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Manfred Schwarb points out that scroll wheel support stopped working

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with the switch to GTK2. This turns out to be because, where GTK1
represented the scroll wheel as mouse buttons 4 and 5 and generated
GdkEventButton when it was moved, GTK2 has moved wheel actions out
into a new event type GdkEventScroll which we were not handling. Now
we do, so scroll wheel support should be back in place.

[originally from svn r8063]
This commit is contained in:
Simon Tatham 2008-06-10 20:18:23 +00:00
parent 322df43e4d
commit 65ae6ba3d2
1 changed files with 51 additions and 16 deletions
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67
unix/gtkwin.c
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@ -1087,45 +1087,46 @@ gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
return TRUE;
}
gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
gboolean button_internal(struct gui_data *inst, guint32 timestamp,
GdkEventType type, guint ebutton, guint state,
gdouble ex, gdouble ey)
{
struct gui_data *inst = (struct gui_data *)data;
int shift, ctrl, alt, x, y, button, act;
/* Remember the timestamp. */
inst->input_event_time = event->time;
inst->input_event_time = timestamp;
show_mouseptr(inst, 1);
if (event->button == 4 && event->type == GDK_BUTTON_PRESS) {
if (ebutton == 4 && type == GDK_BUTTON_PRESS) {
term_scroll(inst->term, 0, -5);
return TRUE;
}
if (event->button == 5 && event->type == GDK_BUTTON_PRESS) {
if (ebutton == 5 && type == GDK_BUTTON_PRESS) {
term_scroll(inst->term, 0, +5);
return TRUE;
}
shift = event->state & GDK_SHIFT_MASK;
ctrl = event->state & GDK_CONTROL_MASK;
alt = event->state & GDK_MOD1_MASK;
shift = state & GDK_SHIFT_MASK;
ctrl = state & GDK_CONTROL_MASK;
alt = state & GDK_MOD1_MASK;
if (event->button == 3 && ctrl) {
if (ebutton == 3 && ctrl) {
gtk_menu_popup(GTK_MENU(inst->menu), NULL, NULL, NULL, NULL,
event->button, event->time);
ebutton, timestamp);
return TRUE;
}
if (event->button == 1)
if (ebutton == 1)
button = MBT_LEFT;
else if (event->button == 2)
else if (ebutton == 2)
button = MBT_MIDDLE;
else if (event->button == 3)
else if (ebutton == 3)
button = MBT_RIGHT;
else
return FALSE; /* don't even know what button! */
switch (event->type) {
switch (type) {
case GDK_BUTTON_PRESS: act = MA_CLICK; break;
case GDK_BUTTON_RELEASE: act = MA_RELEASE; break;
case GDK_2BUTTON_PRESS: act = MA_2CLK; break;
@ -1137,8 +1138,8 @@ gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
act != MA_CLICK && act != MA_RELEASE)
return TRUE; /* we ignore these in raw mouse mode */
x = (event->x - inst->cfg.window_border) / inst->font_width;
y = (event->y - inst->cfg.window_border) / inst->font_height;
x = (ex - inst->cfg.window_border) / inst->font_width;
y = (ey - inst->cfg.window_border) / inst->font_height;
term_mouse(inst->term, button, translate_button(button), act,
x, y, shift, ctrl, alt);
@ -1146,6 +1147,36 @@ gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
return TRUE;
}
gboolean button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
return button_internal(inst, event->time, event->type, event->button,
event->state, event->x, event->y);
}
#if GTK_CHECK_VERSION(2,0,0)
/*
* In GTK 2, mouse wheel events have become a new type of event.
* This handler translates them back into button-4 and button-5
* presses so that I don't have to change my old code too much :-)
*/
gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
guint button;
if (event->direction == GDK_SCROLL_UP)
button = 4;
else if (event->direction == GDK_SCROLL_DOWN)
button = 5;
else
return FALSE;
return button_internal(inst, event->time, GDK_BUTTON_PRESS,
button, event->state, event->x, event->y);
}
#endif
gint motion_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
@ -3413,6 +3444,10 @@ int pt_main(int argc, char **argv)
GTK_SIGNAL_FUNC(button_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "button_release_event",
GTK_SIGNAL_FUNC(button_event), inst);
#if GTK_CHECK_VERSION(2,0,0)
gtk_signal_connect(GTK_OBJECT(inst->area), "scroll_event",
GTK_SIGNAL_FUNC(scroll_event), inst);
#endif
gtk_signal_connect(GTK_OBJECT(inst->area), "motion_notify_event",
GTK_SIGNAL_FUNC(motion_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "selection_received",