diff options
Diffstat (limited to 'app/wlib/gtklib/control.c')
| -rw-r--r-- | app/wlib/gtklib/control.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/app/wlib/gtklib/control.c b/app/wlib/gtklib/control.c new file mode 100644 index 0000000..e824c94 --- /dev/null +++ b/app/wlib/gtklib/control.c @@ -0,0 +1,283 @@ +/** \file control.c + * Control Utilities + */ +/* + * Copyright 2016 Martin Fischer <m_fischer@sf.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + * + * + */ + +#include <stdio.h> +#include <stdlib.h> + +#define GTK_DISABLE_SINGLE_INCLUDES +#define GDK_DISABLE_DEPRECATED +#define GTK_DISABLE_DEPRECATED +#define GSEAL_ENABLE + +#include <gtk/gtk.h> +#include <gdk/gdk.h> + +#include "gtkint.h" + +#define GTKCONTROLHILITEWIDTH (3) + +/** + * Cause the control <b> to be displayed or hidden. + * Used to hide control (such as a list) while it is being updated. + * + * \param b IN Control + * \param show IN TRUE for visible + */ + +void wControlShow( + wControl_p b, + wBool_t show) +{ + if (b->type == B_LINES) { + wlibLineShow((wLine_p)b, show); + return; + } + + if (b->widget == NULL) { + abort(); + } + + if (show) { + gtk_widget_show(b->widget); + + if (b->label) { + gtk_widget_show(b->label); + } + } else { + gtk_widget_hide(b->widget); + + if (b->label) { + gtk_widget_hide(b->label); + } + } +} + +/** + * Cause the control <b> to be marked active or inactive. + * Inactive controls donot respond to actions. + * + * \param b IN Control + * \param active IN TRUE for active + */ + +void wControlActive( + wControl_p b, + int active) +{ + if (b->widget == NULL) { + abort(); + } + + gtk_widget_set_sensitive(GTK_WIDGET(b->widget), active); +} + +/** + * Returns the width of <label>. + * This is used for computing window layout. + * Typically the width to the longest label is computed and used as + * the X-position for <controls>. + * + * \param label IN label + * \returns width of label including some space +*/ + +wPos_t wLabelWidth( + const char * label) +{ + GtkWidget * widget; + GtkRequisition requisition; + widget = gtk_label_new(wlibConvertInput(label)); + gtk_widget_size_request(widget, &requisition); + gtk_widget_destroy(widget); + return requisition.width+8; +} + +/** + * Get width of a control + * + * \param b IN Control + * \returns width + */ + +wPos_t wControlGetWidth( + wControl_p b) +{ + return b->w; +} + +/** + * Get height of a control + * + * \param b IN Control + * \returns height + */ + +wPos_t wControlGetHeight( + wControl_p b) +{ + return b->h; +} + +/** + * Get x position of a control + * + * \param b IN Control + * \returns position + */ + +wPos_t wControlGetPosX( + wControl_p b) /* Control */ +{ + return b->realX; +} + +/** + * Get y position of a control + * + * \param b IN Control + * \returns position + */ + +wPos_t wControlGetPosY( + wControl_p b) /* Control */ +{ + return b->realY - BORDERSIZE - ((b->parent->option&F_MENUBAR)?MENUH:0); +} + +/** + * Set the fixed position of a control within its parent window + * + * \param b IN control + * \param x IN x position + * \param y IN y position + */ + +void wControlSetPos( + wControl_p b, + wPos_t x, + wPos_t y) +{ + b->realX = x; + b->realY = y + BORDERSIZE + ((b->parent->option&F_MENUBAR)?MENUH:0); + + if (b->widget) { + gtk_fixed_move(GTK_FIXED(b->parent->widget), b->widget, b->realX, b->realY); + } + + if (b->label) { + gtk_fixed_move(GTK_FIXED(b->parent->widget), b->label, b->realX-b->labelW, + b->realY+LABEL_OFFSET); + } +} + +/** + * Set the label for a control + * + * \param b IN control + * \param labelStr IN the new label + */ + +void wControlSetLabel( + wControl_p b, + const char * labelStr) +{ + GtkRequisition requisition; + + if (b->label) { + gtk_label_set_text(GTK_LABEL(b->label), wlibConvertInput(labelStr)); + gtk_widget_size_request(b->label, &requisition); + b->labelW = requisition.width+8; + gtk_fixed_move(GTK_FIXED(b->parent->widget), b->label, b->realX-b->labelW, + b->realY+LABEL_OFFSET); + } else { + b->labelW = wlibAddLabel(b, labelStr); + } +} + +/** + * Set the context ie. additional user data for a control + * + * \param b IN control + * \param context IN user date + */ + +void wControlSetContext( + wControl_p b, + void * context) +{ + b->data = context; +} + +/** + * Not implemented + * + * \param b IN + */ + +void wControlSetFocus( + wControl_p b) +{ +} + +/** + * Draw a rectangle around a control + * \param b IN the control + * \param hilite IN unused + * \returns + * + * + */ +void wControlHilite( + wControl_p b, + wBool_t hilite) +{ + cairo_t *cr; + int off = GTKCONTROLHILITEWIDTH/2+1; + + if (b->widget == NULL) { + return; + } + + if (! gtk_widget_get_visible(b->widget)) { + return; + } + + if (! gtk_widget_get_visible(b->parent->widget)) { + return; + } + + cr = gdk_cairo_create(gtk_widget_get_window(b->parent->gtkwin)); + cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); + cairo_set_operator(cr, CAIRO_OPERATOR_XOR); + cairo_set_line_width(cr, GTKCONTROLHILITEWIDTH); + cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER); + cairo_rectangle(cr, + b->realX - GTKCONTROLHILITEWIDTH, + b->realY - off, + b->w + GTKCONTROLHILITEWIDTH, + b->h + off + 1); + cairo_stroke(cr); + cairo_destroy(cr); +} |