->data->type;
(void)expand; /* unset if not a container */
if (!ih->handle)
{
/* if not mapped must initialize the internal values */
char* value = iupAttribGet(ih, "IMAGE");
if (value)
{
char* title = iupAttribGet(ih, "TITLE");
type = IUP_BUTTON_IMAGE;
if (title && *title!=0)
type |= IUP_BUTTON_TEXT;
}
else
type = IUP_BUTTON_TEXT;
}
if (type & IUP_BUTTON_IMAGE)
{
iupImageGetInfo(iupAttribGet(ih, "IMAGE"), &natural_w, &natural_h, NULL);
if (type & IUP_BUTTON_TEXT)
{
int text_w, text_h;
/* must use IupGetAttribute to check from the native implementation */
char* title = IupGetAttribute(ih, "TITLE");
iupdrvFontGetMultiLineStringSize(ih, title, &text_w, &text_h);
if (ih->data->img_position == IUP_IMGPOS_RIGHT ||
ih->data->img_position == IUP_IMGPOS_LEFT)
{
natural_w += text_w + ih->data->spacing;
natural_h = iupMAX(natural_h, text_h);
}
else
{
natural_w = iupMAX(natural_w, text_w);
natural_h += text_h + ih->data->spacing;
}
}
}
else /* IUP_BUTTON_TEXT only */
{
/* must use IupGetAttribute to check from the native implementation */
char* title = IupGetAttribute(ih, "TITLE");
char* str = iupStrProcessMnemonic(title, NULL, 0); /* remove & */
iupdrvFontGetMultiLineStringSize(ih, str, &natural_w, &natural_h);
if (str && str!=title) free(str);
}
/* even when IMPRESS is set, must compute the borders space */
iupdrvButtonAddBorders(&natural_w, &natural_h);
natural_w += 2*ih->data->horiz_padding;
natural_h += 2*ih->data->vert_padding;
*w = natural_w;
*h = natural_h;
}
/******************************************************************************/
Ihandle* IupButton(const char* title, const char* action)
{
void *params[3];
params[0] = (void*)title;
params[1] = (void*)action;
params[2] = NULL;
return IupCreatev("button", params);
}
Iclass* iupButtonGetClass(void)
{
Iclass* ic = iupClassNew(NULL);
ic->name = "button";
ic->format = "SA"; /* one optional string, and one optional callback name */
ic->nativetype = IUP_TYPECONTROL;
ic->childtype = IUP_CHILDNONE;
ic->is_interactive = 1;
/* Class functions */
ic->Create = iButtonCreateMethod;
ic->ComputeNaturalSize = iButtonComputeNaturalSizeMethod;
ic->LayoutUpdate = iupdrvBaseLayoutUpdateMethod;
ic->UnMap = iupdrvBaseUnMapMethod;
/* Callbacks */
iupClassRegisterCallback(ic, "BUTTON_CB", "iiiis");
iupClassRegisterCallback(ic, "ACTION", "");
/* Common Callbacks */
iupBaseRegisterCommonCallbacks(ic);
/* Common */
iupBaseRegisterCommonAttrib(ic);
/* Visual */
iupBaseRegisterVisualAttrib(ic);
/* IupButton only */
iupClassRegisterAttribute(ic, "SPACING", iButtonGetSpacingAttrib, iButtonSetSpacingAttrib, IUPAF_SAMEASSYSTEM, "2", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
iupClassRegisterAttribute(ic, "IMAGEPOSITION", iButtonGetImagePositionAttrib, iButtonSetImagePositionAttrib, IUPAF_SAMEASSYSTEM, "LEFT", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
iupClassRegisterAttribute(ic, "IMPRESSBORDER", NULL, NULL, NULL, NULL, IUPAF_NO_INHERIT);
iupClassRegisterAttribute(ic, "FLAT", NULL, NULL, NULL, NULL, IUPAF_DEFAULT);
iupdrvButtonInitClass(ic);
return ic;
}
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