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Improved UI media player (info media)

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Bruno
2021-05-22 01:34:19 +02:00
parent 74a9b229d0
commit 7f152077e5
2 changed files with 102 additions and 103 deletions
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37
ImGuiToolkit.cpp
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@@ -737,6 +737,28 @@ bool ImGuiToolkit::EditPlotLines(const char* label, float *array, int values_cou
return array_changed;
}
// Function to create Gaussian filter
void FilterCreation(float GKernel[], int N)
{
// intialising standard deviation to 1.0
float sigma = N * 0.25f;
float s = 2.0 * sigma * sigma;
// sum is for normalization
float max = 0.0;
// generating 5x5 kernel
for (int x = 0 ; x < N; x++) {
float r = x;
GKernel[x] = (exp(-(r * r) / s)) / sqrt(M_PI * 2.0 * sigma);
max = MAX(max, GKernel[x]);
}
// normalising the Kernel
for (int i = 0; i < N; ++i)
GKernel[i] /= max;
}
bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array, float *lines_array,
int values_count, float values_min, float values_max, bool edit_histogram, bool *released, const ImVec2 size)
{
@@ -761,7 +783,6 @@ bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array,
if (!ImGui::ItemAdd(bbox, id))
return false;
*released = false;
// read user input and activate widget
@@ -807,6 +828,9 @@ bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array,
if (previous_index == UINT32_MAX)
previous_index = index;
const uint left = MIN(previous_index, index);
const uint right = MAX(previous_index, index);
if (edit_histogram){
static float target_value = values_min;
@@ -816,12 +840,15 @@ bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array,
active = true;
}
for (uint i = MIN(previous_index, index); i < MAX(previous_index, index); ++i)
for (uint i = left; i < right; ++i)
histogram_array[i] = target_value;
}
else {
for (uint i = MIN(previous_index, index); i < MAX(previous_index, index); ++i)
lines_array[i] = values_max - y;
const float target_value = values_max - y;
for (uint i = left; i < right; ++i)
lines_array[i] = target_value;
}
previous_index = index;
@@ -858,12 +885,14 @@ bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array,
// draw the cursor bar
if (hovered) {
mouse_pos_in_canvas.x = CLAMP(mouse_pos_in_canvas.x, _h_space, size.x - _h_space);
if (edit_histogram)
window->DrawList->AddLine( canvas_pos + ImVec2(mouse_pos_in_canvas.x, 4.f), canvas_pos + ImVec2(mouse_pos_in_canvas.x, size.y - 4.f), fg_color);
else {
window->DrawList->AddCircle( canvas_pos + mouse_pos_in_canvas, 2.f, fg_color, 6);
}
}
return array_changed;
}