Change remote to use GtkButtons

1 files changed, 103 insertions, 332 deletions

diff --git a/rcm-client-receive.c b/rcm-client-receive.c
index 5ae1af3..9c1646d 100644
--- a/rcm-client-receive.c
+++ b/rcm-client-receive.c
@@ -10,6 +10,8 @@
 #include "rcm-client-main.h"
 #include "rcm-client-receive.h"
 
+#include "linux-input-keycodes.h"
+
 #define WINDOW_WIDTH  300
 #define WINDOW_HEIGHT 300
 
@@ -18,242 +20,26 @@ struct remote {
 	GList *header_buttons;
 	guint width;
 	guint height;
-	struct rcbutton *hover;
 	bool editing;
 };
 	
 struct rcbutton {
 	char *name;
-	bool clicked;
-	guint x;
-	guint y;
 	guint row;
 	guint col;
 	guint rows;
 	guint cols;
-	guint width;
-	guint height;
-	guint padding;
-	guint corner_radius;
+	GtkWidget *button;
 	struct rcbutton *next;
-	GdkRGBA *color;
-	void (*on_hover)(struct rcbutton *rcb, GtkWidget *widget, bool hover);
 };
 
 static struct remote *remote = NULL;
 
-static void
-curve_rectangle(cairo_t * cr, gdouble x0, gdouble y0,
-		gdouble width, gdouble height, gdouble radius)
-{
-	gdouble x1, y1;
-
-	if (!width || !height)
-		return;
-
-	x1 = x0 + width;
-	y1 = y0 + height;
-
-	radius = MIN (radius, MIN (width / 2, height / 2));
-
-	cairo_move_to (cr, x0, y0 + radius);
-	cairo_arc (cr, x0 + radius, y0 + radius, radius, M_PI,
-		   3 * M_PI / 2);
-	cairo_line_to (cr, x1 - radius, y0);
-	cairo_arc (cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2,
-		   2 * M_PI);
-	cairo_line_to (cr, x1, y1 - radius);
-	cairo_arc (cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2);
-	cairo_line_to (cr, x0 + radius, y1);
-	cairo_arc (cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI);
-
-	cairo_close_path (cr);
-}
 
 GdkRGBA *remote_background_color;
 GdkRGBA *remote_edit_background_color;
 GdkRGBA *cd;
-GdkRGBA *cre;
 GdkRGBA *cb;
-GdkRGBA cgreen;
-GdkRGBA cred;
-
-static void
-draw_curve_rectangle(cairo_t * cr, struct rcbutton *rcb)
-{
-	double tx, ty;
-	cairo_text_extents_t extents;
-	const char *label = rcb->name ? rcb->name : "?";
-
-	curve_rectangle(cr, rcb->x, rcb->y,
-			rcb->width, rcb->height, rcb->corner_radius);
-
-	if (rcb->color)
-		gdk_cairo_set_source_rgba(cr, rcb->color);
-	else
-		gdk_cairo_set_source_rgba(cr, rcb->clicked ? cre : cd);
-
-	cairo_fill_preserve(cr);
-
-	gdk_cairo_set_source_rgba(cr, cb);
-	cairo_set_line_width(cr, 1.0);
-	cairo_stroke(cr);
-	/*
-	if (filled)
-		cairo_fill(cr);
-	else {
-		cairo_set_line_width(cr, 1.0);
-		cairo_stroke(cr);
-	}
-	*/
-
-	cairo_save(cr);
-	cairo_rectangle(cr,
-			rcb->x + rcb->padding,
-			rcb->y + rcb->padding,
-			rcb->width - rcb->padding * 2,
-			rcb->height - rcb->padding * 2);
-	cairo_clip(cr);
-	cairo_set_font_size(cr, 13);
-	cairo_text_extents (cr, label, &extents);
-	tx = rcb->x + (rcb->width / 2) - (extents.width / 2 + extents.x_bearing);
-	ty = rcb->y + (rcb->height / 2) - (extents.height / 2 + extents.y_bearing);
-	cairo_set_source_rgb(cr, 0.1, 0.1, 0.1);
-	cairo_move_to(cr, tx, ty);
-	cairo_show_text(cr, label);
-	cairo_restore(cr);
-	cairo_new_sub_path(cr);
-}
-
-#define SPACING 5
-#define PADDING 5
-#define BW 56
-#define BH 56
-
-static gboolean draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
-{ 
-	struct rcbutton *rcb;
-	guint w = 0, h = 0;
-
-	/* Set color for background */
-	gdk_cairo_set_source_rgba(cr, remote->editing ?
-				  remote_edit_background_color :
-				  remote_background_color);
-
-	/* fill in the background color*/
-	cairo_paint(cr);
-
-	GList *l;
-
-	for (l = remote->buttons; l; l = l->next) {
-		rcb = l->data;
-
-		draw_curve_rectangle(cr, rcb);
-
-		if (rcb->x + rcb->width > w)
-			w = rcb->x + rcb->width;
-
-		if (rcb->y + rcb->height > h)
-			h = rcb->y + rcb->height;
-	}
-
-	w += (SPACING + BW) / 2;
-	h += (SPACING + BH) / 2;
-	
-	/*->name ? rcb->name : "?", false,
-				     rcb->clicked ? cre : cd,
-				     rcb->x, rcb->y, rcb->width, rcb->height,
-				     rcb->padding, rcb->corner_radius);
-*/
-	gtk_widget_set_size_request(widget, w, h);
-	gtk_widget_set_halign(widget, GTK_ALIGN_CENTER);
-	gtk_widget_set_valign(widget, GTK_ALIGN_CENTER);
-	gtk_widget_set_margin_top(widget, BH / 2);
-	gtk_widget_set_margin_bottom(widget, BH / 2);
-	gtk_widget_set_margin_start(widget, BW / 2);
-	gtk_widget_set_margin_end(widget, BW / 2);
-
-
-	return FALSE;
-}
-
-#if 0
-static struct rcbutton *new_button(const char *name, guint row, guint col)
-{
-	struct rcbutton *rcb;
-
-	rcb = g_malloc(sizeof(*rcb));
-	rcb->name = strdup(name);
-	rcb->clicked = false;
-	rcb->x = (SPACING + BW) * (col) + (SPACING + BW) / 2;
-	rcb->y = (SPACING + BH) * (row) + (SPACING + BH) / 2;
-	rcb->width = BW;
-	rcb->height = BH;
-	rcb->padding = PADDING;
-	rcb->corner_radius = 3;
-	rcb->color = NULL;
-	return rcb;	
-}
-#endif
-
-static void
-button_calculate_position(struct rcbutton *rcb)
-{
-	rcb->x = (SPACING + BW) * (rcb->col) + (SPACING + BW) / 2;
-	rcb->y = (SPACING + BH) * (rcb->row) + (SPACING + BH) / 2;
-	rcb->width = BW + (rcb->cols - 1) * (BW + SPACING);
-	rcb->height = BH + (rcb->rows - 1) * (BH + SPACING);
-}
-
-static struct rcbutton *
-new_button_add(const char *name, GdkRGBA *color,
-	       guint x, guint y, guint w, guint h)
-{
-	struct rcbutton *rcb;
-
-	rcb = g_malloc0(sizeof(*rcb));
-	rcb->name = strdup(name);
-	rcb->clicked = false;
-	rcb->col = x;
-	rcb->row = y;
-	rcb->cols = w;
-	rcb->rows = h;
-	button_calculate_position(rcb);
-	rcb->padding = PADDING;
-	rcb->corner_radius = 3;
-	rcb->color = color;
-	remote->buttons = g_list_append(remote->buttons, rcb);
-	remote->width = MAX(remote->width, w);
-	remote->height = MAX(remote->height, h);
-	return rcb;
-}
-
-#if 0
-static struct rcbutton *new_button_addr(const char *name, guint row, guint col)
-{
-	struct rcbutton *rcb;
-
-	rcb = g_malloc(sizeof(*rcb));
-	rcb->name = strdup(name);
-	rcb->clicked = false;
-	rcb->x = (SPACING + BW) / 2;
-	rcb->y = (SPACING + BH) / 2;
-	rcb->width = (SPACING + BW) * (col) - SPACING;
-	rcb->height = BH;
-	rcb->padding = PADDING;
-	rcb->corner_radius = 3;
-	rcb->color = &cred;
-	return rcb;	
-}
-#endif
-static void
-button_redraw(struct rcbutton *rcb, GtkWidget *widget)
-{
-	printf("Asked to redraw: X,Y,W,H - %u,%u,%u,%u\n",
-	       rcb->x - 1, rcb->y - 1, rcb->width + 2, rcb->height + 2);
-	gtk_widget_queue_draw_area(widget, rcb->x - 1, rcb->y - 1,
-				   rcb->width + 2, rcb->height + 2);
-}
 
 static void
 quick_message(GtkWindow *parent, gchar *message)
@@ -271,110 +57,103 @@ quick_message(GtkWindow *parent, gchar *message)
 	gtk_container_add(GTK_CONTAINER(content_area), label);
 	gtk_widget_show_all(dialog);
 }
-          
-static gboolean
-button_press_event_cb(GtkWidget      *widget,
-		      GdkEventButton *event,
-		      gpointer        data)
-{
-	struct rcbutton *rcb;
-	GList *l;
-
-	if (event->button != GDK_BUTTON_PRIMARY)
-		return true;
 
-	for (l = remote->buttons; l; l = l->next) {
-		rcb = l->data;
-
-		if (event->x < rcb->x || event->x > (rcb->x + rcb->width))
-			continue;
+static void
+button_press_event_cb(GtkButton *button, gpointer user_data)
+{
+	struct rcbutton *rcb = user_data;
 
-		if (event->y < rcb->y || event->y > (rcb->y + rcb->height))
-			continue;
+	if (GTK_BUTTON(rcb->button) != button)
+		return;
 
-		if (remote->editing) {
-			printf("Button at %ux%u clicked in edit mode\n", rcb->x, rcb->y);
-			quick_message(GTK_WINDOW(gtk_widget_get_toplevel(widget)), "Edit button pressed");
-		} else {
-			rcb->clicked = true;
-			button_redraw(rcb, widget);
-			printf("Button at %ux%u clicked\n", rcb->x, rcb->y);
-			poke_objects();
-		}
+	if (remote->editing) {
+		printf("Button at %ux%u clicked in edit mode\n", rcb->col, rcb->row);
+		quick_message(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(button))), "Edit button pressed");
+	} else {
+		printf("Button at %ux%u clicked\n", rcb->col, rcb->row);
+		poke_objects();
 	}
-
-	return true;
 }
 
-static gboolean
-button_release_event_cb(GtkWidget      *widget,
-			GdkEventButton *event,
-			gpointer        data)
-{
-	struct rcbutton *rcb;
-	GList *l;
-
-	if (event->button != GDK_BUTTON_PRIMARY)
-		return true;
+#define REMOTE_BUTTON_WIDTH 64
+#define REMOTE_BUTTON_HEIGHT 64
+#define REMOTE_BUTTON_PADDING 2
+#define REMOTE_BUTTON_FONT_SIZE 15
 
-	for (l = remote->buttons; l; l = l->next) {
-		rcb = l->data;
+static GtkWidget *
+create_button(const char *keycode)
+{
+	struct linux_input_keycode *lik;
+	cairo_surface_t *surface;
+	cairo_t *ct;
+	GtkWidget *button;
+	cairo_text_extents_t text_extents;
+	cairo_font_extents_t font_extents;
+	GtkWidget *img;
+	const char *label = keycode;
+	double x, y;
+	double scale_x, scale_y;
+	double scale = 1.0;
+
+	for (lik = &linux_input_keycodes[0]; lik->name; lik++)
+		if (keycode && !strcmp(lik->name, keycode))
+			break;
+
+	if (!lik->name) {
+		printf("Unknown keycode! %s\n", keycode);
+		label = "<?>";
+	}
 
-		if (!rcb->clicked)
-			continue;
+	if (lik->cs)
+		goto out;
 
-		rcb->clicked = false;
+	surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
+					     REMOTE_BUTTON_WIDTH,
+					     REMOTE_BUTTON_HEIGHT);
+	ct = cairo_create(surface);
+	cairo_set_font_size(ct, REMOTE_BUTTON_FONT_SIZE);
+	cairo_text_extents(ct, label, &text_extents);
+	/* font extents so the vertial alignment is the same for all buttons */
+	cairo_font_extents(ct, &font_extents);
+	scale_x = (REMOTE_BUTTON_WIDTH  - REMOTE_BUTTON_PADDING * 2) / text_extents.width;
+	scale_y = (REMOTE_BUTTON_HEIGHT - REMOTE_BUTTON_PADDING * 2) / font_extents.height;
+	scale = scale_x < scale ? scale_x : scale;
+	scale = scale_y < scale ? scale_y : scale;
+	x = REMOTE_BUTTON_WIDTH  / 2 - (text_extents.x_bearing + text_extents.width / 2.0) * scale;
+	y = REMOTE_BUTTON_HEIGHT / 2 - (font_extents.descent - font_extents.height / 2.0) * scale;
+	cairo_move_to(ct, x, y);
+	cairo_scale(ct, scale, scale);
+	cairo_set_source_rgb(ct, 0.1, 0.1, 0.1);
+	cairo_show_text(ct, label);
+
+	cairo_destroy(ct);
+	lik->cs = surface;
 
-		button_redraw(rcb, widget);
-	}
+out:
+	img = gtk_image_new_from_surface(lik->cs);
+	button = gtk_button_new();
+	gtk_button_set_image(GTK_BUTTON(button), img);
 
-	return true;
+	return button;
 }
 
-static gboolean
-motion_notify_event_cb(GtkWidget      *widget,
-		       GdkEventMotion *event,
-		       gpointer        data)
+static struct rcbutton *
+new_button_add(GtkGrid *grid, const char *name, GdkRGBA *color,
+	       guint x, guint y, guint w, guint h)
 {
 	struct rcbutton *rcb;
-	static GdkCursor *cursor = NULL;
-	GdkWindow* win = gtk_widget_get_parent_window(widget);
-	GList *l;
-
-	if (!cursor)
-		cursor = gdk_cursor_new_for_display(gdk_window_get_display(win), GDK_HAND1);
-
-	for (l = remote->buttons; l; l = l->next) {
-		rcb = l->data;
-
-		if (event->x < rcb->x || event->x > (rcb->x + rcb->width))
-			continue;
-
-		if (event->y < rcb->y || event->y > (rcb->y + rcb->height))
-			continue;
 
-		break;
-	}
-
-	if (!l)
-		rcb = NULL;
-
-	if (remote->hover == rcb)
-		return true;
-
-	gdk_window_set_cursor(win, rcb ? cursor : NULL);
-
-	if (remote->hover && remote->hover->on_hover) {
-		remote->hover->on_hover(remote->hover, widget, false);
-		remote->hover = NULL;
-	}
-
-	if (rcb && rcb->on_hover) {
-		rcb->on_hover(rcb, widget, true);
-		remote->hover = rcb;
-	}
-
-	return true;
+	rcb = g_malloc0(sizeof(*rcb));
+	rcb->name = strdup(name);
+	rcb->col = x;
+	rcb->row = y;
+	rcb->cols = w;
+	rcb->rows = h;
+	rcb->button = create_button(name);
+	g_signal_connect(rcb->button, "clicked", G_CALLBACK(button_press_event_cb), rcb);
+	remote->buttons = g_list_append(remote->buttons, rcb);
+	gtk_grid_attach(grid, rcb->button, x, y, w, h);
+	return rcb;
 }
 
 static GtkWidget *scrollda = NULL;
@@ -388,7 +167,6 @@ void rcng_client_receive_destroy_ui()
 }
 
 static gint own_page_num = -1;
-static GtkWidget *da;
 
 /* FIXME: These two functions should probably move to the core */
 static void
@@ -492,8 +270,6 @@ set_edit_keymap(bool editing)
 		create_header_button("Resize", "document-page-setup", G_CALLBACK(resize_keymap), &remote);
 	} else
 		create_header_button("Edit", "list-add", G_CALLBACK(toggle_edit_keymap), &remote);
-
-	gtk_widget_queue_draw(da);
 }
 
 static void
@@ -573,24 +349,25 @@ void rcng_client_receive_init_ui(GDBusObject *new_hw)
 	cd->green *= 0.7;
 	cd->blue *= 0.7;
 
-	cre = gdk_rgba_copy(remote_background_color);
-	cre->red *= 2.0;
-
 	cb = gdk_rgba_copy(remote_background_color);
 	cb->red = 0.0;
 	cb->green = 0.0;
 	cb->blue = 0.0;
 	cb->alpha = 1.0;
 
-	gdk_rgba_parse(&cgreen, "#a9b68f");
-	gdk_rgba_parse(&cred, "#cf8989");
-	cred.alpha = 0.8;
-
 	n_items = g_variant_iter_init(&iter, km_entries);
 	g_print("Key items: %zu\n", n_items);
 	guint row = 0;
 	guint col = 0;
 
+	GtkWidget *grid;
+	grid = gtk_grid_new();
+	gtk_grid_set_column_spacing(GTK_GRID(grid), 12);
+	gtk_grid_set_row_spacing(GTK_GRID(grid), 12);
+	gtk_grid_set_column_homogeneous(GTK_GRID(grid), true);
+	gtk_grid_set_row_homogeneous(GTK_GRID(grid), true);
+	gtk_container_set_border_width(GTK_CONTAINER(grid), 12);
+
 	while (g_variant_iter_loop (&iter, "@a{sv}", &item)) {
 		gchar *protocol;
 		guint64 scancode;
@@ -600,7 +377,7 @@ void rcng_client_receive_init_ui(GDBusObject *new_hw)
 		g_variant_lookup(item, "scancode", "t", &scancode);
 		g_variant_lookup(item, "keycode", "s", &keycode);
 
-		new_button_add(keycode, NULL, col, row, 1, 1);
+		new_button_add(GTK_GRID(grid), keycode, NULL, col, row, 1, 1);
 
 		col++;
 		if (col >= km_width) {
@@ -611,25 +388,19 @@ void rcng_client_receive_init_ui(GDBusObject *new_hw)
 		printf("Got a key: %s:0x%08" PRIx64 ":%s\n", protocol, scancode, keycode);
 	}
 
-	da = gtk_drawing_area_new();
-//	gtk_widget_set_size_request (da, WINDOW_WIDTH, WINDOW_HEIGHT);
-	g_signal_connect (da, "draw", G_CALLBACK(draw_cb),  NULL);
-
-	g_signal_connect(da, "button-press-event",
-			 G_CALLBACK (button_press_event_cb), NULL);
-
-	g_signal_connect(da, "button-release-event",
-			 G_CALLBACK (button_release_event_cb), NULL);
-
-	g_signal_connect(da, "motion-notify-event",
-			 G_CALLBACK (motion_notify_event_cb), NULL);
-
-	gtk_widget_set_events (da, gtk_widget_get_events (da)
-			       | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK);
 
 	scrollda = gtk_scrolled_window_new(NULL, NULL);
 
-	gtk_container_add(GTK_CONTAINER(scrollda), da);
+	GtkWidget *frame;
+	frame = gtk_frame_new(NULL);
+	gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_OUT);
+	G_GNUC_BEGIN_IGNORE_DEPRECATIONS
+	gtk_widget_override_background_color(GTK_WIDGET(frame), GTK_STATE_FLAG_NORMAL, cd);
+	G_GNUC_END_IGNORE_DEPRECATIONS
+	gtk_container_set_border_width(GTK_CONTAINER(frame), 12);
+	gtk_container_add(GTK_CONTAINER(frame), grid);
+
+	gtk_container_add(GTK_CONTAINER(scrollda), frame);
 	gtk_widget_show_all(scrollda);
 	own_page_num = gtk_notebook_append_page(global->notebook, scrollda, gtk_label_new("Receive"));
 }