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Added SetNextItemWidth() helper to avoid using PushItemWidth/PopItemWidth() for single items.

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This commit is contained in:
omar
2019-04-18 18:29:28 +02:00
parent 8d53f834ee
commit 5078fa208b
6 changed files with 90 additions and 69 deletions
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49
imgui.cpp
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@ -2068,10 +2068,8 @@ ImGuiTextFilter::ImGuiTextFilter(const char* default_filter)
bool ImGuiTextFilter::Draw(const char* label, float width)
{
if (width != 0.0f)
ImGui::PushItemWidth(width);
ImGui::SetNextItemWidth(width);
bool value_changed = ImGui::InputText(label, InputBuf, IM_ARRAYSIZE(InputBuf));
if (width != 0.0f)
ImGui::PopItemWidth();
if (value_changed)
Build();
return value_changed;
@ -5744,6 +5742,12 @@ void ImGui::FocusPreviousWindowIgnoringOne(ImGuiWindow* ignore_window)
}
}
void ImGui::SetNextItemWidth(float item_width)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.NextItemWidth = item_width;
}
void ImGui::PushItemWidth(float item_width)
{
ImGuiWindow* window = GetCurrentWindow();
@ -5755,8 +5759,6 @@ void ImGui::PushMultiItemsWidths(int components, float w_full)
{
ImGuiWindow* window = GetCurrentWindow();
const ImGuiStyle& style = GImGui->Style;
if (w_full <= 0.0f)
w_full = CalcItemWidth();
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)));
window->DC.ItemWidthStack.push_back(w_item_last);
@ -5772,11 +5774,21 @@ 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()
float ImGui::CalcItemWidth()
// Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth(),
// Then consume the
float ImGui::GetNextItemWidth()
{
ImGuiWindow* window = GImGui->CurrentWindow;
float w = window->DC.ItemWidth;
float w;
if (window->DC.NextItemWidth != FLT_MAX)
{
w = window->DC.NextItemWidth;
window->DC.NextItemWidth = FLT_MAX;
}
else
{
w = window->DC.ItemWidth;
}
if (w < 0.0f)
{
float region_max_x = GetContentRegionMaxScreen().x;
@ -5786,10 +5798,21 @@ float ImGui::CalcItemWidth()
return w;
}
// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth().
// 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()
{
ImGuiWindow* window = GImGui->CurrentWindow;
float backup_next_item_width = window->DC.NextItemWidth;
float w = GetNextItemWidth();
window->DC.NextItemWidth = backup_next_item_width;
return w;
}
// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == GetNextItemWidth().
// 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 CalcItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
// The 4.0f here may be changed to match GetNextItemWidth() 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;
@ -9147,11 +9170,10 @@ void ImGui::LogButtons()
const bool log_to_tty = Button("Log To TTY"); SameLine();
const bool log_to_file = Button("Log To File"); SameLine();
const bool log_to_clipboard = Button("Log To Clipboard"); SameLine();
PushItemWidth(80.0f);
PushAllowKeyboardFocus(false);
SetNextItemWidth(80.0f);
SliderInt("Default Depth", &g.LogDepthToExpandDefault, 0, 9, NULL);
PopAllowKeyboardFocus();
PopItemWidth();
PopID();
// Start logging at the end of the function so that the buttons don't appear in the log
@ -9739,9 +9761,8 @@ void ImGui::ShowMetricsWindow(bool* p_open)
ImGui::Checkbox("Show windows begin order", &show_windows_begin_order);
ImGui::Checkbox("Show windows rectangles", &show_windows_rects);
ImGui::SameLine();
ImGui::PushItemWidth(ImGui::GetFontSize() * 12);
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 12);
show_windows_rects |= ImGui::Combo("##rects_type", &show_windows_rect_type, "OuterRect\0" "OuterRectClipped\0" "InnerMainRect\0" "InnerClipRect\0" "ContentsRegionRect\0");
ImGui::PopItemWidth();
ImGui::Checkbox("Show clipping rectangle when hovering ImDrawCmd node", &show_drawcmd_clip_rects);
ImGui::TreePop();
}