m/grafX2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Experimental work on mouse locking with shift (issue 193). Consider unstable.

Browse Source 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@921 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-07-15 18:50:25 +00:00
parent c596b80b8d
commit 7fc318a856
3 changed files with 67 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
windows.c
View File

@@ -32,6 +32,7 @@
#include "misc.h"
#include "sdlscreen.h"
#include "errors.h"
#include "input.h"
// L'encapsulation tente une percée...ou un dernier combat.
@@ -1275,6 +1276,46 @@ void Compute_paintbrush_coordinates(void)
Paintbrush_X=(((Paintbrush_X+(Snap_width>>1)-Snap_offset_X)/Snap_width)*Snap_width)+Snap_offset_X;
Paintbrush_Y=(((Paintbrush_Y+(Snap_height>>1)-Snap_offset_Y)/Snap_height)*Snap_height)+Snap_offset_Y;
}
// Handling the snap axis mode, when shift is pressed.
switch (Current_operation)
{
// Operations that don't implement it
case OPERATION_LINE:
Snap_axis=0;
break;
// Operations that implement it
default:
if (Snap_axis==0 && (SDL_GetModState() & KMOD_SHIFT))
{
// Start "Snap axis" mode
Snap_axis=1;
Snap_axis_origin_X=Paintbrush_X;
Snap_axis_origin_Y=Paintbrush_Y;
}
}
if (Snap_axis==1)
{
// Cursor moved
if (Paintbrush_X != Snap_axis_origin_X || Paintbrush_Y != Snap_axis_origin_Y)
{
if ((Paintbrush_X-Snap_axis_origin_X)*(Paintbrush_X-Snap_axis_origin_X) >
(Paintbrush_Y-Snap_axis_origin_Y)*(Paintbrush_Y-Snap_axis_origin_Y))
// Displacement was bigger on X axis: lock Y
Snap_axis=2;
else
Snap_axis=3;
}
}
if (Snap_axis==2)
{
Paintbrush_Y = Snap_axis_origin_Y;
}
else if (Snap_axis==3)
{
Paintbrush_X = Snap_axis_origin_X;
}
}