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Fix touchpad scrolling on Linux.

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This commit is contained in:
Rudolf Polzer
2013-12-10 06:54:15 +01:00
parent 214d4c94ce
commit dc9f838f57
1 changed files with 15 additions and 4 deletions
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19
libs/gtkutil/cursor.h
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@@ -114,7 +114,7 @@ void motion_delta( int x, int y, unsigned int state ){
class FreezePointer
{
unsigned int handle_motion;
int recorded_x, recorded_y;
int recorded_x, recorded_y, last_x, last_y;
typedef void ( *MotionDeltaFunction )( int x, int y, unsigned int state, void* data );
MotionDeltaFunction m_function;
void* m_data;
@@ -124,11 +124,19 @@ FreezePointer() : handle_motion( 0 ), m_function( 0 ), m_data( 0 ){
static gboolean motion_delta( GtkWidget *widget, GdkEventMotion *event, FreezePointer* self ){
int current_x, current_y;
Sys_GetCursorPos( GTK_WINDOW( widget ), &current_x, &current_y );
int dx = current_x - self->recorded_x;
int dy = current_y - self->recorded_y;
int dx = current_x - self->last_x;
int dy = current_y - self->last_y;
int ddx = current_x - self->recorded_x;
int ddy = current_y - self->recorded_y;
self->last_x = current_x;
self->last_y = current_y;
if ( dx != 0 || dy != 0 ) {
//globalOutputStream() << "motion x: " << dx << ", y: " << dy << "\n";
Sys_SetCursorPos( GTK_WINDOW( widget ), self->recorded_x, self->recorded_y );
if (ddx < -32 || ddx > 32 || ddy < -32 || ddy > 32) {
Sys_SetCursorPos( GTK_WINDOW( widget ), self->recorded_x, self->recorded_y );
self->last_x = self->recorded_x;
self->last_y = self->recorded_y;
}
self->m_function( dx, dy, event->state, self->m_data );
}
return FALSE;
@@ -156,6 +164,9 @@ void freeze_pointer( GtkWindow* window, MotionDeltaFunction function, void* data
Sys_SetCursorPos( window, recorded_x, recorded_y );
last_x = recorded_x;
last_y = recorded_y;
m_function = function;
m_data = data;