A src/launcher/launcher.c

@@ -0,0 +1,268 @@
+/**************************************************************************
+* Tint2 : launcher
+*
+* Copyright (C) 2010       (mrovi@interfete-web-club.com)
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License version 2
+* as published by the Free Software Foundation.
+*
+* 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 <string.h>
+#include <stdio.h>
+#include <cairo.h>
+#include <cairo-xlib.h>
+#include <pango/pangocairo.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+
+#include "window.h"
+#include "server.h"
+#include "area.h"
+#include "panel.h"
+#include "taskbar.h"
+#include "launcher.h"
+
+int launcher_enabled;
+int launcher_max_icon_size;
+
+
+void default_launcher()
+{
+	launcher_enabled = 0;
+	launcher_max_icon_size = 0;
+}
+
+
+void init_launcher()
+{
+}
+
+
+void init_launcher_panel(void *p)
+{
+	Panel *panel =(Panel*)p;
+	Launcher *launcher = &panel->launcher;
+
+	launcher->area.parent = p;
+	launcher->area.panel = p;
+	launcher->area._draw_foreground = draw_launcher;
+	launcher->area._resize = resize_launcher;
+	launcher->area.resize = 1;
+	launcher->area.redraw = 1;
+	launcher->area.on_screen = 1;
+
+	if (panel_horizontal) {
+		// panel horizonal => fixed height and posy
+		launcher->area.posy = panel->area.bg->border.width + panel->area.paddingy;
+		launcher->area.height = panel->area.height - (2 * launcher->area.posy);
+	}
+	else {
+		// panel vertical => fixed width, height, posy and posx
+		launcher->area.posx = panel->area.bg->border.width + panel->area.paddingxlr;
+		launcher->area.width = panel->area.width - (2 * panel->area.bg->border.width) - (2 * panel->area.paddingy);
+	}
+
+	// Load icons
+	{
+		GSList* path = launcher->list_icon_paths;
+		GSList* cmd = launcher->list_cmds;
+		while (path != NULL && cmd != NULL)
+		{
+			LauncherIcon *launcherIcon = malloc(sizeof(LauncherIcon));
+			launcherIcon->icon = imlib_load_image(path->data);
+			launcherIcon->cmd = strdup(cmd->data);
+			launcher->list_icons = g_slist_append(launcher->list_icons, launcherIcon);
+			path = g_slist_next(path);
+			cmd = g_slist_next(cmd);
+		}
+	}
+}
+
+
+void cleanup_launcher()
+{
+	int i;
+
+	for (i = 0 ; i < nb_panel ; i++) {
+		Panel *panel = &panel1[i];
+		Launcher *launcher = &panel->launcher;
+		free_area(&launcher->area);
+		GSList *l;
+		for (l = launcher->list_icons; l ; l = l->next) {
+			LauncherIcon *launcherIcon = (LauncherIcon*)l->data;
+			if (launcherIcon && launcherIcon->icon) {
+				imlib_context_set_image (launcherIcon->icon);
+				imlib_free_image();
+			}
+			free(launcherIcon->cmd);
+			free(launcherIcon);
+		}
+		g_slist_free(launcher->list_icons);
+		for (l = launcher->list_icon_paths; l ; l = l->next) {
+			free(l->data);
+		}
+		g_slist_free(launcher->list_icon_paths);
+		for (l = launcher->list_cmds; l ; l = l->next) {
+			free(l->data);
+		}
+		g_slist_free(launcher->list_cmds);
+	}
+	launcher_enabled = 0;
+}
+
+void resize_launcher(void *obj)
+{
+	Launcher *launcher = obj;
+	Panel *panel = launcher->area.panel;
+	GSList *l;
+	int count, icon_size;
+	int icons_per_column=1, icons_per_row=1, marging=0;
+
+	if (panel_horizontal)
+		icon_size = launcher->area.height;
+	else
+		icon_size = launcher->area.width;
+	icon_size = icon_size - (2 * launcher->area.bg->border.width) - (2 * launcher->area.paddingy);
+	if (launcher_max_icon_size > 0 && icon_size > launcher_max_icon_size)
+		icon_size = launcher_max_icon_size;
+	
+	count = 0;
+	for (l = launcher->list_icons; l ; l = l->next) {
+		count++;
+	}
+
+	if (panel_horizontal) {
+		if (!count) launcher->area.width = 0;
+		else {
+			int height = launcher->area.height - 2*launcher->area.bg->border.width - 2*launcher->area.paddingy;
+			// here icons_per_column always higher than 0
+			icons_per_column = (height+launcher->area.paddingx) / (icon_size+launcher->area.paddingx);
+			marging = height - (icons_per_column-1)*(icon_size+launcher->area.paddingx) - icon_size;
+			icons_per_row = count / icons_per_column + (count%icons_per_column != 0);
+			launcher->area.width = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_row) + ((icons_per_row-1) * launcher->area.paddingx);
+		}
+
+		launcher->area.posx = panel->area.bg->border.width + panel->area.paddingxlr;
+		launcher->area.posy = panel->area.bg->border.width;
+	}
+	else {
+		if (!count) launcher->area.height = 0;
+		else {
+			int width = launcher->area.width - 2*launcher->area.bg->border.width - 2*launcher->area.paddingy;
+			// here icons_per_row always higher than 0
+			icons_per_row = (width+launcher->area.paddingx) / (icon_size+launcher->area.paddingx);
+			marging = width - (icons_per_row-1)*(icon_size+launcher->area.paddingx) - icon_size;
+			icons_per_column = count / icons_per_row+ (count%icons_per_row != 0);
+			launcher->area.height = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_column) + ((icons_per_column-1) * launcher->area.paddingx);
+		}
+
+		launcher->area.posx = panel->area.bg->border.width;
+		launcher->area.posy = panel->area.height - panel->area.bg->border.width - panel->area.paddingxlr - launcher->area.height;
+	}
+
+	int i, posx, posy;
+	int start = launcher->area.bg->border.width + launcher->area.paddingy;// +marging/2;
+	if (panel_horizontal) {
+		posy = start;
+		posx = launcher->area.bg->border.width + launcher->area.paddingxlr;
+	}
+	else {
+		posx = start;
+		posy = launcher->area.bg->border.width + launcher->area.paddingxlr;
+	}
+
+	for (i=1, l = launcher->list_icons; l ; i++, l = l->next) {
+		LauncherIcon *launcherIcon = (LauncherIcon*)l->data;
+		
+		launcherIcon->y = posy;
+		launcherIcon->x = posx;
+		launcherIcon->width = icon_size;
+		launcherIcon->height = icon_size;
+		if (panel_horizontal) {
+			if (i % icons_per_column)
+				posy += icon_size + launcher->area.paddingx;
+			else {
+				posy = start;
+				posx += (icon_size + launcher->area.paddingx);
+			}
+		}
+		else {
+			if (i % icons_per_row)
+				posx += icon_size + launcher->area.paddingx;
+			else {
+				posx = start;
+				posy += (icon_size + launcher->area.paddingx);
+			}
+		}
+	}
+	
+	// resize force the redraw
+	launcher->area.redraw = 1;
+}
+
+
+void draw_launcher(void *obj, cairo_t *c)
+{
+	Launcher *launcher = obj;
+	GSList *l;
+	if (launcher->list_icons == 0) return;
+
+	for (l = launcher->list_icons; l ; l = l->next) {
+		LauncherIcon *launcherIcon = (LauncherIcon*)l->data;
+		int pos_x = launcherIcon->x;
+		int pos_y = launcherIcon->y;
+		int width = launcherIcon->width;
+		int height = launcherIcon->height;
+		Imlib_Image icon_scaled;
+		if (launcherIcon->icon) {
+			imlib_context_set_image (launcherIcon->icon);
+			icon_scaled = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), width, height);
+		} else {
+			icon_scaled = imlib_create_image(width, height);
+			imlib_context_set_image (icon_scaled);
+			imlib_context_set_color(255, 255, 255, 255);
+			imlib_image_fill_rectangle(0, 0, width, height);
+		}
+
+		// Render
+		imlib_context_set_image (icon_scaled);
+		if (server.real_transparency) {
+			render_image(launcher->area.pix, pos_x, pos_y, imlib_image_get_width(), imlib_image_get_height() );
+		}
+		else {
+			imlib_context_set_drawable(launcher->area.pix);
+			imlib_render_image_on_drawable (pos_x, pos_y);
+		}
+		imlib_free_image();
+	}
+}
+
+void launcher_action(LauncherIcon *icon)
+{
+	char *cmd = malloc(strlen(icon->cmd) + 10);
+	sprintf(cmd, "(%s&)", icon->cmd);
+	if (cmd) {
+		pid_t pid;
+		pid = fork();
+		if (pid == 0) {
+			// change for the fork the signal mask
+			//			sigset_t sigset;
+			//			sigprocmask(SIG_SETMASK, &sigset, 0);
+			//			sigprocmask(SIG_UNBLOCK, &sigset, 0);
+			// exec
+			execl("/bin/sh", "/bin/sh", "-c", cmd, NULL);
+			_exit(0);
+		}
+	}
+}
+

A src/launcher/launcher.h

@@ -0,0 +1,44 @@
+/**************************************************************************
+ * Copyright (C) 2010       (mrovi@interfete-web-club.com)
+ *
+ *
+ **************************************************************************/
+
+#ifndef LAUNCHER_H
+#define LAUNCHER_H
+
+#include "common.h"
+#include "area.h"
+
+typedef struct Launcher {
+	// always start with area
+	Area area;
+	GSList *list_icon_paths;
+	GSList *list_cmds;
+	GSList *list_icons;
+} Launcher;
+
+typedef struct LauncherIcon {
+	Imlib_Image icon;
+	char *cmd;
+	int x, y;
+	int width, height;
+} LauncherIcon;
+
+extern int launcher_enabled;
+extern int launcher_max_icon_size;
+
+// default global data
+void default_launcher();
+
+// initialize launcher : y position, precision, ...
+void init_launcher();
+void init_launcher_panel(void *panel);
+void cleanup_launcher();
+
+void resize_launcher(void *obj);
+void draw_launcher (void *obj, cairo_t *c);
+
+void launcher_action(LauncherIcon *icon);
+
+#endif