diff options
Diffstat (limited to 'iup/src/iup_fill.c')
| -rwxr-xr-x | iup/src/iup_fill.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/iup/src/iup_fill.c b/iup/src/iup_fill.c new file mode 100755 index 0000000..4cad3c0 --- /dev/null +++ b/iup/src/iup_fill.c @@ -0,0 +1,242 @@ +/** \file + * \brief Fill 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" + + +enum {IUP_FILL_NONE, IUP_FILL_HORIZ, IUP_FILL_VERT}; + +struct _IcontrolData +{ + int dir; +}; + +static int iFillGetDir(Ihandle* ih) +{ + if (!ih->parent) + return IUP_FILL_NONE; + + if (ih->data->dir != IUP_FILL_NONE) + return ih->data->dir; + + /* Its parent must be an IupHbox or an IupVbox. */ + if (ih->parent->iclass->nativetype == IUP_TYPEVOID) + { + if (iupStrEqual(ih->parent->iclass->name, "hbox")) + ih->data->dir = IUP_FILL_HORIZ; + else if (iupStrEqual(ih->parent->iclass->name, "vbox")) + ih->data->dir = IUP_FILL_VERT; + } + + return ih->data->dir; +} + +static int iFillMapMethod(Ihandle* ih) +{ + iFillGetDir(ih); + return iupBaseTypeVoidMapMethod(ih); +} + +static void iFillUnMapMethod(Ihandle* ih) +{ + ih->data->dir = IUP_FILL_NONE; +} + +static int iFillSetRasterSizeAttrib(Ihandle* ih, const char* value) +{ + if (!value) + { + ih->userwidth = 0; + ih->userheight = 0; + } + else + { + int s = 0; + if (iFillGetDir(ih) == IUP_FILL_NONE) /* if Fill is not yet a child of a Vbox or Hbox */ + { + iupAttribSetStr(ih, "SIZE", NULL); + return 1; + } + + iupStrToInt(value, &s); + if (s > 0) + { + if (iFillGetDir(ih) == IUP_FILL_HORIZ) + { + ih->userwidth = s; /* inside HBOX */ + ih->userheight = 0; + } + else + { + ih->userheight = s; /* inside VBOX */ + ih->userwidth = 0; + } + } + } + iupAttribSetStr(ih, "SIZE", NULL); + return 0; +} + +static int iFillSetSizeAttrib(Ihandle* ih, const char* value) +{ + if (!value) + { + ih->userwidth = 0; + ih->userheight = 0; + } + else + { + int s = 0; + if (iFillGetDir(ih) == IUP_FILL_NONE) /* if Fill is not yet a child of a Vbox or Hbox */ + { + iupAttribSetStr(ih, "RASTERSIZE", NULL); + return 1; + } + + iupStrToInt(value, &s); + if (s > 0) + { + int charwidth, charheight; + iupdrvFontGetCharSize(ih, &charwidth, &charheight); + if (iFillGetDir(ih) == IUP_FILL_HORIZ) + { + ih->userwidth = iupWIDTH2RASTER(s, charwidth); /* inside HBOX */ + ih->userheight = 0; + } + else + { + ih->userheight = iupHEIGHT2RASTER(s, charheight); /* inside VBOX */ + ih->userwidth = 0; + } + } + } + iupAttribSetStr(ih, "RASTERSIZE", NULL); + return 1; +} + +static char* iFillGetExpandAttrib(Ihandle* ih) +{ + if (iFillGetDir(ih) == IUP_FILL_NONE) /* if Fill is not yet a child of a Vbox or Hbox */ + return "NO"; + + /* if size is not defined, then expansion on that direction is permited */ + if (iFillGetDir(ih) == IUP_FILL_HORIZ) + { + if (ih->userwidth <= 0) + return "HORIZONTAL"; + } + else + { + if (ih->userheight <= 0) + return "VERTICAL"; + } + + return "NO"; +} + +static void iFillUpdateSize(Ihandle* ih) +{ + char* value = iupAttribGet(ih, "SIZE"); + if (value) + { + iFillSetSizeAttrib(ih, value); + iupAttribSetStr(ih, "SIZE", NULL); + } + value = iupAttribGet(ih, "RASTERSIZE"); + if (value) + { + iFillSetRasterSizeAttrib(ih, value); + iupAttribSetStr(ih, "RASTERSIZE", NULL); + } +} + +static void iFillComputeNaturalSizeMethod(Ihandle* ih, int *w, int *h, int *expand) +{ + (void)expand; /* unset if not a container */ + + /* EXPAND is initialized as none for FILL */ + ih->expand = IUP_EXPAND_NONE; + + iFillUpdateSize(ih); + + /* always initialize the natural size using the user size, + must do this again because of iFillUpdateSize */ + ih->naturalwidth = ih->userwidth; + ih->naturalheight = ih->userheight; + + if (iFillGetDir(ih) == IUP_FILL_NONE) /* if Fill is not a child of a Vbox or Hbox */ + return; + + /* if size is NOT defined, then expansion on that direction is permited */ + if (iFillGetDir(ih) == IUP_FILL_HORIZ) + { + if (ih->naturalwidth <= 0) + ih->expand = IUP_EXPAND_W0; + } + else + { + if (ih->naturalheight <= 0) + ih->expand = IUP_EXPAND_H0; + } + + *w = ih->naturalwidth; + *h = ih->naturalheight; +} + +static int iFillCreateMethod(Ihandle* ih, void** params) +{ + (void)params; + ih->data = iupALLOCCTRLDATA(); + return IUP_NOERROR; +} + +/******************************************************************************/ + +Ihandle* IupFill(void) +{ + return IupCreate("fill"); +} + +Iclass* iupFillGetClass(void) +{ + Iclass* ic = iupClassNew(NULL); + + ic->name = "fill"; + ic->format = NULL; /* no parameters */ + ic->nativetype = IUP_TYPEVOID; + ic->childtype = IUP_CHILDNONE; + ic->is_interactive = 0; + + /* Class functions */ + ic->Create = iFillCreateMethod; + ic->Map = iFillMapMethod; + ic->UnMap = iFillUnMapMethod; + ic->ComputeNaturalSize = iFillComputeNaturalSizeMethod; + + /* Common */ + iupBaseRegisterCommonAttrib(ic); + + /* Overwrite Common */ + iupClassRegisterAttribute(ic, "SIZE", iupBaseGetSizeAttrib, iFillSetSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT); + iupClassRegisterAttribute(ic, "RASTERSIZE", iupBaseGetRasterSizeAttrib, iFillSetRasterSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT); + + /* Base */ + iupClassRegisterAttribute(ic, "EXPAND", iFillGetExpandAttrib, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT); + + return ic; +} |