diff options
Diffstat (limited to 'iup/src/gtk/iupgtk_val.c')
| -rwxr-xr-x | iup/src/gtk/iupgtk_val.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/iup/src/gtk/iupgtk_val.c b/iup/src/gtk/iupgtk_val.c new file mode 100755 index 0000000..018af83 --- /dev/null +++ b/iup/src/gtk/iupgtk_val.c @@ -0,0 +1,208 @@ +/** \file + * \brief Valuator Control + * + * See Copyright Notice in "iup.h" + */ + +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <memory.h> +#include <stdarg.h> + +#include "iup.h" +#include "iupcbs.h" + +#include "iup_object.h" +#include "iup_layout.h" +#include "iup_attrib.h" +#include "iup_str.h" +#include "iup_val.h" +#include "iup_drv.h" +#include "iup_drvfont.h" +#include "iup_key.h" + +#include "iupgtk_drv.h" + + +void iupdrvValGetMinSize(Ihandle* ih, int *w, int *h) +{ + if (ih->data->type == IVAL_HORIZONTAL) + { + *w = 20; + *h = 35; + } + else + { + *w = 35; + *h = 20; + } +} + +static int gtkValSetStepAttrib(Ihandle* ih, const char* value) +{ + ih->data->step = atof(value); + gtk_range_set_increments(GTK_RANGE(ih->handle), ih->data->step, ih->data->pagestep); + return 0; /* do not store value in hash table */ +} + +static int gtkValSetPageStepAttrib(Ihandle* ih, const char* value) +{ + ih->data->pagestep = atof(value); + gtk_range_set_increments(GTK_RANGE(ih->handle), ih->data->step, ih->data->pagestep); + return 0; /* do not store value in hash table */ +} + +static int gtkValSetValueAttrib(Ihandle* ih, const char* value) +{ + double fval; + ih->data->val = atof(value); + fval = (ih->data->val-ih->data->vmin)/(ih->data->vmax - ih->data->vmin); + gtk_range_set_value(GTK_RANGE(ih->handle), fval); + return 0; /* do not store value in hash table */ +} + + +/*********************************************************************************************/ + + +static gboolean gtkValChangeValue(GtkRange *range, GtkScrollType scroll, double fval, Ihandle *ih) +{ + double old_val = ih->data->val; + IFn cb; + + if (fval < 0.0) + gtk_range_set_value(GTK_RANGE(ih->handle), 0.0); + if (fval > 1.0) + gtk_range_set_value(GTK_RANGE(ih->handle), 1.0); + + ih->data->val = fval*(ih->data->vmax - ih->data->vmin) + ih->data->vmin; + iupValCropValue(ih); + + cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB"); + if (cb) + { + if (ih->data->val == old_val) + return FALSE; + + cb(ih); + } + else + { + IFnd cb_old; + if (scroll == GTK_SCROLL_JUMP) /* scroll == 1 */ + cb_old = (IFnd)IupGetCallback(ih, "MOUSEMOVE_CB"); + else if((scroll >= GTK_SCROLL_STEP_BACKWARD) && (scroll <= GTK_SCROLL_END)) + cb_old = (IFnd)IupGetCallback(ih, "BUTTON_PRESS_CB"); + else + cb_old = (IFnd)IupGetCallback(ih, "BUTTON_RELEASE_CB"); + if (cb_old) + cb_old(ih, ih->data->val); + } + + if (fval < 0.0 || fval > 1.0) + return TRUE; + + (void)range; + return FALSE; +} + +static gboolean gtkValKeyPressEvent(GtkWidget *widget, GdkEventKey *evt, Ihandle *ih) +{ + if (iupgtkKeyPressEvent(widget, evt, ih) == TRUE) + return TRUE; + + /* change Home and End default behaviour */ + if (ih->data->inverted) + { + if (evt->keyval==GDK_Home || evt->keyval==GDK_KP_Home) + { + /* set to maximum */ + gtk_range_set_value(GTK_RANGE(ih->handle), 1.0); + gtkValChangeValue(GTK_RANGE(ih->handle), GTK_SCROLL_START, 1.0, ih); + return TRUE; + } + if (evt->keyval==GDK_End || evt->keyval==GDK_KP_End) + { + /* set to minimum */ + gtk_range_set_value(GTK_RANGE(ih->handle), 0.0); + gtkValChangeValue(GTK_RANGE(ih->handle), GTK_SCROLL_END, 0.0, ih); + return TRUE; + } + } + + return FALSE; +} + +/*********************************************************************************************/ + + +static int gtkValMapMethod(Ihandle* ih) +{ + GtkObject *adjustment; + + /* value, lower, upper, step_increment, page_increment, page_size */ + /* page_size value only makes a difference for scrollbar widgets */ + adjustment = gtk_adjustment_new (0, 0, 1.0, 0.01, 0.1, 0); + if (!adjustment) + return IUP_ERROR; + + if (ih->data->type == IVAL_HORIZONTAL) + ih->handle = gtk_hscale_new(GTK_ADJUSTMENT(adjustment)); + else + ih->handle = gtk_vscale_new(GTK_ADJUSTMENT(adjustment)); + + if (!ih->handle) + return IUP_ERROR; + + /* add to the parent, all GTK controls must call this. */ + iupgtkBaseAddToParent(ih); + + if (!iupAttribGetBoolean(ih, "CANFOCUS")) + GTK_WIDGET_FLAGS(ih->handle) &= ~GTK_CAN_FOCUS; + + g_signal_connect(G_OBJECT(ih->handle), "enter-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih); + g_signal_connect(G_OBJECT(ih->handle), "leave-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih); + g_signal_connect(G_OBJECT(ih->handle), "focus-in-event", G_CALLBACK(iupgtkFocusInOutEvent), ih); + g_signal_connect(G_OBJECT(ih->handle), "focus-out-event", G_CALLBACK(iupgtkFocusInOutEvent), ih); + g_signal_connect(G_OBJECT(ih->handle), "show-help", G_CALLBACK(iupgtkShowHelp), ih); + + g_signal_connect(G_OBJECT(ih->handle), "key-press-event", G_CALLBACK(gtkValKeyPressEvent), ih); + g_signal_connect(G_OBJECT(ih->handle), "change-value", G_CALLBACK(gtkValChangeValue), ih); + + /* configure the scale */ + gtk_scale_set_draw_value(GTK_SCALE(ih->handle), FALSE); + gtk_range_set_range(GTK_RANGE(ih->handle), 0.0, 1.0); + + if (ih->data->inverted) + gtk_range_set_inverted(GTK_RANGE(ih->handle), TRUE); + + gtk_widget_realize(ih->handle); + + /* update a mnemonic in a label if necessary */ + iupgtkUpdateMnemonic(ih); + + return IUP_NOERROR; +} + +void iupdrvValInitClass(Iclass* ic) +{ + /* Driver Dependent Class functions */ + ic->Map = gtkValMapMethod; + + /* Driver Dependent Attribute functions */ + + /* Visual */ + iupClassRegisterAttribute(ic, "BGCOLOR", NULL, iupdrvBaseSetBgColorAttrib, IUPAF_SAMEASSYSTEM, "DLGBGCOLOR", IUPAF_DEFAULT); + + /* Special */ + + /* IupVal only */ + iupClassRegisterAttribute(ic, "VALUE", iupValGetValueAttrib, gtkValSetValueAttrib, NULL, NULL, IUPAF_NO_DEFAULTVALUE|IUPAF_NO_INHERIT); + iupClassRegisterAttribute(ic, "PAGESTEP", iupValGetPageStepAttrib, gtkValSetPageStepAttrib, IUPAF_SAMEASSYSTEM, "0.1", IUPAF_NO_INHERIT); + iupClassRegisterAttribute(ic, "STEP", iupValGetStepAttrib, gtkValSetStepAttrib, IUPAF_SAMEASSYSTEM, "0.01", IUPAF_NO_INHERIT); + iupClassRegisterAttribute(ic, "SHOWTICKS", NULL, NULL, NULL, NULL, IUPAF_WRITEONLY|IUPAF_READONLY); /* showticks is not supported in GTK */ +} |