From af1b3098c28bbf1ce7cf64131c33ac578a01213b Mon Sep 17 00:00:00 2001 From: Krisztian Pifko Date: Wed, 16 Jan 2002 17:26:54 +0000 Subject: new file, implements the ECellProgress object. 2002-01-16 Krisztian Pifko * e-cell-progress.c, e-cell-progress.h: new file, implements the ECellProgress object. * Makefile.am (libetable_la_SOURCES, libetableinclude_HEADERS): added e-cell-progress.c and e-cell-progress.h. svn path=/trunk/; revision=15341 --- widgets/table/e-cell-progress.c | 450 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 450 insertions(+) create mode 100644 widgets/table/e-cell-progress.c (limited to 'widgets/table/e-cell-progress.c') diff --git a/widgets/table/e-cell-progress.c b/widgets/table/e-cell-progress.c new file mode 100644 index 0000000000..41edac7ef3 --- /dev/null +++ b/widgets/table/e-cell-progress.c @@ -0,0 +1,450 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * e-cell-progress.c - Progress display cell object. + * Copyright 1999-2002, Ximian, Inc. + * Copyright 2001, 2002, Krisztian Pifko + * + * Authors: + * Krisztian Pifko + * + * A cell type for displaying progress bars. + * + * Derived from ECellToggle of Miguel de Icaza . + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License, version 2, as published by the Free Software Foundation. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "e-cell-progress.h" +#include "gal/util/e-util.h" +#include "e-table-item.h" + +#define PARENT_TYPE e_cell_get_type () + +typedef struct { + ECellView cell_view; + GdkGC *gc; + GnomeCanvas *canvas; +} ECellProgressView; + +static ECellClass *parent_class; + +static void +eprog_queue_redraw (ECellProgressView *text_view, int view_col, int view_row) +{ + e_table_item_redraw_range ( + text_view->cell_view.e_table_item_view, + view_col, view_row, view_col, view_row); +} + +/* + * ECell::realize method + */ +static ECellView * +eprog_new_view (ECell *ecell, ETableModel *table_model, void *e_table_item_view) +{ + ECellProgressView *progress_view = g_new0 (ECellProgressView, 1); + ETableItem *eti = E_TABLE_ITEM (e_table_item_view); + GnomeCanvas *canvas = GNOME_CANVAS_ITEM (eti)->canvas; + + progress_view->cell_view.ecell = ecell; + progress_view->cell_view.e_table_model = table_model; + progress_view->cell_view.e_table_item_view = e_table_item_view; + progress_view->canvas = canvas; + + return (ECellView *) progress_view; +} + +static void +eprog_kill_view (ECellView *ecell_view) +{ + g_free (ecell_view); +} + +static void +eprog_realize (ECellView *ecell_view) +{ + ECellProgressView *progress_view = (ECellProgressView *) ecell_view; + + progress_view->gc = gdk_gc_new (GTK_WIDGET (progress_view->canvas)->window); +} + +/* + * ECell::unrealize method + */ +static void +eprog_unrealize (ECellView *ecv) +{ + ECellProgressView *progress_view = (ECellProgressView *) ecv; + + gdk_gc_unref (progress_view->gc); + progress_view->gc = NULL; +} + +static void +eprog_clear (ECellProgress *progress) +{ + memset(progress->buffer,0x00,progress->width*progress->height*4); +} + +static void +eprog_draw_border (ECellProgress *progress, guchar red, guchar green, guchar blue) +{ + gint i, j, w4, p4, pw4, wpb4, hp1; + +/* + * some speedup + */ + w4=progress->width*4; + p4=progress->padding*4; + pw4=w4*progress->padding; + wpb4=(progress->width-progress->padding-progress->border)*4; + hp1=(progress->height-progress->padding-1); + + for (i=progress->padding*4;i<(progress->width-progress->padding)*4;i+=4){ + for (j=0;jborder;j++){ + progress->buffer[pw4+j*w4+i]=red; + progress->buffer[pw4+j*w4+i+1]=green; + progress->buffer[pw4+j*w4+i+2]=blue; + progress->buffer[pw4+j*w4+i+3]=255; + progress->buffer[(progress->height-1-progress->padding)*w4-j*w4+i]=red; + progress->buffer[(progress->height-1-progress->padding)*w4-j*w4+i+1]=green; + progress->buffer[(progress->height-1-progress->padding)*w4-j*w4+i+2]=blue; + progress->buffer[(progress->height-1-progress->padding)*w4-j*w4+i+3]=255; + } + } + for (i=progress->padding+progress->border;iheight-progress->padding-progress->border;i++){ + for (j=0;j<4*progress->border;j+=4){ + progress->buffer[p4+i*w4+j]=red; + progress->buffer[p4+i*w4+j+1]=green; + progress->buffer[p4+i*w4+j+2]=blue; + progress->buffer[p4+i*w4+j+3]=255; + progress->buffer[i*w4+wpb4+j]=red; + progress->buffer[i*w4+wpb4+j+1]=green; + progress->buffer[i*w4+wpb4+j+2]=blue; + progress->buffer[i*w4+wpb4+j+3]=255; + } + } +} + +static void +eprog_draw_bar (ECellProgress *progress, guchar red, guchar green, guchar blue, gint value) +{ + gint i, j, w; + + w=value*(progress->width-2*(progress->padding+progress->border+1))/progress->max; + for (i=(progress->padding+progress->border+1)*4;i<(progress->padding+progress->border+1+w)*4;i+=4){ + for (j=0;jheight-2*(progress->padding+progress->border+1);j++){ + progress->buffer[(progress->width*(progress->padding+progress->border+1)*4)+j*progress->width*4+i]=red; + progress->buffer[(progress->width*(progress->padding+progress->border+1)*4)+j*progress->width*4+i+1]=green; + progress->buffer[(progress->width*(progress->padding+progress->border+1)*4)+j*progress->width*4+i+2]=blue; + progress->buffer[(progress->width*(progress->padding+progress->border+1)*4)+j*progress->width*4+i+3]=255; + } + } +} + +/* + * ECell::draw method + */ +static void +eprog_draw (ECellView *ecell_view, GdkDrawable *drawable, + int model_col, int view_col, int row, ECellFlags flags, + int x1, int y1, int x2, int y2) +{ + ECellProgress *progress = E_CELL_PROGRESS (ecell_view->ecell); + gboolean selected; + GdkPixbuf *image; + int x, y, width, height; + + const int value = GPOINTER_TO_INT ( + e_table_model_value_at (ecell_view->e_table_model, model_col, row)); + + selected = flags & E_CELL_SELECTED; + + if ((value > progress->max)||(value < progress->min)){ + g_warning ("Value from the table model is %d, the states we support are [%d..%d]\n", + value, progress->min, progress->max); + return; + } + + image = progress->image; + + if ((x2 - x1) < progress->width){ + x = x1; + width = x2 - x1; + } else { + x = x1 + ((x2 - x1) - progress->width) / 2; + width = progress->width; + } + + if ((y2 - y1) < progress->height){ + y = y1; + height = y2 - y1; + } else { + y = y1 + ((y2 - y1) - progress->height) / 2; + height = progress->height; + } + + eprog_clear(progress); + + eprog_draw_border(progress, progress->red, progress->green, progress->blue); + + eprog_draw_bar(progress, progress->red, progress->green, progress->blue, value); + + gdk_pixbuf_render_to_drawable_alpha (progress->image, drawable, + 0, 0, + x, y, + progress->width, progress->height, + GDK_PIXBUF_ALPHA_BILEVEL, + 128, + GDK_RGB_DITHER_NORMAL, + x, y); +} + +static void +eprog_set_value (ECellProgressView *progress_view, int model_col, int view_col, int row, int value) +{ + ECell *ecell = progress_view->cell_view.ecell; + ECellProgress *progress = E_CELL_PROGRESS (ecell); + + if (value > progress->max){ + value = progress->max; + }else if (value < progress->min){ + value = progress->min; + } + e_table_model_set_value_at (progress_view->cell_view.e_table_model, + model_col, row, GINT_TO_POINTER (value)); + eprog_queue_redraw (progress_view, view_col, row); +} + +/* + * ECell::event method + */ +static gint +eprog_event (ECellView *ecell_view, GdkEvent *event, int model_col, int view_col, int row, ECellFlags flags, ECellActions *actions) +{ + ECellProgressView *progress_view = (ECellProgressView *) ecell_view; + void *_value = e_table_model_value_at (ecell_view->e_table_model, model_col, row); + const int value = GPOINTER_TO_INT (_value); + +#if 0 + if (!(flags & E_CELL_EDITING)) + return FALSE; +#endif + + switch (event->type){ + case GDK_KEY_PRESS: + if (event->key.keyval != GDK_space) + return FALSE; + /* Fall through */ + case GDK_BUTTON_PRESS: + if (!e_table_model_is_cell_editable(ecell_view->e_table_model, model_col, row)) + return FALSE; + + eprog_set_value (progress_view, model_col, view_col, row, value + 1); + return TRUE; + + default: + return FALSE; + } + return TRUE; +} + +/* + * ECell::height method + */ +static int +eprog_height (ECellView *ecell_view, int model_col, int view_col, int row) +{ + ECellProgress *progress = E_CELL_PROGRESS (ecell_view->ecell); + + return progress->height; +} + +/* + * ECell::max_width method + */ +static int +eprog_max_width (ECellView *ecell_view, int model_col, int view_col) +{ + ECellProgress *progress = E_CELL_PROGRESS (ecell_view->ecell); + + return progress->width; +} + +static void +eprog_destroy (GtkObject *object) +{ + ECellProgress *eprog = E_CELL_PROGRESS (object); + + gdk_pixbuf_unref (eprog->image); + g_free (eprog->image); + g_free (eprog->buffer); + + GTK_OBJECT_CLASS (parent_class)->destroy (object); +} + +static void +e_cell_progress_class_init (GtkObjectClass *object_class) +{ + ECellClass *ecc = (ECellClass *) object_class; + + object_class->destroy = eprog_destroy; + + ecc->new_view = eprog_new_view; + ecc->kill_view = eprog_kill_view; + ecc->realize = eprog_realize; + ecc->unrealize = eprog_unrealize; + ecc->draw = eprog_draw; + ecc->event = eprog_event; + ecc->height = eprog_height; + ecc->max_width = eprog_max_width; + + parent_class = gtk_type_class (PARENT_TYPE); +} + +E_MAKE_TYPE(e_cell_progress, "ECellProgress", ECellProgress, e_cell_progress_class_init, NULL, PARENT_TYPE); + +/** + * e_cell_progress_construct: + * @eprog: a fresh ECellProgress object + * @padding: number of pixels used as a padding + * @border: number of pixels used as a border + * @min: the minimum value + * @max: the maximum value + * @width: the width of the progress bar in pixels + * @height: the height of the progress bar in pixels + * @red: the red component of the progress bars rgb color + * @green: the green component of the progress bars rgb color + * @blue: the blue component of the progress bars rgb color + * + * Constructs the @eprog object with the arguments + */ +void +e_cell_progress_construct (ECellProgress *eprog, int padding, int border, int min, int max, int width, int height, guchar red, guchar green, guchar blue) +{ + eprog->padding = padding; + eprog->border = border; + eprog->min = min; + eprog->max = max; + eprog->red = red; + eprog->green = green; + eprog->blue = blue; + + eprog->width = (width<((padding+border)*2+5)) ? ((padding+border)*2+5) : width; + eprog->height = (height<((padding+border)*2+5)) ? ((padding+border)*2+5) : height; + + eprog->buffer=g_new(guchar, eprog->width*eprog->height*4); + + eprog_clear(eprog); + eprog_draw_border(eprog, red, green, blue); + + eprog->image = gdk_pixbuf_new_from_data (eprog->buffer,GDK_COLORSPACE_RGB, TRUE, 8, eprog->width, eprog->height, eprog->width*4, NULL, NULL); +} + +/** + * e_cell_progress_new: + * @min: the minimum value + * @max: the maximum value + * @width: the width of the progress bar in pixels + * @height: the height of the progress bar in pixels + * + * Creates a new ECell renderer that can be used to render progress + * bars displaying the percentage of the current value between min + * and max. + * + * Returns: an ECell object that can be used to render progress cells. + */ +ECell * +e_cell_progress_new (int min, int max, int width, int height) +{ + ECellProgress *eprog = gtk_type_new (e_cell_progress_get_type ()); + + e_cell_progress_construct (eprog, 1, 1, min, max, (width<9) ? 9 : width, (height<9) ? 9 : height, 0x00, 0x00, 0x00); + + return (ECell *) eprog; +} + +/** + * e_cell_progress_set_padding: + * @eprog: an ECellProgress object + * @padding: number of pixels used as a padding + * + * Sets the padding around the progress bar in the cell. + */ +void +e_cell_progress_set_padding (ECellProgress *eprog, int padding) +{ + eprog->padding = padding; + + eprog->width = (eprog->width<((padding+eprog->border)*2+5)) ? ((padding+eprog->border)*2+5) : eprog->width; + eprog->height = (eprog->height<((padding+eprog->border)*2+5)) ? ((padding+eprog->border)*2+5) : eprog->height; + + g_free (eprog->buffer); + eprog->buffer=g_new (guchar, eprog->width*eprog->height*4); + + eprog_clear (eprog); + eprog_draw_border (eprog, eprog->red, eprog->green, eprog->blue); + + eprog->image = gdk_pixbuf_new_from_data (eprog->buffer,GDK_COLORSPACE_RGB, TRUE, 8, eprog->width, eprog->height, eprog->width*4, NULL, NULL); +} + +/** + * e_cell_progress_set_border: + * @eprog: an ECellProgress object + * @border: number of pixels used as a border + * + * Sets the border around the progress bar in the cell. + */ +void +e_cell_progress_set_border (ECellProgress *eprog, int border) +{ + eprog->border = border; + + eprog->width = (eprog->width<((eprog->padding+border)*2+5)) ? ((eprog->padding+border)*2+5) : eprog->width; + eprog->height = (eprog->height<((eprog->padding+border)*2+5)) ? ((eprog->padding+border)*2+5) : eprog->height; + + g_free (eprog->buffer); + eprog->buffer=g_new (guchar, eprog->width*eprog->height*4); + + eprog_clear (eprog); + eprog_draw_border (eprog, eprog->red, eprog->green, eprog->blue); + + eprog->image = gdk_pixbuf_new_from_data (eprog->buffer,GDK_COLORSPACE_RGB, TRUE, 8, eprog->width, eprog->height, eprog->width*4, NULL, NULL); +} + +/** + * e_cell_progress_set_color: + * @eprog: a fresh ECellProgress object + * @red: the red component of the progress bars rgb color + * @green: the green component of the progress bars rgb color + * @blue: the blue component of the progress bars rgb color + */ +void +e_cell_progress_set_color (ECellProgress *eprog, guchar red, guchar green, guchar blue) +{ + eprog->red = red; + eprog->green = green; + eprog->blue = blue; + + eprog_clear (eprog); + eprog_draw_border (eprog, red, green, blue); +} -- cgit v1.2.3