Work on the printing of the dives, first attempt to print as table.

With this commit, the user can choose between two printing modes:
- pretty print (with or without the dive profile)
- table print (which is nothing less than a table formating containing the
information)

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

3 files changed, 249 insertions, 22 deletions

diff --git a/display-gtk.h b/display-gtk.h
index 85ebae3e2..dd7e2c4a0 100644
--- a/display-gtk.h
+++ b/display-gtk.h
@@ -19,7 +19,6 @@ typedef struct {
 	gboolean nitrox;
 	gboolean sac;
 	gboolean otu;
-    gboolean print_profiles;
 } visible_cols_t;
 
 typedef enum {
diff --git a/display.h b/display.h
index 341b1616c..d054b6994 100644
--- a/display.h
+++ b/display.h
@@ -26,4 +26,9 @@ extern void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_are
 extern void init_profile_background(struct graphics_context *gc);
 extern void attach_tooltip(int x, int y, int w, int h, const char *text);
 
+struct options {
+	enum { PRETTY, TABLE } type;
+	gboolean print_profiles;
+};
+
 #endif
diff --git a/print.c b/print.c
index 5083f42fd..5a1a784b2 100644
--- a/print.c
+++ b/print.c
@@ -11,16 +11,19 @@
 #define FONT_SMALL (FONT_NORMAL / 1.2)
 #define FONT_LARGE (FONT_NORMAL * 1.2)
 
-#define OPTIONCALLBACK(name, option) \
+static struct options print_options;
+
+#define PRETTYOPTIONCALLBACK(name, option) \
 static void name(GtkWidget *w, gpointer data) \
 { \
 	option = GTK_TOGGLE_BUTTON(w)->active; \
 }
 
-OPTIONCALLBACK(print_profiles_toggle, visible_cols.print_profiles)
+PRETTYOPTIONCALLBACK(print_profiles_toggle, print_options.print_profiles)
 
 
-static void set_font(PangoLayout *layout, PangoFontDescription *font, double size, int align)
+static void set_font(PangoLayout *layout, PangoFontDescription *font,
+	double size, int align)
 {
 	pango_font_description_set_size(font, size * PANGO_SCALE);
 	pango_layout_set_font_description(layout, font);
@@ -33,7 +36,8 @@ static void set_font(PangoLayout *layout, PangoFontDescription *font, double siz
  * You know what? Maybe somebody can do a real Pango layout thing.
  * This is hacky.
  */
-static void show_dive_text(struct dive *dive, cairo_t *cr, double w, double h, PangoFontDescription *font)
+static void show_dive_text(struct dive *dive, cairo_t *cr, double w,
+	double h, PangoFontDescription *font)
 {
 	double depth;
 	const char *unit;
@@ -134,7 +138,103 @@ static void show_dive_text(struct dive *dive, cairo_t *cr, double w, double h, P
 	g_object_unref(layout);
 }
 
-static void show_dive_profile(struct dive *dive, cairo_t *cr, double w, double h)
+static void show_table_header(cairo_t *cr, double w, double h,
+    PangoFontDescription *font)
+{
+	int len, width, height, maxwidth, maxheight;
+	PangoLayout *layout;
+	char buffer[160];
+
+	maxwidth = w * PANGO_SCALE;
+	maxheight = h * PANGO_SCALE * 0.9;
+
+	layout = pango_cairo_create_layout(cr);
+	pango_layout_set_width(layout, maxwidth);
+	pango_layout_set_height(layout, maxheight);
+
+	len = snprintf(buffer, sizeof(buffer),
+		"Dive# -  Date              - Depth - Time - Master"
+        " Buddy -- Location");
+
+	set_font(layout, font, FONT_LARGE, PANGO_ALIGN_LEFT);
+	pango_layout_set_text(layout, buffer, len);
+	pango_layout_get_size(layout, &width, &height);
+
+	//cairo_move_to(cr, 0, 0);
+	pango_cairo_show_layout(cr, layout);
+}
+
+static void show_dive_table(struct dive *dive, cairo_t *cr, double w,
+	double h, PangoFontDescription *font)
+{
+	double depth;
+	const char *unit;
+	int len, decimals, width, height, maxwidth, maxheight;
+	PangoLayout *layout;
+	struct tm *tm;
+	char buffer[160], divenr[20];
+
+	maxwidth = w * PANGO_SCALE;
+	maxheight = h * PANGO_SCALE * 0.9;
+
+	layout = pango_cairo_create_layout(cr);
+	pango_layout_set_width(layout, maxwidth);
+	pango_layout_set_height(layout, maxheight);
+
+	*divenr = 0;
+	if (dive->number)
+		snprintf(divenr, sizeof(divenr), "#%d -", dive->number);
+
+	depth = get_depth_units(dive->maxdepth.mm, &decimals, &unit);
+
+	tm = gmtime(&dive->when);
+	len = snprintf(buffer, sizeof(buffer),
+		"%s %s, %s %d, %d   %dh%02d  - %.*f %s - %d min - %s %s --  %s",
+		divenr,
+		weekday(tm->tm_wday),
+		monthname(tm->tm_mon),
+		tm->tm_mday, tm->tm_year + 1900,
+		tm->tm_hour, tm->tm_min,
+		decimals,
+		depth,
+		unit,
+		(dive->duration.seconds+59) / 60,
+		dive->divemaster ? : " ",
+		dive->buddy ? : " ",
+		dive->location ? : " "
+		);
+
+	set_font(layout, font, FONT_NORMAL, PANGO_ALIGN_LEFT);
+	pango_layout_set_text(layout, buffer, len);
+	pango_layout_get_size(layout, &width, &height);
+
+	cairo_move_to(cr, 0, 0);
+	pango_cairo_show_layout(cr, layout);
+
+	///*
+	 //* Show the dive notes
+	 //*/
+	if (dive->notes) {
+		/* Move down by the size of the location (x2) */
+		height = height * 1.3;
+		cairo_translate(cr, 20, height / (double) PANGO_SCALE);
+		maxheight -= height;
+
+		/* Use the full width and remaining height for notes */
+		pango_layout_set_height(layout, maxheight);
+		pango_layout_set_width(layout, maxwidth);
+		pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
+		pango_layout_set_justify(layout, 1);
+		pango_layout_set_text(layout, dive->notes, -1);
+
+		cairo_move_to(cr, 0, 0);
+		pango_cairo_show_layout(cr, layout);
+	}
+	g_object_unref(layout);
+}
+
+static void show_dive_profile(struct dive *dive, cairo_t *cr, double w,
+	double h)
 {
 	cairo_rectangle_int_t drawing_area = { w/20.0, h/20.0, w, h};
 	struct graphics_context gc = {
@@ -146,7 +246,8 @@ static void show_dive_profile(struct dive *dive, cairo_t *cr, double w, double h
 	cairo_restore(cr);
 }
 
-static void print(int divenr, cairo_t *cr, double x, double y, double w, double h, PangoFontDescription *font)
+static void print(int divenr, cairo_t *cr, double x, double y, double w,
+	double h, PangoFontDescription *font)
 {
 	struct dive *dive;
 
@@ -174,7 +275,8 @@ static void print(int divenr, cairo_t *cr, double x, double y, double w, double
 	cairo_restore(cr);
 }
 
-static void print_table(int divenr, cairo_t *cr, double x, double y, double w, double h, PangoFontDescription *font)
+static void print_pretty_table(int divenr, cairo_t *cr, double x, double y,
+	double w, double h, PangoFontDescription *font)
 {
 	struct dive *dive;
 
@@ -196,6 +298,47 @@ static void print_table(int divenr, cairo_t *cr, double x, double y, double w, d
 	cairo_restore(cr);
 }
 
+static void print_table_header(cairo_t *cr, double x, double y,
+	double w, double h, PangoFontDescription *font)
+{
+    cairo_save(cr);
+	cairo_translate(cr, x, y);
+
+	/* Plus 5% on all sides */
+	cairo_translate(cr, w/20, h/20);
+	w *= 0.9; h *= 0.9;
+
+	/* We actually want to scale the text and the lines now */
+	cairo_scale(cr, 0.5, 0.5);
+
+	show_table_header(cr, w*2, h*2, font);
+
+	cairo_restore(cr);
+}
+
+static void print_table(int divenr, cairo_t *cr, double x, double y,
+	double w, double h, PangoFontDescription *font)
+{
+	struct dive *dive;
+
+	dive = get_dive(divenr);
+	if (!dive)
+		return;
+	cairo_save(cr);
+	cairo_translate(cr, x, y);
+
+	/* Plus 5% on all sides */
+	cairo_translate(cr, w/20, h/20);
+	w *= 0.9; h *= 0.9;
+
+	/* We actually want to scale the text and the lines now */
+	cairo_scale(cr, 0.5, 0.5);
+
+	show_dive_table(dive, cr, w*2, h*2, font);
+
+	cairo_restore(cr);
+}
+
 static void draw_page(GtkPrintOperation *operation,
 			GtkPrintContext *context,
 			gint page_nr,
@@ -223,7 +366,7 @@ static void draw_page(GtkPrintOperation *operation,
 	pango_font_description_free(font);
 }
 
-static void draw_page_table(GtkPrintOperation *operation,
+static void draw_pretty_table(GtkPrintOperation *operation,
 			GtkPrintContext *context,
 			gint page_nr,
 			gpointer user_data)
@@ -242,7 +385,34 @@ static void draw_page_table(GtkPrintOperation *operation,
 	nr = page_nr*15;
 	int i;
 	for (i = 0; i < 15; i++) {
-		print_table(nr+i, cr, 0,   0+h*i, w, h, font);
+		print_pretty_table(nr+i, cr, 0,   0+h*i, w, h, font);
+	}
+
+	pango_font_description_free(font);
+}
+
+static void draw_table(GtkPrintOperation *operation,
+			GtkPrintContext *context,
+			gint page_nr,
+			gpointer user_data)
+{
+	int nr;
+	int n_dive_per_page = 25;
+	cairo_t *cr;
+	double w, h;
+	PangoFontDescription *font;
+
+	cr = gtk_print_context_get_cairo_context(context);
+	font = pango_font_description_from_string("Sans");
+
+	w = gtk_print_context_get_width(context);
+	h = gtk_print_context_get_height(context)/(n_dive_per_page+1);
+
+	nr = page_nr*n_dive_per_page;
+    print_table_header(cr, 0, 0+h, w, h, font);
+	int i;
+	for (i = 0; i < n_dive_per_page; i++) {
+		print_table(nr+i, cr, 0,   h*1.5+h*i, w, h, font);
 	}
 
 	pango_font_description_free(font);
@@ -250,43 +420,97 @@ static void draw_page_table(GtkPrintOperation *operation,
 
 static void begin_print(GtkPrintOperation *operation, gpointer user_data)
 {
+	int dives_per_page = 1;
+	if (print_options.type == PRETTY) {
+		if (print_options.print_profiles){
+			dives_per_page = 6;
+		} else {
+			dives_per_page = 15;
+		}
+	} else {
+		dives_per_page = 25;
+	}
 	int pages;
-	if (visible_cols.print_profiles){
-		pages = (dive_table.nr + 5) / 6;
+	pages = (dive_table.nr + dives_per_page - 1) / dives_per_page;
 		gtk_print_operation_set_n_pages(operation, pages);
+}
+
+static void update_print_window(GtkWidget *w) {
+	if (print_options.type == TABLE) {
+		// type == table - disable the profile option
+		gtk_widget_set_sensitive(w, FALSE);
 	} else {
-		pages = (dive_table.nr + 9) / 15;
-		gtk_print_operation_set_n_pages(operation, pages);
+		// type == pretty - enable the profile option
+		gtk_widget_set_sensitive(w, TRUE);
 	}
 }
 
+#define OPTIONCALLBACK(name, type, value) \
+static void name(GtkWidget *w, gpointer data) \
+{\
+	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w))) \
+		print_options.type = value; \
+	update_print_window(data); \
+}
+
+OPTIONCALLBACK(set_pretty, type, PRETTY)
+OPTIONCALLBACK(set_table, type, TABLE)
+
 static GtkWidget *print_dialog(GtkPrintOperation *operation, gpointer user_data)
 {
-	GtkWidget *vbox, *button, *frame, *box;
+	GtkWidget *vbox, *button, *radio1, *radio2, *frame, *box;
 	gtk_print_operation_set_custom_tab_label(operation, "Dive details");
 
 	vbox = gtk_vbox_new(TRUE, 5);
 
+	frame = gtk_frame_new("Print type");
+	gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, FALSE, 1);
+
+	box = gtk_hbox_new(FALSE, 2);
+	gtk_container_add(GTK_CONTAINER(frame), box);
+
+	radio1 = gtk_radio_button_new_with_label (NULL, "Pretty print");
+	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio1),
+		print_options.type == PRETTY);
+	radio2 = gtk_radio_button_new_with_label_from_widget (
+		GTK_RADIO_BUTTON (radio1), "Table print");
+	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio2),
+		print_options.type == TABLE);
+	gtk_box_pack_start (GTK_BOX (box), radio1, TRUE, TRUE, 0);
+	gtk_box_pack_start (GTK_BOX (box), radio2, TRUE, TRUE, 0);
+
+
 	frame = gtk_frame_new("Print options");
 	gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, FALSE, 1);
 
-	box = gtk_hbox_new(FALSE, 1);
+	box = gtk_hbox_new(FALSE, 3);
 	gtk_container_add(GTK_CONTAINER(frame), box);
+
 	button = gtk_check_button_new_with_label("Show profiles");
-	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), visible_cols.print_profiles);
-	gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 6);
+	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), print_options.print_profiles);
+	gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 2);
 	g_signal_connect(G_OBJECT(button), "toggled", G_CALLBACK(print_profiles_toggle), NULL);
 
+	g_signal_connect(radio1, "toggled", G_CALLBACK(set_pretty), button);
+	g_signal_connect(radio2, "toggled", G_CALLBACK(set_table), button);
+
 	gtk_widget_show_all(vbox);
 	return vbox;
 }
 
 static void print_dialog_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
 {
-	if (visible_cols.print_profiles){
-		g_signal_connect(operation, "draw_page", G_CALLBACK(draw_page), NULL);
+	if (print_options.type == PRETTY) {
+		if (print_options.print_profiles){
+			g_signal_connect(operation, "draw_page",
+				G_CALLBACK(draw_page), NULL);
+		} else {
+			g_signal_connect(operation, "draw_page",
+				G_CALLBACK(draw_pretty_table), NULL);
+		}
 	} else {
-		g_signal_connect(operation, "draw_page", G_CALLBACK(draw_page_table), NULL);
+		g_signal_connect(operation, "draw_page",
+			G_CALLBACK(draw_table), NULL);
 	}
 }
 
@@ -294,7 +518,6 @@ static GtkPrintSettings *settings = NULL;
 
 void do_print(void)
 {
-	int pages;
 	GtkPrintOperation *print;
 	GtkPrintOperationResult res;