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Clamping so we don't index outside of the available tracks

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This commit is contained in:
Daniel Collin 2012-10-28 19:47:32 +01:00
parent 638e01e9d5
commit 84746aa8b6
1 changed files with 28 additions and 10 deletions
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38
ogl_editor/src/TrackView.c
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@ -52,7 +52,7 @@ static void renderChannel(struct sync_track* track, int startX, int startY, int
uint x, y;
uint32_t color = Emgui_color32(40, 40, 40, 255);
Emgui_drawBorder(color, color, startX, startY - 20, 128, 600);
Emgui_drawBorder(color, color, startX, startY - 20, 160, 600);
if (track)
Emgui_drawText(track->name, startX + 2, startY + 2, Emgui_color32(0xff, 0xff, 0xff, 0xff));
@ -126,9 +126,20 @@ int doMax(int a, int b)
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static inline int min(int a, int b)
{
if (a < b)
return a;
else
return b;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void TrackView_render(const TrackViewInfo* viewInfo, TrackData* trackData)
{
struct sync_data* syncData = &trackData->syncData;
const int sel_track = trackData->activeTrack;
// TODO: Calculate how many channels we can draw given the width
@ -148,24 +159,31 @@ void TrackView_render(const TrackViewInfo* viewInfo, TrackData* trackData)
int num_tracks = syncData->num_tracks;
if (num_tracks > 4)
num_tracks = 4;
if (num_tracks > 5)
num_tracks = 5;
for (i = 0; i < num_tracks; ++i)
int start_track = 0;
if (sel_track > 3)
start_track = sel_track - 3;
int x_pos = 40;
for (i = start_track; i < min(start_track + num_tracks, syncData->num_tracks - 1); ++i)
{
int x = 40 + (i * 128);
renderChannel(syncData->tracks[i], x, 42,
renderChannel(syncData->tracks[i], x_pos, 42,
(start_pos + viewInfo->rowPos),
(start_pos + viewInfo->rowPos + 40));
if (trackData->activeTrack == i)
if (sel_track == i)
{
Emgui_fill(Emgui_color32(0xff, 0xff, 0x00, 0x80), x, 257, 128, font_size + 2);
Emgui_fill(Emgui_color32(0xff, 0xff, 0x00, 0x80), x_pos, 257, 160, font_size + 2);
if (trackData->editText)
Emgui_drawText(trackData->editText, x, 257, Emgui_color32(255, 255, 255, 255));
Emgui_drawText(trackData->editText, x_pos, 257, Emgui_color32(255, 255, 255, 255));
}
x_pos += 160;
}
uint32_t color = Emgui_color32(127, 127, 127, 56);