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Player: shoft slider on first frame of MediaPlayer

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Bruno
2021-06-20 18:50:12 +02:00
parent f2ecc88955
commit 79fa6082b0
7 changed files with 29 additions and 28 deletions
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35
ImGuiToolkit.cpp
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@@ -456,7 +456,7 @@ void ImGuiToolkit::HelpIcon(const char* desc, int i, int j, const char* shortcut
#define LARGE_TICK_INCREMENT 1
#define LABEL_TICK_INCREMENT 3
void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, guint64 start, guint64 end, guint64 step, bool verticalflip)
void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, guint64 begin, guint64 end, guint64 step, bool verticalflip)
{
static guint64 optimal_tick_marks[NUM_MARKS + LABEL_TICK_INCREMENT] = { 100 * MILISECOND, 500 * MILISECOND, 1 * SECOND, 2 * SECOND, 5 * SECOND, 10 * SECOND, 20 * SECOND, 1 * MINUTE, 2 * MINUTE, 5 * MINUTE, 10 * MINUTE, 60 * MINUTE, 60 * MINUTE };
@@ -472,7 +472,7 @@ void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, gu
guint64 tick_delta = 0;
// keep duration
const guint64 duration = end - start;
const guint64 duration = end - begin;
// how many pixels to represent one frame step?
const float step_ = static_cast<float> ( static_cast<double>(tick_step) / static_cast<double>(duration) );
@@ -523,7 +523,7 @@ void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, gu
// render tick and text START
ImFormatString(text_buf, IM_ARRAYSIZE(text_buf), "%s",
GstToolkit::time_to_string(start, GstToolkit::TIME_STRING_MINIMAL).c_str());
GstToolkit::time_to_string(begin, GstToolkit::TIME_STRING_MINIMAL).c_str());
ImVec2 beginning_label_size = ImGui::CalcTextSize(text_buf, NULL);
ImVec2 beginning_label_pos = timeline_bbox.GetTL() + ImVec2(3.f, fontsize);
if (verticalflip)
@@ -540,8 +540,8 @@ void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, gu
ImGui::PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_Text] -ImVec4(0.f,0.f,0.f,0.4f));
ImVec2 pos = verticalflip ? timeline_bbox.GetBL() : timeline_bbox.GetTL();
// loop ticks from start to end
guint64 tick = tick_step > 0 ? (start / tick_step) * tick_step : 0;
// loop ticks from begin to end
guint64 tick = tick_step > 0 ? (begin / tick_step) * tick_step : 0;
while ( tick < end )
{
// large tick mark ?
@@ -580,7 +580,7 @@ void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, gu
// next tick
tick += tick_step;
float tick_percent = static_cast<float> ( static_cast<double>(tick-start) / static_cast<double>(duration) );
float tick_percent = static_cast<float> ( static_cast<double>(tick-begin) / static_cast<double>(duration) );
if (verticalflip)
pos = ImLerp(timeline_bbox.GetBL(), timeline_bbox.GetBR(), tick_percent);
else
@@ -591,7 +591,7 @@ void ImGuiToolkit::RenderTimeline (ImGuiWindow* window, ImRect timeline_bbox, gu
}
bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 start, guint64 end, guint64 step, const float width)
bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 begin, guint64 first, guint64 end, guint64 step, const float width)
{
// get window
ImGuiWindow* window = ImGui::GetCurrentWindow();
@@ -628,7 +628,7 @@ bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 star
ImRect slider_bbox( timeline_bbox.GetTL() + ImVec2(-cursor_width + 2.f, cursor_width + 4.f ), timeline_bbox.GetBR() + ImVec2( cursor_width - 2.f, 0.f ) );
// units conversion: from time to float (calculation made with higher precision first)
float time_ = static_cast<float> ( static_cast<double>(*time - start) / static_cast<double>(end - start) );
float time_ = static_cast<float> ( static_cast<double>(*time - begin) / static_cast<double>(end - begin) );
//
// SECOND GET USER INPUT AND PERFORM CHANGES AND DECISIONS
@@ -659,8 +659,9 @@ bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 star
bool value_changed = ImGui::SliderBehavior(slider_bbox, id, ImGuiDataType_Float, &time_slider, &time_zero,
&time_end, "%.2f", 1.f, ImGuiSliderFlags_None, &grab_slider_bb);
if (value_changed){
// g_print("slider %f %ld \n", time_slider, static_cast<guint64> ( static_cast<double>(time_slider) * static_cast<double>(duration) ));
*time = static_cast<guint64> ( 0.1 * static_cast<double>(time_slider) * static_cast<double>(end - start) ) + start;
*time = static_cast<guint64> ( 0.1 * static_cast<double>(time_slider) * static_cast<double>(end - begin) );
if (first != -1)
*time -= first;
grab_slider_color = ImGui::GetColorU32(ImGuiCol_SliderGrabActive);
}
@@ -673,7 +674,7 @@ bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 star
ImGui::RenderFrame(bbox.Min, bbox.Max, frame_col, true, style.FrameRounding);
// render the timeline
RenderTimeline(window, timeline_bbox, start, end, step);
RenderTimeline(window, timeline_bbox, begin, end, step);
// draw slider grab handle
if (grab_slider_bb.Max.x > grab_slider_bb.Min.x) {
@@ -688,7 +689,7 @@ bool ImGuiToolkit::TimelineSlider(const char* label, guint64 *time, guint64 star
}
void ImGuiToolkit::Timeline (const char* label, guint64 time, guint64 start, guint64 end, guint64 step, const float width)
void ImGuiToolkit::Timeline (const char* label, guint64 time, guint64 begin, guint64 end, guint64 step, const float width)
{
// get window
ImGuiWindow* window = ImGui::GetCurrentWindow();
@@ -722,8 +723,8 @@ void ImGuiToolkit::Timeline (const char* label, guint64 time, guint64 start, gui
timeline_bbox.Expand( ImVec2() - style.FramePadding );
// units conversion: from time to float (calculation made with higher precision first)
guint64 duration = end - start;
float time_ = static_cast<float> ( static_cast<double>(time - start) / static_cast<double>(duration) );
guint64 duration = end - begin;
float time_ = static_cast<float> ( static_cast<double>(time - begin) / static_cast<double>(duration) );
//
// THIRD RENDER
@@ -733,7 +734,7 @@ void ImGuiToolkit::Timeline (const char* label, guint64 time, guint64 start, gui
ImGui::RenderFrame(bbox.Min, bbox.Max, ImGui::GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
// render the timeline
RenderTimeline(window, timeline_bbox, start, end, step);
RenderTimeline(window, timeline_bbox, begin, end, step);
// draw the cursor
if ( time_ > -FLT_EPSILON && time_ < 1.f ) {
@@ -884,7 +885,7 @@ bool ImGuiToolkit::EditPlotLines(const char* label, float *array, int values_cou
bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array, float *lines_array,
int values_count, float values_min, float values_max, guint64 start, guint64 end,
int values_count, float values_min, float values_max, guint64 begin, guint64 end,
bool edit_histogram, bool *released, const ImVec2 size)
{
bool array_changed = false;
@@ -936,7 +937,7 @@ bool ImGuiToolkit::EditPlotHistoLines(const char* label, float *histogram_array,
double x = (mouse_pos_in_canvas.x - _h_space) / (size.x - 2.f * _h_space);
size_t index = CLAMP( (int) floor(static_cast<double>(values_count) * x), 0, values_count);
char cursor_text[64];
guint64 time = start + (index * end) / static_cast<guint64>(values_count);
guint64 time = begin + (index * end) / static_cast<guint64>(values_count);
ImFormatString(cursor_text, IM_ARRAYSIZE(cursor_text), "%s",
GstToolkit::time_to_string(time, GstToolkit::TIME_STRING_MINIMAL).c_str());