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Plot: Register an ID to take the click the same way as other framed widgets. Set HoveredId in the FramePadding zone (between inner_bb and frame_bb).

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This commit is contained in:
omar 2019-02-05 18:59:42 +01:00
parent cef4e086ba
commit 97ed97b8ce
2 changed files with 11 additions and 10 deletions
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2
imgui_internal.h
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@ -1493,7 +1493,7 @@ namespace ImGui
IMGUI_API void ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags); IMGUI_API void ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags);
// Plot // Plot
IMGUI_API void PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size); IMGUI_API void PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size);
// Shade functions (write over already created vertices) // Shade functions (write over already created vertices)
IMGUI_API void ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1); IMGUI_API void ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1);

19
imgui_widgets.cpp
View File

@ -5214,7 +5214,7 @@ bool ImGui::ListBox(const char* label, int* current_item, bool (*items_getter)(v
// - PlotHistogram() // - PlotHistogram()
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size) void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size)
{ {
ImGuiWindow* window = GetCurrentWindow(); ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems) if (window->SkipItems)
@ -5222,20 +5222,21 @@ void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_ge
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style; const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImVec2 label_size = CalcTextSize(label, NULL, true);
if (graph_size.x == 0.0f) if (frame_size.x == 0.0f)
graph_size.x = CalcItemWidth(); frame_size.x = CalcItemWidth();
if (graph_size.y == 0.0f) if (frame_size.y == 0.0f)
graph_size.y = label_size.y + (style.FramePadding.y * 2); frame_size.y = label_size.y + (style.FramePadding.y * 2);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(graph_size.x, graph_size.y)); const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding); const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0)); const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
ItemSize(total_bb, style.FramePadding.y); ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, 0, &frame_bb)) if (!ItemAdd(total_bb, 0, &frame_bb))
return; return;
const bool hovered = ItemHoverable(inner_bb, 0); const bool hovered = ItemHoverable(frame_bb, id);
// Determine scale from values if not specified // Determine scale from values if not specified
if (scale_min == FLT_MAX || scale_max == FLT_MAX) if (scale_min == FLT_MAX || scale_max == FLT_MAX)
@ -5258,12 +5259,12 @@ void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_ge
if (values_count > 0) if (values_count > 0)
{ {
int res_w = ImMin((int)graph_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0); int res_w = ImMin((int)frame_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0); int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
// Tooltip on hover // Tooltip on hover
int v_hovered = -1; int v_hovered = -1;
if (hovered) if (hovered && inner_bb.Contains(g.IO.MousePos))
{ {
const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f); const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
const int v_idx = (int)(t * item_count); const int v_idx = (int)(t * item_count);