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Internal: Removed GetNextItemWidth(), relying on ItemAdd or NextItemData.ClearFlags() to clear the width data. Amend 5078fa20 and undo some of its effects of imgui_widgets.cpp

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This commit is contained in:
omar
2019-05-13 15:29:00 +02:00
parent 632469d2e5
commit 64dbd932d2
3 changed files with 35 additions and 42 deletions
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34
imgui.cpp
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@@ -5803,14 +5803,17 @@ void ImGui::SetNextItemWidth(float item_width)
void ImGui::PushItemWidth(float item_width)
{
ImGuiWindow* window = GetCurrentWindow();
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
window->DC.ItemWidth = (item_width == 0.0f ? window->ItemWidthDefault : item_width);
window->DC.ItemWidthStack.push_back(window->DC.ItemWidth);
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}
void ImGui::PushMultiItemsWidths(int components, float w_full)
{
ImGuiWindow* window = GetCurrentWindow();
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImGuiStyle& style = GImGui->Style;
const float w_item_one = ImMax(1.0f, (float)(int)((w_full - (style.ItemInnerSpacing.x) * (components-1)) / (float)components));
const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one + style.ItemInnerSpacing.x) * (components-1)));
@@ -5818,6 +5821,7 @@ void ImGui::PushMultiItemsWidths(int components, float w_full)
for (int i = 0; i < components-1; i++)
window->DC.ItemWidthStack.push_back(w_item_one);
window->DC.ItemWidth = window->DC.ItemWidthStack.back();
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}
void ImGui::PopItemWidth()
@@ -5827,22 +5831,17 @@ void ImGui::PopItemWidth()
window->DC.ItemWidth = window->DC.ItemWidthStack.empty() ? window->ItemWidthDefault : window->DC.ItemWidthStack.back();
}
// Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth(),
// Then _consume_ the SetNextItemWidth() data.
float ImGui::GetNextItemWidth()
// Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth().
// The SetNextItemWidth() data is generally cleared/consumed by ItemAdd() or NextItemData.ClearFlags()
float ImGui::CalcItemWidth()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
float w;
if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasWidth)
{
w = g.NextItemData.Width;
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}
else
{
w = window->DC.ItemWidth;
}
if (w < 0.0f)
{
float region_max_x = GetWorkRectMax().x;
@@ -5852,21 +5851,10 @@ float ImGui::GetNextItemWidth()
return w;
}
// Calculate item width *without* popping/consuming NextItemWidth if it was set.
// (rarely used, which is why we avoid calling this from GetNextItemWidth() and instead do a backup/restore here)
float ImGui::CalcItemWidth()
{
ImGuiContext& g = *GImGui;
ImGuiNextItemDataFlags backup_flags = g.NextItemData.Flags;
float w = GetNextItemWidth();
g.NextItemData.Flags = backup_flags;
return w;
}
// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == GetNextItemWidth().
// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth().
// Those two functions CalcItemWidth vs CalcItemSize are awkwardly named because they are not fully symmetrical.
// Note that only CalcItemWidth() is publicly exposed.
// The 4.0f here may be changed to match GetNextItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
// The 4.0f here may be changed to match CalcItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
ImVec2 ImGui::CalcItemSize(ImVec2 size, float default_w, float default_h)
{
ImGuiWindow* window = GImGui->CurrentWindow;

1
imgui_internal.h
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@@ -1475,7 +1475,6 @@ namespace ImGui
IMGUI_API bool IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged);
IMGUI_API bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id); // Return true if focus is requested
IMGUI_API void FocusableItemUnregister(ImGuiWindow* window);
IMGUI_API float GetNextItemWidth();
IMGUI_API ImVec2 CalcItemSize(ImVec2 size, float default_w, float default_h);
IMGUI_API float CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x);
IMGUI_API void PushMultiItemsWidths(int components, float width_full);

42
imgui_widgets.cpp
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@@ -320,7 +320,7 @@ void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const float w = GetNextItemWidth();
const float w = CalcItemWidth();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect value_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2));
@@ -1091,7 +1091,7 @@ void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* over
const ImGuiStyle& style = g.Style;
ImVec2 pos = window->DC.CursorPos;
ImVec2 size = CalcItemSize(size_arg, GetNextItemWidth(), g.FontSize + style.FramePadding.y*2.0f);
ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), g.FontSize + style.FramePadding.y*2.0f);
ImRect bb(pos, pos + size);
ItemSize(size, style.FramePadding.y);
if (!ItemAdd(bb, 0))
@@ -1364,7 +1364,7 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
const float arrow_size = (flags & ImGuiComboFlags_NoArrowButton) ? 0.0f : GetFrameHeight();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const float expected_w = GetNextItemWidth();
const float expected_w = CalcItemWidth();
const float w = (flags & ImGuiComboFlags_NoPreview) ? arrow_size : expected_w;
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2.0f));
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
@@ -1991,8 +1991,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = GetNextItemWidth();
const float w = CalcItemWidth();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2.0f));
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
@@ -2064,7 +2063,7 @@ bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* v, int
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, GetNextItemWidth());
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
@@ -2111,7 +2110,7 @@ bool ImGui::DragFloatRange2(const char* label, float* v_current_min, float* v_cu
ImGuiContext& g = *GImGui;
PushID(label);
BeginGroup();
PushMultiItemsWidths(2, GetNextItemWidth());
PushMultiItemsWidths(2, CalcItemWidth());
bool value_changed = DragFloat("##min", v_current_min, v_speed, (v_min >= v_max) ? -FLT_MAX : v_min, (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max), format, power);
PopItemWidth();
@@ -2156,7 +2155,7 @@ bool ImGui::DragIntRange2(const char* label, int* v_current_min, int* v_current_
ImGuiContext& g = *GImGui;
PushID(label);
BeginGroup();
PushMultiItemsWidths(2, GetNextItemWidth());
PushMultiItemsWidths(2, CalcItemWidth());
bool value_changed = DragInt("##min", v_current_min, v_speed, (v_min >= v_max) ? INT_MIN : v_min, (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max), format);
PopItemWidth();
@@ -2434,7 +2433,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = GetNextItemWidth();
const float w = CalcItemWidth();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2.0f));
@@ -2512,7 +2511,7 @@ bool ImGui::SliderScalarN(const char* label, ImGuiDataType data_type, void* v, i
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, GetNextItemWidth());
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
@@ -2800,7 +2799,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
BeginGroup(); // The only purpose of the group here is to allow the caller to query item data e.g. IsItemActive()
PushID(label);
SetNextItemWidth(ImMax(1.0f, GetNextItemWidth() - (button_size + style.ItemInnerSpacing.x) * 2));
SetNextItemWidth(ImMax(1.0f, CalcItemWidth() - (button_size + style.ItemInnerSpacing.x) * 2));
if (InputText("", buf, IM_ARRAYSIZE(buf), flags)) // PushId(label) + "" gives us the expected ID from outside point of view
value_changed = DataTypeApplyOpFromText(buf, g.InputTextState.InitialTextA.Data, data_type, data_ptr, format);
@@ -2848,7 +2847,7 @@ bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* v, in
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, GetNextItemWidth());
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
@@ -3298,7 +3297,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
BeginGroup();
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
ImVec2 size = CalcItemSize(size_arg, GetNextItemWidth(), (is_multiline ? GetTextLineHeight() * 8.0f : label_size.y) + style.FramePadding.y*2.0f); // Arbitrary default of 8 lines high for multi-line
ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), (is_multiline ? GetTextLineHeight() * 8.0f : label_size.y) + style.FramePadding.y*2.0f); // Arbitrary default of 8 lines high for multi-line
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size);
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? (style.ItemInnerSpacing.x + label_size.x) : 0.0f, 0.0f));
@@ -4056,8 +4055,9 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
const ImGuiStyle& style = g.Style;
const float square_sz = GetFrameHeight();
const float w_extra = (flags & ImGuiColorEditFlags_NoSmallPreview) ? 0.0f : (square_sz + style.ItemInnerSpacing.x);
const float w_items_all = GetNextItemWidth() - w_extra;
const float w_items_all = CalcItemWidth() - w_extra;
const char* label_display_end = FindRenderedTextEnd(label);
g.NextItemData.ClearFlags();
BeginGroup();
PushID(label);
@@ -4337,6 +4337,9 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
ImGuiStyle& style = g.Style;
ImGuiIO& io = g.IO;
const float width = CalcItemWidth();
g.NextItemData.ClearFlags();
PushID(label);
BeginGroup();
@@ -4363,7 +4366,7 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
ImVec2 picker_pos = window->DC.CursorPos;
float square_sz = GetFrameHeight();
float bars_width = square_sz; // Arbitrary smallish width of Hue/Alpha picking bars
float sv_picker_size = ImMax(bars_width * 1, GetNextItemWidth() - (alpha_bar ? 2 : 1) * (bars_width + style.ItemInnerSpacing.x)); // Saturation/Value picking box
float sv_picker_size = ImMax(bars_width * 1, width - (alpha_bar ? 2 : 1) * (bars_width + style.ItemInnerSpacing.x)); // Saturation/Value picking box
float bar0_pos_x = picker_pos.x + sv_picker_size + style.ItemInnerSpacing.x;
float bar1_pos_x = bar0_pos_x + bars_width + style.ItemInnerSpacing.x;
float bars_triangles_half_sz = (float)(int)(bars_width * 0.20f);
@@ -5255,6 +5258,7 @@ float ImGui::GetTreeNodeToLabelSpacing()
return g.FontSize + (g.Style.FramePadding.x * 2.0f);
}
// Set next TreeNode/CollapsingHeader open state.
void ImGui::SetNextItemOpen(bool is_open, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
@@ -5452,20 +5456,22 @@ bool ImGui::Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags
// Tip: To have a list filling the entire window width, PushItemWidth(-1) and pass an non-visible label e.g. "##empty"
bool ImGui::ListBoxHeader(const char* label, const ImVec2& size_arg)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const ImGuiStyle& style = GetStyle();
const ImGuiStyle& style = g.Style;
const ImGuiID id = GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
// Size default to hold ~7 items. Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar.
ImVec2 size = CalcItemSize(size_arg, GetNextItemWidth(), GetTextLineHeightWithSpacing() * 7.4f + style.ItemSpacing.y);
ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), GetTextLineHeightWithSpacing() * 7.4f + style.ItemSpacing.y);
ImVec2 frame_size = ImVec2(size.x, ImMax(size.y, label_size.y));
ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
window->DC.LastItemRect = bb; // Forward storage for ListBoxFooter.. dodgy.
g.NextItemData.ClearFlags();
if (!IsRectVisible(bb.Min, bb.Max))
{
@@ -5578,7 +5584,7 @@ void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_ge
const ImVec2 label_size = CalcTextSize(label, NULL, true);
if (frame_size.x == 0.0f)
frame_size.x = GetNextItemWidth();
frame_size.x = CalcItemWidth();
if (frame_size.y == 0.0f)
frame_size.y = label_size.y + (style.FramePadding.y * 2);