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eeshow/gui.c: show progress bar on main window

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This commit is contained in:
Werner Almesberger 2016-08-14 13:51:30 -03:00
parent 6345c44dad
commit a3301f95ae
1 changed files with 39 additions and 36 deletions
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71
eeshow/gui.c
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@ -119,7 +119,7 @@ struct gui_ctx {
int hist_y_offset; /* history list y offset */ int hist_y_offset; /* history list y offset */
/* progress bar */ /* progress bar */
unsigned hist_size; /* total number of revisions */ int hist_size; /* total number of revisions */
unsigned progress; /* progress counter */ unsigned progress; /* progress counter */
unsigned progress_scale;/* right-shift by this value */ unsigned progress_scale;/* right-shift by this value */
}; };
@ -1063,8 +1063,9 @@ static bool hover_glabel(void *user, bool on)
static void progress_draw_event(GtkWidget *widget, cairo_t *cr, static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
gpointer user_data) gpointer user_data)
{ {
GtkAllocation alloc;
struct gui_ctx *ctx = user_data; struct gui_ctx *ctx = user_data;
unsigned x; unsigned w, x;
x = ctx->progress >> ctx->progress_scale; x = ctx->progress >> ctx->progress_scale;
if (!x) { if (!x) {
@ -1073,35 +1074,41 @@ static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
cairo_paint(cr); cairo_paint(cr);
} }
gtk_widget_get_allocation(ctx->da, &alloc);
w = ctx->hist_size >> ctx->progress_scale;
cairo_save(cr);
cairo_translate(cr,
(alloc.width - w) / 2, (alloc.height - PROGRESS_BAR_HEIGHT) / 2);
cairo_set_source_rgb(cr, 0, 0.7, 0); cairo_set_source_rgb(cr, 0, 0.7, 0);
cairo_set_line_width(cr, 0); cairo_set_line_width(cr, 0);
cairo_rectangle(cr, 0, 0, x, PROGRESS_BAR_HEIGHT); cairo_rectangle(cr, 0, 0, x, PROGRESS_BAR_HEIGHT);
cairo_fill(cr); cairo_fill(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width(cr, 2);
cairo_rectangle(cr, 0, 0, w, PROGRESS_BAR_HEIGHT);
cairo_stroke(cr);
cairo_restore(cr);
} }
static void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window) static void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window)
{ {
GdkScreen *screen; GtkAllocation alloc;
unsigned w;
screen = gtk_window_get_screen(GTK_WINDOW(window)); gtk_widget_get_allocation(ctx->da, &alloc);
w = gdk_screen_get_width(screen);
ctx->progress_scale = 0; ctx->progress_scale = 0;
while ((ctx->hist_size >> ctx->progress_scale) > w / 2) while ((ctx->hist_size >> ctx->progress_scale) > alloc.width)
ctx->progress_scale++; ctx->progress_scale++;
gtk_window_set_default_size(GTK_WINDOW(window),
ctx->hist_size >> ctx->progress_scale, PROGRESS_BAR_HEIGHT);
ctx->progress = 0; ctx->progress = 0;
g_signal_connect(G_OBJECT(ctx->da), "draw", g_signal_connect(G_OBJECT(ctx->da), "draw",
G_CALLBACK(progress_draw_event), ctx); G_CALLBACK(progress_draw_event), ctx);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_decorated(GTK_WINDOW(window), 0);
gtk_widget_show_all(window);
redraw(ctx); redraw(ctx);
gtk_main_iteration_do(0); gtk_main_iteration_do(0);
} }
@ -1423,13 +1430,27 @@ int gui(unsigned n_args, char **args, bool recurse, int limit)
.hist_size = 0, .hist_size = 0,
}; };
get_history(&ctx, args[n_args - 1], limit);
if (ctx.hist_size) {
window = gtk_window_new(GTK_WINDOW_TOPLEVEL); window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
ctx.da = gtk_drawing_area_new(); ctx.da = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), ctx.da); gtk_container_add(GTK_CONTAINER(window), ctx.da);
gtk_window_set_default_size(GTK_WINDOW(window), 640, 480);
gtk_window_set_title(GTK_WINDOW(window), "eeshow");
gtk_widget_set_can_focus(ctx.da, TRUE);
gtk_widget_set_events(ctx.da,
GDK_EXPOSE | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_KEY_PRESS_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK);
gtk_widget_show_all(window);
get_history(&ctx, args[n_args - 1], limit);
if (ctx.hist_size)
setup_progress_bar(&ctx, window); setup_progress_bar(&ctx, window);
}
get_revisions(&ctx, n_args, args, recurse, limit); get_revisions(&ctx, n_args, args, recurse, limit);
for (ctx.new_hist = ctx.hist; ctx.new_hist && !ctx.new_hist->sheets; for (ctx.new_hist = ctx.hist; ctx.new_hist && !ctx.new_hist->sheets;
@ -1437,13 +1458,6 @@ int gui(unsigned n_args, char **args, bool recurse, int limit)
if (!ctx.new_hist) if (!ctx.new_hist)
fatal("no valid sheets\n"); fatal("no valid sheets\n");
if (ctx.hist_size)
gtk_widget_destroy(window);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
ctx.da = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), ctx.da);
g_signal_connect(G_OBJECT(ctx.da), "draw", g_signal_connect(G_OBJECT(ctx.da), "draw",
G_CALLBACK(on_draw_event), &ctx); G_CALLBACK(on_draw_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "motion_notify_event", g_signal_connect(G_OBJECT(ctx.da), "motion_notify_event",
@ -1462,18 +1476,7 @@ int gui(unsigned n_args, char **args, bool recurse, int limit)
g_signal_connect(window, "destroy", g_signal_connect(window, "destroy",
G_CALLBACK(gtk_main_quit), NULL); G_CALLBACK(gtk_main_quit), NULL);
gtk_widget_set_can_focus(ctx.da, TRUE);
gtk_widget_set_events(ctx.da,
GDK_EXPOSE | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_KEY_PRESS_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK);
// gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER); // gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 640, 480);
gtk_window_set_title(GTK_WINDOW(window), "eeshow");
go_to_sheet(&ctx, ctx.new_hist->sheets); go_to_sheet(&ctx, ctx.new_hist->sheets);
gtk_widget_show_all(window); gtk_widget_show_all(window);